From nobody Thu Jun 1 10:45:29 2017 Return-Path: X-Original-To: yang-doctors@ietf.org Delivered-To: yang-doctors@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 540BF12EAAE; Thu, 1 Jun 2017 10:45:22 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: Carl Moberg To: Cc: draft-ietf-lime-yang-connectionless-oam.all@ietf.org, lime@ietf.org, ietf@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 6.52.0 Auto-Submitted: auto-generated Precedence: bulk Message-ID: <149633912226.22293.8696121484014821225@ietfa.amsl.com> Date: Thu, 01 Jun 2017 10:45:22 -0700 Archived-At: Subject: [yang-doctors] Yangdoctors early review of draft-ietf-lime-yang-connectionless-oam-05 X-BeenThere: yang-doctors@ietf.org X-Mailman-Version: 2.1.22 List-Id: email list of the yang-doctors directorate List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 01 Jun 2017 17:45:22 -0000 Reviewer: Carl Moberg Review result: On the Right Track I am the assigned YANG Doctor for the LIME YANG modules, this is the notes from my initial review of draft-ietf-lime-yang-connectionless-oam done with the authors on a call last week: The module is intended to be implemented as a service model, per the module classification draft (https://tools.ietf.org/html/draft-ietf-netmod-yang-model-classification-05) with augments to topologies, I suggest it needs more description on the general concepts and how to use it. I suggest to remove the 'OAM data hierarchy' section. It does not add any information. The current version YANG module is all configuration except the 'oper' subtree. And there are no mandatory nodes (except list keys) which seems to allow for many, many combinations that likely make no sense. Please re-review and make sure this is an informed choice. Suggest to rename tp-address-type-value to tp-address-technology-type. Why does 'grouping tp-technology' only allow 'technology-null' or 'technology-string'/'leaf ipv4-icmp' and what is the meaning of the leaf ipv4-icmp content? There are a couple of occasions of 'ordered-by user' that does not have a description of the meaning of the order. Please review. Add an if-feature on path-discovery in *-methods draft. Generally I'd suggest adding more information about the various types and which specifications you are picking them up from (e.g. RD, LSP ID, etc) The specification defines a typedef that is a path in another module ("routing-instance-ref"). Suggest to reach out to authors of draft-ietf-rtgwg-ni-model-02 to see if they want the -ref type in that module for reuse. Generally check whitespace and comments. Use the '-f yang' option to YANG to fix whitespace. Downcase "IPv4-Multicast-Group-Address", and "IPv6-Multicast-Group-Address", "IP-Multicast-Group-Address" Name of top container ('oper') not very helpful, suggest renaming to 'session-statistics'? Spelling of grouping (and uses) cc-session-statsitics Filename should include revision in CODE BEGINS Don't reference drafts, pleas check RFC6087 bis and well-formed drafts for header stmts https://datatracker.ietf.org/doc/html/draft-ietf-netmod-rfc6087bis#section-4.9' From nobody Fri Jun 2 00:57:51 2017 Return-Path: X-Original-To: yang-doctors@ietf.org Delivered-To: yang-doctors@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id BE23C12ACAF; Fri, 2 Jun 2017 00:57:33 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: Carl Moberg To: Cc: lime@ietf.org, ietf@ietf.org, draft-ietf-lime-yang-oam-model.all@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 6.52.0 Auto-Submitted: auto-generated Precedence: bulk Message-ID: <149639025372.31882.14301747353948788147@ietfa.amsl.com> Date: Fri, 02 Jun 2017 00:57:33 -0700 Archived-At: Subject: [yang-doctors] Yangdoctors early review of draft-ietf-lime-yang-oam-model-10 X-BeenThere: yang-doctors@ietf.org X-Mailman-Version: 2.1.22 List-Id: email list of the yang-doctors directorate List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 02 Jun 2017 07:57:34 -0000 Reviewer: Carl Moberg Review result: On the Right Track I am the assigned YANG Doctor for the LIME YANG modules, this is the notes from my initial review of draft-ietf-lime-yang-oam-model done with the authors: First of all, would suggest we rename draft and the module itself: OLD: draft-ietf-lime-yang-oam-model NEW: draft-ietf-lime-yang-connection-oriented-oam-model OLD: ietf-conn-oam NEW: ietf-connection-oriented-oam There are several uses of 'ordered-by system;'. Unless there is a specific, and documented reason for pointing out this default behavior, I suggest we simply remove them entirely. Please review the use of case, e.g. the 'Interval' typedef should likely be all lowercase. The description fields will need some language editing before release, e.g. the "Indicate whether the CC enable." description string for the 'MEP' list. From nobody Fri Jun 2 01:15:31 2017 Return-Path: X-Original-To: yang-doctors@ietf.org Delivered-To: yang-doctors@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 844B71314CD; Fri, 2 Jun 2017 01:15:19 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: Carl Moberg To: Cc: draft-ietf-lime-yang-connectionless-oam-methods.all@ietf.org, lime@ietf.org, ietf@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 6.52.0 Auto-Submitted: auto-generated Precedence: bulk Message-ID: <149639131942.31784.1129546145558830296@ietfa.amsl.com> Date: Fri, 02 Jun 2017 01:15:19 -0700 Archived-At: Subject: [yang-doctors] Yangdoctors early review of draft-ietf-lime-yang-connectionless-oam-methods-03 X-BeenThere: yang-doctors@ietf.org X-Mailman-Version: 2.1.22 List-Id: email list of the yang-doctors directorate List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 02 Jun 2017 08:15:20 -0000 Reviewer: Carl Moberg Review result: On the Right Track I am the assigned YANG Doctor for the LIME YANG modules, this is the notes from my initial review of draft-ietf-lime-yang-oam-model done with the authors: The CODE BEGINS statement has a date designation in the file name for ietf-connectionless-oam-methods but not for ietf-connectionless-oam-persistent-methods. Pick one. From nobody Fri Jun 2 01:46:31 2017 Return-Path: X-Original-To: yang-doctors@ietfa.amsl.com Delivered-To: yang-doctors@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 86AAF12E048; Fri, 2 Jun 2017 01:46:17 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: 0.721 X-Spam-Level: X-Spam-Status: No, score=0.721 tagged_above=-999 required=5 tests=[BAYES_40=-0.001, HTML_MESSAGE=0.001, MIME_HTML_ONLY=0.723, RP_MATCHES_RCVD=-0.001, SPF_PASS=-0.001] autolearn=no autolearn_force=no Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id n3Cjdl0nWt75; Fri, 2 Jun 2017 01:46:16 -0700 (PDT) Received: from mail.tail-f.com (mail.tail-f.com [46.21.102.45]) by ietfa.amsl.com (Postfix) with ESMTP id 285C1127A91; Fri, 2 Jun 2017 01:46:13 -0700 (PDT) Received: from [10.147.40.118] (unknown [173.38.220.56]) by mail.tail-f.com (Postfix) with ESMTPSA id 6C4821AE00B6; Fri, 2 Jun 2017 10:46:11 +0200 (CEST) Mime-Version: 1.0 (Mac OS X Mail 10.3 \(3273\)) Content-Type: text/html; charset=us-ascii X-Apple-Auto-Saved: 1 X-Apple-Mail-Plain-Text-Draft: yes From: Carl Moberg X-Apple-Mail-Remote-Attachments: YES X-Apple-Base-Url: x-msg://6/ In-Reply-To: <149639131942.31784.1129546145558830296@ietfa.amsl.com> X-Apple-Windows-Friendly: 1 Date: Fri, 2 Jun 2017 10:24:35 +0200 Cc: Carl Moberg X-Apple-Mail-Signature: SKIP_SIGNATURE Content-Transfer-Encoding: quoted-printable Message-Id: <470C83DE-49C0-41DF-9305-54946A0BB076@tail-f.com> References: <149639131942.31784.1129546145558830296@ietfa.amsl.com> X-Uniform-Type-Identifier: com.apple.mail-draft To: yang-doctors@ietf.org, draft-ietf-lime-yang-connectionless-oam-methods.all@ietf.org, lime@ietf.org, ietf@ietf.org X-Mailer: Apple Mail (2.3273) Archived-At: Subject: Re: [yang-doctors] Yangdoctors early review of draft-ietf-lime-yang-connectionless-oam-methods-03 X-BeenThere: yang-doctors@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: email list of the yang-doctors directorate List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 02 Jun 2017 08:46:18 -0000



On = Jun 2, 2017, at 10:15 AM, Carl Moberg <calle@tail-f.com> = wrote:

Reviewer: Carl Moberg
Review result: On the Right = Track

I am the assigned YANG Doctor for the LIME YANG modules, = this is the
notes from my initial review of = draft-ietf-lime-yang-oam-model done

Should say: = draft-ietf-lime-yang-connectionless-oam-methods

with the authors:

The CODE BEGINS statement has a = date designation in the file name for
ietf-connectionless-oam-methods = but not for
ietf-connectionless-oam-persistent-methods. Pick = one.


_______________________________________________
yang-do= ctors mailing = list
yang-doctors@ietf.org
https://www.ietf.org/mailman/listinfo/yan= g-doctors

= From nobody Fri Jun 2 06:16:20 2017 Return-Path: X-Original-To: yang-doctors@ietfa.amsl.com Delivered-To: yang-doctors@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id A71FA12EA76 for ; Fri, 2 Jun 2017 06:16:18 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -11.803 X-Spam-Level: X-Spam-Status: No, score=-11.803 tagged_above=-999 required=5 tests=[BAYES_50=0.8, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_HI=-5, RP_MATCHES_RCVD=-0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, USER_IN_DEF_DKIM_WL=-7.5] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=cisco.com Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 5hPnNHNEOQgu for ; Fri, 2 Jun 2017 06:16:17 -0700 (PDT) Received: from aer-iport-1.cisco.com (aer-iport-1.cisco.com [173.38.203.51]) (using TLSv1.2 with cipher DHE-RSA-SEED-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 00BC712EA6A for ; Fri, 2 Jun 2017 06:16:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=@cisco.com; l=560; q=dns/txt; s=iport; t=1496409377; x=1497618977; h=to:cc:from:subject:message-id:date:mime-version: content-transfer-encoding; bh=xoJXXDUOQ0SM4zjQQkSHmr7ytGG13vJWZ0dvfGgZGes=; b=eNEpTi7aBpILuZ6lPc/pqfecg3psgUzsqY7srkkmdp8p/TOOkSB4nM2d fy4bnX68k374aGI7wrES54yRgP62pKrzb63pmzUqta6wUteNbzbdcXY6R l0VsqRxSCqtx2Nxfe7+9YD08U1Qe8+IvXOhbISWkJwT+pb2YVvd1vBK/t Q=; X-IronPort-AV: E=Sophos;i="5.39,285,1493683200"; d="scan'208";a="694850615" Received: from aer-iport-nat.cisco.com (HELO aer-core-4.cisco.com) ([173.38.203.22]) by aer-iport-1.cisco.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 02 Jun 2017 13:16:15 +0000 Received: from [10.55.221.36] (ams-bclaise-nitro3.cisco.com [10.55.221.36]) by aer-core-4.cisco.com (8.14.5/8.14.5) with ESMTP id v52DGEN3006795; Fri, 2 Jun 2017 13:16:15 GMT To: Juergen Schoenwaelder Cc: YANG Doctors , "Einar Nilsen-Nygaard (einarnn)" , "Joe Clarke (jclarke)" From: Benoit Claise Message-ID: Date: Fri, 2 Jun 2017 15:16:13 +0200 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.1.1 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Content-Language: en-US Archived-At: Subject: [yang-doctors] smidump for MIB => YANG generation and the YANG revision statement X-BeenThere: yang-doctors@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: email list of the yang-doctors directorate List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 02 Jun 2017 13:16:18 -0000 Hi Jürgen, You developed smidump, if I'm not mistaken. smidump doesn't add a revision statement for the YANG module. This might be a problem when the MIB module evolves, which in turn implies that the YANG module evolves. Would it be possible to generate the YANG revision statement based on the SMI LAST-UPDATED field? Background: in the yangcatalog.org, we index all YANG modules by module name and revision. I found https://www.ibr.cs.tu-bs.de/projects/libsmi/download/, but there is no github repo for issue tracker. Regards, Benoit From nobody Fri Jun 2 06:22:07 2017 Return-Path: X-Original-To: yang-doctors@ietfa.amsl.com Delivered-To: yang-doctors@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id A17B412EA7C for ; Fri, 2 Jun 2017 06:22:05 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -14.523 X-Spam-Level: X-Spam-Status: No, score=-14.523 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_HI=-5, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, RP_MATCHES_RCVD=-0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, USER_IN_DEF_DKIM_WL=-7.5] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=cisco.com Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 1UkGTFsUytK8 for ; Fri, 2 Jun 2017 06:22:04 -0700 (PDT) Received: from rcdn-iport-2.cisco.com (rcdn-iport-2.cisco.com [173.37.86.73]) (using TLSv1.2 with cipher DHE-RSA-SEED-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 298E812EA6A for ; 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02 Jun 2017 13:22:03 +0000 Received: from XCH-RTP-015.cisco.com (xch-rtp-015.cisco.com [64.101.220.155]) by alln-core-11.cisco.com (8.14.5/8.14.5) with ESMTP id v52DM3XX002257 (version=TLSv1/SSLv3 cipher=AES256-SHA bits=256 verify=FAIL); Fri, 2 Jun 2017 13:22:03 GMT Received: from xch-rtp-009.cisco.com (64.101.220.149) by XCH-RTP-015.cisco.com (64.101.220.155) with Microsoft SMTP Server (TLS) id 15.0.1210.3; Fri, 2 Jun 2017 09:22:02 -0400 Received: from xch-rtp-009.cisco.com ([64.101.220.149]) by XCH-RTP-009.cisco.com ([64.101.220.149]) with mapi id 15.00.1210.000; Fri, 2 Jun 2017 09:22:02 -0400 From: "Einar Nilsen-Nygaard (einarnn)" To: "Benoit Claise (bclaise)" CC: Juergen Schoenwaelder , YANG Doctors , "Joe Clarke (jclarke)" Thread-Topic: smidump for MIB => YANG generation and the YANG revision statement Thread-Index: AQHS26JrJHL5DqUbbUeBcTjdsHt6qaIR0jiA Date: Fri, 2 Jun 2017 13:22:02 +0000 Message-ID: <523511AC-EF34-46AD-B9D7-4758CCF97220@cisco.com> References: In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-mailer: Apple Mail (2.3273) x-ms-exchange-messagesentrepresentingtype: 1 x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.61.224.221] Content-Type: text/plain; charset="utf-8" Content-ID: Content-Transfer-Encoding: base64 MIME-Version: 1.0 Archived-At: Subject: Re: [yang-doctors] smidump for MIB => YANG generation and the YANG revision statement X-BeenThere: yang-doctors@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: email list of the yang-doctors directorate List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 02 Jun 2017 13:22:06 -0000 SeKAmXZlIGp1c3QgZG9uZSBhIGxpdHRsZSBpbnZlc3RpZ2F0aW9uLCBhbmQgdGhlIGN1cnJlbnQg dmVyc2lvbiBmb3IgZG93bmxvYWQgKDAuNS4wKSB0cmFuc2xhdGVzIHRoZSBTTUl2MiBsaXN0IG9m IFJFVklTSU9OIGFuZCBERVNDUklQVElPTiBjbGF1c2VzIGNvcnJlY3RseSBpbnRvIGEgbGlzdCBv ZiBZQU5HIHJldmlzaW9uICsgZGVzY3JpcHRpb24gY2xhdXNlcy4gQWxzbywgbG9va2luZyBhdCBF TlRJVFktTUlCLCB3ZSBjYW4gc2VlIHRoYXQgdGhlIExBU1QtVVBEQVRFRCBkYXRlIGlzIHRoZSBz YW1lIGFzIHRoZSBsYXN0IHJldmlzaW9uLCBzbyB3ZSAqc2hvdWxkKiBiZSBjb3JyZWN0bHkgZ2Vu ZXJhdGluZyBkYXRhIGlmIHRoZSBNSUIgaXMgY29ycmVjdGx5IHNwZWNpZmllZC4NCg0KSSB3b25k ZXIgaWYgdGhlIGdlbmVyYXRlZCBZQU5HIGZpbGVzIHdl4oCZdmUgYmVlbiBsb29raW5nIGF0IHdl cmUgY3JlYXRlZCBieSBhbiBvbGRlciB2ZXJzaW9uIG9mIHNtaWR1bXA/DQoNCkNoZWVycywNCg0K RWluYXINCg0KDQo+IE9uIDIgSnVuIDIwMTcsIGF0IDE0OjE2LCBCZW5vaXQgQ2xhaXNlIChiY2xh aXNlKSA8YmNsYWlzZUBjaXNjby5jb20+IHdyb3RlOg0KPiANCj4gSGkgSsO8cmdlbiwNCj4gDQo+ IFlvdSBkZXZlbG9wZWQgc21pZHVtcCwgaWYgSSdtIG5vdCBtaXN0YWtlbi4NCj4gc21pZHVtcCBk b2Vzbid0IGFkZCBhIHJldmlzaW9uIHN0YXRlbWVudCBmb3IgdGhlIFlBTkcgbW9kdWxlLg0KPiBU aGlzIG1pZ2h0IGJlIGEgcHJvYmxlbSB3aGVuIHRoZSBNSUIgbW9kdWxlIGV2b2x2ZXMsIHdoaWNo IGluIHR1cm4gaW1wbGllcyB0aGF0IHRoZSBZQU5HIG1vZHVsZSBldm9sdmVzLg0KPiBXb3VsZCBp dCBiZSBwb3NzaWJsZSB0byBnZW5lcmF0ZSB0aGUgWUFORyByZXZpc2lvbiBzdGF0ZW1lbnQgYmFz ZWQgb24gdGhlIFNNSSBMQVNULVVQREFURUQgZmllbGQ/DQo+IEJhY2tncm91bmQ6IGluIHRoZSB5 YW5nY2F0YWxvZy5vcmcsIHdlIGluZGV4IGFsbCBZQU5HIG1vZHVsZXMgYnkgbW9kdWxlIG5hbWUg YW5kIHJldmlzaW9uLg0KPiANCj4gSSBmb3VuZCBodHRwczovL3d3dy5pYnIuY3MudHUtYnMuZGUv cHJvamVjdHMvbGlic21pL2Rvd25sb2FkLywgYnV0IHRoZXJlIGlzIG5vIGdpdGh1YiByZXBvIGZv ciBpc3N1ZSB0cmFja2VyLg0KPiANCj4gUmVnYXJkcywgQmVub2l0DQoNCg== From nobody Fri Jun 2 06:31:20 2017 Return-Path: X-Original-To: yang-doctors@ietfa.amsl.com Delivered-To: yang-doctors@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 84A5112EB94 for ; 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02 Jun 2017 13:31:16 +0000 Received: from XCH-RTP-006.cisco.com (xch-rtp-006.cisco.com [64.101.220.146]) by alln-core-11.cisco.com (8.14.5/8.14.5) with ESMTP id v52DVFiC009961 (version=TLSv1/SSLv3 cipher=AES256-SHA bits=256 verify=FAIL); Fri, 2 Jun 2017 13:31:16 GMT Received: from xch-rtp-009.cisco.com (64.101.220.149) by XCH-RTP-006.cisco.com (64.101.220.146) with Microsoft SMTP Server (TLS) id 15.0.1210.3; Fri, 2 Jun 2017 09:31:15 -0400 Received: from xch-rtp-009.cisco.com ([64.101.220.149]) by XCH-RTP-009.cisco.com ([64.101.220.149]) with mapi id 15.00.1210.000; Fri, 2 Jun 2017 09:31:15 -0400 From: "Einar Nilsen-Nygaard (einarnn)" To: "Benoit Claise (bclaise)" CC: Juergen Schoenwaelder , YANG Doctors , "Joe Clarke (jclarke)" Thread-Topic: smidump for MIB => YANG generation and the YANG revision statement Thread-Index: AQHS26JrJHL5DqUbbUeBcTjdsHt6qaIR0jiAgAACkoA= Date: Fri, 2 Jun 2017 13:31:15 +0000 Message-ID: <43629D10-38A0-4737-BD83-DF737BCC24A8@cisco.com> References: <523511AC-EF34-46AD-B9D7-4758CCF97220@cisco.com> In-Reply-To: <523511AC-EF34-46AD-B9D7-4758CCF97220@cisco.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-mailer: Apple Mail (2.3273) x-ms-exchange-messagesentrepresentingtype: 1 x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.61.224.221] Content-Type: text/plain; charset="utf-8" Content-ID: Content-Transfer-Encoding: base64 MIME-Version: 1.0 Archived-At: Subject: Re: [yang-doctors] smidump for MIB => YANG generation and the YANG revision statement X-BeenThere: yang-doctors@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: email list of the yang-doctors directorate List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 02 Jun 2017 13:31:18 -0000 T3IgZnJvbSBNSUJzIHRoYXQgYXJlIGluY29ycmVjdGx5IHNwZWNpZmllZCENCg0KPiBPbiAyIEp1 biAyMDE3LCBhdCAxNDoyMiwgRWluYXIgTmlsc2VuLU55Z2FhcmQgKGVpbmFybm4pIDxlaW5hcm5u QGNpc2NvLmNvbT4gd3JvdGU6DQo+IA0KPiBJ4oCZdmUganVzdCBkb25lIGEgbGl0dGxlIGludmVz dGlnYXRpb24sIGFuZCB0aGUgY3VycmVudCB2ZXJzaW9uIGZvciBkb3dubG9hZCAoMC41LjApIHRy YW5zbGF0ZXMgdGhlIFNNSXYyIGxpc3Qgb2YgUkVWSVNJT04gYW5kIERFU0NSSVBUSU9OIGNsYXVz ZXMgY29ycmVjdGx5IGludG8gYSBsaXN0IG9mIFlBTkcgcmV2aXNpb24gKyBkZXNjcmlwdGlvbiBj bGF1c2VzLiBBbHNvLCBsb29raW5nIGF0IEVOVElUWS1NSUIsIHdlIGNhbiBzZWUgdGhhdCB0aGUg TEFTVC1VUERBVEVEIGRhdGUgaXMgdGhlIHNhbWUgYXMgdGhlIGxhc3QgcmV2aXNpb24sIHNvIHdl ICpzaG91bGQqIGJlIGNvcnJlY3RseSBnZW5lcmF0aW5nIGRhdGEgaWYgdGhlIE1JQiBpcyBjb3Jy ZWN0bHkgc3BlY2lmaWVkLg0KPiANCj4gSSB3b25kZXIgaWYgdGhlIGdlbmVyYXRlZCBZQU5HIGZp bGVzIHdl4oCZdmUgYmVlbiBsb29raW5nIGF0IHdlcmUgY3JlYXRlZCBieSBhbiBvbGRlciB2ZXJz aW9uIG9mIHNtaWR1bXA/DQo+IA0KPiBDaGVlcnMsDQo+IA0KPiBFaW5hcg0KPiANCj4gDQo+PiBP biAyIEp1biAyMDE3LCBhdCAxNDoxNiwgQmVub2l0IENsYWlzZSAoYmNsYWlzZSkgPGJjbGFpc2VA Y2lzY28uY29tPiB3cm90ZToNCj4+IA0KPj4gSGkgSsO8cmdlbiwNCj4+IA0KPj4gWW91IGRldmVs b3BlZCBzbWlkdW1wLCBpZiBJJ20gbm90IG1pc3Rha2VuLg0KPj4gc21pZHVtcCBkb2Vzbid0IGFk ZCBhIHJldmlzaW9uIHN0YXRlbWVudCBmb3IgdGhlIFlBTkcgbW9kdWxlLg0KPj4gVGhpcyBtaWdo dCBiZSBhIHByb2JsZW0gd2hlbiB0aGUgTUlCIG1vZHVsZSBldm9sdmVzLCB3aGljaCBpbiB0dXJu IGltcGxpZXMgdGhhdCB0aGUgWUFORyBtb2R1bGUgZXZvbHZlcy4NCj4+IFdvdWxkIGl0IGJlIHBv c3NpYmxlIHRvIGdlbmVyYXRlIHRoZSBZQU5HIHJldmlzaW9uIHN0YXRlbWVudCBiYXNlZCBvbiB0 aGUgU01JIExBU1QtVVBEQVRFRCBmaWVsZD8NCj4+IEJhY2tncm91bmQ6IGluIHRoZSB5YW5nY2F0 YWxvZy5vcmcsIHdlIGluZGV4IGFsbCBZQU5HIG1vZHVsZXMgYnkgbW9kdWxlIG5hbWUgYW5kIHJl dmlzaW9uLg0KPj4gDQo+PiBJIGZvdW5kIGh0dHBzOi8vd3d3Lmlici5jcy50dS1icy5kZS9wcm9q ZWN0cy9saWJzbWkvZG93bmxvYWQvLCBidXQgdGhlcmUgaXMgbm8gZ2l0aHViIHJlcG8gZm9yIGlz c3VlIHRyYWNrZXIuDQo+PiANCj4+IFJlZ2FyZHMsIEJlbm9pdA0KPiANCg0K From nobody Fri Jun 2 06:50:01 2017 Return-Path: X-Original-To: yang-doctors@ietfa.amsl.com Delivered-To: yang-doctors@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 0343412EBC5 for ; 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Fri, 2 Jun 2017 15:49:51 +0200 (CEST) Date: Fri, 2 Jun 2017 15:49:51 +0200 From: Juergen Schoenwaelder To: "Einar Nilsen-Nygaard (einarnn)" Cc: "Benoit Claise (bclaise)" , YANG Doctors , "Joe Clarke (jclarke)" Message-ID: <20170602134951.GA94354@elstar.local> Reply-To: Juergen Schoenwaelder Mail-Followup-To: "Einar Nilsen-Nygaard (einarnn)" , "Benoit Claise (bclaise)" , YANG Doctors , "Joe Clarke (jclarke)" References: <523511AC-EF34-46AD-B9D7-4758CCF97220@cisco.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline X-Clacks-Overhead: GNU Terry Pratchett Content-Transfer-Encoding: 8bit In-Reply-To: <523511AC-EF34-46AD-B9D7-4758CCF97220@cisco.com> User-Agent: Mutt/1.6.0 (2016-04-01) Archived-At: Subject: Re: [yang-doctors] smidump for MIB => YANG generation and the YANG revision statement X-BeenThere: yang-doctors@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: email list of the yang-doctors directorate List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 02 Jun 2017 13:49:58 -0000 On Fri, Jun 02, 2017 at 01:22:02PM +0000, Einar Nilsen-Nygaard (einarnn) wrote: > I’ve just done a little investigation, and the current version for download (0.5.0) translates the SMIv2 list of REVISION and DESCRIPTION clauses correctly into a list of YANG revision + description clauses. Also, looking at ENTITY-MIB, we can see that the LAST-UPDATED date is the same as the last revision, so we *should* be correctly generating data if the MIB is correctly specified. > Yes, the smi2yang translation translates SMIv2 REVISION clauses to YANG revision statements. If the MIB module has a proper REVISION clause matching the LAST-UPDATED clause, everything should be fine. If the MIB does announce a LAST-UPDATED time that does not match the REVISION clause, this will get unnoticed (although smidump will warn about this). /js -- Juergen Schoenwaelder Jacobs University Bremen gGmbH Phone: +49 421 200 3587 Campus Ring 1 | 28759 Bremen | Germany Fax: +49 421 200 3103 From nobody Fri Jun 9 06:59:23 2017 Return-Path: X-Original-To: yang-doctors@ietfa.amsl.com Delivered-To: yang-doctors@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id E39EA127B57 for ; Fri, 9 Jun 2017 06:59:21 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -14.501 X-Spam-Level: X-Spam-Status: No, score=-14.501 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_HI=-5, RP_MATCHES_RCVD=-0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001, USER_IN_DEF_DKIM_WL=-7.5] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=cisco.com Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id jR2dKkl1S3P7 for ; Fri, 9 Jun 2017 06:59:19 -0700 (PDT) Received: from aer-iport-4.cisco.com (aer-iport-4.cisco.com [173.38.203.54]) (using TLSv1.2 with cipher DHE-RSA-SEED-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 193C11241FC for ; Fri, 9 Jun 2017 06:59:18 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=@cisco.com; l=8607; q=dns/txt; s=iport; t=1497016759; x=1498226359; h=subject:references:to:from:message-id:date:mime-version: in-reply-to; bh=RmSWSbCqvFUNi+Q4PrH3XOQAMA1+jzb6E/9AmsslXgk=; b=Iaqd5mVqtm8jbf4sQOTLrcDdRT3f/QwGz2I3HWMoarNYdNYCxruCDJq9 Ey1Kjk4VJg2DGggkPeBZ1suT2TkX5l+G7DU+2+d9Uo+L0TGI3FdfAoGzW WiWrjcW0Pa7Ba3jRVDUQmbTwXZnH96ciPHOgPOPlUeUXIk0Rc0jVMRkmQ g=; X-IronPort-AV: E=Sophos;i="5.39,317,1493683200"; d="scan'208,217";a="655301703" Received: from aer-iport-nat.cisco.com (HELO aer-core-4.cisco.com) ([173.38.203.22]) by aer-iport-4.cisco.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 09 Jun 2017 13:59:17 +0000 Received: from [10.55.221.37] (ams-bclaise-nitro4.cisco.com [10.55.221.37]) by aer-core-4.cisco.com (8.14.5/8.14.5) with ESMTP id v59DxHYE015045; Fri, 9 Jun 2017 13:59:17 GMT References: <767b9462-80ad-2942-f67e-31789239b894@cisco.com> To: YANG Doctors , "Robert Wilton -X (rwilton - Ensoft Ltd at Cisco)" From: Benoit Claise X-Forwarded-Message-Id: <767b9462-80ad-2942-f67e-31789239b894@cisco.com> Message-ID: <14bdf15a-1803-2607-13c6-346be07b51f0@cisco.com> Date: Fri, 9 Jun 2017 15:59:17 +0200 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.1.1 MIME-Version: 1.0 In-Reply-To: <767b9462-80ad-2942-f67e-31789239b894@cisco.com> Content-Type: multipart/alternative; boundary="------------CFA290F9B7961CB0CA7CFA4B" Content-Language: en-US Archived-At: Subject: [yang-doctors] Fwd: Important: Guidelines for YANG module authors X-BeenThere: yang-doctors@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: email list of the yang-doctors directorate List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 09 Jun 2017 13:59:22 -0000 This is a multi-part message in MIME format. --------------CFA290F9B7961CB0CA7CFA4B Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Dear YANG doctors, Here is an important message for your YANG doctor reviews. Rob Wilton developed some tooling to help YANG module designers to transition to NMDA. Rob, would you mind explaining to everybody on this list, and maybe on the NETMOD if you believe this is relevant for everybody. Regards, Benoit -------- Forwarded Message -------- Subject: Important: Guidelines for YANG module authors Date: Fri, 9 Jun 2017 15:56:39 +0200 From: Benoit Claise To: NETMOD Working Group Dear all, Now that the new NETMOD and NETCONF charters have been approved, it's time to think about the guidelines for YANG module authors. The Network Management Datastore Architecture (NMDA) addresses the so-called "OpState problem" that has been the subject of much discussion in the IETF. NMDA is still in development, and there will be a transition period before NMDA solutions are universally available. The NETMOD Datastore Design Team and the Routing Yang Architecture Design Team have worked with Alia and Benoit to create initial guidelines for how the NMDA, as defined in draft-ietf-netmod-revised-datastores , impacts Yang models. The draft-dsdt-nmda-guidelines individual draft was foundational in helping creating those guidelines. If you have questions or concerns on how these guidelines should apply to work of interest, please contact your WG Chairs or ADs. It is our strong recommendation, as ADs with agreement from the NETMOD WG Chairs, that models SHOULD move as quickly as possible to the NMDA. The specific approach to be taken for models being developed now and during the NMDA transition period should be based on both the expected usage and the maturity of the data model. 1. New models and models that are not concerned with the operational state of configuration information SHOULD immediately be structured to be NMDA-compatible. 2. Models that require immediate support for "in use" and "system created" information SHOULD be structured for NMDA. Then derived versions of these models SHOULD be created, either by hand or with suitable tools, that follow the current modeling strategies. In some cases, the non-NMDA model may be an existing model and not derived from the NMDA model. In all cases, the NMDA and non-NMDA modules SHOULD be published in the same document, with NMDA modules in the document main body and the non-NMDA modules in an Appendix. The use of the non-NMDA model will allow temporary bridging of the time period until NMDA implementations are available. The non-NMDA module names should include ’-state’ appended. We would like to thank Kent Watsen, Lou Berger, Rob Wilton, Martin Bjorklund, Phil Shafer, Acee Lindem, Chris Hopps, Juergen Schoenwaelder, and all others who helped develop these guidelines. Regards, Alia Atlas, Routing AD Deborah Brungard, Routing AD Alvaro Retana, Routing AD Warren Kumari, Operations & Management AD Benoit Claise, Operations & Management AD --------------CFA290F9B7961CB0CA7CFA4B Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: 8bit Dear YANG doctors,

Here is an important message for your YANG doctor reviews.
Rob Wilton developed some tooling to help YANG module designers to transition to NMDA.

Rob, would you mind explaining to everybody on this list, and maybe on the NETMOD if you believe this is relevant for everybody.

Regards, Benoit

-------- Forwarded Message --------
Subject: Important: Guidelines for YANG module authors
Date: Fri, 9 Jun 2017 15:56:39 +0200
From: Benoit Claise <bclaise@cisco.com>
To: NETMOD Working Group <netmod@ietf.org>


Dear all,

Now that the new NETMOD and NETCONF charters have been approved, it's time to think about the guidelines for YANG module authors.

The Network Management Datastore Architecture (NMDA) addresses the so-called "OpState problem" that has been the subject of much discussion in the IETF. NMDA is still in development, and there will be a transition period before NMDA solutions are universally available.

The NETMOD Datastore Design Team and the Routing Yang Architecture Design Team have worked with Alia and Benoit to create initial guidelines for how the NMDA, as defined in draft-ietf-netmod-revised-datastores, impacts Yang models. The draft-dsdt-nmda-guidelines individual draft was foundational in helping creating those guidelines.

If you have questions or concerns on how these guidelines should apply to work of interest, please contact your WG Chairs or ADs.

It is our strong recommendation, as ADs with agreement from the NETMOD WG Chairs, that models SHOULD move as quickly as possible to the NMDA. The specific approach to be taken for models being developed now and during the NMDA transition period should be based on both the expected usage and the maturity of the data model.

1. New models and models that are not concerned with the operational state of configuration information SHOULD immediately be structured to be NMDA-compatible.

2. Models that require immediate support for "in use" and "system created" information SHOULD be structured for NMDA. Then derived versions of these models SHOULD be created, either by hand or with suitable tools, that follow the current modeling strategies. In some cases, the non-NMDA model may be an existing model and not derived from the NMDA model. In all cases, the NMDA and non-NMDA modules SHOULD be published in the same document, with NMDA modules in the document main body and the non-NMDA modules in an Appendix. The use of the non-NMDA model will allow temporary bridging of the time period until NMDA implementations are available. The non-NMDA module names should include ’-state’ appended.

We would like to thank Kent Watsen, Lou Berger, Rob Wilton, Martin Bjorklund, Phil Shafer, Acee Lindem, Chris Hopps, Juergen Schoenwaelder, and all others who helped develop these guidelines.

Regards,
Alia Atlas, Routing AD
Deborah Brungard, Routing AD
Alvaro Retana, Routing AD
Warren Kumari, Operations & Management AD
Benoit Claise, Operations & Management AD
--------------CFA290F9B7961CB0CA7CFA4B-- From nobody Sat Jun 10 00:39:03 2017 Return-Path: X-Original-To: yang-doctors@ietfa.amsl.com Delivered-To: yang-doctors@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id EE189126C23; Sat, 10 Jun 2017 00:39:01 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -14.502 X-Spam-Level: X-Spam-Status: No, score=-14.502 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_HI=-5, RP_MATCHES_RCVD=-0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, USER_IN_DEF_DKIM_WL=-7.5] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=cisco.com Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id YGh4EjhAWSqD; Sat, 10 Jun 2017 00:39:00 -0700 (PDT) Received: from aer-iport-4.cisco.com (aer-iport-4.cisco.com [173.38.203.54]) (using TLSv1.2 with cipher DHE-RSA-SEED-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id A6112124B0A; Sat, 10 Jun 2017 00:38:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=@cisco.com; l=5855; q=dns/txt; s=iport; t=1497080340; x=1498289940; h=subject:references:to:from:message-id:date:mime-version: in-reply-to; bh=CMt/ISBn8oGKkMa/CJnjglYoZRsVjTW9bj2iOTZ32WM=; b=G7d6O8oTSGW0BsIpQqlEmGjKKvCro5KAQS8dI80MV/Q+yQ7avxdeOAHi etdjFU4NXo7wcLtHCOETq5lvZ2ytFfLoS14SjIOGLYeupjlWb38qEOOht pPfGuF9YrpjbEIvvNdRj9gOdaH3EeoY0odi1s1WgswNa0wJZ91WWIgpTk Y=; X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: =?us-ascii?q?A0CVAADloDtZ/xbLJq1cGQEBAQEBAQEBA?= =?us-ascii?q?QEBBwEBAQEBhUeODHOQe4gqiCCFOYIRhiQCGoMmGAECAQEBAQEBAWsohRgBAwO?= =?us-ascii?q?BCQ8NAwECLwIfLAIIBgEMBgIBARCKAAMVs2YrhxcNhBUBAQEBAQEBAQEBAQEBA?= =?us-ascii?q?QEBAQEBH4ZhgWArgnWCWIIpCYVTAQSeAjuOZYRjixSGcotGaIg9HziBCjAhCBs?= =?us-ascii?q?Vh1g+NolzAQEB?= X-IronPort-AV: E=Sophos;i="5.39,322,1493683200"; d="scan'208,217";a="655316832" Received: from aer-iport-nat.cisco.com (HELO aer-core-2.cisco.com) ([173.38.203.22]) by aer-iport-4.cisco.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 10 Jun 2017 07:38:55 +0000 Received: from [10.55.221.37] (ams-bclaise-nitro4.cisco.com [10.55.221.37]) by aer-core-2.cisco.com (8.14.5/8.14.5) with ESMTP id v5A7ct4r010604; Sat, 10 Jun 2017 07:38:55 GMT References: To: YANG Doctors , "netconf-chairs@ietf.org" , "netmod-chairs@ietf.org" From: Benoit Claise X-Forwarded-Message-Id: Message-ID: <8e00b498-8d6d-72d1-23d8-7941e90dfae7@cisco.com> Date: Sat, 10 Jun 2017 09:38:54 +0200 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.1.1 MIME-Version: 1.0 In-Reply-To: Content-Type: multipart/alternative; boundary="------------AF26C6152F3284102956B1D4" Content-Language: en-US Archived-At: Subject: [yang-doctors] Fwd: Side meetings experiment at IETF 99 X-BeenThere: yang-doctors@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: email list of the yang-doctors directorate List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 10 Jun 2017 07:39:02 -0000 This is a multi-part message in MIME format. --------------AF26C6152F3284102956B1D4 Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: quoted-printable YANG gang, I know that you guys hold side meetings on regular basis during the IETF = week. That might be of interest to you. Regards, B. -------- Forwarded Message -------- Subject: Side meetings experiment at IETF 99 Date: Fri, 26 May 2017 16:24:32 -0400 From: Suresh Krishnan To: IETF Discussion CC: IESG Hi all, The IESG has discussed how to improve the path for potential new topic= s to be discussed transparently in the IETF community. For some cross-ar= ea topics, it is quite useful to have active conversation among a group o= f people to work on defining the potential work and how it interacts with= existing efforts. As the IETF week is quite busy, it can be a challenge= to arrange these side-meetings to avoid conflicts. To facilitate the sc= heduling of these conversational side-meetings, the IESG has decided to p= rovide a meeting room at IETF 99 in Prague for around 30 people, with a U= -shaped table, that will be available for first-come first-served (FCFS) = signup online as soon as the final IETF meeting agenda is published. Thi= s experiment will be conducted for IETF 99 in Prague and will replace AD = approval for rooms for side-meetings for potential new topics. Proponents= of potential new topics are reminded that the BoF deadline is June 2; th= is includes non-WG forming BoFs. The on-site signup FCFS room (seats abo= ut 16) will continue to be available at IETF 99. 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Sun, 11 Jun 2017 23:32:40 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -4.301 X-Spam-Level: X-Spam-Status: No, score=-4.301 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_MED=-2.3, RP_MATCHES_RCVD=-0.001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=cesnet.cz Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id JJM4I9lotlnM; Sun, 11 Jun 2017 23:32:38 -0700 (PDT) Received: from office2.cesnet.cz (office2.cesnet.cz [195.113.144.244]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 53048129C0E; Sun, 11 Jun 2017 23:32:37 -0700 (PDT) Received: from [IPv6:2001:67c:1220:80c:921b:eff:fe59:4360] (unknown [IPv6:2001:67c:1220:80c:921b:eff:fe59:4360]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by office2.cesnet.cz (Postfix) with ESMTPSA id B350420011; Mon, 12 Jun 2017 08:32:35 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cesnet.cz; s=office2; t=1497249155; bh=xZwzO68dmKjWzFEhznU2OrIescb5+Z0sYo0W/scn0vs=; h=Subject:To:Cc:References:From:Date:In-Reply-To; b=aLqaLpzgYMlZKXncKsFh/QeG/tPZs/CxsxzggKt11uCaEAI2PzqfGWclNtl+7mu/4 3phuWRTbkyAhWKdmBEqHyuIbysQzd6ubDTAMjLdKm5vI4PFZ+aJ4fQ2vVtFkD0wPLE HxLzVPB5gde1HLaLL3f95wOuWmuaxfWpylHXsCJw= To: "Acee Lindem (acee)" , "yang-doctors@ietf.org" Cc: "draft-ietf-rtgwg-routing-types.all@ietf.org" , "rtgwg@ietf.org" References: <823c6e8a-9544-5544-8a99-d05c0ffc7017@cesnet.cz> From: =?UTF-8?B?UmFkZWsgS3JlasSNw60=?= Message-ID: <6fc7d6b3-bf13-6861-01d3-c0ed52532629@cesnet.cz> Date: Mon, 12 Jun 2017 08:32:35 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.1.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Content-Language: en-US Archived-At: Subject: Re: [yang-doctors] Yangdoctors early review of draft-ietf-rtgwg-routing-types-04 X-BeenThere: yang-doctors@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: email list of the yang-doctors directorate List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 12 Jun 2017 06:32:41 -0000 Hi Acee, sorry for the delay. I've checked the changes and the document as well as both the modules seem fine to me now. Regards, Radek Dne 24.5.2017 v 18:23 Acee Lindem (acee) napsal(a): > Hi Radek, > > I believe I have addressed your YANG Doctor comments in the -05 version of > the draft. I used the template in RFC6087Bis, Appendix C which resulted in > some reorganization of ietf-routing-types. > > Thanks, > Acee > > On 5/24/17, 6:45 AM, "Radek Krejčí" wrote: > >> Reviewer: Radek Krejčí >> Review result: Ready with Nits >> >> I have reviewed changes made to draft-ietf-rtgwg-routing-types between >> revision 02 and 04 (04 was published just a week after 03). The main >> change is splitting the module into 2 modules: ietf-routing-types and >> iana-routing-types. >> >> iana-routing-types: >> - since it is IANA-maintained module, IANA should be the 'organization' >> and also the 'contact' value should be changed accordingly (see >> iana-if-type) >> >> ietf-routing-types: >> - please follow the contact template available in RFC 6087 Appendix B (or >> RFC6087bis, Appendix C) >> >> draft text: >> - if iana-routing-types is supposed to be IANA-maintained module, isn't >> IANA also supposed to be XML registrant contact (IANA Considerations >> section)? >> - my fault from previous review - since the module imports >> ietf-yang-types, it MUST contain reference to its RFC, which is RFC 6991 >> (not RFC 6021 as I wrote in my review). So move RFC 6991 reference from >> Informative references section into Normative references where it will >> replace reference to RFC 6021. >> >> Radek From nobody Mon Jun 12 12:39:32 2017 Return-Path: X-Original-To: yang-doctors@ietfa.amsl.com Delivered-To: yang-doctors@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id DBBDA1270A3 for ; Mon, 12 Jun 2017 12:39:29 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.999 X-Spam-Level: X-Spam-Status: No, score=-1.999 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, FREEMAIL_FROM=0.001, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_PASS=-0.001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=gmail.com Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id wd6mA-81VJ0N for ; Mon, 12 Jun 2017 12:39:28 -0700 (PDT) Received: from mail-wr0-x236.google.com (mail-wr0-x236.google.com [IPv6:2a00:1450:400c:c0c::236]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id B94B9127077 for ; Mon, 12 Jun 2017 12:39:27 -0700 (PDT) Received: by mail-wr0-x236.google.com with SMTP id v104so108164109wrb.0 for ; Mon, 12 Jun 2017 12:39:27 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:mime-version:thread-index :content-language; bh=JvRypRcjPIOzp8uYz0AMRKywPqJPQqd9IjYB+jJWdkw=; b=MQkKcqYf8pGLTbpI14DtpnDymZB3uUmUaZoB5wN5cbP3IVrKr9hcmObFSEoOaog9RG mvlvhYXZNQWKHHbmKHuiZmUrlN43vweBJB7To3FBFAa078fTwoONMzG+UwW8mjqYaJCJ ItxxCZPPljVFU+GNWgCEoP7mKVfd3GuYibPWYwDU6bkY60covwzSmPeG3jN4AbhgRzRa VhJGXkoID0kkmKK1xZvepvQiAInMB0amcd9QKKtY89E/WDYnm9Y8z5/73XsQ1a89Bcgr dfGDl29L/JveS0d98MsDqjryNd1OnE8SBq8NQpRmJ2XeAuNbR23112jeJZ3hnb1O62xb x0lA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :thread-index:content-language; bh=JvRypRcjPIOzp8uYz0AMRKywPqJPQqd9IjYB+jJWdkw=; b=TlSWlXB8CP9Eufd6rE75ekBLTvjaUUP7Fd4ymsfgbCiMXCM3qLq9lw7KmvTWxhVWAx sPWKfzd6LpJj+SjyVVIm4RG6eoFuMpgxhIIGsSLBsW+NgSEItr0HZj45DAgQf/Cw67RE 1b4IzjaqJydFJBRmbsLOjjF6ZVGX4LMo2XTi3wF8DhkGsw2fZQOMhRC8ZWJuPynD+oca 91FmgQpmtpdPB6m/9GX7kIQMnCxvM4PSPrpV27Gfj0Of0foehRFGocP7D2U746G4JyWe v6YPOEY+4c7D30ouA38KYmKUAvE3Yb0oenwoIS3qk/99yEVSDbbvJSCRsZL/yxoCglDz UwEA== X-Gm-Message-State: AKS2vOw/v5msL2xBUohqyMkU6eTeO8Vao2nA70SEscqSvTcsa2OuYdjY bJN7T7lzu78xlg== X-Received: by 10.28.196.2 with SMTP id u2mr346670wmf.104.1497296365491; Mon, 12 Jun 2017 12:39:25 -0700 (PDT) Received: from DESKTOPFLHJVQJ (p57A77CC4.dip0.t-ipconnect.de. [87.167.124.196]) by smtp.gmail.com with ESMTPSA id r78sm10438145wrb.37.2017.06.12.12.39.24 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 12 Jun 2017 12:39:25 -0700 (PDT) From: "Mehmet Ersue" To: "'YANG Doctors'" Cc: "'Dan Romascanu'" Date: Mon, 12 Jun 2017 21:39:24 +0200 Message-ID: <006201d2e3b3$9941c080$cbc54180$@gmail.com> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0063_01D2E3C4.5CCDEBE0" X-Mailer: Microsoft Outlook 16.0 Thread-Index: AdLjszZUexIdsMyPSI6nU0XEZRLbzQ== Content-Language: de Archived-At: Subject: [yang-doctors] Weekly Summary of Open review assignments for YANG Doctors X-BeenThere: yang-doctors@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: email list of the yang-doctors directorate List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 12 Jun 2017 19:39:30 -0000 This is a multipart message in MIME format. ------=_NextPart_000_0063_01D2E3C4.5CCDEBE0 Content-Type: text/plain; charset="iso-8859-2" Content-Transfer-Encoding: quoted-printable Dear YANG Doctors, =20 Following reviewers have pending review assignments. As a few of them are on the list already some time, I would like to ask = the reviewers to close the open reviews as soon as possible. =20 Many Thanks to Carl for reviewing all 3 drafts on the list. =20 Last calls: =20 Reviewer Deadline Draft Kent Watsen 2017-02-27 draft-ietf-netmod-syslog-model-12=20 =20 Early review requests: =20 Reviewer Due Draft Dean Bogdanovic 2017-04-07 draft-ietf-mpls-ldp-yang-01=20 Giles Heron 2017-04-28 draft-ietf-rtgwg-device-model-02=20 Jan Lindblad 2017-06-15 draft-ietf-trill-yang-oam-05 =20 =20 Next in the reviewer rotation: =20 Ladislav Lhotka J=FCrgen Sch=F6nw=E4lder Kent Watsen Andy Bierman Dean Bogdanovic Giles Heron Martin Bjorklund Radek Krej=E8=ED Carl Moberg Bert Wijnen Mahesh Jethanandani Jan Lindblad =20 Thanks, Mehmet ------=_NextPart_000_0063_01D2E3C4.5CCDEBE0 Content-Type: text/html; charset="iso-8859-2" Content-Transfer-Encoding: quoted-printable

Dear YANG = Doctors,

 

Following = reviewers have pending review assignments.

As a few of = them are on the list already some time, I would like to ask the = reviewers to close the open reviews as soon as = possible.

 

Many Thanks = to Carl for reviewing all 3 drafts on the list.

 

Last calls:

 

Reviewer        &= nbsp;     Deadline     = Draft

Kent = Watsen           2017-02-27   draft-ietf-netmod-syslog-model= -12

 

Early review = requests:

 

Reviewer          = ;     Due        = Draft

Dean = Bogdanovic        2017-04-07 = draft-ietf-mpls-ldp-yang-01

Giles = Heron            = 2017-04-28 draft-ietf-rtgwg-device-model-02

Jan = Lindblad=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 2017-06-15 = draft-ietf-trill-yang-oam-05

 

 

Next in the = reviewer rotation:

 

Ladislav Lhotka

J=FCrgen = Sch=F6nw=E4lder

Kent = Watsen

Andy Bierman

Dean Bogdanovic

Giles = Heron

Martin = Bjorklund

Radek = Krej=E8=ED

Carl Moberg

Bert Wijnen

Mahesh = Jethanandani

Jan Lindblad

 

Thanks,

Mehmet

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09:58:43 GMT References: To: NETMOD Working Group Cc: Henrik Levkowetz , YANG Doctors From: Benoit Claise X-Forwarded-Message-Id: Message-ID: <532b83f9-1d77-c901-b2d8-87a37ba43dd1@cisco.com> Date: Fri, 16 Jun 2017 11:58:42 +0200 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.2.0 MIME-Version: 1.0 In-Reply-To: Content-Type: multipart/alternative; boundary="------------EDDF964F9B1C52A2620AFADC" Content-Language: en-US Archived-At: Subject: [yang-doctors] YANG-related addition (New datatracker release: v6.55.0) X-BeenThere: yang-doctors@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: email list of the yang-doctors directorate List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 16 Jun 2017 09:58:50 -0000 This is a multi-part message in MIME format. --------------EDDF964F9B1C52A2620AFADC Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit Dear all, Great YANG-related addition to the tracker, thanks to Henrik. For the development mode tracker New datatracker release: v6.55.0 will be installed shortly. Regards, Benoit -------- Forwarded Message -------- Subject: New datatracker release: v6.55.0 Date: Fri, 16 Jun 2017 02:38:52 -0700 From: Henrik Levkowetz To: codesprints@ietf.org, iesg@ietf.org, wgchairs@ietf.org Hi, This is an automatic notification about a new datatracker release, v6.55.0, generated when running the mkrelease script. Release notes: ietfdb (6.55.0) ietf; urgency=medium **Improved Yang validation support** This release updates and expands the Yang support in the datatracker. In addition to checking yang modules in submitted drafts using pyang, it now also does a yanglint check. The yang validation results are available by clicking on the red or green yin/yang symbols which show for drafts that contain yang models. For drafts where one or more models were found at submission time, the pyang and yanglint checks are re-run once per day, to catch newly arrived models in the library directories (both rfc and draft models). Additional details, from the commit log: * Added a new yang checker, 'yanglint', to the existing Yang checker class, in addition to the existing 'pyang' checker. * Added modal overlay displays showing the yang check results every place the yin/yang symbol is shown (red or green) to indicate the presencee and result of yang checks. Added a Yang Validation: line in the document meta-information section on the document's page in the datatracker. * Added the result of the xym extaction to the yang check results, to make extration failures visible. * Added the version of the used xym, pyang, and yanglint commands to the check results. * Added an action to move successfully extracted and validated modules to the module library directories immediately on submission. * Added the xym repository as an svn:external component, rather than listing it in requirements.txt, as there has been delays of many months between essential features appearing in the repository, and an actual release of same. We may get occasional buildbot failures if broken code is pulled in from the repository, but better that than the functionality failure of severely outdated componets. * Added a new management command to re-run yang validation for active drafts for which yang modules were found at submission time, in order to pick up imported models which may have arrived in the model libraries after the draft's submission. Run daily from bin/daily. * Added a table to hold version information for external commands. The yang checker output should include the version information of the used checkers, but seems unnecessary to run each command with its --version switch every time we check a module... * Added a new management command to collect version information for external commands on demand. To be run daily from bin/daily. * Added tests to verify that xym, pyang and yanglint information is available on the submission confirmation page, and updated the yang module contained in the test document to validate under both pyang and yanglint. * Updated admin.py and resource.py files as needed. -- Henrik Levkowetz 16 Jun 2017 09:15:22 +0000 The new version is available for installation through SVN checkout, with 'svn checkout https://svn.tools.ietf.org/svn/tools/ietfdb/tags/6.55.0' For development, copy the new development version instead: 'svn copy https://svn.tools.ietf.org/svn/tools/ietfdb/tags/dev/6.55.1.dev0' Regards, Henrik (via the mkrelease script) . --------------EDDF964F9B1C52A2620AFADC Content-Type: multipart/related; boundary="------------E551C56C7D77B73F699BC083" --------------E551C56C7D77B73F699BC083 Content-Type: text/html; charset=windows-1252 Content-Transfer-Encoding: 7bit Dear all,

Great YANG-related addition to the tracker, thanks to Henrik.

For the development mode tracker



New datatracker release: v6.55.0 will be installed shortly.

Regards, Benoit


-------- Forwarded Message --------
Subject: New datatracker release: v6.55.0
Date: Fri, 16 Jun 2017 02:38:52 -0700
From: Henrik Levkowetz <henrik@levkowetz.com>
To: codesprints@ietf.org, iesg@ietf.org, wgchairs@ietf.org 


Hi,

This is an automatic notification about a new datatracker release, 
v6.55.0, generated when running the mkrelease script.

Release notes:

ietfdb (6.55.0) ietf; urgency=medium

  **Improved Yang validation support**

  This release updates and expands the Yang support in the datatracker.  In
  addition to checking yang modules in submitted drafts using pyang, it now
  also does a yanglint check.  The yang validation results are available by
  clicking on the red or green yin/yang symbols which show for drafts that
  contain yang models.

  For drafts where one or more models were found at submission time, the pyang
  and yanglint checks are re-run once per day, to catch newly arrived models
  in the library directories (both rfc and draft models).

  Additional details, from the commit log:

  * Added a new yang checker, 'yanglint', to the existing Yang checker class,
    in addition to the existing 'pyang' checker.

  * Added modal overlay displays showing the yang check results every place
    the yin/yang symbol is shown (red or green) to indicate the presencee and
    result of yang checks.  Added a Yang Validation: line in the document
    meta-information section on the document's page in the datatracker.

  * Added the result of the xym extaction to the yang check results, to make
    extration failures visible.

  * Added the version of the used xym, pyang, and yanglint commands to the
    check results.

  * Added an action to move successfully extracted and validated modules to
    the module library directories immediately on submission.

  * Added the xym repository as an svn:external component, rather than listing
    it in requirements.txt, as there has been delays of many months between
    essential features appearing in the repository, and an actual release of
    same.  We may get occasional buildbot failures if broken code is pulled in
    from the repository, but better that than the functionality failure of
    severely outdated componets.

  * Added a new management command to re-run yang validation for active drafts
    for which yang modules were found at submission time, in order to pick up
    imported models which may have arrived in the model libraries after the
    draft's submission.  Run daily from bin/daily.

  * Added a table to hold version information for external commands.  The yang
    checker output should include the version information of the used
    checkers, but seems unnecessary to run each command with its --version
    switch every time we check a module...

  * Added a new management command to collect version information for external
    commands on demand.  To be run daily from bin/daily.

  * Added tests to verify that xym, pyang and yanglint information is
    available on the submission confirmation page, and updated the yang module
    contained in the test document to validate under both pyang and yanglint.

  * Updated admin.py and resource.py files as needed.

 -- Henrik Levkowetz <henrik@levkowetz.com>  16 Jun 2017 09:15:22 +0000

The new version is available for installation through SVN checkout, with
  'svn checkout https://svn.tools.ietf.org/svn/tools/ietfdb/tags/6.55.0'

For development, copy the new development version instead:
  'svn copy https://svn.tools.ietf.org/svn/tools/ietfdb/tags/dev/6.55.1.dev0' <YOURBRANCH>

Regards,

	Henrik
	(via the mkrelease script)

.
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dMXF38YDZuuj+PiUroiPu+5UA//27/lTwXTFKSCW96KpTqicauZcWJzmPJ5nLC6Lj+OZv7DD dXSlX46Pl9vjkvh4XDihdPr5g5N1Jufj45JrBAAA+Dma6oh7x8fCPYA3+RU3vFXwRhN2crvu Zr+QxzvVXu34bfzcXZCP46ni47SbbR5TzrUxDhV5ZxQfn9Ly+Pjxev6p3HW126LHj6z4I+Vi fPz31k6x8vxZWo+P6ezI6eQX98iOrv/zvhof55dhDAckz6d7xQR/Nyj87IZbzAQninpjIT4O 3ZJbxgEAAH6Y/wMbO64kxrNPkQAAAABJRU5ErkJggg== --------------E551C56C7D77B73F699BC083-- --------------EDDF964F9B1C52A2620AFADC-- From nobody Fri Jun 16 04:22:35 2017 Return-Path: X-Original-To: yang-doctors@ietfa.amsl.com Delivered-To: yang-doctors@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 1811912ECA3 for ; Fri, 16 Jun 2017 04:22:33 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -14.522 X-Spam-Level: X-Spam-Status: No, score=-14.522 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_HI=-5, RCVD_IN_MSPIKE_H3=-0.01, 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xch-aln-004.cisco.com (173.36.7.14) by XCH-RCD-003.cisco.com (173.37.102.13) with Microsoft SMTP Server (TLS) id 15.0.1210.3; Fri, 16 Jun 2017 06:22:28 -0500 Received: from xch-aln-004.cisco.com ([173.36.7.14]) by XCH-ALN-004.cisco.com ([173.36.7.14]) with mapi id 15.00.1210.000; Fri, 16 Jun 2017 06:22:28 -0500 From: "Jan Lindblad (jlindbla)" To: YANG Doctors Thread-Topic: Early Review of draft-ietf-trill-yang-oam Thread-Index: AQHS5pLWqW/t4N07SEGZZYgPYSyeog== Date: Fri, 16 Jun 2017 11:22:28 +0000 Message-ID: <592F7E56-F9DF-4CF6-BA1E-9099FCC6AE33@cisco.com> References: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-messagesentrepresentingtype: 1 x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.147.40.74] Content-Type: multipart/alternative; boundary="_000_592F7E56F9DF4CF6BA1E9099FCC6AE33ciscocom_" MIME-Version: 1.0 Archived-At: Subject: [yang-doctors] Early Review of draft-ietf-trill-yang-oam X-BeenThere: yang-doctors@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: email list of the yang-doctors directorate List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 16 Jun 2017 11:22:33 -0000 --_000_592F7E56F9DF4CF6BA1E9099FCC6AE33ciscocom_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Reviewer: Jan Lindblad Review result: On the right track I have reviewed draft-ietf-trill-yang-oam-05, and in particular the YANG mo= del within it. Due to their coupling, I also got in contact with draft-ietf= -lime-yang-oam-model-10 and the YANG model defined there. The draft document and YANG module are easily read (nit: except when it com= es to the text layout; the YANG text is a bit garbled here and there). I no= te that there are no configuration/usage examples given, which I think make= s correct application of this document harder. #1) Module does not compile The augment path is missing a name in two places, which prevents it from be= ing properly compiled. yang/ietf-trill-oam.yang:279: error: cannot augment a case into the output = node 'output' yang/ietf-trill-oam.yang:312: error: cannot augment a case into the list no= de 'response' These errors are easily fixed: augment "/goam:continuity-verification/goam:output" { Should be: augment "/goam:continuity-verification/goam:output/goam:monitor-stats"= { And: augment "/goam:traceroute/goam:output/goam:response" { Should be: augment "/goam:traceroute/goam:output/goam:response/goam:monitor-stats= " { #2) Case missing leafs I suspect that one of the augments of a choice is meant to contribute one n= ew case with one uses and two leafs. As written now, it's actually contribu= ting three different cases. One with the uses, then two more cases which co= nsist of a single leaf each (that appear to make little sense in isolation)= . In case I'm right, this: case monitor-stats-resp { uses monitor-stats-trill; } leaf upstream-rbridge { type tril-rb-nickname; description "Trill Rbridge nickname."; } leaf-list next-hop-rbridge { type tril-rb-nickname; description "nickname of the next hop RBRdige"; } Should be: case monitor-stats-resp { uses monitor-stats-trill; leaf upstream-rbridge { type tril-rb-nickname; description "Trill Rbridge nickname."; } leaf-list next-hop-rbridge { type tril-rb-nickname; description "nickname of the next hop RBRdige"; } } // End case here instead #3) Bad when expression The when expression ensuring that mep-address is only configurable on trill= technology domains is likely not doing what the modeler had intended. The = original form expression looks like this: augment "/goam:domains/goam:domain/goam:MAs/goam:MA/goam:MEP/goam:mep-ad= dress" { case mep-address-trill { leaf mep-address-trill { when "/goam:domains/goam:domain/goam:technology=3D'trill'" { description "Technology TRILL"; This allows setting a mep-address-trill on ANY domain regardless of technol= ogy in that domain as soon as there exists at least one domain with technol= ogy trill. Probably not what was intended. If instead the mep-address-trill= should appear on the domains where technology trill have been configured, = the when expression needs to be: when "../../../../goam:technology=3D'trilloam:trill'" { In YANG 1.0, the XPATH string representation of identityrefs was not clearl= y defined, which has led to some interoperability issues in the field. In Y= ANG 1.1 this has been clarified so that the identityref should always inclu= de the namespace prefix (per above). In order to make identityref even more= interoperable and even allow "subclassing" (which was one of the original = intents with the YANG identity concept), the YANG modeling recommendation i= s to test identityrefs not using equality, but using the new YANG 1.1 XPATH= function derived-from-or-self. Like this: module ietf-trill-oam { yang-version 1.1; ... when "derived-from-or-self(../../../../goam:technology, 'trilloa= m:trill')" { This is what I recommend. #4) No defaults There is a single "default" statement in the entire module, and since all l= eafs are being augmented into a main module they are precluded from having = mandatory true. There are little in terms of explanations what it would mea= n when an optional leaf is not present in the configuration. In some cases = the reader might guess what it means, but in many cases at least I am unsur= e. E.g. what should the system do if a MEP has no mep-address-trill? I would suggest going through every leaf in the module and add to the descr= iption what it means if this leaf is not set. Alternatively, add a default = statement which explains the value the system would use if the operator doe= sn't say. #5) vlan type The module defines a VLAN type like this: typedef vlan { type uint16 { range "0..4095"; Other models defining VLAN types usually have a range of 1..4094. Is the ra= nge here the intended one? #6) flow-entropy-trill type In section 4.2 Flow Entropy the document says: In TRILL, flow-entropy is defined as a 96 octet field. [GENYANGOAM] In the YANG the following typedef is given: typedef flow-entropy-trill { type binary { length "1..96"; To me, the two definitions seem not to match up perfectly. The text says 96= bytes. The YANG says up to 96 bytes. Which one is right? #7) ietf-conn-oam This is not a review of the ietf-conn-oam YANG model, but since the current= module builds on that one, I could not help but notice that there are some= issues in the ietf-conn-oam module that I would recommend looking into bef= ore letting either model reach RFC status. Things I noticed while scanning = quickly: - When expressions with unqualified equality comparisions to identities are= not likely to be interoperable - The module has many leaf and container names with capitals. This goes aga= inst the IETF YANG modeling style guide. Fixing this would impact all augme= nting models, so sooner is better than later. Best Regards, /jan --_000_592F7E56F9DF4CF6BA1E9099FCC6AE33ciscocom_ Content-Type: text/html; charset="us-ascii" Content-ID: <3E7B5E76A524404491009AF499CB43F4@emea.cisco.com> Content-Transfer-Encoding: quoted-printable
= Reviewer: Jan Lindblad
= Review result: On the right track

= I have reviewed draft-ietf-trill-yang-oam-05, and in particular the YANG model w= ithin it. Due to their coupling, I also got in contact with draft-ietf-lime= -yang-oam-model-10 and the YANG model defined there.

The draft document and YANG module are easily read (nit: ex= cept when it comes to the text layout; the YANG text is a bit garbled here = and there). I note that there are no configuration/usage examples given, wh= ich I think makes correct application of this document harder.


#1) Module does not compile

The augment path is missing a name in two places, which pre= vents it from being properly compiled.

yang/ietf-trill-oam.yang:279: error: cannot augment a case = into the output node 'output'
yang/ietf-trill-oam.yang:312: error: cannot augment a case into the list no= de 'response'

These errors are easily fixed:
     augment "/goam:continuity-verifica= tion/goam:output" {

Should be:
     augment "/goam:continuity-verifica= tion/goam:output/goam:monitor-stats" {

And:
     augment "/goam:traceroute/goam:out= put/goam:response" {

Should be:
     augment "/goam:traceroute/goam:out= put/goam:response/goam:monitor-stats" {


#2) Case missing leafs

I suspect that one of the augments of a choice is meant to = contribute one new case with one uses and two leafs. As written now, it's a= ctually contributing three different cases. One with the uses, then two mor= e cases which consist of a single leaf each (that appear to make little sense in isolation). In case I'm rig= ht, this:

       case monitor-stats-resp {
         uses monitor-stats-trill;=
       }
       leaf upstream-rbridge {
         type tril-rb-nickname;
         description
           "Trill Rbridg= e nickname.";
       }
       leaf-list next-hop-rbridge {
         type tril-rb-nickname;
         description
           "nickname of = the next hop RBRdige";
       }

Should be:

       case monitor-stats-resp {
         uses monitor-stats-trill;=
         leaf upstream-rbridge {
           type tril-rb-nickn= ame;
           description
             "Trill= Rbridge nickname.";
         }
         leaf-list next-hop-rbridg= e {
           type tril-rb-nickn= ame;
           description
             "nickn= ame of the next hop RBRdige";
         }
       } // End case here= instead


#3) Bad when expression

The when expression ensuring that mep-address is only confi= gurable on trill technology domains is likely not doing what the modeler ha= d intended. The original form expression looks like this:

   augment "/goam:domains/goam:domain/goam:M= As/goam:MA/goam:MEP/goam:mep-address" {
       case mep-address-trill {
         leaf mep-address-trill {<= /div>
           when "/goam:d= omains/goam:domain/goam:technology=3D'trill'" {
             description=
              "Tech= nology TRILL";

This allows setting a mep-address-trill on ANY domain regar= dless of technology in that domain as soon as there exists at least one dom= ain with technology trill. Probably not what was intended. If instead the m= ep-address-trill should appear on the domains where technology trill have been configured, the when expressi= on needs to be:

           when= "../../../../goam:technology=3D'trilloam:trill'" {

In YANG 1.0, the XPATH string representation of identityref= s was not clearly defined, which has led to some interoperability issues in= the field. In YANG 1.1 this has been clarified so that the identityref sho= uld always include the namespace prefix (per above). In order to make identityref even more interoperable and even= allow "subclassing" (which was one of the original intents with = the YANG identity concept), the YANG modeling recommendation is to test ide= ntityrefs not using equality, but using the new YANG 1.1 XPATH function derived-from-or-self. Like this:

module ietf-trill-oam {
     yang-version 1.1;
...
           when= "derived-from-or-self(../../../../goam:technology, 'trilloam:trill')&= quot; {

This is what I recommend.


#4) No defaults

There is a single "default" statement in the enti= re module, and since all leafs are being augmented into a main module they = are precluded from having mandatory true. There are little in terms of expl= anations what it would mean when an optional leaf is not present in the configuration. In some cases the reader might g= uess what it means, but in many cases at least I am unsure.

E.g. what should the system do if a MEP has no mep-address-= trill?

I would suggest going through every leaf in the module and = add to the description what it means if this leaf is not set. Alternatively= , add a default statement which explains the value the system would use if = the operator doesn't say.


#5) vlan type

The module defines a VLAN type like this:

     typedef vlan {
       type uint16 {
         range "0..4095"= ;

Other models defining VLAN types usually have a range of 1.= .4094. Is the range here the intended one?


#6) flow-entropy-trill type

In section 4.2 Flow Entropy the document says:

   In TRILL, flow-entropy is defined as a 96 octe= t field. [GENYANGOAM]

In the YANG the following typedef is given:

     typedef flow-entropy-trill {
       type binary {
         length "1..96";=

To me, the two definitions seem not to match up perfectly. = The text says 96 bytes. The YANG says up to 96 bytes. Which one is right?


#7) ietf-conn-oam

This is not a review of the ietf-conn-oam YANG model, but s= ince the current module builds on that one, I could not help but notice tha= t there are some issues in the ietf-conn-oam module that I would recommend = looking into before letting either model reach RFC status. Things I noticed while scanning quickly:
- When expressions with unqualified equality comparisions t= o identities are not likely to be interoperable
- The module has many leaf and container names with capital= s. This goes against the IETF YANG modeling style guide. Fixing this would = impact all augmenting models, so sooner is better than later.

Best Regards,
/jan


--_000_592F7E56F9DF4CF6BA1E9099FCC6AE33ciscocom_-- From nobody Fri Jun 16 10:47:59 2017 Return-Path: X-Original-To: yang-doctors@ietfa.amsl.com Delivered-To: yang-doctors@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 8D8AA12957F; Fri, 16 Jun 2017 10:47:57 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.999 X-Spam-Level: X-Spam-Status: No, score=-1.999 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, FREEMAIL_FROM=0.001, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_PASS=-0.001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=gmail.com Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id mZ4frnQlKQi6; Fri, 16 Jun 2017 10:47:55 -0700 (PDT) Received: from mail-pg0-x231.google.com (mail-pg0-x231.google.com [IPv6:2607:f8b0:400e:c05::231]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 290F312945F; Fri, 16 Jun 2017 10:47:52 -0700 (PDT) Received: by mail-pg0-x231.google.com with SMTP id u62so4026168pgb.3; Fri, 16 Jun 2017 10:47:52 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:subject:from:in-reply-to:date:cc:message-id:references :to; bh=oFqv5tUvRFU58891l3K3mk0dfb/veA3P7Bq6r5Cx0Wg=; b=c/AeMEEivURcIKxQ6RbBtAPISqM6ft2cAwO+JPzEvhN+zq/xf1A6nNZcf6DvG5FR0d V0el8OiXQqN+pT2U8znUl1dEh+s474PijjubBCIdtlKD54EAogDM8kiJiLbEp7B5I326 AGGdjm3rzrqOEAZolvtYzw929BaWLBcw4Ij3L0j8R7wcH0uLgQXyFlb8NSyctE30qaov 9VP6ACYUZiXXU7Vai1UMDcrJVqr0HZgzXEek4g0CpIJU9UfHmKIioBiuoj5cpVeA3T+Y 4ala/jVupojaDkaC1xRRdIbOuBkrVMtDjMqBmOd/jUs9OB4OjwBEt6zrNZ1YNviLMucP GkNw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:subject:from:in-reply-to:date:cc :message-id:references:to; bh=oFqv5tUvRFU58891l3K3mk0dfb/veA3P7Bq6r5Cx0Wg=; b=fheSJ14R4xZ88EvH6AW2e7XtYVLURkttOiHrYVb7XAY28+kYnaJQgTZcHYtSwL75bF RneGM2HWzcBpsSJXDEgOdJYLWR9hc/hWiDc2a5LObuJzvZw5hfIrfD3/9/NBfAEEVtJQ 6d6G8v3gIMXLGzUJs+q0ysSyN3ongc1taHkrxp2o7iAXEIin1k3TbPtyxMncSNh5riqE gPERkLt6RL/V7PRLCWsPhwTJhiMOCkIXv+y5cSunwhXHXsUS9ouFzUBrLlGZVtWt7hNt Ra/+rmBSh2N/7hur0egobnB7sv1GZBZM2xNTJLQj17r/bi8KfdZ2qbM9MMIuzIaTi85/ GT1Q== X-Gm-Message-State: AKS2vOyBdUg+ff+qqPtfTwUoRDGHTGoTHWCFgzftop6ObqMNV/Xl2j0u GCVH/G/VgK/RWLPsOtg= X-Received: by 10.84.237.2 with SMTP id s2mr14060210plk.176.1497635271462; Fri, 16 Jun 2017 10:47:51 -0700 (PDT) Received: from ?IPv6:2001:420:c0c8:1005::261? ([2001:420:c0c8:1005::261]) by smtp.gmail.com with ESMTPSA id c4sm6342012pfg.31.2017.06.16.10.47.50 (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Fri, 16 Jun 2017 10:47:50 -0700 (PDT) Content-Type: multipart/alternative; boundary="Apple-Mail=_140AFC37-0B78-4743-8FAF-10583AC32E9B" Mime-Version: 1.0 (Mac OS X Mail 9.3 \(3124\)) From: Mahesh Jethanandani In-Reply-To: <592F7E56-F9DF-4CF6-BA1E-9099FCC6AE33@cisco.com> Date: Fri, 16 Jun 2017 10:47:49 -0700 Cc: YANG Doctors , Jan Lindblad Message-Id: References: <592F7E56-F9DF-4CF6-BA1E-9099FCC6AE33@cisco.com> To: draft-ietf-trill-yang-oam@ietf.org X-Mailer: Apple Mail (2.3124) Archived-At: Subject: Re: [yang-doctors] Early Review of draft-ietf-trill-yang-oam X-BeenThere: yang-doctors@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: email list of the yang-doctors directorate List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 16 Jun 2017 17:47:58 -0000 --Apple-Mail=_140AFC37-0B78-4743-8FAF-10583AC32E9B Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii [Adding the editors of draft-ietf-trill-yang-oam] And a comment below. > On Jun 16, 2017, at 4:22 AM, Jan Lindblad (jlindbla) = wrote: >=20 > Reviewer: Jan Lindblad > Review result: On the right track >=20 > I have reviewed draft-ietf-trill-yang-oam-05, and in particular the = YANG model within it. Due to their coupling, I also got in contact with = draft-ietf-lime-yang-oam-model-10 and the YANG model defined there. >=20 > The draft document and YANG module are easily read (nit: except when = it comes to the text layout; the YANG text is a bit garbled here and = there). I note that there are no configuration/usage examples given, = which I think makes correct application of this document harder. >=20 >=20 > #1) Module does not compile >=20 > The augment path is missing a name in two places, which prevents it = from being properly compiled. >=20 > yang/ietf-trill-oam.yang:279: error: cannot augment a case into the = output node 'output' > yang/ietf-trill-oam.yang:312: error: cannot augment a case into the = list node 'response' >=20 > These errors are easily fixed: > augment "/goam:continuity-verification/goam:output" { >=20 > Should be: > augment = "/goam:continuity-verification/goam:output/goam:monitor-stats" { >=20 > And: > augment "/goam:traceroute/goam:output/goam:response" { >=20 > Should be: > augment = "/goam:traceroute/goam:output/goam:response/goam:monitor-stats" { >=20 >=20 > #2) Case missing leafs >=20 > I suspect that one of the augments of a choice is meant to contribute = one new case with one uses and two leafs. As written now, it's actually = contributing three different cases. One with the uses, then two more = cases which consist of a single leaf each (that appear to make little = sense in isolation). In case I'm right, this: >=20 > case monitor-stats-resp { > uses monitor-stats-trill; > } > leaf upstream-rbridge { > type tril-rb-nickname; > description > "Trill Rbridge nickname."; > } > leaf-list next-hop-rbridge { > type tril-rb-nickname; > description > "nickname of the next hop RBRdige"; > } >=20 > Should be: >=20 > case monitor-stats-resp { > uses monitor-stats-trill; > leaf upstream-rbridge { > type tril-rb-nickname; > description > "Trill Rbridge nickname."; > } > leaf-list next-hop-rbridge { > type tril-rb-nickname; > description > "nickname of the next hop RBRdige"; > } > } // End case here instead >=20 >=20 > #3) Bad when expression >=20 > The when expression ensuring that mep-address is only configurable on = trill technology domains is likely not doing what the modeler had = intended. The original form expression looks like this: >=20 > augment = "/goam:domains/goam:domain/goam:MAs/goam:MA/goam:MEP/goam:mep-address" { > case mep-address-trill { > leaf mep-address-trill { > when "/goam:domains/goam:domain/goam:technology=3D'trill'" = { > description > "Technology TRILL"; >=20 > This allows setting a mep-address-trill on ANY domain regardless of = technology in that domain as soon as there exists at least one domain = with technology trill. Probably not what was intended. If instead the = mep-address-trill should appear on the domains where technology trill = have been configured, the when expression needs to be: >=20 > when "../../../../goam:technology=3D'trilloam:trill'" { >=20 > In YANG 1.0, the XPATH string representation of identityrefs was not = clearly defined, which has led to some interoperability issues in the = field. In YANG 1.1 this has been clarified so that the identityref = should always include the namespace prefix (per above). In order to make = identityref even more interoperable and even allow "subclassing" (which = was one of the original intents with the YANG identity concept), the = YANG modeling recommendation is to test identityrefs not using equality, = but using the new YANG 1.1 XPATH function derived-from-or-self. Like = this: >=20 > module ietf-trill-oam { > yang-version 1.1; > ... > when "derived-from-or-self(../../../../goam:technology, = 'trilloam:trill')" { >=20 > This is what I recommend. >=20 >=20 > #4) No defaults >=20 > There is a single "default" statement in the entire module, and since = all leafs are being augmented into a main module they are precluded from = having mandatory true. There are little in terms of explanations what it = would mean when an optional leaf is not present in the configuration. In = some cases the reader might guess what it means, but in many cases at = least I am unsure. >=20 > E.g. what should the system do if a MEP has no mep-address-trill? >=20 > I would suggest going through every leaf in the module and add to the = description what it means if this leaf is not set. Alternatively, add a = default statement which explains the value the system would use if the = operator doesn't say. >=20 >=20 > #5) vlan type >=20 > The module defines a VLAN type like this: >=20 > typedef vlan { > type uint16 { > range "0..4095"; >=20 > Other models defining VLAN types usually have a range of 1..4094. Is = the range here the intended one? In addition, there is no reason to redefine vlan-id, when it has already = been defined in ieee802-types.yang = typedef vlanid { type uint16 { range "1..4094"; } description "The vlanid type uniquely identifies a VLAN. This is the 12-bit VLAN-ID used in the VLAN Tag header. The range is defined by the referenced specification. This type is in the value set and its semantics equivalent to the VlanId textual convention of the SMIv2."; reference "IEEE Std 802.1Q-2014: Virtual Bridged Local Area Networks."; } >=20 >=20 > #6) flow-entropy-trill type >=20 > In section 4.2 Flow Entropy the document says: >=20 > In TRILL, flow-entropy is defined as a 96 octet field. [GENYANGOAM] >=20 > In the YANG the following typedef is given: >=20 > typedef flow-entropy-trill { > type binary { > length "1..96"; >=20 > To me, the two definitions seem not to match up perfectly. The text = says 96 bytes. The YANG says up to 96 bytes. Which one is right? >=20 >=20 > #7) ietf-conn-oam >=20 > This is not a review of the ietf-conn-oam YANG model, but since the = current module builds on that one, I could not help but notice that = there are some issues in the ietf-conn-oam module that I would recommend = looking into before letting either model reach RFC status. Things I = noticed while scanning quickly: > - When expressions with unqualified equality comparisions to = identities are not likely to be interoperable > - The module has many leaf and container names with capitals. This = goes against the IETF YANG modeling style guide. Fixing this would = impact all augmenting models, so sooner is better than later. >=20 > Best Regards, > /jan >=20 >=20 > _______________________________________________ > yang-doctors mailing list > yang-doctors@ietf.org > https://www.ietf.org/mailman/listinfo/yang-doctors Mahesh Jethanandani mjethanandani@gmail.com --Apple-Mail=_140AFC37-0B78-4743-8FAF-10583AC32E9B Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=us-ascii [Adding the editors of draft-ietf-trill-yang-oam]

And a comment below.

On Jun 16, 2017, at 4:22 AM, Jan Lindblad = (jlindbla) <jlindbla@cisco.com> wrote:

Reviewer: Jan Lindblad
Review result: On the right track

I have reviewed draft-ietf-trill-yang-oam-05, and = in particular the YANG = model within it. Due to their coupling, I also got in contact with = draft-ietf-lime-yang-oam-model-10 and the YANG model defined = there.

The draft document and YANG module are easily read (nit: = except when it comes to the text layout; the YANG text is a bit garbled = here and there). I note that there are no configuration/usage examples = given, which I think makes correct application of this document harder.


#1) Module does not compile

The augment path is missing a name in two places, which = prevents it from being properly compiled.

yang/ietf-trill-oam.yang:279: error: cannot augment a = case into the output node 'output'
yang/ietf-trill-oam.yang:312: error: cannot augment a case into the list = node 'response'

These errors are easily fixed:
     augment = "/goam:continuity-verification/goam:output" {

Should be:
     augment = "/goam:continuity-verification/goam:output/goam:monitor-stats" {

And:
     augment = "/goam:traceroute/goam:output/goam:response" {

Should be:
     augment = "/goam:traceroute/goam:output/goam:response/goam:monitor-stats" {


#2) Case missing leafs

I suspect that one of the augments of a choice is meant = to contribute one new case with one uses and two leafs. As written now, = it's actually contributing three different cases. One with the uses, = then two more cases which consist of a single leaf each (that appear to make little sense in isolation). In case I'm = right, this:

       case monitor-stats-resp = {
         uses = monitor-stats-trill;
       }
       leaf upstream-rbridge {
         type = tril-rb-nickname;
         description
           "Trill Rbridge = nickname.";
       }
       leaf-list next-hop-rbridge = {
         type = tril-rb-nickname;
         description
           "nickname of = the next hop RBRdige";
       }

Should be:

       case monitor-stats-resp = {
         uses = monitor-stats-trill;
         leaf upstream-rbridge = {
           type = tril-rb-nickname;
          =  description
             "Trill = Rbridge nickname.";
         }
         leaf-list = next-hop-rbridge {
           type = tril-rb-nickname;
          =  description
            =  "nickname of the next hop RBRdige";
         }
       } // End case = here instead


#3) Bad when expression

The when expression ensuring that mep-address is only = configurable on trill technology domains is likely not doing what the = modeler had intended. The original form expression looks like = this:

   augment = "/goam:domains/goam:domain/goam:MAs/goam:MA/goam:MEP/goam:mep-address" = {
       case mep-address-trill = {
         leaf mep-address-trill = {
           when = "/goam:domains/goam:domain/goam:technology=3D'trill'" {
            =  description
              = "Technology TRILL";

This allows setting a mep-address-trill on ANY domain = regardless of technology in that domain as soon as there exists at least = one domain with technology trill. Probably not what was intended. If = instead the mep-address-trill should appear on the domains where technology trill have been configured, the when = expression needs to be:

          =  when "../../../../goam:technology=3D'trilloam:trill'" {

In YANG 1.0, the XPATH string representation of = identityrefs was not clearly defined, which has led to some = interoperability issues in the field. In YANG 1.1 this has been = clarified so that the identityref should always include the namespace = prefix (per above). In order to make identityref even more interoperable and = even allow "subclassing" (which was one of the original intents with the = YANG identity concept), the YANG modeling recommendation is to test = identityrefs not using equality, but using the new YANG 1.1 XPATH function derived-from-or-self. Like this:

module ietf-trill-oam {
     yang-version = 1.1;
...
          =  when "derived-from-or-self(../../../../goam:technology, = 'trilloam:trill')" {

This is what I recommend.


#4) No defaults

There is a single "default" statement in the entire = module, and since all leafs are being augmented into a main module they = are precluded from having mandatory true. There are little in terms of = explanations what it would mean when an optional leaf is not present in the configuration. In some cases the reader = might guess what it means, but in many cases at least I am unsure.

E.g. what should the system do if a MEP has no = mep-address-trill?

I would suggest going through every leaf in the module = and add to the description what it means if this leaf is not set. = Alternatively, add a default statement which explains the value the = system would use if the operator doesn't say.


#5) vlan type

The module defines a VLAN type like this:

     typedef vlan {
       type uint16 {
         range "0..4095";

Other models defining VLAN types usually have a range of = 1..4094. Is the range here the intended = one?

In addition, there is no reason to redefine vlan-id, = when it has already been defined in ieee802-types.yang

typedef vlanid {
type uint16 = {
range "1..4094";
}
description
"The vlanid type uniquely identifies = a VLAN. This is the 12-bit
VLAN-ID used in the VLAN Tag header. The = range is defined by
the referenced specification. This type is = in the value set and
its semantics equivalent to the VlanId = textual convention of
the SMIv2.";
reference
"IEEE Std 802.1Q-2014: Virtual = Bridged Local Area Networks.";
}



#6) flow-entropy-trill type

In section 4.2 Flow Entropy the document says:

   In TRILL, flow-entropy is defined as a 96 = octet field. [GENYANGOAM]

In the YANG the following typedef is given:

     typedef flow-entropy-trill {
       type binary {
         length "1..96";

To me, the two definitions seem not to match up = perfectly. The text says 96 bytes. The YANG says up to 96 bytes. Which = one is right?


#7) ietf-conn-oam

This is not a review of the ietf-conn-oam YANG model, = but since the current module builds on that one, I could not help but = notice that there are some issues in the ietf-conn-oam module that I = would recommend looking into before letting either model reach RFC status. Things I noticed while scanning quickly:
- When expressions with unqualified equality = comparisions to identities are not likely to be interoperable
- The module has many leaf and container names with = capitals. This goes against the IETF YANG modeling style guide. Fixing = this would impact all augmenting models, so sooner is better than = later.

Best Regards,
/jan


_______________________________________________
yang-doctors= mailing list
yang-doctors@ietf.org
https://www.ietf.org/mailman/listinfo/yang-doctors

Mahesh Jethanandani
mjethanandani@gmail.com



= --Apple-Mail=_140AFC37-0B78-4743-8FAF-10583AC32E9B-- From nobody Tue Jun 20 09:26:18 2017 Return-Path: X-Original-To: yang-doctors@ietfa.amsl.com Delivered-To: yang-doctors@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id D78AE1289B0 for ; Tue, 20 Jun 2017 09:26:16 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -14.503 X-Spam-Level: X-Spam-Status: No, score=-14.503 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_HI=-5, RP_MATCHES_RCVD=-0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, USER_IN_DEF_DKIM_WL=-7.5] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=cisco.com Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id B4jP5UMvlE-2 for ; Tue, 20 Jun 2017 09:26:15 -0700 (PDT) Received: from aer-iport-4.cisco.com (aer-iport-4.cisco.com [173.38.203.54]) (using TLSv1.2 with cipher DHE-RSA-SEED-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 1FBDF129418 for ; Tue, 20 Jun 2017 09:26:14 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=@cisco.com; l=17; q=dns/txt; s=iport; t=1497975975; x=1499185575; h=to:from:subject:message-id:date:mime-version: content-transfer-encoding; bh=/arwFErP0t6d5869rZT3o0Px8DsJ6PsqfbDRb8UlZTk=; b=kajD/aba4u+MTFaPL8psF/vfNuXJnYDOZSKaveAZlMOgokYbZm6B2fuR Vx7qncWXQMqb56MQnM/Zk6s1U2KeGG3THcE+KZ7SFJhOBA6x1jFGgjOwb MlCLaFvg7sK2xWJ99DgZwUQ7g4vAS+blAIgNEr8cxWoDFGAxVvbjk0Yxk U=; X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: =?us-ascii?q?A0B0AwDDS0lZ/xbLJq1dGgEBAQECAQEBA?= =?us-ascii?q?QgBAQEBiTKLDJBqmBkShhsBAwODLRQBAgEBAQEBAQFrKIU4ChV2AiYCXw0IAQG?= =?us-ascii?q?KKKwKgiaLWQEBCAImgQuFYYILC4ppgkIfAQSeYZNigXABiSqGc4xGiEc2IYEKM?= =?us-ascii?q?CEIGxWHWj6KDwEBAQ?= X-IronPort-AV: E=Sophos;i="5.39,364,1493683200"; d="scan'208";a="655561753" Received: from aer-iport-nat.cisco.com (HELO aer-core-1.cisco.com) ([173.38.203.22]) by aer-iport-4.cisco.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 20 Jun 2017 16:26:11 +0000 Received: from [10.55.221.38] (ams-bclaise-nitro5.cisco.com [10.55.221.38]) by aer-core-1.cisco.com (8.14.5/8.14.5) with ESMTP id v5KGQArm028583 for ; Tue, 20 Jun 2017 16:26:11 GMT To: YANG Doctors From: Benoit Claise Message-ID: <90f1c2cb-8c53-f981-0430-94dc1fa21e56@cisco.com> Date: Tue, 20 Jun 2017 18:26:12 +0200 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.2.0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Content-Language: en-US Archived-At: Subject: [yang-doctors] Do we need a YANG doctor lunch meeting at the IETF meeting? X-BeenThere: yang-doctors@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: email list of the yang-doctors directorate List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 20 Jun 2017 16:26:17 -0000 Regards, Benoit From nobody Tue Jun 20 10:32:46 2017 Return-Path: X-Original-To: yang-doctors@ietfa.amsl.com Delivered-To: yang-doctors@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id C88531315A4 for ; Tue, 20 Jun 2017 10:32:44 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2 X-Spam-Level: X-Spam-Status: No, score=-2 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_PASS=-0.001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=gmail.com Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id zkoijCu_VyhH for ; Tue, 20 Jun 2017 10:32:42 -0700 (PDT) Received: from mail-pf0-x232.google.com (mail-pf0-x232.google.com [IPv6:2607:f8b0:400e:c00::232]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 51CD613155E for ; Tue, 20 Jun 2017 10:32:39 -0700 (PDT) Received: by mail-pf0-x232.google.com with SMTP id s66so72405753pfs.1 for ; Tue, 20 Jun 2017 10:32:39 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=vnoGH+BoLZSO+3mPfVhRaZ26Y2wNL05L5U5wada9mIg=; b=tR0PLC0MzNDfRhHsOraFj8CKYhXk6VTTdLGo+VloBI7x5Pu8Wsg2O2iNeRGBLCVtBH DwENdS4eUq8R+x32BxiSe82bHt3krKMy/Y6i153SqldvVJyTnzMZd7UZL1koQiUhViE8 U35GKvDKjHwgv24FfbTJPZxsO0dfso58TkL+PUU6p9gFE5ZvvERmw98M19D4qnMCT5Pl SAV0PkleQZAaYazYXN06kJHB4CCLFHpzc8huHUiHnNKOnHuFn6agxcR1dQdrHkp8qTH4 +HMET6OYrWqolrOVsxSLW/PmnuJ8c4sQZ82SmM6QbaZsFrR9Zej2u3xha9ARVCD6S2D0 tvAg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=vnoGH+BoLZSO+3mPfVhRaZ26Y2wNL05L5U5wada9mIg=; b=HCzNpMenNXqNggD2JIyk4eZaV55nT8iVcB5QYT5waH6BeY+a094GuU+8zr083ER4ld AsPgddDvdI4dOuaeO6i+qD/0pLJ6PlDH/SeuO7tt0YmdfmzqFcZaMIdAOTh7wSCu+OAQ pqWnFzpSqk+g5k/Aez+uHoFuSefz+d75+S76D7LT0VE1BaicoD2ernoe3XDY55OkwEf8 TdjFUUkuGYqvuJpYAqsgU70y9XF32Z9tPzkQcaILFJobf6uv1BA5f6X+qB01mz/6dwle SwdYgUvK9FgFDCaE/55r2GOJNKEictEmHcGYufLu5ucNwztYU0Zt6Y0KntjWzvVBXNft 4vtQ== X-Gm-Message-State: AKS2vOzhlYCkkypTubK1Vxl/A3XRDCX6lNF3UraHPQjnXd3s5wEs41Tw /Of6ItSCA/3MpA== X-Received: by 10.84.231.15 with SMTP id f15mr37588686plk.131.1497979958834; Tue, 20 Jun 2017 10:32:38 -0700 (PDT) Received: from sjc-mahesh-nitro7.cisco.com ([128.107.241.181]) by smtp.gmail.com with ESMTPSA id e2sm29680360pfg.36.2017.06.20.10.32.36 (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Tue, 20 Jun 2017 10:32:37 -0700 (PDT) Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Mac OS X Mail 9.3 \(3124\)) From: Mahesh Jethanandani In-Reply-To: <90f1c2cb-8c53-f981-0430-94dc1fa21e56@cisco.com> Date: Tue, 20 Jun 2017 10:32:35 -0700 Cc: YANG Doctors Content-Transfer-Encoding: quoted-printable Message-Id: References: <90f1c2cb-8c53-f981-0430-94dc1fa21e56@cisco.com> To: Benoit Claise X-Mailer: Apple Mail (2.3124) Archived-At: Subject: Re: [yang-doctors] Do we need a YANG doctor lunch meeting at the IETF meeting? X-BeenThere: yang-doctors@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: email list of the yang-doctors directorate List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 20 Jun 2017 17:32:45 -0000 I would like to have a discussion around what advise we are giving to = folks on the new NMDA architecture, and bring up any issues that folks = are seeing as they move their models to the new architecture. > On Jun 20, 2017, at 9:26 AM, Benoit Claise wrote: >=20 > Regards, Benoit >=20 > _______________________________________________ > yang-doctors mailing list > yang-doctors@ietf.org > https://www.ietf.org/mailman/listinfo/yang-doctors Mahesh Jethanandani mjethanandani@gmail.com From nobody Tue Jun 20 12:43:12 2017 Return-Path: X-Original-To: yang-doctors@ietfa.amsl.com Delivered-To: yang-doctors@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id A7B5813161D for ; Tue, 20 Jun 2017 12:43:11 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -14.503 X-Spam-Level: X-Spam-Status: No, score=-14.503 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_HI=-5, RP_MATCHES_RCVD=-0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, USER_IN_DEF_DKIM_WL=-7.5] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=cisco.com Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id huT2ohI5Fjzm for ; Tue, 20 Jun 2017 12:43:10 -0700 (PDT) Received: from aer-iport-1.cisco.com (aer-iport-1.cisco.com [173.38.203.51]) (using TLSv1.2 with cipher DHE-RSA-SEED-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 88A09131618 for ; Tue, 20 Jun 2017 12:43:09 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=@cisco.com; l=603; q=dns/txt; s=iport; t=1497987789; x=1499197389; h=subject:to:cc:references:from:message-id:date: mime-version:in-reply-to:content-transfer-encoding; bh=VHoYyme/BrPtGkjXaeKAdLeBqYOZxC8YHphTq+5r5Nc=; b=lf9u+qAVUh2ukf/KXvRAWCTQZZpiddxHFghzccz6lrGPRwFdlC9wmlKA 6UO70wSQ5YPPp00J0+Qsl+/LLWt0M6NaVX8X4XvJXNrrQlPtNPeeCoiVC 7FTsFoZcveDSdja5gqZeL0WiG/tekWpLLBNWI2Gruzv0nnla++g+1mdi5 Y=; X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: =?us-ascii?q?A0BuAgBMeUlZ/xbLJq1dGQEBAQEBAQEBA?= =?us-ascii?q?QEBBwEBAQEBhDqBDYNsiwyQaiKILI1MghEhC4V4AoMoFgECAQEBAQEBAWsohRk?= =?us-ascii?q?BAQEDAQEhFTYLEAsOBAYCAiYCAiEGIg4GDQYCAQGKEAMVEKtvgiaHOg2EFgEBA?= =?us-ascii?q?QEBAQEBAQEBAQEBAQEBAQEaBYELhWGBYCsLgm6CV4UkgkIfAQSeJjuOe4RngXC?= =?us-ascii?q?JK4Zzi1psiEclATGBCjAhCBsVSYcRPjaJWQEBAQ?= X-IronPort-AV: E=Sophos;i="5.39,364,1493683200"; d="scan'208";a="695288699" Received: from aer-iport-nat.cisco.com (HELO aer-core-3.cisco.com) ([173.38.203.22]) by aer-iport-1.cisco.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 20 Jun 2017 19:43:05 +0000 Received: from [10.55.221.38] (ams-bclaise-nitro5.cisco.com [10.55.221.38]) by aer-core-3.cisco.com (8.14.5/8.14.5) with ESMTP id v5KJh5nS017504; Tue, 20 Jun 2017 19:43:05 GMT To: Mahesh Jethanandani Cc: YANG Doctors References: <90f1c2cb-8c53-f981-0430-94dc1fa21e56@cisco.com> From: Benoit Claise Message-ID: <71e67fa4-102e-81da-7452-f8df66f8b391@cisco.com> Date: Tue, 20 Jun 2017 21:43:05 +0200 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.2.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Content-Language: en-US Archived-At: Subject: Re: [yang-doctors] Do we need a YANG doctor lunch meeting at the IETF meeting? X-BeenThere: yang-doctors@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: email list of the yang-doctors directorate List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 20 Jun 2017 19:43:12 -0000 Ok. A room has been booked for Tuesday lunch break. Regards, B. > I would like to have a discussion around what advise we are giving to folks on the new NMDA architecture, and bring up any issues that folks are seeing as they move their models to the new architecture. > >> On Jun 20, 2017, at 9:26 AM, Benoit Claise wrote: >> >> Regards, Benoit >> >> _______________________________________________ >> yang-doctors mailing list >> yang-doctors@ietf.org >> https://www.ietf.org/mailman/listinfo/yang-doctors > Mahesh Jethanandani > mjethanandani@gmail.com > > . > From nobody Tue Jun 20 12:48:08 2017 Return-Path: X-Original-To: yang-doctors@ietfa.amsl.com Delivered-To: yang-doctors@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id BFF7F131624 for ; Tue, 20 Jun 2017 12:48:06 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.901 X-Spam-Level: X-Spam-Status: No, score=-1.901 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RP_MATCHES_RCVD=-0.001] autolearn=ham autolearn_force=no Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 2lqCIvRJm4th for ; Tue, 20 Jun 2017 12:48:05 -0700 (PDT) Received: from atlas5.jacobs-university.de (atlas5.jacobs-university.de [212.201.44.20]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 120D913161E for ; Tue, 20 Jun 2017 12:48:05 -0700 (PDT) Received: from localhost (demetrius5.irc-it.jacobs-university.de [10.70.0.222]) by atlas5.jacobs-university.de (Postfix) with ESMTP id D01FAF6A; Tue, 20 Jun 2017 21:48:03 +0200 (CEST) X-Virus-Scanned: amavisd-new at jacobs-university.de Received: from atlas5.jacobs-university.de ([10.70.0.217]) by localhost (demetrius5.jacobs-university.de [10.70.0.222]) (amavisd-new, port 10032) with ESMTP id 4iOzgdlR6P3j; Tue, 20 Jun 2017 21:48:02 +0200 (CEST) Received: from hermes.jacobs-university.de (hermes.jacobs-university.de [212.201.44.23]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "hermes.jacobs-university.de", Issuer "Jacobs University CA - G01" (verified OK)) by atlas5.jacobs-university.de (Postfix) with ESMTPS; Tue, 20 Jun 2017 21:48:03 +0200 (CEST) Received: from localhost (demetrius1.jacobs-university.de [212.201.44.46]) by hermes.jacobs-university.de (Postfix) with ESMTP id AEB612009D; Tue, 20 Jun 2017 21:48:03 +0200 (CEST) X-Virus-Scanned: amavisd-new at jacobs-university.de Received: from hermes.jacobs-university.de ([212.201.44.23]) by localhost (demetrius1.jacobs-university.de [212.201.44.32]) (amavisd-new, port 10024) with ESMTP id AbpuJLfs155I; Tue, 20 Jun 2017 21:48:03 +0200 (CEST) Received: from elstar.local (elstar.jacobs.jacobs-university.de [10.50.231.133]) by hermes.jacobs-university.de (Postfix) with ESMTP id 481C02009F; Tue, 20 Jun 2017 21:48:03 +0200 (CEST) Received: by elstar.local (Postfix, from userid 501) id 37BC03FCB727; Tue, 20 Jun 2017 21:48:03 +0200 (CEST) Date: Tue, 20 Jun 2017 21:48:03 +0200 From: Juergen Schoenwaelder To: Mahesh Jethanandani Cc: Benoit Claise , YANG Doctors Message-ID: <20170620194803.GB2432@elstar.local> Reply-To: Juergen Schoenwaelder Mail-Followup-To: Mahesh Jethanandani , Benoit Claise , YANG Doctors References: <90f1c2cb-8c53-f981-0430-94dc1fa21e56@cisco.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.6.0 (2016-04-01) Archived-At: Subject: Re: [yang-doctors] Do we need a YANG doctor lunch meeting at the IETF meeting? X-BeenThere: yang-doctors@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: email list of the yang-doctors directorate List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 20 Jun 2017 19:48:07 -0000 I wonder whether we need a general informal 'NMDA Q&A' session that is open to everybody who is interested and where we briefly explain the current NMDA model and then answer any questions people may have. There are two NETMOD meetings (Mo afternoon and We afternoon). If NMDA WG discussions go into the second meeting, we could use say a Monday evening bar session (if someone sponsors beer even better - but not required). /js On Tue, Jun 20, 2017 at 10:32:35AM -0700, Mahesh Jethanandani wrote: > I would like to have a discussion around what advise we are giving to folks on the new NMDA architecture, and bring up any issues that folks are seeing as they move their models to the new architecture. > > > On Jun 20, 2017, at 9:26 AM, Benoit Claise wrote: > > > > Regards, Benoit > > > > _______________________________________________ > > yang-doctors mailing list > > yang-doctors@ietf.org > > https://www.ietf.org/mailman/listinfo/yang-doctors > > Mahesh Jethanandani > mjethanandani@gmail.com > > _______________________________________________ > yang-doctors mailing list > yang-doctors@ietf.org > https://www.ietf.org/mailman/listinfo/yang-doctors -- Juergen Schoenwaelder Jacobs University Bremen gGmbH Phone: +49 421 200 3587 Campus Ring 1 | 28759 Bremen | Germany Fax: +49 421 200 3103 From nobody Tue Jun 20 12:52:32 2017 Return-Path: X-Original-To: yang-doctors@ietfa.amsl.com Delivered-To: yang-doctors@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 7B79513160E for ; Tue, 20 Jun 2017 12:52:30 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -14.503 X-Spam-Level: X-Spam-Status: No, score=-14.503 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_HI=-5, RP_MATCHES_RCVD=-0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, USER_IN_DEF_DKIM_WL=-7.5] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=cisco.com Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id b7EozVqpUGa7 for ; Tue, 20 Jun 2017 12:52:29 -0700 (PDT) Received: from aer-iport-1.cisco.com (aer-iport-1.cisco.com [173.38.203.51]) (using TLSv1.2 with cipher DHE-RSA-SEED-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id B136312420B for ; Tue, 20 Jun 2017 12:52:28 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=@cisco.com; l=1354; q=dns/txt; s=iport; t=1497988348; x=1499197948; h=subject:to:references:from:message-id:date:mime-version: in-reply-to:content-transfer-encoding; bh=fI8sY6NGa/4BWSnJitlNjEvztsdEfwtZ6XU8RD4UwJg=; b=WS1UqD6zGBi4a4I3VHagcGIXBpuB8bnzbAXNx0VMH/MwY0yxEWvBLH38 KapmS6BRtLiulNp5ZIOD9vapKeX5n4D93QC9rBP/jXgVKPBOEPWdfyJW8 5Z74p1SRVGp9w/WXbyiw+cCF+XTEL66+TSDFRwMGnrJWkKanqcVu1ZEc+ g=; X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: =?us-ascii?q?A0BuAgCse0lZ/xbLJq1dGQEBAQEBAQEBA?= =?us-ascii?q?QEBBwEBAQEBhDqBDYNsiwyQaiKILI1MghEhC4V4AoMoFgECAQEBAQEBAWsohRk?= =?us-ascii?q?BAQEDAQEhFTYbCw4EBgICJgICIQYiDgYBDAYCAQGKEAMVEKtogiaHOg2EFgEBA?= =?us-ascii?q?QEBAQEBAQEBAQEBAQEBAQEBARgFgQuFYYFgKwuCboJXhSSCQh8BBJ4mO457hGe?= =?us-ascii?q?LG4Zzi1psiEcmAy6BCjAhCBsVSYcRPjaJWQEBAQ?= X-IronPort-AV: E=Sophos;i="5.39,364,1493683200"; d="scan'208";a="695288835" Received: from aer-iport-nat.cisco.com (HELO aer-core-3.cisco.com) ([173.38.203.22]) by aer-iport-1.cisco.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 20 Jun 2017 19:52:26 +0000 Received: from [10.55.221.38] (ams-bclaise-nitro5.cisco.com [10.55.221.38]) by aer-core-3.cisco.com (8.14.5/8.14.5) with ESMTP id v5KJqQxU019886; Tue, 20 Jun 2017 19:52:26 GMT To: Mahesh Jethanandani , YANG Doctors References: <90f1c2cb-8c53-f981-0430-94dc1fa21e56@cisco.com> <20170620194803.GB2432@elstar.local> From: Benoit Claise Message-ID: Date: Tue, 20 Jun 2017 21:52:27 +0200 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.2.0 MIME-Version: 1.0 In-Reply-To: <20170620194803.GB2432@elstar.local> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Content-Language: en-US Archived-At: Subject: Re: [yang-doctors] Do we need a YANG doctor lunch meeting at the IETF meeting? X-BeenThere: yang-doctors@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: email list of the yang-doctors directorate List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 20 Jun 2017 19:52:30 -0000 I like that. We use to have that kind of session on Sunday afternoon, part of the EDU effort. Regards, Benoit > I wonder whether we need a general informal 'NMDA Q&A' session that is > open to everybody who is interested and where we briefly explain the > current NMDA model and then answer any questions people may have. > > There are two NETMOD meetings (Mo afternoon and We afternoon). If NMDA > WG discussions go into the second meeting, we could use say a Monday > evening bar session (if someone sponsors beer even better - but not > required). > > /js > > On Tue, Jun 20, 2017 at 10:32:35AM -0700, Mahesh Jethanandani wrote: >> I would like to have a discussion around what advise we are giving to folks on the new NMDA architecture, and bring up any issues that folks are seeing as they move their models to the new architecture. >> >>> On Jun 20, 2017, at 9:26 AM, Benoit Claise wrote: >>> >>> Regards, Benoit >>> >>> _______________________________________________ >>> yang-doctors mailing list >>> yang-doctors@ietf.org >>> https://www.ietf.org/mailman/listinfo/yang-doctors >> Mahesh Jethanandani >> mjethanandani@gmail.com >> >> _______________________________________________ >> yang-doctors mailing list >> yang-doctors@ietf.org >> https://www.ietf.org/mailman/listinfo/yang-doctors From nobody Tue Jun 20 14:01:03 2017 Return-Path: X-Original-To: yang-doctors@ietfa.amsl.com Delivered-To: yang-doctors@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id E79801294DC for ; Tue, 20 Jun 2017 14:01:01 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.901 X-Spam-Level: X-Spam-Status: No, score=-1.901 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RP_MATCHES_RCVD=-0.001] autolearn=ham autolearn_force=no Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id SZiNJisTt47O for ; Tue, 20 Jun 2017 14:00:57 -0700 (PDT) Received: from atlas5.jacobs-university.de (atlas5.jacobs-university.de [212.201.44.20]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 17B541294EC for ; Tue, 20 Jun 2017 14:00:50 -0700 (PDT) Received: from localhost (demetrius5.irc-it.jacobs-university.de [10.70.0.222]) by atlas5.jacobs-university.de (Postfix) with ESMTP id D56E46CF; Tue, 20 Jun 2017 23:00:48 +0200 (CEST) X-Virus-Scanned: amavisd-new at jacobs-university.de Received: from atlas5.jacobs-university.de ([10.70.0.217]) by localhost (demetrius5.jacobs-university.de [10.70.0.222]) (amavisd-new, port 10032) with ESMTP id 31aJfxbS9Xde; Tue, 20 Jun 2017 23:00:47 +0200 (CEST) Received: from hermes.jacobs-university.de (hermes.jacobs-university.de [212.201.44.23]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "hermes.jacobs-university.de", Issuer "Jacobs University CA - G01" (verified OK)) by atlas5.jacobs-university.de (Postfix) with ESMTPS; Tue, 20 Jun 2017 23:00:48 +0200 (CEST) Received: from localhost (demetrius4.jacobs-university.de [212.201.44.49]) by hermes.jacobs-university.de (Postfix) with ESMTP id 8D8032009B; Tue, 20 Jun 2017 23:00:48 +0200 (CEST) X-Virus-Scanned: amavisd-new at jacobs-university.de Received: from hermes.jacobs-university.de ([212.201.44.23]) by localhost (demetrius4.jacobs-university.de [212.201.44.32]) (amavisd-new, port 10024) with ESMTP id 3JojXzon4XLO; Tue, 20 Jun 2017 23:00:48 +0200 (CEST) Received: from elstar.local (elstar.jacobs.jacobs-university.de [10.50.231.133]) by hermes.jacobs-university.de (Postfix) with ESMTP id E013F20091; Tue, 20 Jun 2017 23:00:47 +0200 (CEST) Received: by elstar.local (Postfix, from userid 501) id AFFF23FCB839; Tue, 20 Jun 2017 23:00:47 +0200 (CEST) Date: Tue, 20 Jun 2017 23:00:47 +0200 From: Juergen Schoenwaelder To: Benoit Claise Cc: Mahesh Jethanandani , YANG Doctors Message-ID: <20170620210047.GA2518@elstar.local> Reply-To: Juergen Schoenwaelder Mail-Followup-To: Benoit Claise , Mahesh Jethanandani , YANG Doctors References: <90f1c2cb-8c53-f981-0430-94dc1fa21e56@cisco.com> <20170620194803.GB2432@elstar.local> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.6.0 (2016-04-01) Archived-At: Subject: Re: [yang-doctors] Do we need a YANG doctor lunch meeting at the IETF meeting? X-BeenThere: yang-doctors@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: email list of the yang-doctors directorate List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 20 Jun 2017 21:01:02 -0000 I was thinking about something low overhead and informal and ideally as interactive as possible (few slides, more focus on questions and answers)... /js On Tue, Jun 20, 2017 at 09:52:27PM +0200, Benoit Claise wrote: > I like that. > We use to have that kind of session on Sunday afternoon, part of the EDU > effort. > > Regards, Benoit > > I wonder whether we need a general informal 'NMDA Q&A' session that is > > open to everybody who is interested and where we briefly explain the > > current NMDA model and then answer any questions people may have. > > > > There are two NETMOD meetings (Mo afternoon and We afternoon). If NMDA > > WG discussions go into the second meeting, we could use say a Monday > > evening bar session (if someone sponsors beer even better - but not > > required). > > > > /js > > > > On Tue, Jun 20, 2017 at 10:32:35AM -0700, Mahesh Jethanandani wrote: > > > I would like to have a discussion around what advise we are giving to folks on the new NMDA architecture, and bring up any issues that folks are seeing as they move their models to the new architecture. > > > > > > > On Jun 20, 2017, at 9:26 AM, Benoit Claise wrote: > > > > > > > > Regards, Benoit > > > > > > > > _______________________________________________ > > > > yang-doctors mailing list > > > > yang-doctors@ietf.org > > > > https://www.ietf.org/mailman/listinfo/yang-doctors > > > Mahesh Jethanandani > > > mjethanandani@gmail.com > > > > > > _______________________________________________ > > > yang-doctors mailing list > > > yang-doctors@ietf.org > > > https://www.ietf.org/mailman/listinfo/yang-doctors > > _______________________________________________ > yang-doctors mailing list > yang-doctors@ietf.org > https://www.ietf.org/mailman/listinfo/yang-doctors -- Juergen Schoenwaelder Jacobs University Bremen gGmbH Phone: +49 421 200 3587 Campus Ring 1 | 28759 Bremen | Germany Fax: +49 421 200 3103 From nobody Tue Jun 20 14:26:58 2017 Return-Path: X-Original-To: yang-doctors@ietfa.amsl.com Delivered-To: yang-doctors@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id D74051273B1 for ; Tue, 20 Jun 2017 14:26:55 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.9 X-Spam-Level: X-Spam-Status: No, score=-1.9 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_PASS=-0.001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=yumaworks-com.20150623.gappssmtp.com Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id ZAWg3OgDjVF2 for ; Tue, 20 Jun 2017 14:26:53 -0700 (PDT) Received: from mail-wr0-x22d.google.com (mail-wr0-x22d.google.com [IPv6:2a00:1450:400c:c0c::22d]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id C4AA31294E9 for ; Tue, 20 Jun 2017 14:26:52 -0700 (PDT) Received: by mail-wr0-x22d.google.com with SMTP id c11so52891627wrc.3 for ; Tue, 20 Jun 2017 14:26:52 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yumaworks-com.20150623.gappssmtp.com; s=20150623; h=mime-version:in-reply-to:references:from:date:message-id:subject:to; bh=0CzMr/qZzpsbLtSyuwGRmREN8IkaxBJAJ6M4kxEL2E0=; b=14yqDyz/rbr9tfqA2yxRsPAAkjFX+LkoMxBfZVK7I0fum+NZ7bay3tjvDA4g2VP9tf rrm6+U6UmeiJ1GkE227nbre0mQhsf8At2v7IUTGD2DdKHRNdpCZKY4d4XKHOR/ZpEbE0 ngL13UDltGNASUyN5sujiJ7gHdN+T/4UwgTqHKKpbue2rJxajBW276p1SfN1giCnJoXy E2RbRtTKQhJH5nDJIAMIaWS2eQ6xUxqe25A+yPB6og/j8lg/T9SB3tEIyFIwieRQPE3X 3NZRqCQg69yBK6iDUdpF+slW44KdwYSPKYOOHHfYa16HBbH+Efjys/HKNxKABICGYQct 5UsA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to; bh=0CzMr/qZzpsbLtSyuwGRmREN8IkaxBJAJ6M4kxEL2E0=; b=GzqPAUWwrsXojYhE3/zOugKwPyRtH+bbsc75O8t3fRziWpZQuaSGU4Qjl+3Z7Xy0i4 YyEwJzJZDVX9V7UZfnHviCkXH6LUIZ2wi7OvpLL5NBpFAI5tMBQ4Vzkb2WZcc+JzeobO p7TEq+3OmKiJn3inBHfFh3SNNK8rPDXxeRC/Fq2i5WjhJ4KdpQtuaMhwcWBHdJu38z8V dLAy8w5eRxjb5a1JswCkgji/JPuTmSCEQ5ITAhn1XD3oYVgA1fcjyBZ/LJJTWPT+vS8T N0rDNqAllaGednH64r7eVvGNnuqZfTZhhNYw3GbYA3TwsxXMTSILtKr3adiPftEld1Sb 9RwQ== X-Gm-Message-State: AKS2vOyS9Jm/J0lAgxxdhX0ZVdcPCHSoIGuHjiC3dVCB4vrvHN9rAQho ohgP1kb+b4+Nv8yDozHoNjeCMbvZBFRq X-Received: by 10.223.163.135 with SMTP id l7mr13685880wrb.88.1497994011213; Tue, 20 Jun 2017 14:26:51 -0700 (PDT) MIME-Version: 1.0 Received: by 10.223.152.196 with HTTP; Tue, 20 Jun 2017 14:26:50 -0700 (PDT) In-Reply-To: <20170620210047.GA2518@elstar.local> References: <90f1c2cb-8c53-f981-0430-94dc1fa21e56@cisco.com> <20170620194803.GB2432@elstar.local> <20170620210047.GA2518@elstar.local> From: Andy Bierman Date: Tue, 20 Jun 2017 14:26:50 -0700 Message-ID: To: Juergen Schoenwaelder , Benoit Claise , Mahesh Jethanandani , YANG Doctors Content-Type: multipart/alternative; boundary="f403045f1466ea157d05526ae89f" Archived-At: Subject: Re: [yang-doctors] Do we need a YANG doctor lunch meeting at the IETF meeting? X-BeenThere: yang-doctors@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: email list of the yang-doctors directorate List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 20 Jun 2017 21:26:56 -0000 --f403045f1466ea157d05526ae89f Content-Type: text/plain; charset="UTF-8" Hi, IMO there is not much to discuss about RD until there are protocol definitions. Understanding how operators will handle the migration is just as important as how YANG authors will handle the migration. I am still not hearing enthusiasm from customer types about RD. Maybe some big routers are so distributed that they need to be designed as if they were controller platforms. I think normal and smaller devices do not experience long delays between intended and applied. These vendors are not seeing any value in RD. Andy On Tue, Jun 20, 2017 at 2:00 PM, Juergen Schoenwaelder < j.schoenwaelder@jacobs-university.de> wrote: > I was thinking about something low overhead and informal and ideally > as interactive as possible (few slides, more focus on questions and > answers)... > > /js > > On Tue, Jun 20, 2017 at 09:52:27PM +0200, Benoit Claise wrote: > > I like that. > > We use to have that kind of session on Sunday afternoon, part of the EDU > > effort. > > > > Regards, Benoit > > > I wonder whether we need a general informal 'NMDA Q&A' session that is > > > open to everybody who is interested and where we briefly explain the > > > current NMDA model and then answer any questions people may have. > > > > > > There are two NETMOD meetings (Mo afternoon and We afternoon). If NMDA > > > WG discussions go into the second meeting, we could use say a Monday > > > evening bar session (if someone sponsors beer even better - but not > > > required). > > > > > > /js > > > > > > On Tue, Jun 20, 2017 at 10:32:35AM -0700, Mahesh Jethanandani wrote: > > > > I would like to have a discussion around what advise we are giving > to folks on the new NMDA architecture, and bring up any issues that folks > are seeing as they move their models to the new architecture. > > > > > > > > > On Jun 20, 2017, at 9:26 AM, Benoit Claise > wrote: > > > > > > > > > > Regards, Benoit > > > > > > > > > > _______________________________________________ > > > > > yang-doctors mailing list > > > > > yang-doctors@ietf.org > > > > > https://www.ietf.org/mailman/listinfo/yang-doctors > > > > Mahesh Jethanandani > > > > mjethanandani@gmail.com > > > > > > > > _______________________________________________ > > > > yang-doctors mailing list > > > > yang-doctors@ietf.org > > > > https://www.ietf.org/mailman/listinfo/yang-doctors > > > > _______________________________________________ > > yang-doctors mailing list > > yang-doctors@ietf.org > > https://www.ietf.org/mailman/listinfo/yang-doctors > > -- > Juergen Schoenwaelder Jacobs University Bremen gGmbH > Phone: +49 421 200 3587 Campus Ring 1 | 28759 Bremen | Germany > Fax: +49 421 200 3103 > > _______________________________________________ > yang-doctors mailing list > yang-doctors@ietf.org > https://www.ietf.org/mailman/listinfo/yang-doctors > --f403045f1466ea157d05526ae89f Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Hi,

IMO there is not much to discuss ab= out RD until there are protocol definitions.
Understanding how op= erators will handle the migration is just as important as
how YAN= G authors will handle the migration.

I am still no= t hearing enthusiasm from customer types about RD.
Maybe some big= routers are so distributed that they need to be
designed as if t= hey were controller platforms. I think normal and smaller
devices= do not experience long delays between intended and applied.
Thes= e vendors are not seeing any value in RD.


Andy




On Tue, Jun 20, 2017 at = 2:00 PM, Juergen Schoenwaelder <j.schoenwaelder@jacobs-= university.de> wrote:
I was= thinking about something low overhead and informal and ideally
as interactive as possible (few slides, more focus on questions and
answers)...

/js

On Tue, Jun 20, 2017 at 09:52:27PM +0200, Benoit Claise wrote:
> I like that.
> We use to have that kind of session on Sunday afternoon, part of the E= DU
> effort.
>
> Regards, Benoit
> > I wonder whether we need a general informal 'NMDA Q&A'= ; session that is
> > open to everybody who is interested and where we briefly explain = the
> > current NMDA model and then answer any questions people may have.=
> >
> > There are two NETMOD meetings (Mo afternoon and We afternoon). If= NMDA
> > WG discussions go into the second meeting, we could use say a Mon= day
> > evening bar session (if someone sponsors beer even better - but n= ot
> > required).
> >
> > /js
> >
> > On Tue, Jun 20, 2017 at 10:32:35AM -0700, Mahesh Jethanandani wro= te:
> > > I would like to have a discussion around what advise we are = giving to folks on the new NMDA architecture, and bring up any issues that = folks are seeing as they move their models to the new architecture.
> > >
> > > > On Jun 20, 2017, at 9:26 AM, Benoit Claise <bclaise@cisco.com> wrote:
> > > >
> > > > Regards, Benoit
> > > >
> > > > _______________________________________________ > > > > yang-doctors mailing list
> > > > yang-doctors@i= etf.org
> > > > https://www.ietf.org/mailman/<= wbr>listinfo/yang-doctors
> > > Mahesh Jethanandani
> > > mjethanandani@gma= il.com
> > >
> > > _______________________________________________
> > > yang-doctors mailing list
> > > yang-doctors@ietf.o= rg
> > > https://www.ietf.org/mailman/l= istinfo/yang-doctors
>
> _______________________________________________
> yang-doctors mailing list
> yang-doctors@ietf.org
> https://www.ietf.org/mailman/listinfo/ya= ng-doctors

--
Juergen Schoenwaelder=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0Jacobs Univer= sity Bremen gGmbH
Phone: +49 421 200 3587=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0Campus Ring 1 | 28= 759 Bremen | Germany
Fax:=C2=A0 =C2=A0+49 421 200 3103=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0<http://www.jacobs-university.de/>

_______________________________________________
yang-doctors mailing list
yang-doctors@ietf.org
https://www.ietf.org/mailman/listinfo/yang-do= ctors

--f403045f1466ea157d05526ae89f-- From nobody Tue Jun 20 15:34:00 2017 Return-Path: X-Original-To: yang-doctors@ietfa.amsl.com Delivered-To: yang-doctors@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 9D7DD1294EF for ; Tue, 20 Jun 2017 15:33:57 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.9 X-Spam-Level: X-Spam-Status: No, score=-1.9 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_PASS=-0.001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=yumaworks-com.20150623.gappssmtp.com Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id wBdD7xLBoj0f for ; Tue, 20 Jun 2017 15:33:55 -0700 (PDT) Received: from mail-wr0-x233.google.com (mail-wr0-x233.google.com [IPv6:2a00:1450:400c:c0c::233]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 35944129510 for ; Tue, 20 Jun 2017 15:33:55 -0700 (PDT) Received: by mail-wr0-x233.google.com with SMTP id c11so54739061wrc.3 for ; Tue, 20 Jun 2017 15:33:55 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yumaworks-com.20150623.gappssmtp.com; s=20150623; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc; bh=LclhWo88tuiGuiGJDr6OG2oLWW+pQz1XSzgOiFkc8uc=; b=izHvBQTpRSVrgWW0P0CSoY1/397YfzAeNzTPNbRyevLwNyI+yFFetTLCIViNAsDzLO s9Ylgn3cOz6q7OGkmzwb9DJtoYcpBPYhOwnN+wUV7PcpuzFuTEzCHWSwDWCqtSF3uS2u O2vIqSGBGJkzefrTx9WnQa48fXwY6n0Ott6xnw1J964BoyhZxPDsPtPveFjNk7LBzbot 3hAo0RwNdOhPiC82Ts9raTju/JQThht5zHcLUsb7hDLNaPsT0hHugulu85RegsCKZsJs cmd3gGe0O0r1luQmAMZXYGPHFjdD3r9peyav+i0ROM/MRoCjzFZWCUp9LxWK1z64eOBM iDDw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:cc; bh=LclhWo88tuiGuiGJDr6OG2oLWW+pQz1XSzgOiFkc8uc=; b=Z4mxeMk1v/aFDkMP40PY0ZI8awWn4xDyuNZa1lAAzobfD0v++GKlHwAwcobkeynaSA oxkPP5FvfrgtuUoqAwYNIY7EBowcU+ogvP7HMh6Zz/Uv4HbF5Mk6KHmViSLQ3dywfp+2 o6lDe+gvGYifCgZ+fyixdNx+rQ8u1i9c6WFHc3DQpQawoPVqGd7xm25Q8E3aEupbhPb8 wQzDlIU8VoXz0GHqe5ur6TjKv+fTOuPSvNSMQ0b4hNhvCtQwC9Rj9AtSSnKpiBDPaWKo w6EgyzhAIlEnhoLFtPQccvU9+zsesUwRCsEFzPCYggLp9RJDC1xfPqA7D7qiK4mmAJsw Qc4w== X-Gm-Message-State: AKS2vOx56NDDpAw/SBpXVWvfyyaeF4KaIZtzF5xyL+rVZBof88ylMnr7 1hM+L4GNTirdTYmKr/jdB0OcrqFMafXh X-Received: by 10.223.176.253 with SMTP id j58mr20741982wra.65.1497998033654; Tue, 20 Jun 2017 15:33:53 -0700 (PDT) MIME-Version: 1.0 Received: by 10.223.152.196 with HTTP; Tue, 20 Jun 2017 15:33:52 -0700 (PDT) In-Reply-To: <90f1c2cb-8c53-f981-0430-94dc1fa21e56@cisco.com> References: <90f1c2cb-8c53-f981-0430-94dc1fa21e56@cisco.com> From: Andy Bierman Date: Tue, 20 Jun 2017 15:33:52 -0700 Message-ID: To: Benoit Claise Cc: YANG Doctors Content-Type: multipart/alternative; boundary="001a11c0204caba6bd05526bd8aa" Archived-At: Subject: Re: [yang-doctors] Do we need a YANG doctor lunch meeting at the IETF meeting? X-BeenThere: yang-doctors@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: email list of the yang-doctors directorate List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 20 Jun 2017 22:33:58 -0000 --001a11c0204caba6bd05526bd8aa Content-Type: text/plain; charset="UTF-8" Hi, I have a topic that is probably not workable but the issue is very common. It would be nice if YANG library repositories were more consistent and official. There is currently a ban against packaging YANG modules (e.g., RPM or Debian) because of concerns the IETF Trust copyright will be violated somehow. Maybe this could be changed somehow. The packages could correlate to the YANG catalog, e.g. an ietf-routing_1.0.deb package. I have been advocating YANG packages for a few years. IMO it is hopelessly futile to attempt to manage a device as a random collection of individual modules. I have been working on Yocto/bitbake recently and the amount of high-quality tools (see OpenEmbedded) is quite impressive. We could have something like a bitbake recipe that describes the YANG requirements for some service or feature package. Vendors could append the recipes to optimize for their platforms. Recipes could point at open-source code or even vendor libraries that provides instrumentation for a YANG package. We need distributed recipes, not a centralized catalog server, although they could work together. Andy On Tue, Jun 20, 2017 at 9:26 AM, Benoit Claise wrote: > Regards, Benoit > > _______________________________________________ > yang-doctors mailing list > yang-doctors@ietf.org > https://www.ietf.org/mailman/listinfo/yang-doctors > --001a11c0204caba6bd05526bd8aa Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Hi,

I have a topic that is probably not= workable but the issue is very common.

It would b= e nice if YANG library repositories were more consistent and official.
There is currently a ban against packaging YANG modules (e.g., RPM or= Debian)
because of concerns the IETF Trust copyright will be vio= lated somehow.
Maybe this could be changed somehow.
The packages could correlate to the YANG catalog, e.g. an ietf-= routing_1.0.deb package.
I have been advocating YANG packages for= a few years. IMO it is hopelessly futile to
attempt to manage a = device as a random collection of individual modules.

I have been working on Yocto/bitbake recently and the amount of high-qua= lity
tools (see OpenEmbedded) is quite impressive. We could have = something like a bitbake recipe
that describes the YANG requireme= nts for some service or feature package.=C2=A0 Vendors could
appe= nd the recipes to optimize for their platforms. Recipes could point at open= -source code
or even vendor libraries that provides instrumentati= on for a YANG package.
We need distributed recipes, not a central= ized catalog server, although they could work together.




Andy






On Tue, Jun 20, 2017 at 9= :26 AM, Benoit Claise <bclaise@cisco.com> wrote:
Regards, Benoit

_______________________________________________
yang-doctors mailing list
yang-doctors@iet= f.org
https://www.ietf.org/mailman/listinfo/yang-do= ctors

--001a11c0204caba6bd05526bd8aa-- From nobody Wed Jun 21 02:34:10 2017 Return-Path: X-Original-To: yang-doctors@ietfa.amsl.com Delivered-To: yang-doctors@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 8B4B3131C9B; Wed, 21 Jun 2017 02:33:49 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -14.502 X-Spam-Level: X-Spam-Status: No, score=-14.502 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_HI=-5, RP_MATCHES_RCVD=-0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001, USER_IN_DEF_DKIM_WL=-7.5] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=cisco.com Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id kG0U8Hi3dI3O; Wed, 21 Jun 2017 02:33:46 -0700 (PDT) Received: from aer-iport-1.cisco.com (aer-iport-1.cisco.com [173.38.203.51]) (using TLSv1.2 with cipher DHE-RSA-SEED-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 95DF4131C9F; Wed, 21 Jun 2017 02:33:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=@cisco.com; l=5295; q=dns/txt; s=iport; t=1498037622; x=1499247222; h=subject:to:references:cc:from:message-id:date: mime-version:in-reply-to:content-transfer-encoding; bh=Uh8lzV2yIHZZfxnMoT74xKXwSgWvBg0dGBMqwCreJQQ=; b=Z8ZsqoXqfaaZX9q2HZv21GF/vvsUZwf83DMsu6lk6h9zUMsExr4z6g/a kvpu5T+LPeWlnqrDWt2qNUr8PscgcEKMkuc/ytHiAV6NERaQ89EVdyvjY GHoKfLNGOnYF/KCw/+Fs6FYUh9wmUHRoYlIkK3JQsxUo+waQ9Q2YUTCGk Q=; X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: =?us-ascii?q?A0AqAQB3PEpZ/xbLJq1dGQEBAQEBAQEBA?= =?us-ascii?q?QEBBwEBAQEBgyuBD4ENg2yKGXOQbCKILI1MghEshXgCgy0YAQIBAQEBAQEBayi?= =?us-ascii?q?FGAEBAQEDIw8BBTMODAQLEQQBAQECAiMDAgIhJQkIBgEMBgIBAYoQAxUQqXGCJ?= =?us-ascii?q?oc5DYQWAQEBAQEBAQEBAQEBAQEBAQEBAQEBGAWBC4VigWArC4FigQyCV4UlgkI?= =?us-ascii?q?fAQSeJzuHM4dIhGeLG4Zzi15siEcfOIEKMCEIGxVJhQ0cgWc/NolqAQEB?= X-IronPort-AV: E=Sophos;i="5.39,368,1493683200"; d="scan'208";a="695301888" Received: from aer-iport-nat.cisco.com (HELO aer-core-4.cisco.com) ([173.38.203.22]) by aer-iport-1.cisco.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 21 Jun 2017 09:33:37 +0000 Received: from [10.63.23.55] (dhcp-ensft1-uk-vla370-10-63-23-55.cisco.com [10.63.23.55]) by aer-core-4.cisco.com (8.14.5/8.14.5) with ESMTP id v5L9XaGl021449; Wed, 21 Jun 2017 09:33:36 GMT To: Xufeng Liu , Mahesh Jethanandani , "yang-doctors@ietf.org" References: <149564066257.28529.12761629961042171907@ietfa.amsl.com> Cc: "ietf@ietf.org" , "teas@ietf.org" , "draft-ietf-teas-yang-te-topo.all@ietf.org" From: Robert Wilton Message-ID: <5d4541d3-9426-787d-e02b-9c2dbc3a5400@cisco.com> Date: Wed, 21 Jun 2017 10:33:36 +0100 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:45.0) Gecko/20100101 Thunderbird/45.8.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Archived-At: Subject: Re: [yang-doctors] [Teas] Yangdoctors last call review of draft-ietf-teas-yang-te-topo-08 X-BeenThere: yang-doctors@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: email list of the yang-doctors directorate List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 21 Jun 2017 09:33:50 -0000 Hi Xufeng, On 12/06/2017 22:28, Xufeng Liu wrote: > Hi Mahesh, > > Thank you much for the review. We have submitted an updated draft (https://tools.ietf.org/html/draft-ietf-teas-yang-te-topo-09) to address these issues. More detailed explanations are put below inline. > > If the responses and updates are satisfactory, we are ready for the last call. > > Best regards, > - Xufeng > >> -----Original Message----- >> From: Mahesh Jethanandani [mailto:mjethanandani@gmail.com] >> Sent: Wednesday, May 24, 2017 11:44 AM >> To: yang-doctors@ietf.org >> Cc: ietf@ietf.org; teas@ietf.org; draft-ietf-teas-yang-te-topo.all@ietf.org >> Subject: Yangdoctors last call review of draft-ietf-teas-yang-te-topo-08 >> >> Reviewer: Mahesh Jethanandani >> Review result: Ready with Issues >> >> Document reviewed: draft-ietf-teas-yang-te-topo-08 >> >> Status: Ready with Issues >> >> I am not an expert in Traffic Engineering. This review is looking at the draft from >> a YANG perspective. With that said, I have marked it as “Ready with Issues” >> because of some of the points discussed below. >> >> Summary: >> >> This document defines a YANG data model for representing, retrieving and >> manipulating TE Topologies. The model serves as a base model that other >> technology specific TE Topology models can augment. >> >> Comments: >> >> Almost all the containers in the model are presence containers. Is there a reason >> why they have to be presence containers? Note, that presence containers are >> containers whose existence itself represents configuration data. What particular >> configuration data is each container representing in itself? > [Xufeng] Containers that use “presence” are: > - Container “underlay” > o We have changed 13 occurrences of such containers to be not presence container. > - Container “te” under augmentation > o To indicate that “TE” is enabled (configuration data) > o Also used to do augmentation. The “presence” statement can prevent the mandatory child from affecting augmented base model. > - /nw:networks/nw:network/nw:network-types/te-topology! > o A mechanism required by I2RS topology model to specify the topology type. > >> It is difficult to co-relate the diagram with the model itself because of different >> terms being used to define different parts of the model. >> There is “TE Topology Model” and then there is “Generic TE Topology Model”. >> Are these one and the same models? If so, a common term for both of them >> would be helpful. > [Xufeng] Yes. These two terms are the same. Figure 12, Figure 13, and relevant descriptions have been updated to make the document consistent. > >> There is extensive use of groupings in the document. However, not all instances >> of groupings are used multiple number of times. Where they are not being >> repeated, it would be better to move the grouping directly where the uses >> statement resides. Case in point the grouping connectivity-label-restriction-list. > [Xufeng] We have removed the following groupings > te-link-augment > te-node-augment > te-termination-point-augment > te-topologies-augment > te-topology-augment > te-link-state-underlay-attributes > te-node-state-derived-notification > te-topology-type > > The remaining groupings have been kept so that we can: > - Share the groupings in this model > - Prepare to be shared by a model augmenting this model > - Prevent a grouping or configuration section from being too long > - Improve readability > >> The split between config and state containers does not seem to follow any >> particular pattern. > [Xufeng] The pattern is clear: > For each manageable entity (object), there is a config container and state container. The configurable properties go into the config container and state properties go into the state container. Such objects are identified by a list item or a presence container so that the “create”, “delete”, and “modify” operations can be performed on them. The non-presence containers do not represent configuration data so they do not introduce such objects. > >> It is neither a top level split, as is the case with existing IETF >> models, > [Xufeng] We could not do top level split because the base I2RS network topology model (https://tools.ietf.org/html/draft-ietf-i2rs-yang-network-topo-12) that we augment does not have the top-level split (for its own reasons). > >> nor do they follow the OpenConfig style of splitting config and state >> under each relevant leaf, > [Xufeng] The pattern is consistent with this style in principle, with some adjustments to fit to our multiple levels of hierarchy. This is effectively a new forth style of YANG models that is not consistent with any of the three existing styles, i.e.: - Current IETF config/state split model style - NMDA combined config/state tree - OpenConfig split config/state containers immediately above the config true leaves. Tooling that it designed to work with OpenConfig models will need customization to work with these TE models because the config/state containers will not be where the tooling expects them to be. Thanks, Rob From nobody Wed Jun 21 02:57:23 2017 Return-Path: X-Original-To: yang-doctors@ietfa.amsl.com Delivered-To: yang-doctors@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 9DDA0131CFC for ; Wed, 21 Jun 2017 02:57:21 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.899 X-Spam-Level: X-Spam-Status: No, score=-1.899 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id juyMHSLr4Rza for ; Wed, 21 Jun 2017 02:57:19 -0700 (PDT) Received: from trail.lhotka.name (trail.lhotka.name [77.48.224.143]) by ietfa.amsl.com (Postfix) with ESMTP id 28353131CE3 for ; Wed, 21 Jun 2017 02:57:19 -0700 (PDT) Received: by trail.lhotka.name (Postfix, from userid 109) id 6D63618216B5; Wed, 21 Jun 2017 11:58:02 +0200 (CEST) Received: from localhost (nat-2.nic.cz [217.31.205.2]) by trail.lhotka.name (Postfix) with ESMTPSA id CDD0F18201A2; Wed, 21 Jun 2017 11:57:59 +0200 (CEST) From: Ladislav Lhotka To: Andy Bierman , Benoit Claise Cc: YANG Doctors In-Reply-To: References: <90f1c2cb-8c53-f981-0430-94dc1fa21e56@cisco.com> Date: Wed, 21 Jun 2017 11:57:13 +0200 Message-ID: MIME-Version: 1.0 Content-Type: text/plain Archived-At: Subject: Re: [yang-doctors] Do we need a YANG doctor lunch meeting at the IETF meeting? X-BeenThere: yang-doctors@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: email list of the yang-doctors directorate List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 21 Jun 2017 09:57:22 -0000 Andy Bierman writes: > Hi, > > I have a topic that is probably not workable but the issue is very common. > > It would be nice if YANG library repositories were more consistent and > official. > There is currently a ban against packaging YANG modules (e.g., RPM or > Debian) > because of concerns the IETF Trust copyright will be violated somehow. > Maybe this could be changed somehow. > > The packages could correlate to the YANG catalog, e.g. an > ietf-routing_1.0.deb package. > I have been advocating YANG packages for a few years. IMO it is hopelessly > futile to > attempt to manage a device as a random collection of individual > modules. I would support this. I believe it is necessary to sort of "emancipate" YANG library, i.e. treat it as metadata that can exist on its own rather than plain state data provided by a server, or perhaps as a module-level data modelling language. Also, I believe it would be extremely helpful to step back and somehow streamline and simplify all what we have, and in particular integrate YANG library with datastores and the "use-schema" part of schema mount into a coherent whole that is (relatively) easy to understand. Not doing so and just increasing complexity along several axes has IMO the potential to kill the YANG business as such. I already made a concrete initial proposal in Chicago: https://www.ietf.org/mail-archive/web/netmod/current/msg18045.html Lada > > I have been working on Yocto/bitbake recently and the amount of high-quality > tools (see OpenEmbedded) is quite impressive. We could have something like > a bitbake recipe > that describes the YANG requirements for some service or feature package. > Vendors could > append the recipes to optimize for their platforms. Recipes could point at > open-source code > or even vendor libraries that provides instrumentation for a YANG package. > We need distributed recipes, not a centralized catalog server, although > they could work together. > > > > > Andy > > > > > > > On Tue, Jun 20, 2017 at 9:26 AM, Benoit Claise wrote: > >> Regards, Benoit >> >> _______________________________________________ >> yang-doctors mailing list >> yang-doctors@ietf.org >> https://www.ietf.org/mailman/listinfo/yang-doctors >> > _______________________________________________ > yang-doctors mailing list > yang-doctors@ietf.org > https://www.ietf.org/mailman/listinfo/yang-doctors -- Ladislav Lhotka Head, CZ.NIC Labs PGP Key ID: 0xB8F92B08A9F76C67 From nobody Wed Jun 21 07:09:43 2017 Return-Path: X-Original-To: yang-doctors@ietfa.amsl.com Delivered-To: yang-doctors@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 42C0D129B33; Wed, 21 Jun 2017 07:09:42 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -4.801 X-Spam-Level: X-Spam-Status: No, score=-4.801 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-2.8, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=juniper.net Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id h313YxFW1jvI; Wed, 21 Jun 2017 07:09:35 -0700 (PDT) Received: from NAM01-BY2-obe.outbound.protection.outlook.com (mail-by2nam01on0094.outbound.protection.outlook.com [104.47.34.94]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 42DA012704A; Wed, 21 Jun 2017 07:09:35 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=juniper.net; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version; bh=/pR1yA8arxVMEWPnYw/AAL9CcssfjoKZsfjg6opHWa4=; b=ffoZXBcnCvKjLh87g7v3toWffpOhQFH+ohy6siTlN4smVVb5UaVvVZFQM/ACGaiu3RzDeDiL0ZnXPgaoVk/6+M92Pu95ShT+F0GwmrPnOG92fSamBFKxs+YCcxui8r+jetScP2xUnPMQFB/hi/CjgZXeuFRpEKjdDPx/HTqBLhY= Received: from BN3PR0501MB1442.namprd05.prod.outlook.com (10.160.117.151) by BN3PR0501MB1619.namprd05.prod.outlook.com (10.161.220.25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1199.6; Wed, 21 Jun 2017 14:09:34 +0000 Received: from BN3PR0501MB1442.namprd05.prod.outlook.com ([10.160.117.151]) by BN3PR0501MB1442.namprd05.prod.outlook.com ([10.160.117.151]) with mapi id 15.01.1199.015; Wed, 21 Jun 2017 14:09:34 +0000 From: Kent Watsen To: Ladislav Lhotka , Andy Bierman , "Benoit Claise" CC: YANG Doctors , "draft-ietf-netmod-revised-datastores@ietf.org" Thread-Topic: [yang-doctors] Do we need a YANG doctor lunch meeting at the IETF meeting? 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X-BeenThere: yang-doctors@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: email list of the yang-doctors directorate List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 21 Jun 2017 14:09:42 -0000 DQoNCj4gSSB3b3VsZCBzdXBwb3J0IHRoaXMuIEkgYmVsaWV2ZSBpdCBpcyBuZWNlc3NhcnkgdG8g c29ydCBvZiAiZW1hbmNpcGF0ZSINCj4gWUFORyBsaWJyYXJ5LCBpLmUuIHRyZWF0IGl0IGFzIG1l dGFkYXRhIHRoYXQgY2FuIGV4aXN0IG9uIGl0cyBvd24gcmF0aGVyDQo+IHRoYW4gcGxhaW4gc3Rh dGUgZGF0YSBwcm92aWRlZCBieSBhIHNlcnZlciwgb3IgcGVyaGFwcyBhcyBhIG1vZHVsZS1sZXZl bA0KPiBkYXRhIG1vZGVsbGluZyBsYW5ndWFnZS4NCg0KSSBkb24ndCBmb2xsb3csIGhvdyBjYW4g dGhpcyBtZXRhZGF0YSBiZSBpbmRlcGVuZGVudCBvZiBhIHNlcnZlcj8gIEFyZSB5b3UNCnRoaW5r aW5nIHRoYXQgaXQgbWF5IGJlIHVzZWZ1bCBmb3IgcmM6eWFuZy1kYXRhPw0KDQoNCj4gQWxzbywg SSBiZWxpZXZlIGl0IHdvdWxkIGJlIGV4dHJlbWVseSBoZWxwZnVsIHRvIHN0ZXAgYmFjayBhbmQg c29tZWhvdw0KPiBzdHJlYW1saW5lIGFuZCBzaW1wbGlmeSBhbGwgd2hhdCB3ZSBoYXZlLCBhbmQg aW4gcGFydGljdWxhciBpbnRlZ3JhdGUNCj4gWUFORyBsaWJyYXJ5IHdpdGggZGF0YXN0b3JlcyBh bmQgdGhlICJ1c2Utc2NoZW1hIiBwYXJ0IG9mIHNjaGVtYSBtb3VudA0KPiBpbnRvIGEgY29oZXJl bnQgd2hvbGUgdGhhdCBpcyAocmVsYXRpdmVseSkgZWFzeSB0byB1bmRlcnN0YW5kLiBOb3QgZG9p bmcNCj4gc28gYW5kIGp1c3QgaW5jcmVhc2luZyBjb21wbGV4aXR5IGFsb25nIHNldmVyYWwgYXhl cyBoYXMgSU1PIHRoZQ0KPiBwb3RlbnRpYWwgdG8ga2lsbCB0aGUgWUFORyBidXNpbmVzcyBhcyBz dWNoLg0KPg0KPiBJIGFscmVhZHkgbWFkZSBhIGNvbmNyZXRlIGluaXRpYWwgcHJvcG9zYWwgaW4g Q2hpY2FnbzoNCj4NCj4gaHR0cHM6Ly93d3cuaWV0Zi5vcmcvbWFpbC1hcmNoaXZlL3dlYi9uZXRt b2QvY3VycmVudC9tc2cxODA0NS5odG1sDQoNClRoaXMgaXMgYSBnb29kIHByb3Bvc2FsLiAgSXQg aXMgYWxzbyBzb21ldGhpbmcgdGhhdCB0aGUgTk1EQS1hdXRob3JzIGhhdmUNCmJlZW4gaXRlcmF0 aW5nIHRvd2FyZHMgYXMgd2VsbDogDQogIC0gYSBsaXN0IG9mIGFsbCBtb2R1bGVzIHN1cHBvcnRl ZCBieSB0aGUgc2VydmVyIChyZWdhcmRsZXNzIG9mIGRhdGFzdG9yZSkNCiAgLSBhIGxpc3Qgb2Yg bW9kdWxlLXNldHMgKHdoYXQgeW91IGNhbGwgInNjaGVtYSIpIHRoYXQgaGFzIGxlYWZyZWZzIHRv IG1vZHVsZXMNCiAgLSBhIGxpc3Qgb2YgZGF0YXN0b3JlcyB0aGF0IGhhcyBsZWFmcmVmcyB0byBt b2R1bGUtc2V0cw0KDQpLZW50DQoNCg0KDQoNCg== From nobody Wed Jun 21 07:12:28 2017 Return-Path: X-Original-To: yang-doctors@ietfa.amsl.com Delivered-To: yang-doctors@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id EC2F012943D for ; 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Wed, 21 Jun 2017 07:12:21 -0700 (PDT) MIME-Version: 1.0 Received: by 10.223.152.196 with HTTP; Wed, 21 Jun 2017 07:12:20 -0700 (PDT) In-Reply-To: References: <90f1c2cb-8c53-f981-0430-94dc1fa21e56@cisco.com> From: Andy Bierman Date: Wed, 21 Jun 2017 07:12:20 -0700 Message-ID: To: Ladislav Lhotka Cc: Benoit Claise , YANG Doctors Content-Type: multipart/alternative; boundary="001a11478262dbc54c055278f47f" Archived-At: Subject: Re: [yang-doctors] Do we need a YANG doctor lunch meeting at the IETF meeting? X-BeenThere: yang-doctors@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: email list of the yang-doctors directorate List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 21 Jun 2017 14:12:27 -0000 --001a11478262dbc54c055278f47f Content-Type: text/plain; charset="UTF-8" On Wed, Jun 21, 2017 at 2:57 AM, Ladislav Lhotka wrote: > Andy Bierman writes: > > > Hi, > > > > I have a topic that is probably not workable but the issue is very > common. > > > > It would be nice if YANG library repositories were more consistent and > > official. > > There is currently a ban against packaging YANG modules (e.g., RPM or > > Debian) > > because of concerns the IETF Trust copyright will be violated somehow. > > Maybe this could be changed somehow. > > > > The packages could correlate to the YANG catalog, e.g. an > > ietf-routing_1.0.deb package. > > I have been advocating YANG packages for a few years. IMO it is > hopelessly > > futile to > > attempt to manage a device as a random collection of individual > > modules. > > I would support this. I believe it is necessary to sort of "emancipate" > YANG library, i.e. treat it as metadata that can exist on its own rather > than plain state data provided by a server, or perhaps as a module-level > data modelling language. > > Also, I believe it would be extremely helpful to step back and somehow > streamline and simplify all what we have, and in particular integrate > YANG library with datastores and the "use-schema" part of schema mount > into a coherent whole that is (relatively) easy to understand. Not doing > so and just increasing complexity along several axes has IMO the > potential to kill the YANG business as such. > I think the YANG catalog module attempts to provide off-box metadata. The OpenEmbedded project is far superior to anything the IETF could do on its own, but serves as an existence proof that building blocks can be managed somehow (layers, feature-groups, packages for yocto). Networking equipment is still built with a monolithic mindset, so it will be difficult for vendors to provide real modularity. The first-level goal is to let YANG designers and operators organize YANG APIs at a higher level than individual YANG modules. I think the YANG catalog work is properly motivated and heading in the right direction to define the packages. > I already made a concrete initial proposal in Chicago: > > https://www.ietf.org/mail-archive/web/netmod/current/msg18045.html > > Lada > Andy > > > > > I have been working on Yocto/bitbake recently and the amount of > high-quality > > tools (see OpenEmbedded) is quite impressive. We could have something > like > > a bitbake recipe > > that describes the YANG requirements for some service or feature package. > > Vendors could > > append the recipes to optimize for their platforms. Recipes could point > at > > open-source code > > or even vendor libraries that provides instrumentation for a YANG > package. > > We need distributed recipes, not a centralized catalog server, although > > they could work together. > > > > > > > > > > Andy > > > > > > > > > > > > > > On Tue, Jun 20, 2017 at 9:26 AM, Benoit Claise > wrote: > > > >> Regards, Benoit > >> > >> _______________________________________________ > >> yang-doctors mailing list > >> yang-doctors@ietf.org > >> https://www.ietf.org/mailman/listinfo/yang-doctors > >> > > _______________________________________________ > > yang-doctors mailing list > > yang-doctors@ietf.org > > https://www.ietf.org/mailman/listinfo/yang-doctors > > -- > Ladislav Lhotka > Head, CZ.NIC Labs > PGP Key ID: 0xB8F92B08A9F76C67 > --001a11478262dbc54c055278f47f Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable


On Wed, Jun 21, 2017 at 2:57 AM, Ladislav Lhotka <= lhotka@nic.cz> wrote:
Andy Bierman <andy@yumaworks.com> writes:

> Hi,
>
> I have a topic that is probably not workable but the issue is very com= mon.
>
> It would be nice if YANG library repositories were more consistent and=
> official.
> There is currently a ban against packaging YANG modules (e.g., RPM or<= br> > Debian)
> because of concerns the IETF Trust copyright will be violated somehow.=
> Maybe this could be changed somehow.
>
> The packages could correlate to the YANG catalog, e.g. an
> ietf-routing_1.0.deb package.
> I have been advocating YANG packages for a few years. IMO it is hopele= ssly
> futile to
> attempt to manage a device as a random collection of individual
> modules.

I would support this. I believe it is necessary to sort of "emancipate= "
YANG library, i.e. treat it as metadata that can exist on its own rather than plain state data provided by a server, or perhaps as a module-level data modelling language.

Also, I believe it would be extremely helpful to step back and somehow
streamline and simplify all what we have, and in particular integrate
YANG library with datastores and the "use-schema" part of schema = mount
into a coherent whole that is (relatively) easy to understand. Not doing so and just increasing complexity along several axes has IMO the
potential to kill the YANG business as such.


I think the YANG catalog module attempts to provide of= f-box metadata.
The OpenEmbedded project is far superior to anyth= ing the IETF could do
on its own, but serves as an existence proo= f that building blocks can
be managed somehow (layers, feature-gr= oups, packages for yocto).

Networking equipment is= still built with a monolithic mindset, so it
will be difficult f= or vendors to provide real modularity. The first-level goal
is to= let YANG designers and operators organize YANG APIs at a higher
= level than individual YANG modules.

I think the YA= NG catalog work is properly motivated and heading
in the right di= rection to define the packages.



I already made a concrete initial proposal in Chicago:

https://www.ietf.org/mail-arc= hive/web/netmod/current/msg18045.html

Lada


Andy
=C2= =A0

>
> I have been working on Yocto/bitbake recently and the amount of high-q= uality
> tools (see OpenEmbedded) is quite impressive. We could have something = like
> a bitbake recipe
> that describes the YANG requirements for some service or feature packa= ge.
> Vendors could
> append the recipes to optimize for their platforms. Recipes could poin= t at
> open-source code
> or even vendor libraries that provides instrumentation for a YANG pack= age.
> We need distributed recipes, not a centralized catalog server, althoug= h
> they could work together.
>
>
>
>
> Andy
>
>
>
>
>
>
> On Tue, Jun 20, 2017 at 9:26 AM, Benoit Claise <bclaise@cisco.com> wrote:
>
>> Regards, Benoit
>>
>> _______________________________________________
>> yang-doctors mailing list
>> yang-doctors@ietf.org=
>> https://www.ietf.org/mailman/listinf= o/yang-doctors
>>
> _______________________________________________
> yang-doctors mailing list
> yang-doctors@ietf.org
> https://www.ietf.org/mailman/listinfo/ya= ng-doctors

--
Ladislav Lhotka
Head, CZ.NIC Labs
PGP Key ID: 0xB8F92B08A9F76C67

--001a11478262dbc54c055278f47f-- From nobody Wed Jun 21 07:44:54 2017 Return-Path: X-Original-To: yang-doctors@ietfa.amsl.com Delivered-To: yang-doctors@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 113B5129BCF for ; Wed, 21 Jun 2017 07:44:52 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -14.501 X-Spam-Level: X-Spam-Status: No, score=-14.501 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_HI=-5, RP_MATCHES_RCVD=-0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001, USER_IN_DEF_DKIM_WL=-7.5] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=cisco.com Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id A7ziwpR1NZcP for ; Wed, 21 Jun 2017 07:44:49 -0700 (PDT) Received: from aer-iport-4.cisco.com (aer-iport-4.cisco.com [173.38.203.54]) (using TLSv1.2 with cipher DHE-RSA-SEED-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 014C6129BCA for ; Wed, 21 Jun 2017 07:44:48 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=@cisco.com; l=11638; q=dns/txt; s=iport; t=1498056289; x=1499265889; h=subject:to:references:from:message-id:date:mime-version: in-reply-to; bh=WO7Mb71Rx4hPsF7pTr7ZoyYFvDN3NFnMhQid9DVj0Gs=; b=RCoWXBdZY1rJdJmCfTVq84nLMok2VXSPzvPMqoESmlkRXKuAnaj0DDCh 4Uib7cwRmknlX/oKQntb7T3m4PF3MDTPob2WzYVZ40WCZlb9kMnZzLPxB 31MyN8jcMm9WM0o5cI92nUU27CYADiis+l7nkwXpdJ9OMt5qPU5ykKB/7 w=; X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: =?us-ascii?q?A0ASAQChhUpZ/xbLJq1aAxkBAQEBAQEBA?= =?us-ascii?q?QEBAQcBAQEBAYQ6gQ2DbIoZc5BpiCyIIoUqghEhAQqEHoFaAoMzGAECAQEBAQE?= =?us-ascii?q?BAWsohRkBAQEDAQEhSxkCCQIQAgYnAwICGwYGHwMOBgEMBgIBAYoQAxUQjCedY?= =?us-ascii?q?oImKocHDYQWAQEBAQEBAQEBAQEBAQEBAQEBAQEeBYZogWArgnmCV4I0JoJLgkI?= =?us-ascii?q?fBZ4nO457hGeLG4Zzi15siEcfOD9LMCEIGxVJhFSCPT42iWoBAQE?= X-IronPort-AV: E=Sophos;i="5.39,369,1493683200"; d="scan'208,217";a="655584916" Received: from aer-iport-nat.cisco.com (HELO aer-core-3.cisco.com) ([173.38.203.22]) by aer-iport-4.cisco.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 21 Jun 2017 14:44:44 +0000 Received: from [10.55.221.38] (ams-bclaise-nitro5.cisco.com [10.55.221.38]) by aer-core-3.cisco.com (8.14.5/8.14.5) with ESMTP id v5LEiiK8024481; Wed, 21 Jun 2017 14:44:44 GMT To: Andy Bierman , Juergen Schoenwaelder , Mahesh Jethanandani , YANG Doctors References: <90f1c2cb-8c53-f981-0430-94dc1fa21e56@cisco.com> <20170620194803.GB2432@elstar.local> <20170620210047.GA2518@elstar.local> From: Benoit Claise Message-ID: <809d55ca-1dbf-c0da-4b56-5677741f4ff2@cisco.com> Date: Wed, 21 Jun 2017 16:44:45 +0200 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.2.0 MIME-Version: 1.0 In-Reply-To: Content-Type: multipart/alternative; boundary="------------30CEDF7928B446296AC26E4F" Content-Language: en-US Archived-At: Subject: Re: [yang-doctors] Do we need a YANG doctor lunch meeting at the IETF meeting? X-BeenThere: yang-doctors@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: email list of the yang-doctors directorate List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 21 Jun 2017 14:44:52 -0000 This is a multi-part message in MIME format. --------------30CEDF7928B446296AC26E4F Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Hi > Hi, > > IMO there is not much to discuss about RD until there are protocol > definitions. Since we have provided guidelines on how to design new YANG modules in the IETF, there is something to discuss: how to help the YANG module authors migrate, if help is needed. Regards, Benoit > Understanding how operators will handle the migration is just as > important as > how YANG authors will handle the migration. > > I am still not hearing enthusiasm from customer types about RD. > Maybe some big routers are so distributed that they need to be > designed as if they were controller platforms. I think normal and smaller > devices do not experience long delays between intended and applied. > These vendors are not seeing any value in RD. > > > Andy > > > > > On Tue, Jun 20, 2017 at 2:00 PM, Juergen Schoenwaelder > > wrote: > > I was thinking about something low overhead and informal and ideally > as interactive as possible (few slides, more focus on questions and > answers)... > > /js > > On Tue, Jun 20, 2017 at 09:52:27PM +0200, Benoit Claise wrote: > > I like that. > > We use to have that kind of session on Sunday afternoon, part of > the EDU > > effort. > > > > Regards, Benoit > > > I wonder whether we need a general informal 'NMDA Q&A' session > that is > > > open to everybody who is interested and where we briefly > explain the > > > current NMDA model and then answer any questions people may have. > > > > > > There are two NETMOD meetings (Mo afternoon and We afternoon). > If NMDA > > > WG discussions go into the second meeting, we could use say a > Monday > > > evening bar session (if someone sponsors beer even better - > but not > > > required). > > > > > > /js > > > > > > On Tue, Jun 20, 2017 at 10:32:35AM -0700, Mahesh Jethanandani > wrote: > > > > I would like to have a discussion around what advise we are > giving to folks on the new NMDA architecture, and bring up any > issues that folks are seeing as they move their models to the new > architecture. > > > > > > > > > On Jun 20, 2017, at 9:26 AM, Benoit Claise > > wrote: > > > > > > > > > > Regards, Benoit > > > > > > > > > > _______________________________________________ > > > > > yang-doctors mailing list > > > > > yang-doctors@ietf.org > > > > > https://www.ietf.org/mailman/listinfo/yang-doctors > > > > > Mahesh Jethanandani > > > > mjethanandani@gmail.com > > > > > > > > _______________________________________________ > > > > yang-doctors mailing list > > > > yang-doctors@ietf.org > > > > https://www.ietf.org/mailman/listinfo/yang-doctors > > > > > _______________________________________________ > > yang-doctors mailing list > > yang-doctors@ietf.org > > https://www.ietf.org/mailman/listinfo/yang-doctors > > > -- > Juergen Schoenwaelder Jacobs University Bremen gGmbH > Phone: +49 421 200 3587 Campus Ring 1 | 28759 Bremen | Germany > Fax: +49 421 200 3103 > > > _______________________________________________ > yang-doctors mailing list > yang-doctors@ietf.org > https://www.ietf.org/mailman/listinfo/yang-doctors > > > --------------30CEDF7928B446296AC26E4F Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: 8bit
Hi
Hi,

IMO there is not much to discuss about RD until there are protocol definitions.
Since we have provided guidelines on how to design new YANG modules in the IETF, there is something to discuss: how to help the YANG module authors migrate, if help is needed.

Regards, Benoit
Understanding how operators will handle the migration is just as important as
how YANG authors will handle the migration.

I am still not hearing enthusiasm from customer types about RD.
Maybe some big routers are so distributed that they need to be
designed as if they were controller platforms. I think normal and smaller
devices do not experience long delays between intended and applied.
These vendors are not seeing any value in RD.


Andy




On Tue, Jun 20, 2017 at 2:00 PM, Juergen Schoenwaelder <j.schoenwaelder@jacobs-university.de> wrote:
I was thinking about something low overhead and informal and ideally
as interactive as possible (few slides, more focus on questions and
answers)...

/js

On Tue, Jun 20, 2017 at 09:52:27PM +0200, Benoit Claise wrote:
> I like that.
> We use to have that kind of session on Sunday afternoon, part of the EDU
> effort.
>
> Regards, Benoit
> > I wonder whether we need a general informal 'NMDA Q&A' session that is
> > open to everybody who is interested and where we briefly explain the
> > current NMDA model and then answer any questions people may have.
> >
> > There are two NETMOD meetings (Mo afternoon and We afternoon). If NMDA
> > WG discussions go into the second meeting, we could use say a Monday
> > evening bar session (if someone sponsors beer even better - but not
> > required).
> >
> > /js
> >
> > On Tue, Jun 20, 2017 at 10:32:35AM -0700, Mahesh Jethanandani wrote:
> > > I would like to have a discussion around what advise we are giving to folks on the new NMDA architecture, and bring up any issues that folks are seeing as they move their models to the new architecture.
> > >
> > > > On Jun 20, 2017, at 9:26 AM, Benoit Claise <bclaise@cisco.com> wrote:
> > > >
> > > > Regards, Benoit
> > > >
> > > > _______________________________________________
> > > > yang-doctors mailing list
> > > > yang-doctors@ietf.org
> > > > https://www.ietf.org/mailman/listinfo/yang-doctors
> > > Mahesh Jethanandani
> > > mjethanandani@gmail.com
> > >
> > > _______________________________________________
> > > yang-doctors mailing list
> > > yang-doctors@ietf.org
> > > https://www.ietf.org/mailman/listinfo/yang-doctors
>
> _______________________________________________
> yang-doctors mailing list
> yang-doctors@ietf.org
> https://www.ietf.org/mailman/listinfo/yang-doctors

--
Juergen Schoenwaelder           Jacobs University Bremen gGmbH
Phone: +49 421 200 3587         Campus Ring 1 | 28759 Bremen | Germany
Fax:   +49 421 200 3103         <http://www.jacobs-university.de/>

_______________________________________________
yang-doctors mailing list
yang-doctors@ietf.org
https://www.ietf.org/mailman/listinfo/yang-doctors


--------------30CEDF7928B446296AC26E4F-- From nobody Wed Jun 21 08:21:35 2017 Return-Path: X-Original-To: yang-doctors@ietfa.amsl.com Delivered-To: yang-doctors@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id DA63F12E059; Wed, 21 Jun 2017 08:21:32 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -7 X-Spam-Level: X-Spam-Status: No, score=-7 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_HI=-5, RP_MATCHES_RCVD=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=nic.cz Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 2cppGOpi8e1D; Wed, 21 Jun 2017 08:21:30 -0700 (PDT) Received: from mail.nic.cz (mail.nic.cz [IPv6:2001:1488:800:400::400]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id F2B2812D574; Wed, 21 Jun 2017 08:19:56 -0700 (PDT) Received: from [IPv6:2001:1488:fffe:255:2ca8:4ab9:67d:f4fe] (unknown [IPv6:2001:1488:fffe:255:2ca8:4ab9:67d:f4fe]) by mail.nic.cz (Postfix) with ESMTPSA id 0272560FC9; Wed, 21 Jun 2017 17:19:54 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=nic.cz; s=default; t=1498058394; bh=9BMW380K5b02oqdZzwlgc+i0n+uxkXGTbrEDR1UaRy0=; h=From:Date:To; b=psky3VoeR59vwTIedSbk28CoIxt61q5J5KNDznivbpw/vbQunHKTohETxKDbe7WL4 yjoOSeADhiYyzMbzdZBImpPV3mujZY7R1N1r58mKeoRQRIapxgHQEb7gR2KnsT0nk2 m0V0NdqBUhpgi8uGg8dnF13WLCJeShMUq7enwdY8= Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Mac OS X Mail 10.3 \(3273\)) From: Ladislav Lhotka In-Reply-To: <9427148F-4A84-45F9-A006-31699F536F8A@juniper.net> Date: Wed, 21 Jun 2017 17:19:53 +0200 Cc: Andy Bierman , Benoit Claise , Benoit Claise , "draft-ietf-netmod-revised-datastores@ietf.org" Content-Transfer-Encoding: quoted-printable Message-Id: <7D5EC759-2676-4DC4-8305-91D7F8757962@nic.cz> References: <90f1c2cb-8c53-f981-0430-94dc1fa21e56@cisco.com> <9427148F-4A84-45F9-A006-31699F536F8A@juniper.net> To: Kent Watsen X-Mailer: Apple Mail (2.3273) X-Virus-Scanned: clamav-milter 0.99.2 at mail X-Virus-Status: Clean Archived-At: Subject: Re: [yang-doctors] Do we need a YANG doctor lunch meeting at the IETF meeting? X-BeenThere: yang-doctors@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: email list of the yang-doctors directorate List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 21 Jun 2017 15:21:33 -0000 > On 21 Jun 2017, at 16:09, Kent Watsen wrote: >=20 >=20 >=20 >> I would support this. I believe it is necessary to sort of = "emancipate" >> YANG library, i.e. treat it as metadata that can exist on its own = rather >> than plain state data provided by a server, or perhaps as a = module-level >> data modelling language. >=20 > I don't follow, how can this metadata be independent of a server? Are = you > thinking that it may be useful for rc:yang-data? YANG modules can also be served by NETCONF/RESTCONF servers, but I think = we understand they exist independently - they are published in RFCs, = processed by tools etc. So, the information provided by (extended) YANG = library could be thought of as a specification of an entire data model = consisting of a number of YANG modules. It too could be published etc. I think what Andy proposed is more about conformance requirements, which = is probably a little bit different - e.g., you want to specify a range = of module revisions that are compatible. What I have in mind is more a = specification of a concrete data model including any number of modules = in specific revisions but also datastores and schema-mount info. So = tools can eventually construct data models for all datastores, no matter = how they are constructed. >=20 >=20 >> Also, I believe it would be extremely helpful to step back and = somehow >> streamline and simplify all what we have, and in particular integrate >> YANG library with datastores and the "use-schema" part of schema = mount >> into a coherent whole that is (relatively) easy to understand. Not = doing >> so and just increasing complexity along several axes has IMO the >> potential to kill the YANG business as such. >>=20 >> I already made a concrete initial proposal in Chicago: >>=20 >> https://www.ietf.org/mail-archive/web/netmod/current/msg18045.html >=20 > This is a good proposal. It is also something that the NMDA-authors = have > been iterating towards as well:=20 > - a list of all modules supported by the server (regardless of = datastore) > - a list of module-sets (what you call "schema") that has leafrefs to = modules > - a list of datastores that has leafrefs to module-sets Yes, exactly. Thanks, Lada >=20 > Kent >=20 >=20 >=20 >=20 -- Ladislav Lhotka Head, CZ.NIC Labs PGP Key ID: 0xB8F92B08A9F76C67 From nobody Wed Jun 21 12:23:12 2017 Return-Path: X-Original-To: yang-doctors@ietfa.amsl.com Delivered-To: yang-doctors@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 560111241FC; Wed, 21 Jun 2017 12:23:11 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.698 X-Spam-Level: X-Spam-Status: No, score=-2.698 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, FREEMAIL_FROM=0.001, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_LOW=-0.7, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=gmail.com Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id RuKg91m_C0vU; Wed, 21 Jun 2017 12:23:09 -0700 (PDT) Received: from mail-oi0-x241.google.com (mail-oi0-x241.google.com [IPv6:2607:f8b0:4003:c06::241]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 3381612943A; Wed, 21 Jun 2017 12:23:09 -0700 (PDT) Received: by mail-oi0-x241.google.com with SMTP id f189so95144oig.2; Wed, 21 Jun 2017 12:23:09 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:subject:from:in-reply-to:date:cc:message-id:references :to; bh=qs88IIP3oTz6GFD11RnXK/CxuHNP110FiPRJbcdZEVQ=; b=BPqTHf19wqPtQqrDZOAIohgPzN+YZQZW6OipugFUL2/IWceI8IuEcCFdWre0Rj7Oww KNA8Daom3WzwaPylEziX70YbxTT6RW4xTx4y/it2LH/VtbT8dz1twDse/RFGxzBBOC/d jh4vrU+nkWDGMtCUYAgwVdG/9tMthAfl0aDxe4/cg82eh4jPCX5SlW4usnokzYvwwio9 93C47ygFsXPiVaRPsIe5nyNUI7YGFlso6Ik+C50s43V3OTG+FJ5voMSQqi5JMh1/Cbfv k8IYCCNzvPpaDcTVRx0eqjvANvnyFm/Qz4vLeLsBcPcbB+8+myte6QT2hxiMkbCuYwcH LSOA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:subject:from:in-reply-to:date:cc :message-id:references:to; bh=qs88IIP3oTz6GFD11RnXK/CxuHNP110FiPRJbcdZEVQ=; b=JzlU3MufeK9zj8vI/rWQ5tk+ba8TZn0geKcJ/KaRHlB7paUWlU8OZelF4kRlg4eqlr tI3201NmbzQzwP+9CjMf//TzUU15ZzL2oJaPqwuB/+CdzWhzO4gi2cPygNghbx013ts1 +xMhbht87E32SUz2qH8h8DYWA41he7aCSJMHo6HaqUL03GF3BqfSWzZeR4G5BD2WywzS OmK3zwure+1GnXswrhbnN0WJzdzThNCTUe1QftlJ3Qqc16L7cUKp1rAlmf7w58LyqgaD 4Z+AJUb657SQTSTiSFnNA8PJSoetYV/QKN6GWogblsM4glhNxBMN3pBI5uWmna4g9GMr 9iug== X-Gm-Message-State: AKS2vOyIgRibBx/k29xogMvq9TVxcqDwm7Rv28tP+KgwrOusNjXJD8Ei 0K+JGd2Z/1jdKD5j6As= X-Received: by 10.202.219.11 with SMTP id s11mr1285745oig.208.1498072988387; Wed, 21 Jun 2017 12:23:08 -0700 (PDT) Received: from ?IPv6:2001:420:30d:1320:bd54:67dd:4bbf:4bc? ([2001:420:30d:1320:bd54:67dd:4bbf:4bc]) by smtp.gmail.com with ESMTPSA id m128sm6129549oif.9.2017.06.21.12.23.06 (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Wed, 21 Jun 2017 12:23:07 -0700 (PDT) Content-Type: multipart/alternative; boundary="Apple-Mail=_6B589232-9EC3-4216-911A-54A9F0C3C2E6" Mime-Version: 1.0 (Mac OS X Mail 9.3 \(3124\)) From: Mahesh Jethanandani In-Reply-To: <5d4541d3-9426-787d-e02b-9c2dbc3a5400@cisco.com> Date: Wed, 21 Jun 2017 12:23:09 -0700 Cc: YANG Doctors , Benoit Claise Message-Id: References: <149564066257.28529.12761629961042171907@ietfa.amsl.com> <5d4541d3-9426-787d-e02b-9c2dbc3a5400@cisco.com> To: draft-dsdt-nmda-guidelines@ietf.org X-Mailer: Apple Mail (2.3124) Archived-At: Subject: Re: [yang-doctors] [Teas] Yangdoctors last call review of draft-ietf-teas-yang-te-topo-08 X-BeenThere: yang-doctors@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: email list of the yang-doctors directorate List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 21 Jun 2017 19:23:11 -0000 --Apple-Mail=_6B589232-9EC3-4216-911A-54A9F0C3C2E6 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii > On Jun 21, 2017, at 2:33 AM, Robert Wilton wrote: >=20 >>>=20 >>> It is neither a top level split, as is the case with existing IETF >>> models, >> [Xufeng] We could not do top level split because the base I2RS = network topology model = (https://tools.ietf.org/html/draft-ietf-i2rs-yang-network-topo-12 = ) that = we augment does not have the top-level split (for its own reasons). What is our recommendation to folks who have dependency on other models = that have not redone their models per the NDMA guidelines? Mahesh Jethanandani mjethanandani@gmail.com --Apple-Mail=_6B589232-9EC3-4216-911A-54A9F0C3C2E6 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=us-ascii
On Jun 21, 2017, at 2:33 AM, Robert Wilton <rwilton@cisco.com> = wrote:


It is neither a top level split, as = is the case with existing IETF
models,
[Xufeng] We could not do top level split because = the base I2RS network topology model (https://tools.ietf.org/html/draft-ietf-i2rs-yang-network-topo-1= 2) that we augment does not have the top-level split (for its own = reasons).

What is our recommendation to folks who have = dependency on other models that have not redone their models per the = NDMA guidelines?

Mahesh Jethanandani
mjethanandani@gmail.com



= --Apple-Mail=_6B589232-9EC3-4216-911A-54A9F0C3C2E6-- From nobody Wed Jun 21 13:37:28 2017 Return-Path: X-Original-To: yang-doctors@ietfa.amsl.com Delivered-To: yang-doctors@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 14FBC1294A3; Wed, 21 Jun 2017 13:37:27 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.9 X-Spam-Level: X-Spam-Status: No, score=-1.9 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RP_MATCHES_RCVD=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id YI7bx3Qtz7YP; Wed, 21 Jun 2017 13:37:24 -0700 (PDT) Received: from atlas5.jacobs-university.de (atlas5.jacobs-university.de [212.201.44.20]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 27AFD1294A2; Wed, 21 Jun 2017 13:37:24 -0700 (PDT) Received: from localhost (demetrius5.irc-it.jacobs-university.de [10.70.0.222]) by atlas5.jacobs-university.de (Postfix) with ESMTP id D2C88672; Wed, 21 Jun 2017 22:37:22 +0200 (CEST) X-Virus-Scanned: amavisd-new at jacobs-university.de Received: from atlas5.jacobs-university.de ([10.70.0.217]) by localhost (demetrius5.jacobs-university.de [10.70.0.222]) (amavisd-new, port 10032) with ESMTP id MkAMtJRZX5Dm; Wed, 21 Jun 2017 22:37:22 +0200 (CEST) Received: from hermes.jacobs-university.de (hermes.jacobs-university.de [212.201.44.23]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "hermes.jacobs-university.de", Issuer "Jacobs University CA - G01" (verified OK)) by atlas5.jacobs-university.de (Postfix) with ESMTPS; Wed, 21 Jun 2017 22:37:22 +0200 (CEST) Received: from localhost (demetrius2.jacobs-university.de [212.201.44.47]) by hermes.jacobs-university.de (Postfix) with ESMTP id B0D5B2009B; Wed, 21 Jun 2017 22:37:22 +0200 (CEST) X-Virus-Scanned: amavisd-new at jacobs-university.de Received: from hermes.jacobs-university.de ([212.201.44.23]) by localhost (demetrius2.jacobs-university.de [212.201.44.32]) (amavisd-new, port 10024) with ESMTP id 8uGEKASKWtjB; Wed, 21 Jun 2017 22:37:22 +0200 (CEST) Received: from elstar.local (elstar.jacobs.jacobs-university.de [10.50.231.133]) by hermes.jacobs-university.de (Postfix) with ESMTP id 2381220091; Wed, 21 Jun 2017 22:37:21 +0200 (CEST) Received: by elstar.local (Postfix, from userid 501) id 1CDB83FCD7E6; Wed, 21 Jun 2017 22:37:19 +0200 (CEST) Date: Wed, 21 Jun 2017 22:37:18 +0200 From: Juergen Schoenwaelder To: Mahesh Jethanandani Cc: draft-dsdt-nmda-guidelines@ietf.org, YANG Doctors , Benoit Claise Message-ID: <20170621203718.GA919@elstar.local> Reply-To: Juergen Schoenwaelder Mail-Followup-To: Mahesh Jethanandani , draft-dsdt-nmda-guidelines@ietf.org, YANG Doctors , Benoit Claise References: <149564066257.28529.12761629961042171907@ietfa.amsl.com> <5d4541d3-9426-787d-e02b-9c2dbc3a5400@cisco.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.6.0 (2016-04-01) Archived-At: Subject: Re: [yang-doctors] [Teas] Yangdoctors last call review of draft-ietf-teas-yang-te-topo-08 X-BeenThere: yang-doctors@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: email list of the yang-doctors directorate List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 21 Jun 2017 20:37:27 -0000 On Wed, Jun 21, 2017 at 12:23:09PM -0700, Mahesh Jethanandani wrote: > > > On Jun 21, 2017, at 2:33 AM, Robert Wilton wrote: > > > >>> > >>> It is neither a top level split, as is the case with existing IETF > >>> models, > >> [Xufeng] We could not do top level split because the base I2RS network topology model (https://tools.ietf.org/html/draft-ietf-i2rs-yang-network-topo-12 ) that we augment does not have the top-level split (for its own reasons). > > What is our recommendation to folks who have dependency on other models that have not redone their models per the NDMA guidelines? > Since the teas topology model depends on the i2rs topology model, they better work this out together. Because of the normative reference, the teas model won't be published before the i2rs model is ready. The i2rs topology model does not seem to have been updated since March 1st. I assume this is primarily a coordination issue to resolve. /js PS: I have no clue which model is following NDMA guidelines and if not for which reasons. Note that the basic idea behind NMDA is to avoid top-level splits. PS: I think Martin was YANG doctor for the i2rs topology model; he might provide a better informed answer. -- Juergen Schoenwaelder Jacobs University Bremen gGmbH Phone: +49 421 200 3587 Campus Ring 1 | 28759 Bremen | Germany Fax: +49 421 200 3103 From nobody Wed Jun 21 13:51:02 2017 Return-Path: X-Original-To: yang-doctors@ietfa.amsl.com Delivered-To: yang-doctors@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id A12F1129449; Wed, 21 Jun 2017 13:51:01 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.001 X-Spam-Level: X-Spam-Status: No, score=-2.001 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=juniper.net Received: from 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DQo+IGxlYXZlcy4NCj4gDQo+IFRvb2xpbmcgdGhhdCBpdCBkZXNpZ25lZCB0byB3b3JrIHdpdGgg T3BlbkNvbmZpZyBtb2RlbHMgd2lsbCBuZWVkDQo+IGN1c3RvbWl6YXRpb24gdG8gd29yayB3aXRo IHRoZXNlIFRFIG1vZGVscyBiZWNhdXNlIHRoZSBjb25maWcvc3RhdGUNCj4gY29udGFpbmVycyB3 aWxsIG5vdCBiZSB3aGVyZSB0aGUgdG9vbGluZyBleHBlY3RzIHRoZW0gdG8gYmUuDQo+IA0KPiBU aGFua3MsDQo+IFJvYg0KDQo= From nobody Thu Jun 22 02:23:53 2017 Return-Path: X-Original-To: yang-doctors@ietfa.amsl.com Delivered-To: yang-doctors@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id D5BDB129405; Thu, 22 Jun 2017 02:23:33 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -14.503 X-Spam-Level: X-Spam-Status: No, score=-14.503 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_HI=-5, RP_MATCHES_RCVD=-0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, USER_IN_DEF_DKIM_WL=-7.5] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=cisco.com Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id a7ZYlDSdzheP; Thu, 22 Jun 2017 02:23:31 -0700 (PDT) Received: from aer-iport-3.cisco.com (aer-iport-3.cisco.com [173.38.203.53]) (using TLSv1.2 with cipher DHE-RSA-SEED-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id CEA4D128B51; Thu, 22 Jun 2017 02:23:21 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=@cisco.com; l=8061; q=dns/txt; s=iport; t=1498123402; x=1499333002; h=subject:to:references:cc:from:message-id:date: mime-version:in-reply-to:content-transfer-encoding; bh=2qpl5Dg2c0m4dCo9rZm5VnuGbw+/L0pc001uqbpPd8U=; b=JDZkerYKTYE3MuQN8DSfzmoFtDFwZJdhU04vESX22S1w55HX97z+Ca3W zFMHtxiE2CAGnI5Uy/fTQABZtejO4aWIJmVyeY1hY+2Kv60Cp1mwgzb4H ci8eO75KR9tnT7DllHLrOO4SJJeCGUcT9nTaK5XxF+E5P4iXfSjjWXD/y Q=; X-IronPort-AV: E=Sophos;i="5.39,372,1493683200"; d="scan'208";a="653782631" Received: from aer-iport-nat.cisco.com (HELO aer-core-2.cisco.com) ([173.38.203.22]) by aer-iport-3.cisco.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 22 Jun 2017 09:23:20 +0000 Received: from [10.63.23.55] (dhcp-ensft1-uk-vla370-10-63-23-55.cisco.com [10.63.23.55]) by aer-core-2.cisco.com (8.14.5/8.14.5) with ESMTP id v5M9NJ72018339; Thu, 22 Jun 2017 09:23:20 GMT To: Xufeng Liu , Mahesh Jethanandani , "yang-doctors@ietf.org" References: <149564066257.28529.12761629961042171907@ietfa.amsl.com> <5d4541d3-9426-787d-e02b-9c2dbc3a5400@cisco.com> Cc: "ietf@ietf.org" , "teas@ietf.org" , "draft-ietf-teas-yang-te-topo.all@ietf.org" , "Benoit Claise (bclaise)" From: Robert Wilton Message-ID: <3a1c319f-0255-b8ee-ecbd-739568c1dc7f@cisco.com> Date: Thu, 22 Jun 2017 10:23:19 +0100 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:45.0) Gecko/20100101 Thunderbird/45.8.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Archived-At: Subject: Re: [yang-doctors] [Teas] Yangdoctors last call review of draft-ietf-teas-yang-te-topo-08 X-BeenThere: yang-doctors@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: email list of the yang-doctors directorate List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 22 Jun 2017 09:23:34 -0000 Hi Xufeng, OK, by tooling, I don't mean the pyang plugins that I have been working on to convert between different types of models. As you aware, the TE YANG models can easily be converted to NMDA style since I have already done it (https://github.com/rgwilton/ietf-models-to-combined). My comment actually relates to the fact the structure used by TE YANG modules don't match any other YANG modules - they are using their own unique style of structure. Today, there are three common styles of modules: (1) IETF style split config/state trees (e.g. ietf-interfaces). (2) IETF NMDA style combined config/state trees (i.e. where all IETF modules are heading to). (3) OpenConfig style modules with the config/state containers immediately above the config leaves. Tooling is likely to be optimized to work with these model structures, but the TE modules do not fit into any of the three styles above. They are a yet another OpenConfig-like style, but that is different enough that tooling that is designed to work with OpenConfig style YANG modules would likely not work with the TE YANG modules. Specifically, for clients that expecting to work with an OpenConfig style YANG module, then if it knows the path to config leaf X, then they would expect the applied config value to be available at the path "../state/X". But, this doesn't hold for the structure being used in the TE YANG models. I believe strongly that the models being produced by organizations should be structures in a consistent way, hence why I think that the published standard version of the TE YANG modules should immediately align to the NMDA style. Thanks, Rob On 22/06/2017 04:16, Xufeng Liu wrote: > Hi Rob, > > While the tooling is very nice to have, especially for writing new models or converting models, we do not have to use it for every model. It seems not necessary to use the tooling on this model for now. We already know that we can manually convert it to NMDA style if needed. > > Thanks, > - Xufeng > >> -----Original Message----- >> From: Robert Wilton [mailto:rwilton@cisco.com] >> Sent: Wednesday, June 21, 2017 5:34 AM >> To: Xufeng Liu ; Mahesh Jethanandani >> ; yang-doctors@ietf.org >> Cc: ietf@ietf.org; teas@ietf.org; draft-ietf-teas-yang-te-topo.all@ietf.org >> Subject: Re: [Teas] Yangdoctors last call review of draft-ietf-teas-yang-te-topo- >> 08 >> >> Hi Xufeng, >> >> On 12/06/2017 22:28, Xufeng Liu wrote: >>> Hi Mahesh, >>> >>> Thank you much for the review. We have submitted an updated draft >> (https://tools.ietf.org/html/draft-ietf-teas-yang-te-topo-09) to address these >> issues. More detailed explanations are put below inline. >>> If the responses and updates are satisfactory, we are ready for the last call. >>> >>> Best regards, >>> - Xufeng >>> >>>> -----Original Message----- >>>> From: Mahesh Jethanandani [mailto:mjethanandani@gmail.com] >>>> Sent: Wednesday, May 24, 2017 11:44 AM >>>> To: yang-doctors@ietf.org >>>> Cc: ietf@ietf.org; teas@ietf.org; >>>> draft-ietf-teas-yang-te-topo.all@ietf.org >>>> Subject: Yangdoctors last call review of >>>> draft-ietf-teas-yang-te-topo-08 >>>> >>>> Reviewer: Mahesh Jethanandani >>>> Review result: Ready with Issues >>>> >>>> Document reviewed: draft-ietf-teas-yang-te-topo-08 >>>> >>>> Status: Ready with Issues >>>> >>>> I am not an expert in Traffic Engineering. This review is looking at >>>> the draft from a YANG perspective. With that said, I have marked it as “Ready >> with Issues” >>>> because of some of the points discussed below. >>>> >>>> Summary: >>>> >>>> This document defines a YANG data model for representing, retrieving >>>> and manipulating TE Topologies. The model serves as a base model that >>>> other technology specific TE Topology models can augment. >>>> >>>> Comments: >>>> >>>> Almost all the containers in the model are presence containers. Is >>>> there a reason why they have to be presence containers? Note, that >>>> presence containers are containers whose existence itself represents >>>> configuration data. What particular configuration data is each container >> representing in itself? >>> [Xufeng] Containers that use “presence” are: >>> - Container “underlay” >>> o We have changed 13 occurrences of such containers to be not >> presence container. >>> - Container “te” under augmentation >>> o To indicate that “TE” is enabled (configuration data) >>> o Also used to do augmentation. The “presence” statement can >> prevent the mandatory child from affecting augmented base model. >>> - /nw:networks/nw:network/nw:network-types/te-topology! >>> o A mechanism required by I2RS topology model to specify the >> topology type. >>>> It is difficult to co-relate the diagram with the model itself >>>> because of different terms being used to define different parts of the model. >>>> There is “TE Topology Model” and then there is “Generic TE Topology >> Model”. >>>> Are these one and the same models? If so, a common term for both of >>>> them would be helpful. >>> [Xufeng] Yes. These two terms are the same. Figure 12, Figure 13, and relevant >> descriptions have been updated to make the document consistent. >>>> There is extensive use of groupings in the document. However, not all >>>> instances of groupings are used multiple number of times. Where they >>>> are not being repeated, it would be better to move the grouping >>>> directly where the uses statement resides. Case in point the grouping >> connectivity-label-restriction-list. >>> [Xufeng] We have removed the following groupings >>> te-link-augment >>> te-node-augment >>> te-termination-point-augment >>> te-topologies-augment >>> te-topology-augment >>> te-link-state-underlay-attributes >>> te-node-state-derived-notification >>> te-topology-type >>> >>> The remaining groupings have been kept so that we can: >>> - Share the groupings in this model >>> - Prepare to be shared by a model augmenting this model >>> - Prevent a grouping or configuration section from being too long >>> - Improve readability >>> >>>> The split between config and state containers does not seem to follow >>>> any particular pattern. >>> [Xufeng] The pattern is clear: >>> For each manageable entity (object), there is a config container and state >> container. The configurable properties go into the config container and state >> properties go into the state container. Such objects are identified by a list item >> or a presence container so that the “create”, “delete”, and “modify” operations >> can be performed on them. The non-presence containers do not represent >> configuration data so they do not introduce such objects. >>>> It is neither a top level split, as is the case with existing IETF >>>> models, >>> [Xufeng] We could not do top level split because the base I2RS network >> topology model (https://tools.ietf.org/html/draft-ietf-i2rs-yang-network-topo- >> 12) that we augment does not have the top-level split (for its own reasons). >>>> nor do they follow the OpenConfig style of splitting config and state >>>> under each relevant leaf, >>> [Xufeng] The pattern is consistent with this style in principle, with some >> adjustments to fit to our multiple levels of hierarchy. >> This is effectively a new forth style of YANG models that is not consistent with >> any of the three existing styles, i.e.: >> - Current IETF config/state split model style >> - NMDA combined config/state tree >> - OpenConfig split config/state containers immediately above the config true >> leaves. >> >> Tooling that it designed to work with OpenConfig models will need >> customization to work with these TE models because the config/state >> containers will not be where the tooling expects them to be. >> >> Thanks, >> Rob From nobody Thu Jun 22 02:46:49 2017 Return-Path: X-Original-To: yang-doctors@ietfa.amsl.com Delivered-To: yang-doctors@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id BB698127342 for ; Thu, 22 Jun 2017 02:46:48 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -14.502 X-Spam-Level: X-Spam-Status: No, score=-14.502 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_HI=-5, RP_MATCHES_RCVD=-0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, USER_IN_DEF_DKIM_WL=-7.5] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=cisco.com Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 1h8qFhK7p19h for ; Thu, 22 Jun 2017 02:46:46 -0700 (PDT) Received: from aer-iport-1.cisco.com (aer-iport-1.cisco.com [173.38.203.51]) (using TLSv1.2 with cipher DHE-RSA-SEED-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 420861275AB for ; Thu, 22 Jun 2017 02:46:46 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=@cisco.com; l=5916; q=dns/txt; s=iport; t=1498124806; x=1499334406; h=subject:to:cc:references:from:message-id:date: mime-version:in-reply-to; bh=mPtER3wt85Uh6w7TLuQHhACw/FVpHMOYQOM1MBZurhY=; b=aiucl+90YIZzqdFcg91uPXCPaLWftoNUImFXqJx6ntUgyRJppnpWt+dJ 14MPngIhGN0EEJzarQzg5ZSc0v/ikwwZbf9Q1b1tbFvuxcza8TUHpds8b pu13MUG2J70W6GAqLNBdR7ClcBvPfbhz/TfI9nMnEqHadE+AcnI2tzd9n 8=; X-IronPort-AV: E=Sophos;i="5.39,372,1493683200"; d="scan'208,217";a="695327251" Received: from aer-iport-nat.cisco.com (HELO aer-core-1.cisco.com) ([173.38.203.22]) by aer-iport-1.cisco.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 22 Jun 2017 09:46:44 +0000 Received: from [10.55.221.38] (ams-bclaise-nitro5.cisco.com [10.55.221.38]) by aer-core-1.cisco.com (8.14.5/8.14.5) with ESMTP id v5M9kilF022368; Thu, 22 Jun 2017 09:46:44 GMT To: Andy Bierman Cc: YANG Doctors , "Joe Clarke (jclarke)" References: <90f1c2cb-8c53-f981-0430-94dc1fa21e56@cisco.com> From: Benoit Claise Message-ID: <9ec80a7d-da0b-29ff-c688-939216046834@cisco.com> Date: Thu, 22 Jun 2017 11:46:40 +0200 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.2.0 MIME-Version: 1.0 In-Reply-To: Content-Type: multipart/alternative; boundary="------------1D11205670C896D2E4AA03B4" Content-Language: en-US Archived-At: Subject: Re: [yang-doctors] Do we need a YANG doctor lunch meeting at the IETF meeting? X-BeenThere: yang-doctors@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: email list of the yang-doctors directorate List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 22 Jun 2017 09:46:49 -0000 This is a multi-part message in MIME format. --------------1D11205670C896D2E4AA03B4 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Ok, I booked a room for Tuesday lunch time. Since it concerns Joe Clarke, cc'ing Joe Clarke. Regards, Benoit > Hi, > > I have a topic that is probably not workable but the issue is very common. > > It would be nice if YANG library repositories were more consistent and > official. > There is currently a ban against packaging YANG modules (e.g., RPM or > Debian) > because of concerns the IETF Trust copyright will be violated somehow. > Maybe this could be changed somehow. > > The packages could correlate to the YANG catalog, e.g. an > ietf-routing_1.0.deb package. > I have been advocating YANG packages for a few years. IMO it is > hopelessly futile to > attempt to manage a device as a random collection of individual modules. > > I have been working on Yocto/bitbake recently and the amount of > high-quality > tools (see OpenEmbedded) is quite impressive. We could have something > like a bitbake recipe > that describes the YANG requirements for some service or feature > package. Vendors could > append the recipes to optimize for their platforms. Recipes could > point at open-source code > or even vendor libraries that provides instrumentation for a YANG package. > We need distributed recipes, not a centralized catalog server, > although they could work together. > > > > > Andy > > > > > > > On Tue, Jun 20, 2017 at 9:26 AM, Benoit Claise > wrote: > > Regards, Benoit > > _______________________________________________ > yang-doctors mailing list > yang-doctors@ietf.org > https://www.ietf.org/mailman/listinfo/yang-doctors > > > --------------1D11205670C896D2E4AA03B4 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: 8bit
Ok, I booked a room for Tuesday lunch time.
Since it concerns Joe Clarke, cc'ing Joe Clarke.

Regards, Benoit
Hi,

I have a topic that is probably not workable but the issue is very common.

It would be nice if YANG library repositories were more consistent and official.
There is currently a ban against packaging YANG modules (e.g., RPM or Debian)
because of concerns the IETF Trust copyright will be violated somehow.
Maybe this could be changed somehow.

The packages could correlate to the YANG catalog, e.g. an ietf-routing_1.0.deb package.
I have been advocating YANG packages for a few years. IMO it is hopelessly futile to
attempt to manage a device as a random collection of individual modules.

I have been working on Yocto/bitbake recently and the amount of high-quality
tools (see OpenEmbedded) is quite impressive. We could have something like a bitbake recipe
that describes the YANG requirements for some service or feature package.  Vendors could
append the recipes to optimize for their platforms. Recipes could point at open-source code
or even vendor libraries that provides instrumentation for a YANG package.
We need distributed recipes, not a centralized catalog server, although they could work together.





Andy






On Tue, Jun 20, 2017 at 9:26 AM, Benoit Claise <bclaise@cisco.com> wrote:
Regards, Benoit

_______________________________________________
yang-doctors mailing list
yang-doctors@ietf.org
https://www.ietf.org/mailman/listinfo/yang-doctors


--------------1D11205670C896D2E4AA03B4-- From nobody Thu Jun 22 02:53:20 2017 Return-Path: X-Original-To: yang-doctors@ietfa.amsl.com Delivered-To: yang-doctors@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id E774B127342 for ; Thu, 22 Jun 2017 02:53:17 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -14.502 X-Spam-Level: X-Spam-Status: No, score=-14.502 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_HI=-5, RP_MATCHES_RCVD=-0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, USER_IN_DEF_DKIM_WL=-7.5] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=cisco.com Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id CZ9skzvO1hyN for ; Thu, 22 Jun 2017 02:53:07 -0700 (PDT) Received: from aer-iport-3.cisco.com (aer-iport-3.cisco.com [173.38.203.53]) (using TLSv1.2 with cipher DHE-RSA-SEED-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id B0B6E1292C5 for ; Thu, 22 Jun 2017 02:53:06 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=@cisco.com; l=14185; q=dns/txt; s=iport; t=1498125186; x=1499334786; h=subject:to:cc:references:from:message-id:date: mime-version:in-reply-to; bh=4ukKH+Rfob2S3ty/hZNNeFDGu7Yv7DHFNQ53SbqMJ0U=; b=FDthnL/660IOqpl1ZfZNZIw5ZK6seLNwcndBx3q7KMtb8Y5yJcjNhQ6P 2FpjgOjAX6pHt7BqvFYqluEJRrpXMUAGK2HW18yef4EDT3bDkaRcwrUkc 3K4xgILSpFKehRbV8h8WOoCBmsr4p8Ff0DPGT4T1BWXV/Ju7uE/H/npPi E=; X-IronPort-AV: E=Sophos;i="5.39,372,1493683200"; d="scan'208,217";a="653783386" Received: from aer-iport-nat.cisco.com (HELO aer-core-1.cisco.com) ([173.38.203.22]) by aer-iport-3.cisco.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 22 Jun 2017 09:53:05 +0000 Received: from [10.55.221.38] (ams-bclaise-nitro5.cisco.com [10.55.221.38]) by aer-core-1.cisco.com (8.14.5/8.14.5) with ESMTP id v5M9r436023839; Thu, 22 Jun 2017 09:53:04 GMT To: Andy Bierman , Ladislav Lhotka Cc: YANG Doctors , "Joe Clarke (jclarke)" References: <90f1c2cb-8c53-f981-0430-94dc1fa21e56@cisco.com> From: Benoit Claise Message-ID: Date: Thu, 22 Jun 2017 11:53:01 +0200 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.2.0 MIME-Version: 1.0 In-Reply-To: Content-Type: multipart/alternative; boundary="------------D2EBAABAE8FF5C502FFA90B9" Content-Language: en-US Archived-At: Subject: Re: [yang-doctors] Do we need a YANG doctor lunch meeting at the IETF meeting? X-BeenThere: yang-doctors@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: email list of the yang-doctors directorate List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 22 Jun 2017 09:53:18 -0000 This is a multi-part message in MIME format. --------------D2EBAABAE8FF5C502FFA90B9 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Andy, > > > On Wed, Jun 21, 2017 at 2:57 AM, Ladislav Lhotka > wrote: > > Andy Bierman > writes: > > > Hi, > > > > I have a topic that is probably not workable but the issue is > very common. > > > > It would be nice if YANG library repositories were more > consistent and > > official. > > There is currently a ban against packaging YANG modules (e.g., > RPM or > > Debian) > > because of concerns the IETF Trust copyright will be violated > somehow. > > Maybe this could be changed somehow. > > > > The packages could correlate to the YANG catalog, e.g. an > > ietf-routing_1.0.deb package. > > I have been advocating YANG packages for a few years. IMO it is > hopelessly > > futile to > > attempt to manage a device as a random collection of individual > > modules. > > I would support this. I believe it is necessary to sort of > "emancipate" > YANG library, i.e. treat it as metadata that can exist on its own > rather > than plain state data provided by a server, or perhaps as a > module-level > data modelling language. > > Also, I believe it would be extremely helpful to step back and somehow > streamline and simplify all what we have, and in particular integrate > YANG library with datastores and the "use-schema" part of schema mount > into a coherent whole that is (relatively) easy to understand. Not > doing > so and just increasing complexity along several axes has IMO the > potential to kill the YANG business as such. > > > > I think the YANG catalog module attempts to provide off-box metadata. You will get a presentation of it during the OPS-AREA meeting. > The OpenEmbedded project is far superior to anything the IETF could do > on its own, but serves as an existence proof that building blocks can > be managed somehow (layers, feature-groups, packages for yocto). > > Networking equipment is still built with a monolithic mindset, so it > will be difficult for vendors to provide real modularity. The > first-level goal > is to let YANG designers and operators organize YANG APIs at a higher > level than individual YANG modules. > > I think the YANG catalog work is properly motivated and heading > in the right direction to define the packages. Yes. This is the notion of release bundle in draft-openconfig-netmod-model-catalog/ Note that they YANG module behind yangcatalog.org diverged from draft-openconfig-netmod-model-catalog, for good reasons. Joe and I are preparing an IETF draft to explain those. How many YANG doctors will we see in the hackathon ... Regards, Benoit > > > > I already made a concrete initial proposal in Chicago: > > https://www.ietf.org/mail-archive/web/netmod/current/msg18045.html > > > Lada > > > > Andy > > > > > > I have been working on Yocto/bitbake recently and the amount of > high-quality > > tools (see OpenEmbedded) is quite impressive. We could have > something like > > a bitbake recipe > > that describes the YANG requirements for some service or feature > package. > > Vendors could > > append the recipes to optimize for their platforms. Recipes > could point at > > open-source code > > or even vendor libraries that provides instrumentation for a > YANG package. > > We need distributed recipes, not a centralized catalog server, > although > > they could work together. > > > > > > > > > > Andy > > > > > > > > > > > > > > On Tue, Jun 20, 2017 at 9:26 AM, Benoit Claise > > wrote: > > > >> Regards, Benoit > >> > >> _______________________________________________ > >> yang-doctors mailing list > >> yang-doctors@ietf.org > >> https://www.ietf.org/mailman/listinfo/yang-doctors > > >> > > _______________________________________________ > > yang-doctors mailing list > > yang-doctors@ietf.org > > https://www.ietf.org/mailman/listinfo/yang-doctors > > > -- > Ladislav Lhotka > Head, CZ.NIC Labs > PGP Key ID: 0xB8F92B08A9F76C67 > > --------------D2EBAABAE8FF5C502FFA90B9 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: 8bit
Andy,


On Wed, Jun 21, 2017 at 2:57 AM, Ladislav Lhotka <lhotka@nic.cz> wrote:
Andy Bierman <andy@yumaworks.com> writes:

> Hi,
>
> I have a topic that is probably not workable but the issue is very common.
>
> It would be nice if YANG library repositories were more consistent and
> official.
> There is currently a ban against packaging YANG modules (e.g., RPM or
> Debian)
> because of concerns the IETF Trust copyright will be violated somehow.
> Maybe this could be changed somehow.
>
> The packages could correlate to the YANG catalog, e.g. an
> ietf-routing_1.0.deb package.
> I have been advocating YANG packages for a few years. IMO it is hopelessly
> futile to
> attempt to manage a device as a random collection of individual
> modules.

I would support this. I believe it is necessary to sort of "emancipate"
YANG library, i.e. treat it as metadata that can exist on its own rather
than plain state data provided by a server, or perhaps as a module-level
data modelling language.

Also, I believe it would be extremely helpful to step back and somehow
streamline and simplify all what we have, and in particular integrate
YANG library with datastores and the "use-schema" part of schema mount
into a coherent whole that is (relatively) easy to understand. Not doing
so and just increasing complexity along several axes has IMO the
potential to kill the YANG business as such.


I think the YANG catalog module attempts to provide off-box metadata.
You will get a presentation of it during the OPS-AREA meeting.
The OpenEmbedded project is far superior to anything the IETF could do
on its own, but serves as an existence proof that building blocks can
be managed somehow (layers, feature-groups, packages for yocto).

Networking equipment is still built with a monolithic mindset, so it
will be difficult for vendors to provide real modularity. The first-level goal
is to let YANG designers and operators organize YANG APIs at a higher
level than individual YANG modules.

I think the YANG catalog work is properly motivated and heading
in the right direction to define the packages.
Yes.
This is the notion of release bundle in draft-openconfig-netmod-model-catalog/

Note that they YANG module behind yangcatalog.org diverged from draft-openconfig-netmod-model-catalog, for good reasons.
Joe and I are preparing an IETF draft to explain those.

How many YANG doctors will we see in the hackathon ...

Regards, Benoit



I already made a concrete initial proposal in Chicago:

https://www.ietf.org/mail-archive/web/netmod/current/msg18045.html

Lada


Andy
 

>
> I have been working on Yocto/bitbake recently and the amount of high-quality
> tools (see OpenEmbedded) is quite impressive. We could have something like
> a bitbake recipe
> that describes the YANG requirements for some service or feature package.
> Vendors could
> append the recipes to optimize for their platforms. Recipes could point at
> open-source code
> or even vendor libraries that provides instrumentation for a YANG package.
> We need distributed recipes, not a centralized catalog server, although
> they could work together.
>
>
>
>
> Andy
>
>
>
>
>
>
> On Tue, Jun 20, 2017 at 9:26 AM, Benoit Claise <bclaise@cisco.com> wrote:
>
>> Regards, Benoit
>>
>> _______________________________________________
>> yang-doctors mailing list
>> yang-doctors@ietf.org
>> https://www.ietf.org/mailman/listinfo/yang-doctors
>>
> _______________________________________________
> yang-doctors mailing list
> yang-doctors@ietf.org
> https://www.ietf.org/mailman/listinfo/yang-doctors

--
Ladislav Lhotka
Head, CZ.NIC Labs
PGP Key ID: 0xB8F92B08A9F76C67


--------------D2EBAABAE8FF5C502FFA90B9-- From nobody Thu Jun 22 02:57:18 2017 Return-Path: X-Original-To: yang-doctors@ietfa.amsl.com Delivered-To: yang-doctors@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 1000D127342; Thu, 22 Jun 2017 02:57:16 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -14.503 X-Spam-Level: X-Spam-Status: No, score=-14.503 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_HI=-5, RP_MATCHES_RCVD=-0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, USER_IN_DEF_DKIM_WL=-7.5] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=cisco.com Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id NWJf8oo4-_-X; Thu, 22 Jun 2017 02:57:13 -0700 (PDT) Received: from aer-iport-2.cisco.com (aer-iport-2.cisco.com [173.38.203.52]) (using TLSv1.2 with cipher DHE-RSA-SEED-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 24AB0127180; Thu, 22 Jun 2017 02:57:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=@cisco.com; l=2460; q=dns/txt; s=iport; t=1498125433; x=1499335033; h=subject:to:cc:references:from:message-id:date: mime-version:in-reply-to:content-transfer-encoding; bh=LZY6v7NBeAQzqIHaFT2J1/8odTCSpwah5rSzZltdNBY=; b=aICGwl3e3NR8TG+cdu2SEmM6VOSvy5fiscVSR8L2qJCGFSvljjUIym/3 faI7rmlH0+juo9IiNm5s73NkGNhS5gGkonyIUhVGS3yBw5sxbWIHU3GCe kIn+bcHYXQJLempxipqcYCxHL9bjTfvZCPr38uVwWl6H324p4XBFCjNPQ k=; X-IronPort-AV: E=Sophos;i="5.39,372,1493683200"; d="scan'208";a="652761858" Received: from aer-iport-nat.cisco.com (HELO aer-core-4.cisco.com) ([173.38.203.22]) by aer-iport-2.cisco.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 22 Jun 2017 09:57:11 +0000 Received: from [10.55.221.38] (ams-bclaise-nitro5.cisco.com [10.55.221.38]) by aer-core-4.cisco.com (8.14.5/8.14.5) with ESMTP id v5M9vB2a003435; Thu, 22 Jun 2017 09:57:11 GMT To: Ladislav Lhotka , Kent Watsen Cc: Andy Bierman , Benoit Claise , "draft-ietf-netmod-revised-datastores@ietf.org" , "Joe Clarke (jclarke)" References: <90f1c2cb-8c53-f981-0430-94dc1fa21e56@cisco.com> <9427148F-4A84-45F9-A006-31699F536F8A@juniper.net> <7D5EC759-2676-4DC4-8305-91D7F8757962@nic.cz> From: Benoit Claise Message-ID: <94dea28e-5d5d-e245-fddf-4ff6a4ffa3cd@cisco.com> Date: Thu, 22 Jun 2017 11:57:07 +0200 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.2.0 MIME-Version: 1.0 In-Reply-To: <7D5EC759-2676-4DC4-8305-91D7F8757962@nic.cz> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Content-Language: en-US Archived-At: Subject: Re: [yang-doctors] Do we need a YANG doctor lunch meeting at the IETF meeting? X-BeenThere: yang-doctors@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: email list of the yang-doctors directorate List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 22 Jun 2017 09:57:16 -0000 On 6/21/2017 5:19 PM, Ladislav Lhotka wrote: >> On 21 Jun 2017, at 16:09, Kent Watsen wrote: >> >> >> >>> I would support this. I believe it is necessary to sort of "emancipate" >>> YANG library, i.e. treat it as metadata that can exist on its own rather >>> than plain state data provided by a server, or perhaps as a module-level >>> data modelling language. >> I don't follow, how can this metadata be independent of a server? Are you >> thinking that it may be useful for rc:yang-data? > YANG modules can also be served by NETCONF/RESTCONF servers, but I think we understand they exist independently - they are published in RFCs, processed by tools etc. So, the information provided by (extended) YANG library could be thought of as a specification of an entire data model consisting of a number of YANG modules. It too could be published etc. > > I think what Andy proposed is more about conformance requirements, which is probably a little bit different - e.g., you want to specify a range of module revisions that are compatible. What I have in mind is more a specification of a concrete data model including any number of modules in specific revisions but also datastores and schema-mount info. So tools can eventually construct data models for all datastores, no matter how they are constructed. both make sense IMO. Regards, B. > >> >>> Also, I believe it would be extremely helpful to step back and somehow >>> streamline and simplify all what we have, and in particular integrate >>> YANG library with datastores and the "use-schema" part of schema mount >>> into a coherent whole that is (relatively) easy to understand. Not doing >>> so and just increasing complexity along several axes has IMO the >>> potential to kill the YANG business as such. >>> >>> I already made a concrete initial proposal in Chicago: >>> >>> https://www.ietf.org/mail-archive/web/netmod/current/msg18045.html >> This is a good proposal. It is also something that the NMDA-authors have >> been iterating towards as well: >> - a list of all modules supported by the server (regardless of datastore) >> - a list of module-sets (what you call "schema") that has leafrefs to modules >> - a list of datastores that has leafrefs to module-sets > Yes, exactly. > > Thanks, Lada > >> Kent >> >> >> >> > -- > Ladislav Lhotka > Head, CZ.NIC Labs > PGP Key ID: 0xB8F92B08A9F76C67 > > > > > > . > From nobody Thu Jun 22 03:03:27 2017 Return-Path: X-Original-To: yang-doctors@ietfa.amsl.com Delivered-To: yang-doctors@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 44E90127342; Thu, 22 Jun 2017 03:03:25 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -14.503 X-Spam-Level: X-Spam-Status: No, score=-14.503 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_HI=-5, RP_MATCHES_RCVD=-0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, USER_IN_DEF_DKIM_WL=-7.5] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=cisco.com Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id vydiB9iNaFDn; Thu, 22 Jun 2017 03:03:22 -0700 (PDT) Received: from aer-iport-3.cisco.com (aer-iport-3.cisco.com [173.38.203.53]) (using TLSv1.2 with cipher DHE-RSA-SEED-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 08F35128B88; Thu, 22 Jun 2017 03:03:21 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=@cisco.com; l=1507; q=dns/txt; s=iport; t=1498125802; x=1499335402; h=subject:to:references:from:message-id:date:mime-version: in-reply-to:content-transfer-encoding; bh=gKJKHZVR6XkVsJZWiRBTMbZNCyxG646fXtCxCdZ2oH4=; b=HQRsGpMTk8IRz5OP/j1kniWZtTEvsnxnjW7INGIyY25Lr2NCAy51ZKfI tBJrg6TRghm+9ibx9iIERaeFtklIyikKIwreLSRiJoc/581rSVlEpaqUH smXDmeSPeExF9bN/CLeQq55FpVZV9qzhIr5FxaI9QX3lw4M03MHedy2SY M=; X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: =?us-ascii?q?A0COAgBQlUtZ/xbLJq1dGQEBAQEBAQEBA?= =?us-ascii?q?QEBBwEBAQEBhDqBDYNsiwyQSSKVeIIRLIV4AoM9FgECAQEBAQEBAWsohRkBBSM?= =?us-ascii?q?VUQsOCgICJgICVwYBDAYCAQGKKBCrfYImi2QBAQEBAQEBAQEBAQEBAQEBAQEbB?= =?us-ascii?q?YELhWKBYCsLgm6HfYJCHwEEnmOHM4wvixyGc4xMiEomCieBCjAhCBsVh1o+Nol?= =?us-ascii?q?dAQEB?= X-IronPort-AV: E=Sophos;i="5.39,372,1493683200"; d="scan'208";a="653783664" Received: from aer-iport-nat.cisco.com (HELO aer-core-4.cisco.com) ([173.38.203.22]) by aer-iport-3.cisco.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 22 Jun 2017 10:03:18 +0000 Received: from [10.55.221.38] (ams-bclaise-nitro5.cisco.com [10.55.221.38]) by aer-core-4.cisco.com (8.14.5/8.14.5) with ESMTP id v5MA3HbR004840; Thu, 22 Jun 2017 10:03:17 GMT To: Mahesh Jethanandani , draft-dsdt-nmda-guidelines@ietf.org, YANG Doctors References: <149564066257.28529.12761629961042171907@ietfa.amsl.com> <5d4541d3-9426-787d-e02b-9c2dbc3a5400@cisco.com> <20170621203718.GA919@elstar.local> From: Benoit Claise Message-ID: Date: Thu, 22 Jun 2017 12:03:08 +0200 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.2.0 MIME-Version: 1.0 In-Reply-To: <20170621203718.GA919@elstar.local> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Content-Language: en-US Archived-At: Subject: Re: [yang-doctors] [Teas] Yangdoctors last call review of draft-ietf-teas-yang-te-topo-08 X-BeenThere: yang-doctors@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: email list of the yang-doctors directorate List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 22 Jun 2017 10:03:25 -0000 On 6/21/2017 10:37 PM, Juergen Schoenwaelder wrote: > On Wed, Jun 21, 2017 at 12:23:09PM -0700, Mahesh Jethanandani wrote: >>> On Jun 21, 2017, at 2:33 AM, Robert Wilton wrote: >>> >>>>> It is neither a top level split, as is the case with existing IETF >>>>> models, >>>> [Xufeng] We could not do top level split because the base I2RS network topology model (https://tools.ietf.org/html/draft-ietf-i2rs-yang-network-topo-12 ) that we augment does not have the top-level split (for its own reasons). >> What is our recommendation to folks who have dependency on other models that have not redone their models per the NDMA guidelines? >> > Since the teas topology model depends on the i2rs topology model, they > better work this out together. Because of the normative reference, the > teas model won't be published before the i2rs model is ready. The i2rs > topology model does not seem to have been updated since March 1st. Some movement on that front. https://datatracker.ietf.org/doc/draft-ietf-i2rs-yang-l3-topology/ B. > I > assume this is primarily a coordination issue to resolve. > > /js > > PS: I have no clue which model is following NDMA guidelines and if not > for which reasons. Note that the basic idea behind NMDA is to > avoid top-level splits. > > PS: I think Martin was YANG doctor for the i2rs topology model; he > might provide a better informed answer. > From nobody Thu Jun 22 03:12:01 2017 Return-Path: X-Original-To: yang-doctors@ietfa.amsl.com Delivered-To: yang-doctors@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 870D51293F2; Thu, 22 Jun 2017 03:11:52 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -14.503 X-Spam-Level: X-Spam-Status: No, score=-14.503 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_HI=-5, RP_MATCHES_RCVD=-0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, USER_IN_DEF_DKIM_WL=-7.5] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=cisco.com Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Ikab_ROoE8XI; Thu, 22 Jun 2017 03:11:50 -0700 (PDT) Received: from aer-iport-1.cisco.com (aer-iport-1.cisco.com [173.38.203.51]) (using TLSv1.2 with cipher DHE-RSA-SEED-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 96C80128D64; Thu, 22 Jun 2017 03:11:49 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=@cisco.com; l=8754; q=dns/txt; s=iport; t=1498126310; x=1499335910; h=subject:to:cc:references:from:message-id:date: mime-version:in-reply-to:content-transfer-encoding; bh=3a4A7y3aty+5liNIrUNcCShb8lEaC6J8xFZ7QfRbv8M=; b=Jj7PugFFJiClfjB7I1NKfh1w0iGj1/A+KVYyAeIbZKXx7PXACemn2Lm7 Qwr0wPagZ7uI1YdTLAoZTNhSUsP/WsUOjk0/JcMFgpfPE7LJ30lgGCSQI wAZj/dml94B2FmaB60w/XhDs/rGk11FFL3jli+Okch5lya5L9zORoWZtR 4=; X-IronPort-AV: E=Sophos;i="5.39,372,1493683200"; d="scan'208";a="695327914" Received: from aer-iport-nat.cisco.com (HELO aer-core-2.cisco.com) ([173.38.203.22]) by aer-iport-1.cisco.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 22 Jun 2017 10:11:48 +0000 Received: from [10.55.221.38] (ams-bclaise-nitro5.cisco.com [10.55.221.38]) by aer-core-2.cisco.com (8.14.5/8.14.5) with ESMTP id v5MABliK029933; Thu, 22 Jun 2017 10:11:47 GMT To: Robert Wilton , Xufeng Liu , Mahesh Jethanandani , "yang-doctors@ietf.org" Cc: "ietf@ietf.org" , "teas@ietf.org" , "draft-ietf-teas-yang-te-topo.all@ietf.org" References: <149564066257.28529.12761629961042171907@ietfa.amsl.com> <5d4541d3-9426-787d-e02b-9c2dbc3a5400@cisco.com> <3a1c319f-0255-b8ee-ecbd-739568c1dc7f@cisco.com> From: Benoit Claise Message-ID: <1ab3a0d8-de3e-1d7c-2967-97b74b1c68a5@cisco.com> Date: Thu, 22 Jun 2017 12:11:43 +0200 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.2.0 MIME-Version: 1.0 In-Reply-To: <3a1c319f-0255-b8ee-ecbd-739568c1dc7f@cisco.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Content-Language: en-US Archived-At: Subject: Re: [yang-doctors] [Teas] Yangdoctors last call review of draft-ietf-teas-yang-te-topo-08 X-BeenThere: yang-doctors@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: email list of the yang-doctors directorate List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 22 Jun 2017 10:11:53 -0000 Dear draft-ietf-teas-yang-te-topo authors, > Hi Xufeng, > > OK, by tooling, I don't mean the pyang plugins that I have been > working on to convert between different types of models. As you > aware, the TE YANG models can easily be converted to NMDA style since > I have already done it > (https://github.com/rgwilton/ietf-models-to-combined). > > My comment actually relates to the fact the structure used by TE YANG > modules don't match any other YANG modules - they are using their own > unique style of structure. This is an important issue to resolve. > > Today, there are three common styles of modules: > (1) IETF style split config/state trees (e.g. ietf-interfaces). > (2) IETF NMDA style combined config/state trees (i.e. where all IETF > modules are heading to). > (3) OpenConfig style modules with the config/state containers > immediately above the config leaves. > > Tooling is likely to be optimized to work with these model structures, > but the TE modules do not fit into any of the three styles above. > They are a yet another OpenConfig-like style, but that is different > enough that tooling that is designed to work with OpenConfig style > YANG modules would likely not work with the TE YANG modules. > > Specifically, for clients that expecting to work with an OpenConfig > style YANG module, then if it knows the path to config leaf X, then > they would expect the applied config value to be available at the path > "../state/X". But, this doesn't hold for the structure being used in > the TE YANG models. > > I believe strongly that the models being produced by organizations > should be structures in a consistent way, hence why I think that the > published standard version of the TE YANG modules should immediately > align to the NMDA style. Agreed. Here is the OPS and RTG AD message: https://www.ietf.org/mail-archive/web/netmod/current/msg18252.html I understand that the I2RS topology YANG modules will be improved to the NMDA style. Regards, Benoit > > Thanks, > Rob > > > On 22/06/2017 04:16, Xufeng Liu wrote: >> Hi Rob, >> >> While the tooling is very nice to have, especially for writing new >> models or converting models, we do not have to use it for every >> model. It seems not necessary to use the tooling on this model for >> now. We already know that we can manually convert it to NMDA style if >> needed. >> >> Thanks, >> - Xufeng >> >>> -----Original Message----- >>> From: Robert Wilton [mailto:rwilton@cisco.com] >>> Sent: Wednesday, June 21, 2017 5:34 AM >>> To: Xufeng Liu ; Mahesh Jethanandani >>> ; yang-doctors@ietf.org >>> Cc: ietf@ietf.org; teas@ietf.org; >>> draft-ietf-teas-yang-te-topo.all@ietf.org >>> Subject: Re: [Teas] Yangdoctors last call review of >>> draft-ietf-teas-yang-te-topo- >>> 08 >>> >>> Hi Xufeng, >>> >>> On 12/06/2017 22:28, Xufeng Liu wrote: >>>> Hi Mahesh, >>>> >>>> Thank you much for the review. We have submitted an updated draft >>> (https://tools.ietf.org/html/draft-ietf-teas-yang-te-topo-09) to >>> address these >>> issues. More detailed explanations are put below inline. >>>> If the responses and updates are satisfactory, we are ready for the >>>> last call. >>>> >>>> Best regards, >>>> - Xufeng >>>> >>>>> -----Original Message----- >>>>> From: Mahesh Jethanandani [mailto:mjethanandani@gmail.com] >>>>> Sent: Wednesday, May 24, 2017 11:44 AM >>>>> To: yang-doctors@ietf.org >>>>> Cc: ietf@ietf.org; teas@ietf.org; >>>>> draft-ietf-teas-yang-te-topo.all@ietf.org >>>>> Subject: Yangdoctors last call review of >>>>> draft-ietf-teas-yang-te-topo-08 >>>>> >>>>> Reviewer: Mahesh Jethanandani >>>>> Review result: Ready with Issues >>>>> >>>>> Document reviewed: draft-ietf-teas-yang-te-topo-08 >>>>> >>>>> Status: Ready with Issues >>>>> >>>>> I am not an expert in Traffic Engineering. This review is looking at >>>>> the draft from a YANG perspective. With that said, I have marked >>>>> it as “Ready >>> with Issues” >>>>> because of some of the points discussed below. >>>>> >>>>> Summary: >>>>> >>>>> This document defines a YANG data model for representing, retrieving >>>>> and manipulating TE Topologies. The model serves as a base model that >>>>> other technology specific TE Topology models can augment. >>>>> >>>>> Comments: >>>>> >>>>> Almost all the containers in the model are presence containers. Is >>>>> there a reason why they have to be presence containers? Note, that >>>>> presence containers are containers whose existence itself represents >>>>> configuration data. What particular configuration data is each >>>>> container >>> representing in itself? >>>> [Xufeng] Containers that use “presence” are: >>>> - Container “underlay” >>>> o We have changed 13 occurrences of such containers to be not >>> presence container. >>>> - Container “te” under augmentation >>>> o To indicate that “TE” is enabled (configuration data) >>>> o Also used to do augmentation. The “presence” statement can >>> prevent the mandatory child from affecting augmented base model. >>>> - /nw:networks/nw:network/nw:network-types/te-topology! >>>> o A mechanism required by I2RS topology model to specify the >>> topology type. >>>>> It is difficult to co-relate the diagram with the model itself >>>>> because of different terms being used to define different parts of >>>>> the model. >>>>> There is “TE Topology Model” and then there is “Generic TE Topology >>> Model”. >>>>> Are these one and the same models? If so, a common term for both of >>>>> them would be helpful. >>>> [Xufeng] Yes. These two terms are the same. Figure 12, Figure 13, >>>> and relevant >>> descriptions have been updated to make the document consistent. >>>>> There is extensive use of groupings in the document. However, not all >>>>> instances of groupings are used multiple number of times. Where they >>>>> are not being repeated, it would be better to move the grouping >>>>> directly where the uses statement resides. Case in point the grouping >>> connectivity-label-restriction-list. >>>> [Xufeng] We have removed the following groupings >>>> te-link-augment >>>> te-node-augment >>>> te-termination-point-augment >>>> te-topologies-augment >>>> te-topology-augment >>>> te-link-state-underlay-attributes >>>> te-node-state-derived-notification >>>> te-topology-type >>>> >>>> The remaining groupings have been kept so that we can: >>>> - Share the groupings in this model >>>> - Prepare to be shared by a model augmenting this model >>>> - Prevent a grouping or configuration section from being too long >>>> - Improve readability >>>> >>>>> The split between config and state containers does not seem to follow >>>>> any particular pattern. >>>> [Xufeng] The pattern is clear: >>>> For each manageable entity (object), there is a config container >>>> and state >>> container. The configurable properties go into the config container >>> and state >>> properties go into the state container. Such objects are identified >>> by a list item >>> or a presence container so that the “create”, “delete”, and “modify” >>> operations >>> can be performed on them. The non-presence containers do not represent >>> configuration data so they do not introduce such objects. >>>>> It is neither a top level split, as is the case with existing IETF >>>>> models, >>>> [Xufeng] We could not do top level split because the base I2RS network >>> topology model >>> (https://tools.ietf.org/html/draft-ietf-i2rs-yang-network-topo- >>> 12) that we augment does not have the top-level split (for its own >>> reasons). >>>>> nor do they follow the OpenConfig style of splitting config and state >>>>> under each relevant leaf, >>>> [Xufeng] The pattern is consistent with this style in principle, >>>> with some >>> adjustments to fit to our multiple levels of hierarchy. >>> This is effectively a new forth style of YANG models that is not >>> consistent with >>> any of the three existing styles, i.e.: >>> - Current IETF config/state split model style >>> - NMDA combined config/state tree >>> - OpenConfig split config/state containers immediately above the >>> config true >>> leaves. >>> >>> Tooling that it designed to work with OpenConfig models will need >>> customization to work with these TE models because the config/state >>> containers will not be where the tooling expects them to be. >>> >>> Thanks, >>> Rob > > . > From nobody Thu Jun 22 05:51:09 2017 Return-Path: X-Original-To: yang-doctors@ietfa.amsl.com Delivered-To: yang-doctors@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 5ED4C124D68 for ; Thu, 22 Jun 2017 05:51:07 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.022 X-Spam-Level: X-Spam-Status: No, score=-2.022 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=juniper.net Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Vaa1SG8k301U for ; Thu, 22 Jun 2017 05:51:05 -0700 (PDT) Received: from NAM03-BY2-obe.outbound.protection.outlook.com (mail-by2nam03on0115.outbound.protection.outlook.com [104.47.42.115]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id BC3ED1275C5 for ; Thu, 22 Jun 2017 05:51:05 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=juniper.net; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version; bh=5jVuOlHsZrrFvD0NoQueFBRKfeezsYMeWFrWIDwYE0c=; b=iGNbt8pRHKbKs40Ud0pFqW/B1MEDzm7D/pWL9cs6yW3UcPviustojsQz3juWPmdn9lO2fw34KmSjqXET7lNeMlUUZPTPw6MJGAKmrsHtP7UbSjNhmi5qcKTroH8OrE+nOiesdFUnfp84vhzWJzYrS6QFKl7MB6lVJrz7m4g4RQ8= Received: from BN3PR0501MB1442.namprd05.prod.outlook.com (10.160.117.151) by BN3PR0501MB1506.namprd05.prod.outlook.com (10.160.117.26) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1199.6; Thu, 22 Jun 2017 12:51:04 +0000 Received: from BN3PR0501MB1442.namprd05.prod.outlook.com ([10.160.117.151]) by BN3PR0501MB1442.namprd05.prod.outlook.com ([10.160.117.151]) with mapi id 15.01.1199.016; Thu, 22 Jun 2017 12:51:05 +0000 From: Kent Watsen To: Benoit Claise CC: Andy Bierman , Ladislav Lhotka , "YANG Doctors" , "Joe Clarke (jclarke)" Thread-Topic: [yang-doctors] Do we need a YANG doctor lunch meeting at the IETF meeting? 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X-BeenThere: yang-doctors@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: email list of the yang-doctors directorate List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 22 Jun 2017 12:51:07 -0000 > How many YANG doctors will we see in the hackathon ... I'll be there for the hackathon.=20 K.=20 From nobody Thu Jun 22 06:05:13 2017 Return-Path: X-Original-To: yang-doctors@ietfa.amsl.com Delivered-To: yang-doctors@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id AF4001293EB for ; Thu, 22 Jun 2017 06:05:11 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -14.523 X-Spam-Level: X-Spam-Status: No, score=-14.523 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_HI=-5, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, RP_MATCHES_RCVD=-0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, USER_IN_DEF_DKIM_WL=-7.5] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=cisco.com Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id I2dGZva_ANRn for ; Thu, 22 Jun 2017 06:05:09 -0700 (PDT) Received: from alln-iport-1.cisco.com (alln-iport-1.cisco.com [173.37.142.88]) (using TLSv1.2 with cipher DHE-RSA-SEED-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id E3347124D68 for ; Thu, 22 Jun 2017 06:05:08 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=@cisco.com; l=441; q=dns/txt; s=iport; t=1498136708; x=1499346308; h=from:to:cc:subject:date:message-id:references: in-reply-to:content-id:content-transfer-encoding: mime-version; bh=XRZi9YwbJd1IKSopfR076U3LGZUGiZylm8TC9jwtHNs=; b=LgXTwlnnbsZ3tVYgkagzB6bMG0ICBgODaIPbaH9B9Qx3FnfF32n4iNke TbQaOmgTMvpyoF47Rz1o/rDgOwN2eQsLtsJPgfeANLubk6twS677R7j9S gi4WOjpkPgqK+OuHfJFDdgObGofanNjAmCEgtN1XRF9fa30kr0UkESu+9 I=; X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: =?us-ascii?q?A0CYAABEv0tZ/4kNJK1dGQEBAQEBAQEBA?= =?us-ascii?q?QEBBwEBAQEBg1higQ0HjX6RYJV4ghEhC4V4AoJ/PxgBAgEBAQEBAQFrKIUYAQE?= =?us-ascii?q?BAQIBAQE4NAsFCwIBCA4KHhAnCyUCBA4FiiQIEK4Ti2YBAQEBAQEBAQEBAQEBA?= =?us-ascii?q?QEBAQEBAQEYBYMng0yCC4J5iC2CEh8BBJ5jApNggXEBkB2VFQEfOIEKdBVJEgG?= =?us-ascii?q?GfHaIUIENAQEB?= X-IronPort-AV: E=Sophos;i="5.39,373,1493683200"; d="scan'208";a="441224435" Received: from alln-core-4.cisco.com ([173.36.13.137]) by alln-iport-1.cisco.com with ESMTP/TLS/DHE-RSA-AES256-SHA; 22 Jun 2017 13:05:08 +0000 Received: from XCH-RTP-006.cisco.com (xch-rtp-006.cisco.com [64.101.220.146]) by alln-core-4.cisco.com (8.14.5/8.14.5) with ESMTP id v5MD57B4016988 (version=TLSv1/SSLv3 cipher=AES256-SHA bits=256 verify=FAIL); Thu, 22 Jun 2017 13:05:08 GMT Received: from xch-rtp-019.cisco.com (64.101.220.159) by XCH-RTP-006.cisco.com (64.101.220.146) with Microsoft SMTP Server (TLS) id 15.0.1210.3; Thu, 22 Jun 2017 09:05:07 -0400 Received: from xch-rtp-019.cisco.com ([64.101.220.159]) by XCH-RTP-019.cisco.com ([64.101.220.159]) with mapi id 15.00.1210.000; Thu, 22 Jun 2017 09:05:07 -0400 From: "Giles Heron (giheron)" To: Kent Watsen CC: "Benoit Claise (bclaise)" , YANG Doctors , "Joe Clarke (jclarke)" Thread-Topic: [yang-doctors] Do we need a YANG doctor lunch meeting at the IETF meeting? Thread-Index: AQHS6eH12u8fB7wn/0ex/kru61Ac5aIumeAAgAC+7YCAAEdHAIABSeGAgAAxvwCAAAPsAA== Date: Thu, 22 Jun 2017 13:05:07 +0000 Message-ID: <90DB5C9E-C2BD-45EB-89EA-0C91A75FFB3D@cisco.com> References: <90f1c2cb-8c53-f981-0430-94dc1fa21e56@cisco.com> In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-messagesentrepresentingtype: 1 x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.60.71.148] Content-Type: text/plain; charset="us-ascii" Content-ID: <73B0AF750A0EA642A513B7F8569D094D@emea.cisco.com> Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Archived-At: Subject: Re: [yang-doctors] Do we need a YANG doctor lunch meeting at the IETF meeting? X-BeenThere: yang-doctors@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: email list of the yang-doctors directorate List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 22 Jun 2017 13:05:12 -0000 Likewise will try to go over for that (need to check budget etc.) > On 22 Jun 2017, at 13:51, Kent Watsen wrote: >=20 >=20 >=20 >> How many YANG doctors will we see in the hackathon ... >=20 > I'll be there for the hackathon.=20 >=20 > K.=20 >=20 > _______________________________________________ > yang-doctors mailing list > yang-doctors@ietf.org > https://www.ietf.org/mailman/listinfo/yang-doctors From nobody Thu Jun 22 06:44:31 2017 Return-Path: X-Original-To: yang-doctors@ietfa.amsl.com Delivered-To: yang-doctors@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id A41F41292AE; Thu, 22 Jun 2017 06:44:10 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO 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header.d=cisco.com Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id fVLY2795PERF for ; Thu, 22 Jun 2017 06:46:36 -0700 (PDT) Received: from aer-iport-2.cisco.com (aer-iport-2.cisco.com [173.38.203.52]) (using TLSv1.2 with cipher DHE-RSA-SEED-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 17A18129465 for ; Thu, 22 Jun 2017 06:46:35 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=@cisco.com; l=3052; q=dns/txt; s=iport; t=1498139196; x=1499348796; h=subject:to:cc:references:from:message-id:date: mime-version:in-reply-to:content-transfer-encoding; bh=KjKxEDGlS6EySM60sgI1VDFmTlxhADq260/JweDHgG8=; b=CH+DFyR/YfB2F1DhzrDGNNpXJgP9pTiUWJIV/knVtsYP1Bt0eG1tRGQr Z1B/OJY5mWzEiiVFnt/ATV+E+4HHEPEYFtZLK/0Wff6njMHmop1Nh/wsf kkqdOijZNCyn1ApEkbHbSRka84dOrzwlp1QgxQGYaD9ryqasS5qFRxn8z g=; X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: =?us-ascii?q?A0ATAQDpyEtZ/xbLJq1dGgEBAQECAQEBA?= =?us-ascii?q?QgBAQEBiTOKGXOmZYIRhiQCgz4YAQIBAQEBAQEBayiFGQYjDwEFQRALDgwCJgI?= =?us-ascii?q?CVwYBDAgBAYooq32CJotmAQEBAQEBAQEBAQEBAQEBAQEBIIELghyDTIILgnmEO?= =?us-ascii?q?xIBgy+CYQEEnmOTYoschnOMTIhKHzh/CzAhCBsVh1o+h2OCMAEBAQ?= X-IronPort-AV: E=Sophos;i="5.39,373,1493683200"; d="scan'208";a="652766830" Received: from aer-iport-nat.cisco.com (HELO aer-core-4.cisco.com) ([173.38.203.22]) by aer-iport-2.cisco.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 22 Jun 2017 13:46:33 +0000 Received: from [10.55.221.38] (ams-bclaise-nitro5.cisco.com [10.55.221.38]) by aer-core-4.cisco.com (8.14.5/8.14.5) with ESMTP id v5MDkXJr010492; Thu, 22 Jun 2017 13:46:33 GMT To: Dean Bogdanovic , draft-ietf-mpls-ldp-yang-01@ietf.org Cc: Mahesh Jethanandani , YANG Doctors References: <15E2194D-6769-4AEB-ACE6-E2B9C05AF9E3@gmail.com> From: Benoit Claise Message-ID: <1f603715-5c63-87ea-a3cb-d57b05fe04b7@cisco.com> Date: Thu, 22 Jun 2017 15:46:33 +0200 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.2.0 MIME-Version: 1.0 In-Reply-To: <15E2194D-6769-4AEB-ACE6-E2B9C05AF9E3@gmail.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Content-Language: en-US Archived-At: Subject: Re: [yang-doctors] Review of the draft-ietf-mpls-ldp-yang-01 X-BeenThere: yang-doctors@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: email list of the yang-doctors directorate List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 22 Jun 2017 13:46:38 -0000 Thanks Dean, Including the yang-doctors. Regards, B. > Hi authors, > > sorry for slow reply, but have been busy with few other things and didn’t have time to look into the draft. > > have couple of questions before I finish the draft and we can do that via phone or email > > In general, I like you design with base and extended model. Think it is a very good approach in modeling and maybe I as author should have taken a similar approach when modeling ACLs. > > But there is a bit of confusion for me > > Why are IPv4 and v6 separated? Why is IPv6 missing from the base model? The RFC 5036 is specifying both AF is the document. And you are mentioning that RFC 5036 is used for base model. Wy having same hierarchy but different namespaces? > > 4.1.1. Base > > 1. should 'discovery' be under 'global'? > > Especially the 'interfaces' section. 'Interfaces' are directly attached to the device. Compared to peers which is the remote end (either that be directly connected peers, or peers that are more than 1 hop away). If peers are not under global, it seems that 'discovery' and especially 'discovery/interfaces' should not be under 'global'. > > This applies to 'discovery/targeted' as well. > > > module: ietf-mpls-ldp > augment /rt:routing/rt:control-plane-protocols: > +--rw mpls-ldp! > +--rw global > | +--rw config > | | +--rw capability > | | +--rw graceful-restart > | | | +--rw enable? boolean > | | | +--rw reconnect-time? uint16 > | | | +--rw recovery-time? uint16 > | | | +--rw forwarding-holdtime? uint16 > | | +--rw lsr-id? yang:dotted-quad > | +--rw address-families > | | +--rw ipv4 > | | +--rw config > | | +--rw enable? boolean > | | +--rw label-policy > | | +--rw advertise > | | +--rw egress-explicit-null > | | +--rw enable? boolean > | +--rw discovery > | +--rw interfaces > | | +--rw config > | | | +--rw hello-holdtime? uint16 > | | | +--rw hello-interval? uint16 > | | +--rw interface* [interface] > | | +--rw interface mpls-interface-ref > | | +--rw address-families > | | +--rw ipv4 > | | +--rw config > | | +--rw enable? boolean > > > > 9.1 Base > > leaf peer-ldp-id { > type yang:dotted-quad; > description "Peer LDP ID."; > } > > Nit: "peer-" prefix needed? > > Is this value different from peer LSR ID? > > In general, I believe you are on the right path, but I don’t have deep LDP knowledge, so can’t understand some of the nuances that you might have wanted to address > > Cheers, > > Dean > > > . > From nobody Thu Jun 22 08:04:40 2017 Return-Path: X-Original-To: yang-doctors@ietfa.amsl.com Delivered-To: yang-doctors@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 38B24129AB7; Thu, 22 Jun 2017 08:04:38 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -14.503 X-Spam-Level: X-Spam-Status: No, score=-14.503 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_HI=-5, RP_MATCHES_RCVD=-0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, USER_IN_DEF_DKIM_WL=-7.5] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=cisco.com Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id dTg4nq2gblFV; Thu, 22 Jun 2017 08:04:36 -0700 (PDT) Received: from aer-iport-4.cisco.com (aer-iport-4.cisco.com [173.38.203.54]) (using TLSv1.2 with cipher DHE-RSA-SEED-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 13BD2129A9F; Thu, 22 Jun 2017 08:04:35 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=@cisco.com; l=3050; q=dns/txt; s=iport; t=1498143876; x=1499353476; h=subject:to:cc:references:from:message-id:date: mime-version:in-reply-to:content-transfer-encoding; bh=YmjjRlOjYX4tQ1rhkz6Ti7ai02F53wi1rtoiMBmoLRQ=; b=C5pZS/Qbq5rOc2TO0Na3CYfDNeRDNNxHaxNqQElLYLwrns0+vQt/Gw2O ObzDXi9QKZzXy2l7RN02L0e1JOlOdAXSOCDS7kMJWsor0KJc6xYHCsYfJ p9tpCSKc3MXxnJkRAuirV2NZ7WPL3G7Pmgn6zzrwgcVXwGjDgw4pe+0rJ 0=; X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: =?us-ascii?q?A0BmAQDC20tZ/xbLJq1dGgEBAQECAQEBA?= =?us-ascii?q?QgBAQEBiTOKGXOQS5YaghGGJAKDPxgBAgEBAQEBAQFrKIUZBiMPAQVBEAsODAI?= =?us-ascii?q?mAgJXBgEMCAEBiiisDIImi2gBAQEBAQEBAQEBAQEBAQEBAQEggQuCHINMggsLg?= =?us-ascii?q?m6EOxIBgy+CYQEEnmOTYoschnOMTIhKHzh/CzAhCBsVh1o+h2OCMAEBAQ?= X-IronPort-AV: E=Sophos;i="5.39,373,1493683200"; d="scan'208";a="655609975" Received: from aer-iport-nat.cisco.com (HELO aer-core-2.cisco.com) ([173.38.203.22]) by aer-iport-4.cisco.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 22 Jun 2017 15:04:34 +0000 Received: from [10.55.221.38] (ams-bclaise-nitro5.cisco.com [10.55.221.38]) by aer-core-2.cisco.com (8.14.5/8.14.5) with ESMTP id v5MF4Xrr018763; Thu, 22 Jun 2017 15:04:33 GMT To: Dean Bogdanovic , draft-ietf-mpls-ldp-yang@ietf.org Cc: Mahesh Jethanandani , YANG Doctors References: <15E2194D-6769-4AEB-ACE6-E2B9C05AF9E3@gmail.com> From: Benoit Claise Message-ID: Date: Thu, 22 Jun 2017 17:04:33 +0200 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.2.0 MIME-Version: 1.0 In-Reply-To: <15E2194D-6769-4AEB-ACE6-E2B9C05AF9E3@gmail.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Content-Language: en-US Archived-At: Subject: Re: [yang-doctors] Review of the draft-ietf-mpls-ldp-yang-01 X-BeenThere: yang-doctors@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: email list of the yang-doctors directorate List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 22 Jun 2017 15:04:38 -0000 Including the right mailer. Thanks Dean. Regards, B. > Hi authors, > > sorry for slow reply, but have been busy with few other things and didn’t have time to look into the draft. > > have couple of questions before I finish the draft and we can do that via phone or email > > In general, I like you design with base and extended model. Think it is a very good approach in modeling and maybe I as author should have taken a similar approach when modeling ACLs. > > But there is a bit of confusion for me > > Why are IPv4 and v6 separated? Why is IPv6 missing from the base model? The RFC 5036 is specifying both AF is the document. And you are mentioning that RFC 5036 is used for base model. Wy having same hierarchy but different namespaces? > > 4.1.1. Base > > 1. should 'discovery' be under 'global'? > > Especially the 'interfaces' section. 'Interfaces' are directly attached to the device. Compared to peers which is the remote end (either that be directly connected peers, or peers that are more than 1 hop away). If peers are not under global, it seems that 'discovery' and especially 'discovery/interfaces' should not be under 'global'. > > This applies to 'discovery/targeted' as well. > > > module: ietf-mpls-ldp > augment /rt:routing/rt:control-plane-protocols: > +--rw mpls-ldp! > +--rw global > | +--rw config > | | +--rw capability > | | +--rw graceful-restart > | | | +--rw enable? boolean > | | | +--rw reconnect-time? uint16 > | | | +--rw recovery-time? uint16 > | | | +--rw forwarding-holdtime? uint16 > | | +--rw lsr-id? yang:dotted-quad > | +--rw address-families > | | +--rw ipv4 > | | +--rw config > | | +--rw enable? boolean > | | +--rw label-policy > | | +--rw advertise > | | +--rw egress-explicit-null > | | +--rw enable? boolean > | +--rw discovery > | +--rw interfaces > | | +--rw config > | | | +--rw hello-holdtime? uint16 > | | | +--rw hello-interval? uint16 > | | +--rw interface* [interface] > | | +--rw interface mpls-interface-ref > | | +--rw address-families > | | +--rw ipv4 > | | +--rw config > | | +--rw enable? boolean > > > > 9.1 Base > > leaf peer-ldp-id { > type yang:dotted-quad; > description "Peer LDP ID."; > } > > Nit: "peer-" prefix needed? > > Is this value different from peer LSR ID? > > In general, I believe you are on the right path, but I don’t have deep LDP knowledge, so can’t understand some of the nuances that you might have wanted to address > > Cheers, > > Dean > > > . > From nobody Thu Jun 22 23:46:09 2017 Return-Path: X-Original-To: yang-doctors@ietfa.amsl.com Delivered-To: yang-doctors@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id CF34C129C31 for ; Thu, 22 Jun 2017 23:46:07 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -4.301 X-Spam-Level: X-Spam-Status: No, score=-4.301 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_MED=-2.3, RP_MATCHES_RCVD=-0.001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=cesnet.cz Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id eQoEc1Txk6wi for ; Thu, 22 Jun 2017 23:46:05 -0700 (PDT) Received: from office2.cesnet.cz (office2.cesnet.cz [195.113.144.244]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 899101271FD for ; Thu, 22 Jun 2017 23:46:01 -0700 (PDT) Received: from [IPv6:2001:67c:1220:80c:921b:eff:fe59:4360] (unknown [IPv6:2001:67c:1220:80c:921b:eff:fe59:4360]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by office2.cesnet.cz (Postfix) with ESMTPSA id B3F5E20066; Fri, 23 Jun 2017 08:45:58 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cesnet.cz; s=office2; t=1498200359; bh=xAtLk8RjHXsrDi9Ey8kNY7yv/qiwAMlte8WGYbhl2eU=; h=Subject:To:Cc:References:From:Date:In-Reply-To; b=eppn6991KEZC4NW1zjnPVki+m3+83zllj3qEZg+kbUVsI0B18Cx6V9J1wqz4ZHg76 hxDGL1YCLyaYhljRWAt57Sd3TCpWYQDON5n5i0Z03QSZI3ocvbfWpkVzNkJsQaHF3k RwIphiFVmoj2zsZlrI8t4oZXoVCt+cVVwYb1GaiI= To: Benoit Claise Cc: YANG Doctors , "Joe Clarke (jclarke)" References: <90f1c2cb-8c53-f981-0430-94dc1fa21e56@cisco.com> From: =?UTF-8?B?UmFkZWsgS3JlasSNw60=?= Message-ID: <2da1237d-a501-8dee-0b74-bdb8932a8c8d@cesnet.cz> Date: Fri, 23 Jun 2017 08:45:24 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.1.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Content-Language: en-US Archived-At: Subject: Re: [yang-doctors] Do we need a YANG doctor lunch meeting at the IETF meeting? X-BeenThere: yang-doctors@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: email list of the yang-doctors directorate List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 23 Jun 2017 06:46:08 -0000 I should be there, Radek Dne 22.6.2017 v 11:53 Benoit Claise napsal(a): > How many YANG doctors will we see in the hackathon ... From nobody Fri Jun 23 01:05:25 2017 Return-Path: X-Original-To: yang-doctors@ietfa.amsl.com Delivered-To: yang-doctors@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 5102412EA8C for ; Fri, 23 Jun 2017 01:05:23 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -7 X-Spam-Level: X-Spam-Status: No, score=-7 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_HI=-5, RP_MATCHES_RCVD=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=nic.cz Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id yzx895M4nMhW for ; Fri, 23 Jun 2017 01:05:21 -0700 (PDT) Received: from mail.nic.cz (mail.nic.cz [217.31.204.67]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id E369312EA74 for ; Fri, 23 Jun 2017 01:05:19 -0700 (PDT) Received: from [IPv6:2001:718:1a02:1:2027:a5:8dbe:492b] (unknown [IPv6:2001:718:1a02:1:2027:a5:8dbe:492b]) by mail.nic.cz (Postfix) with ESMTPSA id 5412260918; Fri, 23 Jun 2017 10:05:17 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=nic.cz; s=default; t=1498205117; bh=RdtqCgg1o2Mc2hCLI16a0VWisUpEH0U/GdjgN/8MSd0=; h=From:Date:To; b=Gn34JKkmmKiBWVdclEqtqd28FURnwMAn7sbhE2ENh/iMOpfnL5bC4r+BEXm3OCQss yWgYFoLcMGzmvTS7ZTk2VpzRnuE26ky1xkEPCYVtaTUmr5GuaYDa0uSEooIgQtm5Oo U3bryYrRExoj9xhKosc3jM+hHUXYNK5zULVr8oFs= Content-Type: text/plain; charset=utf-8 Mime-Version: 1.0 (Mac OS X Mail 10.3 \(3273\)) From: Ladislav Lhotka In-Reply-To: <2da1237d-a501-8dee-0b74-bdb8932a8c8d@cesnet.cz> Date: Fri, 23 Jun 2017 10:05:19 +0200 Cc: Benoit Claise , Benoit Claise , "Joe Clarke (jclarke)" Content-Transfer-Encoding: quoted-printable Message-Id: References: <90f1c2cb-8c53-f981-0430-94dc1fa21e56@cisco.com> <2da1237d-a501-8dee-0b74-bdb8932a8c8d@cesnet.cz> To: =?utf-8?B?UmFkZWsgS3JlasSNw60=?= X-Mailer: Apple Mail (2.3273) X-Virus-Scanned: clamav-milter 0.99.2 at mail X-Virus-Status: Clean Archived-At: Subject: Re: [yang-doctors] Do we need a YANG doctor lunch meeting at the IETF meeting? X-BeenThere: yang-doctors@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: email list of the yang-doctors directorate List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 23 Jun 2017 08:05:23 -0000 > On 23 Jun 2017, at 08:45, Radek Krej=C4=8D=C3=AD = wrote: >=20 > I should be there, >=20 > Radek >=20 Me too. Lada >=20 > Dne 22.6.2017 v 11:53 Benoit Claise napsal(a): >> How many YANG doctors will we see in the hackathon ... >=20 > _______________________________________________ > yang-doctors mailing list > yang-doctors@ietf.org > https://www.ietf.org/mailman/listinfo/yang-doctors -- Ladislav Lhotka Head, CZ.NIC Labs PGP Key ID: 0xB8F92B08A9F76C67 From nobody Fri Jun 23 07:40:32 2017 Return-Path: X-Original-To: yang-doctors@ietfa.amsl.com Delivered-To: yang-doctors@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 9495B12EAF4 for ; Fri, 23 Jun 2017 07:40:31 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.999 X-Spam-Level: X-Spam-Status: No, score=-1.999 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=gmail.com Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id db5ZWiELS1tK for ; Fri, 23 Jun 2017 07:40:29 -0700 (PDT) Received: from mail-wr0-x22e.google.com (mail-wr0-x22e.google.com [IPv6:2a00:1450:400c:c0c::22e]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id D71AB12EAFE for ; Fri, 23 Jun 2017 07:40:26 -0700 (PDT) Received: by mail-wr0-x22e.google.com with SMTP id c11so68584282wrc.3 for ; Fri, 23 Jun 2017 07:40:26 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:references:in-reply-to:subject:date:message-id :mime-version:content-transfer-encoding:thread-index :content-language; bh=3tGnqsc9wlkxppYerKQshJTnK3mE1MeTr01fZ6GBHbM=; b=R87Ygutgp2TODTjb+V7VqrdiEc6gjH8PfJ73GvxqhB+XyORZQJjfIXdqvD/ltnRrA3 6YtTYYMXTO/7J70WmE6iVBOKfWklKe6vsYSDUvrGvqDv1G7U3ENVV7rM5eMeXj/FnglR 8uEX37IWjiC7wHlbfEEUVQWbeD+GC1+BPS1tfblaEQB35md/NgZc9tgSVonHcmgX03c4 7f2zDVxqKg/XggXC5hku29fxz0gw7pvK2eTtxsM+v5v/fuKwYhSg8PCtsDVR25/veUuB fs2gvKKi+TbdV0j59clEelCWoqPqGAOY/rVJ6CgsGh7Buz5wjzNosMVdTtOyfaOpRoqX dCdQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:references:in-reply-to:subject:date :message-id:mime-version:content-transfer-encoding:thread-index :content-language; bh=3tGnqsc9wlkxppYerKQshJTnK3mE1MeTr01fZ6GBHbM=; b=jYGS5/zTsj9eCr+faTKuWTqE34b6Bla6074qxgZtjXr8Bh20vGROKt+Ty6Ebmj9D+M 9vHFe8tG9fH7ZQ2aiTAjPXuHwyNDoDshI6CQZYZBbDketntSDrLs7fyXXdMiV07G0/MS nkGQU7hziVy50vS4Nuev50+7uegSUFxIfDaq0m5j0gVh+QzwtpV2rmLvL3+fMCygg5QT b3P3h8VaB6OU69+Z7l27noQBrqbw63/k4jXN34rkq1OP1WNffEuQLcNsdgvEsS87rV+K El2nXjm/qbR9ob76IV+O31bDlZpy0jlAQGopcoD+D5wV385KqCH9QdUbemjsxz8uqwrO 4uCQ== X-Gm-Message-State: AKS2vOyPSIpPLGPremHVovNyjhIZ8CNtw2in50eshRCFpidfYjdWQnaL jL1BpHehS8qsGhGn X-Received: by 10.223.136.216 with SMTP id g24mr5629780wrg.199.1498228825395; Fri, 23 Jun 2017 07:40:25 -0700 (PDT) Received: from DESKTOPFLHJVQJ (p57A7773E.dip0.t-ipconnect.de. [87.167.119.62]) by smtp.gmail.com with ESMTPSA id f199sm4347470wmd.33.2017.06.23.07.40.24 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 23 Jun 2017 07:40:24 -0700 (PDT) From: "Mehmet Ersue" To: "'Benoit Claise'" Cc: "'YANG Doctors'" References: <90f1c2cb-8c53-f981-0430-94dc1fa21e56@cisco.com> <2da1237d-a501-8dee-0b74-bdb8932a8c8d@cesnet.cz> In-Reply-To: <2da1237d-a501-8dee-0b74-bdb8932a8c8d@cesnet.cz> Date: Fri, 23 Jun 2017 16:40:23 +0200 Message-ID: <008701d2ec2e$a62af6d0$f280e470$@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable X-Mailer: Microsoft Outlook 16.0 Thread-Index: AQKkdOHXdG6F829AuV1lb83yP33bgwESwRnxAgCu6vgBMHhH0QItHTurApT5k5qgR0OAgA== Content-Language: de Archived-At: Subject: Re: [yang-doctors] Do we need a YANG doctor lunch meeting at the IETF meeting? X-BeenThere: yang-doctors@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: email list of the yang-doctors directorate List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 23 Jun 2017 14:40:32 -0000 looks good Cheers, Mehmet > -----Original Message----- > From: yang-doctors [mailto:yang-doctors-bounces@ietf.org] On Behalf Of > Radek Krejc=ED > Sent: Friday, June 23, 2017 8:45 AM > To: Benoit Claise > Cc: YANG Doctors ; Joe Clarke (jclarke) > > Subject: Re: [yang-doctors] Do we need a YANG doctor lunch meeting at = the > IETF meeting? >=20 > I should be there, >=20 > Radek >=20 >=20 > Dne 22.6.2017 v 11:53 Benoit Claise napsal(a): > > How many YANG doctors will we see in the hackathon ... >=20 > _______________________________________________ > yang-doctors mailing list > yang-doctors@ietf.org > https://www.ietf.org/mailman/listinfo/yang-doctors From nobody Mon Jun 26 03:46:50 2017 Return-Path: X-Original-To: yang-doctors@ietfa.amsl.com Delivered-To: yang-doctors@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 490EE126C83; Mon, 26 Jun 2017 03:46:36 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -14.502 X-Spam-Level: X-Spam-Status: No, score=-14.502 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_HI=-5, RP_MATCHES_RCVD=-0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, USER_IN_DEF_DKIM_WL=-7.5] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=cisco.com Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Nktz8UQpKSIs; Mon, 26 Jun 2017 03:46:33 -0700 (PDT) Received: from aer-iport-2.cisco.com (aer-iport-2.cisco.com [173.38.203.52]) (using TLSv1.2 with cipher DHE-RSA-SEED-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id EBC20126BF3; Mon, 26 Jun 2017 03:46:31 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=@cisco.com; l=26948; q=dns/txt; s=iport; t=1498473992; x=1499683592; h=subject:to:cc:references:from:message-id:date: mime-version:in-reply-to; bh=RoLa4AqXRcYKWLcP5lEoBus/7R2cQIzGgXaam3UnTKA=; b=BTvhJz8+lAg/Hft13r5nn/pSlN4crCaWcjHbNZogSRgsh8keVwGPn9KQ gLVdh9RRau/UsiPqryPXNRLvHS0OqN9/AG9dqRwU1ARQiHv6bGqvfPuJp qS7zPSrX+S6Y3PpHFSvkC1V0c3IilKZljyIv8ZD2ltBdLA79LKqphgbg0 Y=; X-IronPort-AV: E=Sophos;i="5.39,395,1493683200"; d="scan'208,217";a="652841325" Received: from aer-iport-nat.cisco.com (HELO aer-core-1.cisco.com) ([173.38.203.22]) by aer-iport-2.cisco.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 26 Jun 2017 10:46:30 +0000 Received: from [10.55.221.37] (ams-bclaise-nitro4.cisco.com [10.55.221.37]) by aer-core-1.cisco.com (8.14.5/8.14.5) with ESMTP id v5QAkThI028434; Mon, 26 Jun 2017 10:46:29 GMT To: Xufeng Liu , Robert Wilton , Mahesh Jethanandani , "yang-doctors@ietf.org" Cc: "ietf@ietf.org" , "teas@ietf.org" , "draft-ietf-teas-yang-te-topo.all@ietf.org" , Benoit Claise References: <149564066257.28529.12761629961042171907@ietfa.amsl.com> <5d4541d3-9426-787d-e02b-9c2dbc3a5400@cisco.com> <3a1c319f-0255-b8ee-ecbd-739568c1dc7f@cisco.com> <1ab3a0d8-de3e-1d7c-2967-97b74b1c68a5@cisco.com> From: Benoit Claise Message-ID: <04b933e2-189a-6fe2-5d24-310167f91b69@cisco.com> Date: Mon, 26 Jun 2017 12:46:29 +0200 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.2.0 MIME-Version: 1.0 In-Reply-To: Content-Type: multipart/alternative; boundary="------------6D1C27D0843768AFE393C509" Content-Language: en-US Archived-At: Subject: Re: [yang-doctors] [Teas] Yangdoctors last call review of draft-ietf-teas-yang-te-topo-08 X-BeenThere: yang-doctors@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: email list of the yang-doctors directorate List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 26 Jun 2017 10:46:36 -0000 This is a multi-part message in MIME format. --------------6D1C27D0843768AFE393C509 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Hi Xufeng, > Hi Benoit, > >> -----Original Message----- >> From: Benoit Claise [mailto:bclaise@cisco.com] >> Sent: Thursday, June 22, 2017 6:12 AM >> To: Robert Wilton ; Xufeng Liu ; >> Mahesh Jethanandani ; yang-doctors@ietf.org >> Cc: ietf@ietf.org; teas@ietf.org; draft-ietf-teas-yang-te-topo.all@ietf.org >> Subject: Re: [Teas] Yangdoctors last call review of draft-ietf-teas-yang-te-topo- >> 08 >> >> Dear draft-ietf-teas-yang-te-topo authors, >>> Hi Xufeng, >>> >>> OK, by tooling, I don't mean the pyang plugins that I have been >>> working on to convert between different types of models. As you >>> aware, the TE YANG models can easily be converted to NMDA style since >>> I have already done it >>> (https://github.com/rgwilton/ietf-models-to-combined). >>> >>> My comment actually relates to the fact the structure used by TE YANG >>> modules don't match any other YANG modules - they are using their own >>> unique style of structure. >> This is an important issue to resolve. >>> Today, there are three common styles of modules: >>> (1) IETF style split config/state trees (e.g. ietf-interfaces). >>> (2) IETF NMDA style combined config/state trees (i.e. where all IETF >>> modules are heading to). >>> (3) OpenConfig style modules with the config/state containers >>> immediately above the config leaves. >>> >>> Tooling is likely to be optimized to work with these model structures, >>> but the TE modules do not fit into any of the three styles above. >>> They are a yet another OpenConfig-like style, but that is different >>> enough that tooling that is designed to work with OpenConfig style >>> YANG modules would likely not work with the TE YANG modules. >>> >>> Specifically, for clients that expecting to work with an OpenConfig >>> style YANG module, then if it knows the path to config leaf X, then >>> they would expect the applied config value to be available at the path >>> "../state/X". But, this doesn't hold for the structure being used in >>> the TE YANG models. >>> >>> I believe strongly that the models being produced by organizations >>> should be structures in a consistent way, hence why I think that the >>> published standard version of the TE YANG modules should immediately >>> align to the NMDA style. >> Agreed. >> Here is the OPS and RTG AD message: >> https://www.ietf.org/mail-archive/web/netmod/current/msg18252.html >> >> I understand that the I2RS topology YANG modules will be improved to the >> NMDA style. > [Xufeng] The I2RS topology model is already NMDA style, but the NMDA models are not immediately implementable without NETCONF/RESTCONF protocol update. We will need the "-state" module for the I2RS topology model (and for all the top-level models) for now. Adding -state to the Appendix is a possibility. "In all cases, the NMDA and non-NMDA modules SHOULD be published in the same document, with NMDA modules in the document main body and the non-NMDA modules in an Appendix." See https://www.ietf.org/mail-archive/web/netmod/current/msg18252.html > While the NMDA is nice, the NMDA discussions have already significantly delayed publishing new models, and doing NMDA without staging will further delay the process. This is not solving the important issue brought up by Rob Witlon: My comment actually relates to the fact the structure used by TE YANG modules don't match any other YANG modules - they are using their own unique style of structure. Regards, B. > Thanks, Xufeng >> Regards, Benoit >>> Thanks, >>> Rob >>> >>> >>> On 22/06/2017 04:16, Xufeng Liu wrote: >>>> Hi Rob, >>>> >>>> While the tooling is very nice to have, especially for writing new >>>> models or converting models, we do not have to use it for every >>>> model. It seems not necessary to use the tooling on this model for >>>> now. We already know that we can manually convert it to NMDA style if >>>> needed. >>>> >>>> Thanks, >>>> - Xufeng >>>> >>>>> -----Original Message----- >>>>> From: Robert Wilton [mailto:rwilton@cisco.com] >>>>> Sent: Wednesday, June 21, 2017 5:34 AM >>>>> To: Xufeng Liu ; Mahesh Jethanandani >>>>> ; yang-doctors@ietf.org >>>>> Cc: ietf@ietf.org; teas@ietf.org; >>>>> draft-ietf-teas-yang-te-topo.all@ietf.org >>>>> Subject: Re: [Teas] Yangdoctors last call review of >>>>> draft-ietf-teas-yang-te-topo- >>>>> 08 >>>>> >>>>> Hi Xufeng, >>>>> >>>>> On 12/06/2017 22:28, Xufeng Liu wrote: >>>>>> Hi Mahesh, >>>>>> >>>>>> Thank you much for the review. We have submitted an updated draft >>>>> (https://tools.ietf.org/html/draft-ietf-teas-yang-te-topo-09) to >>>>> address these issues. More detailed explanations are put below >>>>> inline. >>>>>> If the responses and updates are satisfactory, we are ready for the >>>>>> last call. >>>>>> >>>>>> Best regards, >>>>>> - Xufeng >>>>>> >>>>>>> -----Original Message----- >>>>>>> From: Mahesh Jethanandani [mailto:mjethanandani@gmail.com] >>>>>>> Sent: Wednesday, May 24, 2017 11:44 AM >>>>>>> To: yang-doctors@ietf.org >>>>>>> Cc: ietf@ietf.org; teas@ietf.org; >>>>>>> draft-ietf-teas-yang-te-topo.all@ietf.org >>>>>>> Subject: Yangdoctors last call review of >>>>>>> draft-ietf-teas-yang-te-topo-08 >>>>>>> >>>>>>> Reviewer: Mahesh Jethanandani >>>>>>> Review result: Ready with Issues >>>>>>> >>>>>>> Document reviewed: draft-ietf-teas-yang-te-topo-08 >>>>>>> >>>>>>> Status: Ready with Issues >>>>>>> >>>>>>> I am not an expert in Traffic Engineering. This review is looking >>>>>>> at the draft from a YANG perspective. With that said, I have >>>>>>> marked it as “Ready >>>>> with Issues” >>>>>>> because of some of the points discussed below. >>>>>>> >>>>>>> Summary: >>>>>>> >>>>>>> This document defines a YANG data model for representing, >>>>>>> retrieving and manipulating TE Topologies. The model serves as a >>>>>>> base model that other technology specific TE Topology models can >> augment. >>>>>>> Comments: >>>>>>> >>>>>>> Almost all the containers in the model are presence containers. Is >>>>>>> there a reason why they have to be presence containers? Note, that >>>>>>> presence containers are containers whose existence itself >>>>>>> represents configuration data. What particular configuration data >>>>>>> is each container >>>>> representing in itself? >>>>>> [Xufeng] Containers that use “presence” are: >>>>>> - Container “underlay” >>>>>> o We have changed 13 occurrences of such containers to be >>>>>> not >>>>> presence container. >>>>>> - Container “te” under augmentation >>>>>> o To indicate that “TE” is enabled (configuration data) >>>>>> o Also used to do augmentation. The “presence” statement can >>>>> prevent the mandatory child from affecting augmented base model. >>>>>> - /nw:networks/nw:network/nw:network-types/te-topology! >>>>>> o A mechanism required by I2RS topology model to specify the >>>>> topology type. >>>>>>> It is difficult to co-relate the diagram with the model itself >>>>>>> because of different terms being used to define different parts of >>>>>>> the model. >>>>>>> There is “TE Topology Model” and then there is “Generic TE >>>>>>> Topology >>>>> Model”. >>>>>>> Are these one and the same models? If so, a common term for both >>>>>>> of them would be helpful. >>>>>> [Xufeng] Yes. These two terms are the same. Figure 12, Figure 13, >>>>>> and relevant >>>>> descriptions have been updated to make the document consistent. >>>>>>> There is extensive use of groupings in the document. However, not >>>>>>> all instances of groupings are used multiple number of times. >>>>>>> Where they are not being repeated, it would be better to move the >>>>>>> grouping directly where the uses statement resides. Case in point >>>>>>> the grouping >>>>> connectivity-label-restriction-list. >>>>>> [Xufeng] We have removed the following groupings >>>>>> te-link-augment >>>>>> te-node-augment >>>>>> te-termination-point-augment >>>>>> te-topologies-augment >>>>>> te-topology-augment >>>>>> te-link-state-underlay-attributes >>>>>> te-node-state-derived-notification >>>>>> te-topology-type >>>>>> >>>>>> The remaining groupings have been kept so that we can: >>>>>> - Share the groupings in this model >>>>>> - Prepare to be shared by a model augmenting this model >>>>>> - Prevent a grouping or configuration section from being too long >>>>>> - Improve readability >>>>>> >>>>>>> The split between config and state containers does not seem to >>>>>>> follow any particular pattern. >>>>>> [Xufeng] The pattern is clear: >>>>>> For each manageable entity (object), there is a config container >>>>>> and state >>>>> container. The configurable properties go into the config container >>>>> and state properties go into the state container. Such objects are >>>>> identified by a list item or a presence container so that the >>>>> “create”, “delete”, and “modify” >>>>> operations >>>>> can be performed on them. The non-presence containers do not >>>>> represent configuration data so they do not introduce such objects. >>>>>>> It is neither a top level split, as is the case with existing IETF >>>>>>> models, >>>>>> [Xufeng] We could not do top level split because the base I2RS >>>>>> network >>>>> topology model >>>>> (https://tools.ietf.org/html/draft-ietf-i2rs-yang-network-topo- >>>>> 12) that we augment does not have the top-level split (for its own >>>>> reasons). >>>>>>> nor do they follow the OpenConfig style of splitting config and >>>>>>> state under each relevant leaf, >>>>>> [Xufeng] The pattern is consistent with this style in principle, >>>>>> with some >>>>> adjustments to fit to our multiple levels of hierarchy. >>>>> This is effectively a new forth style of YANG models that is not >>>>> consistent with any of the three existing styles, i.e.: >>>>> - Current IETF config/state split model style >>>>> - NMDA combined config/state tree >>>>> - OpenConfig split config/state containers immediately above the >>>>> config true leaves. >>>>> >>>>> Tooling that it designed to work with OpenConfig models will need >>>>> customization to work with these TE models because the config/state >>>>> containers will not be where the tooling expects them to be. >>>>> >>>>> Thanks, >>>>> Rob >>> . >>> --------------6D1C27D0843768AFE393C509 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: 8bit
Hi Xufeng,
Hi Benoit,


-----Original Message-----
From: Benoit Claise [mailto:bclaise@cisco.com]
Sent: Thursday, June 22, 2017 6:12 AM
To: Robert Wilton <rwilton@cisco.com>; Xufeng Liu <Xufeng_Liu@jabil.com>;
Mahesh Jethanandani <mjethanandani@gmail.com>; yang-doctors@ietf.org
Cc: ietf@ietf.org; teas@ietf.org; draft-ietf-teas-yang-te-topo.all@ietf.org
Subject: Re: [Teas] Yangdoctors last call review of draft-ietf-teas-yang-te-topo-
08

Dear draft-ietf-teas-yang-te-topo authors,

Hi Xufeng,

OK, by tooling, I don't mean the pyang plugins that I have been
working on to convert between different types of models.  As you
aware, the TE YANG models can easily be converted to NMDA style since
I have already done it
(https://github.com/rgwilton/ietf-models-to-combined).

My comment actually relates to the fact the structure used by TE YANG
modules don't match any other YANG modules - they are using their own
unique style of structure.

This is an important issue to resolve.

Today, there are three common styles of modules:
(1) IETF style split config/state trees (e.g. ietf-interfaces).
(2) IETF NMDA style combined config/state trees (i.e. where all IETF
modules are heading to).
(3) OpenConfig style modules with the config/state containers
immediately above the config leaves.

Tooling is likely to be optimized to work with these model structures,
but the TE modules do not fit into any of the three styles above.
They are a yet another OpenConfig-like style, but that is different
enough that tooling that is designed to work with OpenConfig style
YANG modules would likely not work with the TE YANG modules.

Specifically, for clients that expecting to work with an OpenConfig
style YANG module, then if it knows the path to config leaf X, then
they would expect the applied config value to be available at the path
"../state/X".  But, this doesn't hold for the structure being used in
the TE YANG models.

I believe strongly that the models being produced by organizations
should be structures in a consistent way, hence why I think that the
published standard version of the TE YANG modules should immediately
align to the NMDA style.

Agreed.
Here is the OPS and RTG AD message:
https://www.ietf.org/mail-archive/web/netmod/current/msg18252.html

I understand that the I2RS topology YANG modules will be improved to the
NMDA style.

[Xufeng] The I2RS topology model is already NMDA style, but the NMDA models are not immediately implementable without NETCONF/RESTCONF protocol update. We will need the "-state" module for the I2RS topology model (and for all the top-level models) for now.
Adding -state to the Appendix is a possibility.
"In all cases, the NMDA and non-NMDA modules SHOULD be published in the same document, with NMDA modules in the document main body and the non-NMDA modules in an Appendix."
See https://www.ietf.org/mail-archive/web/netmod/current/msg18252.html
 
While the NMDA is nice, the NMDA discussions have already significantly delayed publishing new models, and doing NMDA without staging will further delay the process.
This is not solving the important issue brought up by Rob Witlon:
My comment actually relates to the fact the structure used by TE YANG modules don't match any other YANG modules - they are using their own unique style of structure.
Regards, B.
Thanks,  Xufeng

Regards, Benoit

Thanks,
Rob


On 22/06/2017 04:16, Xufeng Liu wrote:

Hi Rob,

While the tooling is very nice to have, especially for writing new
models or converting models, we do not have to use it for every
model. It seems not necessary to use the tooling on this model for
now. We already know that we can manually convert it to NMDA style if
needed.

Thanks,
- Xufeng


-----Original Message-----
From: Robert Wilton [mailto:rwilton@cisco.com]
Sent: Wednesday, June 21, 2017 5:34 AM
To: Xufeng Liu <Xufeng_Liu@jabil.com>; Mahesh Jethanandani
<mjethanandani@gmail.com>; yang-doctors@ietf.org
Cc: ietf@ietf.org; teas@ietf.org;
draft-ietf-teas-yang-te-topo.all@ietf.org
Subject: Re: [Teas] Yangdoctors last call review of
draft-ietf-teas-yang-te-topo-
08

Hi Xufeng,

On 12/06/2017 22:28, Xufeng Liu wrote:

Hi Mahesh,

Thank you much for the review. We have submitted an updated draft

(https://tools.ietf.org/html/draft-ietf-teas-yang-te-topo-09) to
address these issues. More detailed explanations are put below
inline.

If the responses and updates are satisfactory, we are ready for the
last call.

Best regards,
- Xufeng


-----Original Message-----
From: Mahesh Jethanandani [mailto:mjethanandani@gmail.com]
Sent: Wednesday, May 24, 2017 11:44 AM
To: yang-doctors@ietf.org
Cc: ietf@ietf.org; teas@ietf.org;
draft-ietf-teas-yang-te-topo.all@ietf.org
Subject: Yangdoctors last call review of
draft-ietf-teas-yang-te-topo-08

Reviewer: Mahesh Jethanandani
Review result: Ready with Issues

Document reviewed: draft-ietf-teas-yang-te-topo-08

Status: Ready with Issues

I am not an expert in Traffic Engineering. This review is looking
at the draft from a YANG perspective. With that said, I have
marked it as “Ready

with Issues”

because of some of the points discussed below.

Summary:

This document defines a YANG data model for representing,
retrieving and manipulating TE Topologies. The model serves as a
base model that other technology specific TE Topology models can

augment.

Comments:

Almost all the containers in the model are presence containers. Is
there a reason why they have to be presence containers? Note, that
presence containers are containers whose existence itself
represents configuration data. What particular configuration data
is each container

representing in itself?

[Xufeng] Containers that use “presence” are:
    - Container “underlay”
      o  We have changed 13 occurrences of such containers to be
not

presence container.

    - Container “te” under augmentation
      o  To indicate that “TE” is enabled (configuration data)
      o  Also used to do augmentation. The “presence” statement can

prevent the mandatory child from affecting augmented base model.

    - /nw:networks/nw:network/nw:network-types/te-topology!
      o  A mechanism required by I2RS topology model to specify the

topology type.

It is difficult to co-relate the diagram with the model itself
because of different terms being used to define different parts of
the model.
There is “TE Topology Model” and then there is “Generic TE
Topology

Model”.

Are these one and the same models? If so, a common term for both
of them would be helpful.

[Xufeng] Yes. These two terms are the same. Figure 12, Figure 13,
and relevant

descriptions have been updated to make the document consistent.

There is extensive use of groupings in the document. However, not
all instances of groupings are used multiple number of times.
Where they are not being repeated, it would be better to move the
grouping directly where the uses statement resides. Case in point
the grouping

connectivity-label-restriction-list.

[Xufeng] We have removed the following groupings
      te-link-augment
      te-node-augment
      te-termination-point-augment
      te-topologies-augment
      te-topology-augment
      te-link-state-underlay-attributes
      te-node-state-derived-notification
      te-topology-type

The remaining groupings have been kept so that we can:
    - Share the groupings in this model
    - Prepare to be shared by a model augmenting this model
    - Prevent a grouping or configuration section from being too long
    - Improve readability


The split between config and state containers does not seem to
follow any particular pattern.

[Xufeng] The pattern is clear:
For each manageable entity (object), there is a config container
and state

container. The configurable properties go into the config container
and state properties go into the state container. Such objects are
identified by a list item or a presence container so that the
“create”, “delete”, and “modify”
operations
can be performed on them. The non-presence containers do not
represent configuration data so they do not introduce such objects.

It is neither a top level split, as is the case with existing IETF
models,

[Xufeng] We could not do top level split because the base I2RS
network

topology model
(https://tools.ietf.org/html/draft-ietf-i2rs-yang-network-topo-
12) that we augment does not have the top-level split (for its own
reasons).

nor do they follow the OpenConfig style of splitting config and
state under each relevant leaf,

[Xufeng] The pattern is consistent with this style in principle,
with some

adjustments to fit to our multiple levels of hierarchy.
This is effectively a new forth style of YANG models that is not
consistent with any of the three existing styles, i.e.:
   - Current IETF config/state split model style
   - NMDA combined config/state tree
   - OpenConfig split config/state containers immediately above the
config true leaves.

Tooling that it designed to work with OpenConfig models will need
customization to work with these TE models because the config/state
containers will not be where the tooling expects them to be.

Thanks,
Rob

.



    

    

  


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From: Benoit Claise 
To: YANG Doctors , "Robert Wilton -X (rwilton - Ensoft Ltd at Cisco)" , "" , "ops-ads@ietf.org" 
References: <767b9462-80ad-2942-f67e-31789239b894@cisco.com> <14bdf15a-1803-2607-13c6-346be07b51f0@cisco.com>
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Subject: Re: [yang-doctors] Fwd: Important: Guidelines for YANG module authors
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Dear YANG doctors,

Thinking some more about it, I believe we want to review one more time 
the already-reviewed YANG modules to flag whether they align with the 
guidelines below.
Background: the TEAS YANG module draft-ietf-teas-yang-te-topo, which 
we're discussing now.
On this specific one, not only it's not aligned with the NMDA 
guidelines, but he doesn't align with any of of the known YANG module 
structure, as Rob mentioned:

    My comment actually relates to the fact the structure used by TE
    YANG modules don't match any other YANG modules - they are using
    their own unique style of structure.

Practically, it means that this YANG module will be hard to integrate.

Regards, Benoit
> Dear YANG doctors,
>
> Here is an important message for your YANG doctor reviews.
> Rob Wilton developed some tooling to help YANG module designers to 
> transition to NMDA.
>
> Rob, would you mind explaining to everybody on this list, and maybe on 
> the NETMOD if you believe this is relevant for everybody.
>
> Regards, Benoit
>
> -------- Forwarded Message --------
> Subject: 	Important: Guidelines for YANG module authors
> Date: 	Fri, 9 Jun 2017 15:56:39 +0200
> From: 	Benoit Claise 
> To: 	NETMOD Working Group 
>
>
>
> Dear all,
>
> Now that the new NETMOD and NETCONF charters have been approved, it's 
> time to think about the guidelines for YANG module authors.
>
> The Network Management Datastore Architecture (NMDA) addresses the 
> so-called "OpState problem" that has been the subject of much 
> discussion in the IETF. NMDA is still in development, and there will 
> be a transition period before NMDA solutions are universally available.
>
> The NETMOD Datastore Design Team and the Routing Yang Architecture 
> Design Team have worked with Alia and Benoit to create initial 
> guidelines for how the NMDA, as defined in 
> draft-ietf-netmod-revised-datastores 
> , 
> impacts Yang models. The draft-dsdt-nmda-guidelines 
>  
> individual draft was foundational in helping creating those guidelines.
>
> If you have questions or concerns on how these guidelines should apply 
> to work of interest, please contact your WG Chairs or ADs.
>
> It is our strong recommendation, as ADs with agreement from the NETMOD 
> WG Chairs, that models SHOULD move as quickly as possible to the NMDA. 
> The specific approach to be taken for models being developed now and 
> during the NMDA transition period should be based on both the expected 
> usage and the maturity of the data model.
>
> 1. New models and models that are not concerned with the operational 
> state of configuration information SHOULD immediately be structured to 
> be NMDA-compatible.
>
> 2. Models that require immediate support for "in use" and "system 
> created" information SHOULD be structured for NMDA. Then derived 
> versions of these models SHOULD be created, either by hand or with 
> suitable tools, that follow the current modeling strategies. In some 
> cases, the non-NMDA model may be an existing model and not derived 
> from the NMDA model. In all cases, the NMDA and non-NMDA modules 
> SHOULD be published in the same document, with NMDA modules in the 
> document main body and the non-NMDA modules in an Appendix. The use of 
> the non-NMDA model will allow temporary bridging of the time period 
> until NMDA implementations are available. The non-NMDA module names 
> should include ’-state’ appended.
>
> We would like to thank Kent Watsen, Lou Berger, Rob Wilton, Martin 
> Bjorklund, Phil Shafer, Acee Lindem, Chris Hopps, Juergen 
> Schoenwaelder, and all others who helped develop these guidelines.
>
> Regards,
> Alia Atlas, Routing AD
> Deborah Brungard, Routing AD
> Alvaro Retana, Routing AD
> Warren Kumari, Operations & Management AD
> Benoit Claise, Operations & Management AD
>
>
> _______________________________________________
> yang-doctors mailing list
> yang-doctors@ietf.org
> https://www.ietf.org/mailman/listinfo/yang-doctors


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Dear YANG doctors,

      

      Thinking some more about it, I believe we want to review one more
      time the already-reviewed YANG modules to flag whether they align
      with the guidelines below.

      Background: the TEAS YANG module draft-ietf-teas-yang-te-topo,
      which we're discussing now. 

      On this specific one, not only it's not aligned with the NMDA
      guidelines, but he doesn't align with any of of the known YANG
      module structure, as Rob mentioned:

      
My comment actually relates to the fact the structure
        used by TE YANG modules don't match any other YANG modules -
        they are using their own unique style of structure.

      Practically, it means that this YANG module will be hard to
      integrate.

      

      Regards, Benoit    

    

    

      
      Dear YANG doctors,

      

      Here is an important message for your YANG doctor reviews.

      Rob Wilton developed some tooling to help YANG module designers to
      transition to NMDA.

      

      Rob, would you mind explaining to everybody on this list, and
      maybe on the NETMOD if you believe this is relevant for everybody.

      

      Regards, Benoit

      

      
-------- Forwarded Message
        --------
        

          
            

              Subject:
              
              Important: Guidelines for YANG module authors
            

            

              Date:
              
              Fri, 9 Jun 2017 15:56:39 +0200
            

            

              From:
              
              Benoit Claise <bclaise@cisco.com>
            

            

              To: 
              NETMOD Working Group <netmod@ietf.org>
            

          
        

        

        

        Dear all,

        

        Now that the new NETMOD and NETCONF charters have been approved,
        it's time to think about the guidelines for YANG module authors.

        

        The Network Management Datastore Architecture (NMDA) addresses
        the so-called "OpState problem" that has been the subject of
        much discussion in the IETF. NMDA is still in development, and
        there will be a transition period before NMDA solutions are
        universally available.

        
 

          The NETMOD Datastore Design Team and the Routing Yang
          Architecture Design Team have worked with Alia and Benoit to
          create initial guidelines for how the NMDA, as defined in 
            draft-ietf-netmod-revised-datastores, impacts Yang
          models. The draft-dsdt-nmda-guidelines
          individual draft was foundational in helping creating those
          guidelines.

        

        
 

        

        If you have questions or concerns on how these guidelines should
        apply to work of interest, please contact your WG Chairs or ADs.

        
 

        

        It is our strong recommendation, as ADs with agreement from the
        NETMOD WG Chairs, that models SHOULD move as quickly as possible
        to the NMDA. The specific approach to be taken for models being
        developed now and during the NMDA transition period should be
        based on both the expected usage and the maturity of the data
        model.

        

        1. New models and models that are not concerned with the
        operational state of configuration information SHOULD
        immediately be structured to be NMDA-compatible.

        

        2. Models that require immediate support for "in use" and
        "system created" information SHOULD be structured for NMDA. Then
        derived versions of these models SHOULD be created, either by
        hand or with suitable tools, that follow the current modeling
        strategies. In some cases, the non-NMDA model may be an existing
        model and not derived from the NMDA model. In all cases, the
        NMDA and non-NMDA modules SHOULD be published in the same
        document, with NMDA modules in the document main body and the
        non-NMDA modules in an Appendix. The use of the non-NMDA model
        will allow temporary bridging of the time period until NMDA
        implementations are available. The non-NMDA module names should
        include ’-state’ appended.

        

        We would like to thank Kent Watsen, Lou Berger, Rob Wilton,
        Martin Bjorklund, Phil Shafer, Acee Lindem, Chris Hopps, Juergen
        Schoenwaelder, and all others who helped develop these
        guidelines.

        

        Regards,

        Alia Atlas, Routing AD

        Deborah Brungard, Routing AD

        Alvaro Retana, Routing AD

        Warren Kumari, Operations & Management AD 

        Benoit Claise, Operations & Management AD

      

      

      

      

      
_______________________________________________
yang-doctors mailing list
yang-doctors@ietf.org
https://www.ietf.org/mailman/listinfo/yang-doctors


    

    

  


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To: Martin Bjorklund , rtgwg@ietf.org
Cc: yang-doctors@ietf.org
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From: Lou Berger 
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Subject: Re: [yang-doctors] YANG doctor review of draft-ietf-rtgwg-ni-model-02
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Martin,

    sorry about the slow response, but as you know we've been waiting to
update this document until schema-mount was updated/finalized. 


On 4/23/2017 5:48 AM, Martin Bjorklund wrote:
> Hi,
>
> I am the assigned YANG doctor for draft-ietf-rtgwg-ni-model, and
> here are my review comments, based on -02:
>
>
>
> 1) Add reference to import statements.
>
>      import ietf-interfaces {
>        prefix if;
>        reference
>          "RFC 7223: A YANG Data Model for Interface Management";
>      }
okay.

>
> 2) IETF boilerplate
>
>   Use IETF boilerplate with contact, description w/ copyright etc.
will do.
>
> 3) feature bind-network-instance-name
>
>     feature bind-network-instance-name {
>       description
>         "Network Instance to which an interface instance is bound";
>     }
>
>   This description doesn't make much sense.
>
>   Also, this feature is not used in the model.  Should the feature be
>   removed or used?
 this is vestigial and can be deleted

>
> 4) unused groupings
>
>   The module defines 3 groupings that are not used:
>
>     interface-ip-common
>     ipv4-interface-protocols
>     ipv6-interface-protocols
>
>   Either they should be removed, or the text needs to explain how they
>   are supposed to be used by other modules.
>
same issue.

> 5)  network-instances
>
>   The module has this:
>
>     container network-instances {
>         description "Network instances each of which have
>                      an independent IP/IPv6 addressing space
>                      and protocol instantiations. For layer 3,
>                      this consistent with the routing-instance
>                      definition in ietf-routing";
>
>   There is no "routing-instance" in "ietf-routing".  This description
>   needs to be updated.
agreed.

>
> 6)  leaf type
>
>           leaf type {
>               type identityref {
>                   base network-instance-type;
>               }
>               description
>                   "The network instance type -- details TBD
>                    Likely types include core, L3-VRF, VPLS,
>                    L2-cross-connect, L2-VSI, etc.";
>           }
>
>   "details TBD" - needs to be fixed.
>
>   Should this leaf be mandatory? 
yes

>  If not, it needs to be specified
>   what it means if this leaf is not present.
>
>
> 7)  container network-instance-policy
>
>     container network-instance-policy {
>         description
>           "Network Instance Policy -- details TBD,
>           perhaps based on BESS model";
>     }
>
>   "details TBD" - needs to be fixed.
agreed. Hope to have this done in the rev we're working now.

> 8)  augments
>
>     augment "/if:interfaces/if:interface" {
>       description
>           "Add a node for the identification of the logical network
>           instance (which is within the interface's identified logical
>           network element) associated with the IP information
>           configured on an interface";
>
>
>   Does this mean that this model cannot be used without the LNE model?
how about:

       "Add a node for the identification of the network instance
        (which is within the interface's identified physical or
        virtual device) associated with the information
        configured on an interface";

>
>     augment "/if:interfaces/if:interface/ip:ipv4" {
>       description
>           "Add a node for the identification of the logical
>           network instance (which is within the interface's
>           identified physical or virtual device) associated with
>           the IP information configured on an interface";
>
>   What does "which is within the interface's identified physical or
>   virtual device" mean?
How about:

       "Add a node for the identification of the network instance
        (which is within the interface's identified physical or
        virtual device) associated with the IP information
        configured on an interface";

>
> 9) leaf bind-network-instance-name
>
>   This leaf is a string.  Shouldn't it be a leafref?
>
>     leaf bind-network-instance-name {
>       type leafref {
>         path "/network-instances/network-instance/name";
>       }
>       ...
>     }
good catch, this was left over form earlier version.
>
> 10) inconsistent formatting
>
>   I suggest you run pyang -f yang [--keep-comments] and possibly edit
>   the result add/remove comments.
>
>   The following comment doesn't add much and should be removed:
>
>    // namespace
>    namespace "urn:ietf:params:xml:ns:yang:ietf-network-instance";
>
>   Also remove the comments about rpcs and notifications.
>
>   Also add period ('.') at the end of all sentences in the
>   descriptions.
>
will do

>
> 11)  section 2
>
>   Align with section 2 in the LNE document.
>
will do

> 12)  section 3
>
>   Can the same interface be bound to both an LNE and an NI?  If not,
>   this needs to be explained.
>
okay.

> 13) YANG tree
>
>   Section 3.2 uses a tree diagram to show instance data.  I think this
>   is confusing, and you should use XML or JSON instead.
>
>   (see my comments on YANG tree in the LNE review as well)
>
I personally like the tree representation to show instance data find it
as much more readable for informative text, but agree that this isn't a
'standard' convention so perhaps we need to move way from it.  The next
rev will use JSON representation for example instance data.

>
>
> /martin

Thank you for the comments!
> _______________________________________________
> rtgwg mailing list
> rtgwg@ietf.org
> https://www.ietf.org/mailman/listinfo/rtgwg
>


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To: Xufeng Liu 
Cc: Benoit Claise , Robert Wilton , Mahesh Jethanandani , "yang-doctors@ietf.org" , "ietf@ietf.org" , "teas@ietf.org" , "draft-ietf-teas-yang-te-topo.all@ietf.org" 
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On Thu, Jun 22, 2017 at 01:43:55PM +0000, Xufeng Liu wrote:

> [Xufeng] The I2RS topology model is already NMDA style, but the NMDA
> models are not immediately implementable without NETCONF/RESTCONF
> protocol update. We will need the "-state" module for the I2RS
> topology model (and for all the top-level models) for now. While the
> NMDA is nice, the NMDA discussions have already significantly
> delayed publishing new models, and doing NMDA without staging will
> further delay the process.

Can the config and state trees reasonably be different, i.e., do you
need to be able to distinguish intended config from applied config? If
not, I think you can implement NMDA today without waiting for
NETCONF/RESTCONF protocol updates.

/js

-- 
Juergen Schoenwaelder           Jacobs University Bremen gGmbH
Phone: +49 421 200 3587         Campus Ring 1 | 28759 Bremen | Germany
Fax:   +49 421 200 3103         


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On Thu, Jun 22, 2017 at 11:53:01AM +0200, Benoit Claise wrote:

> How many YANG doctors will we see in the hackathon ...

I will most likely arrive Sunday afternoon, too late for the
hackathon.

/js

-- 
Juergen Schoenwaelder           Jacobs University Bremen gGmbH
Phone: +49 421 200 3587         Campus Ring 1 | 28759 Bremen | Germany
Fax:   +49 421 200 3103         


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I arrive Sat. afternoon.

> On Jun 26, 2017, at 9:39 AM, Juergen Schoenwaelder =
 wrote:
>=20
> On Thu, Jun 22, 2017 at 11:53:01AM +0200, Benoit Claise wrote:
>=20
>> How many YANG doctors will we see in the hackathon ...
>=20
> I will most likely arrive Sunday afternoon, too late for the
> hackathon.
>=20
> /js
>=20
> --=20
> Juergen Schoenwaelder           Jacobs University Bremen gGmbH
> Phone: +49 421 200 3587         Campus Ring 1 | 28759 Bremen | Germany
> Fax:   +49 421 200 3103         
>=20
> _______________________________________________
> yang-doctors mailing list
> yang-doctors@ietf.org
> https://www.ietf.org/mailman/listinfo/yang-doctors

Mahesh Jethanandani
mjethanandani@gmail.com




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Hi,

me too, but not going to the hackathon.

Andy


On Mon, Jun 26, 2017 at 4:45 PM, Mahesh Jethanandani <
mjethanandani@gmail.com> wrote:

> I arrive Sat. afternoon.
>
> > On Jun 26, 2017, at 9:39 AM, Juergen Schoenwaelder <
> j.schoenwaelder@jacobs-university.de> wrote:
> >
> > On Thu, Jun 22, 2017 at 11:53:01AM +0200, Benoit Claise wrote:
> >
> >> How many YANG doctors will we see in the hackathon ...
> >
> > I will most likely arrive Sunday afternoon, too late for the
> > hackathon.
> >
> > /js
> >
> > --
> > Juergen Schoenwaelder           Jacobs University Bremen gGmbH
> > Phone: +49 421 200 3587         Campus Ring 1 | 28759 Bremen | Germany
> > Fax:   +49 421 200 3103         
> >
> > _______________________________________________
> > yang-doctors mailing list
> > yang-doctors@ietf.org
> > https://www.ietf.org/mailman/listinfo/yang-doctors
>
> Mahesh Jethanandani
> mjethanandani@gmail.com
>
>
>
> _______________________________________________
> yang-doctors mailing list
> yang-doctors@ietf.org
> https://www.ietf.org/mailman/listinfo/yang-doctors
>

--001a1146bd9274bbcb0552e5b138
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Hi,

me too, but not going to the hackat=
hon.

Andy


On Mon, Jun 26, 2017 at 4:45 PM=
, Mahesh Jethanandani <mjethanandani@gmail.com> wrote:=

I arrive Sat. afternoon.



> On Jun 26, 2017, at 9:39 AM, Juergen Schoenwaelder <j.schoenwaelder@jacobs-univer=
sity.de> wrote:

>

> On Thu, Jun 22, 2017 at 11:53:01AM +0200, Benoit Claise wrote:

>

>> How many YANG doctors will we see in the hackathon ...

>

> I will most likely arrive Sunday afternoon, too late for the

> hackathon.

>

> /js

>

> --

> Juergen Schoenwaelder=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0Jacobs U=
niversity Bremen gGmbH

> Phone: +49 421 200 3587=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0Campus Ring 1=
 | 28759 Bremen | Germany

> Fax:=C2=A0 =C2=A0+49 421 200 3103=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0<=
;http://www.jacobs-university.de/>

>

> _______________________________________________

> yang-doctors mailing list

> yang-doctors@ietf.org

> https://www.ietf.org/mailman/listinfo/ya=
ng-doctors



Mahesh Jethanandani

mjethanandani@gmail.com







_______________________________________________

yang-doctors mailing list

yang-doctors@ietf.org

https://www.ietf.org/mailman/listinfo/yang-do=
ctors





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From: Benoit Claise 
To: Andy Bierman 
Cc: YANG Doctors , "Joe Clarke (jclarke)" 
References: <90f1c2cb-8c53-f981-0430-94dc1fa21e56@cisco.com>  <9ec80a7d-da0b-29ff-c688-939216046834@cisco.com>
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Subject: Re: [yang-doctors] Do we need a YANG doctor lunch meeting at the IETF meeting? Meeting move from Tuesday lunch to Thursday lunch
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As the subject says: Meeting move from Tuesday lunch to Thursday lunch
Tuesday, there is a 3GPP/IETF/5G collaboration meeting I need to attend.

Regards, B.
> Ok, I booked a room for Tuesday lunch time.
> Since it concerns Joe Clarke, cc'ing Joe Clarke.
>
> Regards, Benoit
>> Hi,
>>
>> I have a topic that is probably not workable but the issue is very 
>> common.
>>
>> It would be nice if YANG library repositories were more consistent 
>> and official.
>> There is currently a ban against packaging YANG modules (e.g., RPM or 
>> Debian)
>> because of concerns the IETF Trust copyright will be violated somehow.
>> Maybe this could be changed somehow.
>>
>> The packages could correlate to the YANG catalog, e.g. an 
>> ietf-routing_1.0.deb package.
>> I have been advocating YANG packages for a few years. IMO it is 
>> hopelessly futile to
>> attempt to manage a device as a random collection of individual modules.
>>
>> I have been working on Yocto/bitbake recently and the amount of 
>> high-quality
>> tools (see OpenEmbedded) is quite impressive. We could have something 
>> like a bitbake recipe
>> that describes the YANG requirements for some service or feature 
>> package.  Vendors could
>> append the recipes to optimize for their platforms. Recipes could 
>> point at open-source code
>> or even vendor libraries that provides instrumentation for a YANG 
>> package.
>> We need distributed recipes, not a centralized catalog server, 
>> although they could work together.
>
>>
>>
>>
>>
>> Andy
>>
>>
>>
>>
>>
>>
>> On Tue, Jun 20, 2017 at 9:26 AM, Benoit Claise > > wrote:
>>
>>     Regards, Benoit
>>
>>     _______________________________________________
>>     yang-doctors mailing list
>>     yang-doctors@ietf.org 
>>     https://www.ietf.org/mailman/listinfo/yang-doctors
>>     
>>
>>
>
>
>
> _______________________________________________
> yang-doctors mailing list
> yang-doctors@ietf.org
> https://www.ietf.org/mailman/listinfo/yang-doctors


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As the subject says: Meeting move from
      Tuesday lunch to Thursday lunch

      Tuesday, there is a 3GPP/IETF/5G collaboration meeting I need to
      attend.

      

      Regards, B.

    

    

      
      
Ok, I booked a room for Tuesday lunch
        time.

        Since it concerns Joe Clarke, cc'ing Joe Clarke.

        

        Regards, Benoit

      

      

        
Hi,
          


          

          
I have a topic that is probably not workable but the
            issue is very common.

          


          

          
It would be nice if YANG library repositories were more
            consistent and official.

          
There is currently a ban against packaging YANG modules
            (e.g., RPM or Debian)

          
because of concerns the IETF Trust copyright will be
            violated somehow.

          
Maybe this could be changed somehow.

          


          

          
The packages could correlate to the YANG catalog, e.g. an
            ietf-routing_1.0.deb package.

          
I have been advocating YANG packages for a few years. IMO
            it is hopelessly futile to

          
attempt to manage a device as a random collection of
            individual modules.

          


          

          
I have been working on Yocto/bitbake recently and the
            amount of high-quality

          
tools (see OpenEmbedded) is quite impressive. We could
            have something like a bitbake recipe

          
that describes the YANG requirements for some service or
            feature package.  Vendors could

          
append the recipes to optimize for their platforms.
            Recipes could point at open-source code

          
or even vendor libraries that provides instrumentation
            for a YANG package.

          
We need distributed recipes, not a centralized catalog
            server, although they could work together.

        

      

      

      

        

          


          

          


          

          


          

          


          

          
Andy

          


          

          


          

          


          

          


          

          


          

        

        


          
On Tue, Jun 20, 2017 at 9:26 AM,
            Benoit Claise <bclaise@cisco.com>
            wrote:

            
Regards,
              Benoit

              

              _______________________________________________

              yang-doctors mailing list

              yang-doctors@ietf.org

              https://www.ietf.org/mailman/listinfo/yang-doctors

            

          

          

        

      

      

      

      

      

      
_______________________________________________
yang-doctors mailing list
yang-doctors@ietf.org
https://www.ietf.org/mailman/listinfo/yang-doctors


    

    

  


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From: "Mehmet Ersue" 
To: "'Andy Bierman'" , "'Mahesh Jethanandani'" 
Cc: "'YANG Doctors'" 
References: <90f1c2cb-8c53-f981-0430-94dc1fa21e56@cisco.com>     <20170626163923.GB3341@elstar.local> <95795117-4F9A-4B16-A83B-EDA607847AFC@gmail.com> 
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Subject: Re: [yang-doctors] Do we need a YANG doctor lunch meeting at the IETF meeting?
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same

=20

Cheers,

Mehmet

=20

From: yang-doctors [mailto:yang-doctors-bounces@ietf.org] On Behalf Of =
Andy Bierman
Sent: Tuesday, June 27, 2017 1:56 AM
To: Mahesh Jethanandani 
Cc: YANG Doctors ; Joe Clarke (jclarke) =

Subject: Re: [yang-doctors] Do we need a YANG doctor lunch meeting at =
the IETF meeting?

=20

Hi,

=20

me too, but not going to the hackathon.

=20

Andy

=20

=20

On Mon, Jun 26, 2017 at 4:45 PM, Mahesh Jethanandani =
 > wrote:

I arrive Sat. afternoon.

> On Jun 26, 2017, at 9:39 AM, Juergen Schoenwaelder =
 > wrote:
>
> On Thu, Jun 22, 2017 at 11:53:01AM +0200, Benoit Claise wrote:
>
>> How many YANG doctors will we see in the hackathon ...
>
> I will most likely arrive Sunday afternoon, too late for the
> hackathon.
>
> /js
>
> --
> Juergen Schoenwaelder           Jacobs University Bremen gGmbH
> Phone: +49 421 200 3587         Campus Ring 1 | 28759 Bremen | Germany
> Fax:   +49 421 200 3103         
>
> _______________________________________________
> yang-doctors mailing list
> yang-doctors@ietf.org =20
> https://www.ietf.org/mailman/listinfo/yang-doctors

Mahesh Jethanandani
mjethanandani@gmail.com =20



_______________________________________________
yang-doctors mailing list
yang-doctors@ietf.org =20
https://www.ietf.org/mailman/listinfo/yang-doctors

=20


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same
 
Cheers,
Mehmet
 
From: =
yang-doctors [mailto:yang-doctors-bounces@ietf.org] On Behalf Of =
Andy Bierman
Sent: Tuesday, June 27, 2017 1:56 =
AM
To: Mahesh Jethanandani =
<mjethanandani@gmail.com>
Cc: YANG Doctors =
<yang-doctors@ietf.org>; Joe Clarke (jclarke) =
<jclarke@cisco.com>
Subject: Re: [yang-doctors] Do we =
need a YANG doctor lunch meeting at the IETF =
meeting?
 
Hi,
 
me too, but not going to the =
hackathon.
 
Andy
 
 
On Mon, =
Jun 26, 2017 at 4:45 PM, Mahesh Jethanandani <mjethanandani@gmail.com> =
wrote:
I arrive =
Sat. afternoon.

> On Jun 26, 2017, at 9:39 AM, Juergen =
Schoenwaelder <j.schoenwaelder@jaco=
bs-university.de> wrote:
>
> On Thu, Jun 22, 2017 at =
11:53:01AM +0200, Benoit Claise wrote:
>
>> How many YANG =
doctors will we see in the hackathon ...
>
> I will most =
likely arrive Sunday afternoon, too late for the
> =
hackathon.
>
> /js
>
> --
> Juergen =
Schoenwaelder           Jacobs University =
Bremen gGmbH
> Phone: +49 421 200 3587        =
 Campus Ring 1 | 28759 Bremen | Germany
> Fax:  =
 +49 421 200 3103         <http://www.jacobs-university.de/>
>
>=
; _______________________________________________
> yang-doctors =
mailing list
> yang-doctors@ietf.org
> =
https://www.ietf.org/mailman/listinfo/yang-doctors<=
br>
Mahesh Jethanandani
mjethanandani@gmail.com


_______________________________________________
yang-doctors=
 mailing list
yang-doctors@ietf.org
https://www.ietf.org/mailman/listinfo/yang-doctors<=
o:p>
 

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From: Toerless Eckert 
To: yang-doctors@ietf.org
Cc: draft-ietf-anima-voucher@ietf.org, anima@ietf.org
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Dear Yang doctors

In our draft-ietf-anima-voucher we are looking for an optional extension mechanism
wheeby a yang data structure we define in the draft shuold optionally be able
to have a substructure that we would like to possibly be defined by a different
standards body than the IETF. Do we have such an extension mechanism ? If not
in Yang natively, maybe via a mechanism of specific encodings ? We are planning
to mandate JSON as the encoding for our protocols using the data model.

Thanks
    Toerless


From nobody Tue Jun 27 08:17:40 2017
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Subject: Re: [yang-doctors] anima/yang-doctors: cross stds boddy extension mechanism ?
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Hi,

Toerless Eckert  wrote:
> Dear Yang doctors
> 
> In our draft-ietf-anima-voucher we are looking for an optional
> extension mechanism
> wheeby a yang data structure we define in the draft shuold optionally
> be able
> to have a substructure that we would like to possibly be defined by a
> different
> standards body than the IETF. Do we have such an extension mechanism ?

Unfortunately not :(   YANG has the "augment" statement, but it can
not augment a structure that has been defined with the extension
"rc:yang-data".  (For this reason, I have proposed that YANG should
have a core statement to define structures, instead of having to rely
on rc:yang-data, but this requires a new YANG version...)

Of course, one *could* define another extension statement
"augment-yang-data" for this purpose, but it's probably not a good
idea; we should be careful with defining extensions... 


/martin



> If not
> in Yang natively, maybe via a mechanism of specific encodings ? We are
> planning
> to mandate JSON as the encoding for our protocols using the data
> model.
> 
> Thanks
>     Toerless
> 
> _______________________________________________
> yang-doctors mailing list
> yang-doctors@ietf.org
> https://www.ietf.org/mailman/listinfo/yang-doctors
> 


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From: "Mehmet Ersue" 
To: "'YANG Doctors'" 
Cc: "'Benoit Claise'" , "'Dan Romascanu'" 
Date: Wed, 28 Jun 2017 16:22:05 +0200
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Subject: [yang-doctors] Re-review of YANG Modules following the NMDA Guidelines WAS:RE: Fwd: Important: Guidelines for YANG module authors
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Dear YANG Doctors,

=20

following Benoit's request I'm going to restart the review of the YANG
modules listed below to achieve the NMDA compliance.

Please use for your review the criteria and guidelines in:

https://datatracker.ietf.org/doc/draft-dsdt-nmda-guidelines/

If there is any issue or unclear guideline we need to clarify this on =
YANG
Doctors maillist.

=20

I would like to ask you to finish your review at the latest during or =
right
after the IETF week=20

so that we can give the draft authors feedback as early as possible
(potentially during IETF #99).

=20

Currently running reviews should already consider the NMDA guidelines.=20

These are:

=20
 draft-ietf-i2rs-yang-l3-topology-09           Ladislav =
Lhotka=20

=20
 draft-ietf-rtgwg-device-model-02             Giles Heron=20

=20
 draft-ietf-mpls-ldp-yang-01                         Dean Bogdanovic=20

=20
 draft-ietf-netmod-syslog-model-12          Kent Watsen=20

=20

=20

Below are the drafts which need to be re-reviewed by original reviewers. =


- To enter your review result please click on the draft name (on the =
page
for closed reviews:

https://datatracker.ietf.org/group/yangdoctors/reviews/?since=3Dall#close=
d-rev
iew-requests)

- Please use the button "Correct review" to enter the review results.

- Please send an email to the authors AND YANG Doctors maillist.

=20

 =

draft-ietf-pim-yang-00                             Dean Bogdanovic
Ready with Issues=20

NOTE: Publication requested, not yet in IETF LC, i.e. an urgent review =
is
very useful.

=20

=20
 draft-ietf-l3sm-l3vpn-service-model-16          Giles =
Heron
Ready=20

NOTE: Already published. Review can be useful.

=20

=20
 draft-ietf-netmod-intf-ext-yang-04           Andy Bierman
Almost Ready=20

=20
 draft-ietf-netconf-yang-push-04                 Bert Wijnen
On the Right Track=20

=20

=20
 draft-ietf-i2rs-yang-l3-topology-02           Carl Moberg
Ready with Issues=20

=20
 draft-ietf-lime-yang-oam-model-08         Carl Moberg       On =
the
Right Track=20

=20

draft-ietf-lime-yang-connectionless-oam-methods-00Carl Moberg            =
 On
the Right Track=20

=20
 draft-ietf-lime-yang-connectionless-oam-03        =
Carl
Moberg       On the Right Track=20

=20

=20
 draft-ietf-trill-yang-oam                                 Jan =
Lindblad
On the Right Track=20

=20
 draft-ietf-ippm-twamp-yang-00                 Jan Lindblad       =
Ready
with Issues=20

=20
 draft-ietf-pim-igmp-mld-yang-01              Jan Lindblad       =
On
the Right Track=20

=20

=20
 draft-ietf-i2rs-yang-network-topo-02      Kent Watsen
Almost Ready=20

=20
 draft-ietf-rtgwg-yang-rip-02                        Ladislav Lhotka
Ready with Issues=20

=20
 draft-ietf-rtgwg-yang-key-chain-13          Ladislav Lhotka
Almost Ready=20

=20

=20
 draft-ietf-teas-yang-te-topo-08                  Mahesh =
Jethanandani
Ready with Issues=20

=20
 draft-ietf-netmod-acl-model-07                 Mahesh =
Jethanandani
Ready with Issues=20

=20

=20
 draft-ietf-rtgwg-ni-model-02                       Martin Bjorklund
Not Ready=20

=20
 draft-ietf-rtgwg-lne-model-02                    Martin Bjorklund
Ready with Issues=20

 =

draft-ietf-lmap-yang-05                                 Martin Bjorklund
Ready with Issues=20

=20

=20
 draft-ietf-rtgwg-routing-types                    Radek =
Krej=E8=ED
Ready with Nits=20

=20
 draft-ietf-rtgwg-yang-vrrp-01                     Radek Krej=E8=ED
Ready with Issues=20

=20

Many Thanks for your efforts.

=20

Cheers,

Mehmet

=20

From: yang-doctors [ 
mailto:yang-doctors-bounces@ietf.org] On Behalf Of Benoit Claise
Sent: Monday, June 26, 2017 1:01 PM
To: YANG Doctors <  =
yang-doctors@ietf.org>;
Robert Wilton -X (rwilton - Ensoft Ltd at Cisco) <
 rwilton@cisco.com>; < =

rtg-ads@ietf.org> <  rtg-ads@ietf.org>;
 ops-ads@ietf.org
Subject: Re: [yang-doctors] Fwd: Important: Guidelines for YANG module
authors

=20

Dear YANG doctors,

Thinking some more about it, I believe we want to review one more time =
the
already-reviewed YANG modules to flag whether they align with the =
guidelines
below.
Background: the TEAS YANG module draft-ietf-teas-yang-te-topo, which =
we're
discussing now.=20
On this specific one, not only it's not aligned with the NMDA =
guidelines,
but he doesn't align with any of of the known YANG module structure, as =
Rob
mentioned:

My comment actually relates to the fact the structure used by TE YANG
modules don't match any other YANG modules - they are using their own =
unique
style of structure.

Practically, it means that this YANG module will be hard to integrate.

Regards, Benoit   =20

Dear YANG doctors,

Here is an important message for your YANG doctor reviews.
Rob Wilton developed some tooling to help YANG module designers to
transition to NMDA.

Rob, would you mind explaining to everybody on this list, and maybe on =
the
NETMOD if you believe this is relevant for everybody.

Regards, Benoit

-------- Forwarded Message --------=20


Subject:=20

Important: Guidelines for YANG module authors


Date:=20

Fri, 9 Jun 2017 15:56:39 +0200


From:=20

Benoit Claise   


To:=20

NETMOD Working Group   



Dear all,

Now that the new NETMOD and NETCONF charters have been approved, it's =
time
to think about the guidelines for YANG module authors.

The Network Management Datastore Architecture (NMDA) addresses the =
so-called
"OpState problem" that has been the subject of much discussion in the =
IETF.
NMDA is still in development, and there will be a transition period =
before
NMDA solutions are universally available.


The NETMOD Datastore Design Team and the Routing Yang Architecture =
Design
Team have worked with Alia and Benoit to create initial guidelines for =
how
the NMDA, as defined in

draft-ietf-netmod-revised-datastores, impacts Yang models. The

draft-dsdt-nmda-guidelines individual draft was foundational in helping
creating those guidelines.

=20

If you have questions or concerns on how these guidelines should apply =
to
work of interest, please contact your WG Chairs or ADs.

=20

It is our strong recommendation, as ADs with agreement from the NETMOD =
WG
Chairs, that models SHOULD move as quickly as possible to the NMDA. The
specific approach to be taken for models being developed now and during =
the
NMDA transition period should be based on both the expected usage and =
the
maturity of the data model.

1. New models and models that are not concerned with the operational =
state
of configuration information SHOULD immediately be structured to be
NMDA-compatible.

2. Models that require immediate support for "in use" and "system =
created"
information SHOULD be structured for NMDA. Then derived versions of =
these
models SHOULD be created, either by hand or with suitable tools, that =
follow
the current modeling strategies. In some cases, the non-NMDA model may =
be an
existing model and not derived from the NMDA model. In all cases, the =
NMDA
and non-NMDA modules SHOULD be published in the same document, with NMDA
modules in the document main body and the non-NMDA modules in an =
Appendix.
The use of the non-NMDA model will allow temporary bridging of the time
period until NMDA implementations are available. The non-NMDA module =
names
should include '-state' appended.

We would like to thank Kent Watsen, Lou Berger, Rob Wilton, Martin
Bjorklund, Phil Shafer, Acee Lindem, Chris Hopps, Juergen Schoenwaelder, =
and
all others who helped develop these guidelines.

Regards,
Alia Atlas, Routing AD
Deborah Brungard, Routing AD
Alvaro Retana, Routing AD
Warren Kumari, Operations & Management AD=20
Benoit Claise, Operations & Management AD

=20

_______________________________________________

yang-doctors mailing list

  yang-doctors@ietf.org

 
https://www.ietf.org/mailman/listinfo/yang-doctors

=20


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	charset="iso-8859-2"
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Dear YANG =
Doctors,
 
following Benoit’s =
request I’m going to restart the review of the YANG modules listed =
below to achieve the NMDA compliance.
Please use for your =
review the criteria and guidelines in: https://datatracker.ietf.org/doc/draft-dsdt-nmda-gui=
delines/
If there is any issue or unclear guideline we =
need to clarify this on YANG Doctors maillist.
 
I would like to ask you =
to finish your review at the latest during or right after the IETF week =

so that we can give the draft authors feedback =
as early as possible (potentially during IETF =
#99).
 
Currently running =
reviews should already consider the NMDA guidelines. =

These are:
draft-ietf-i2rs-yang-l3-topology-09 =
          Ladislav Lhotka =

draft-ietf-rtgwg-device-model-02 &nb=
sp;           Giles =
Heron 
draft-ietf-mpls-ldp-yang-01  &n=
bsp;      =
            &=
nbsp;   Dean Bogdanovic 
draft-ietf-netmod-syslog-model-12 &n=
bsp;        Kent Watsen =

 
 
Below are the drafts =
which need to be re-reviewed by original reviewers. =

- To enter your review result please click on =
the draft name (on the page for closed reviews:
https://datatracker.ietf.org/group/yangdoctors=
/reviews/?since=3Dall#closed-review-requests)
- Please use the button =
“Correct review” to enter the review =
results.
- Please send an email to the authors AND YANG =
Doctors maillist.
 
draft-ietf-pim-yang-00 =
            =
            &=
nbsp;   Dean Bogdanovic =
            Ready =
with Issues 
NOTE: Publication requested, not yet in IETF LC, =
i.e. an urgent review is very useful.
 
draft-ietf-l3sm-l3vpn-service-model-16 =
         Giles Heron =
        Ready =

NOTE: Already published. Review can be =
useful.
 
draft-ietf-netmod-intf-ext-yang-04 &=
nbsp;         Andy Bierman =
   Almost Ready 
draft-ietf-netconf-yang-push-04 =
            &=
nbsp;   Bert Wijnen        On =
the Right Track 
 
draft-ietf-i2rs-yang-l3-topology-02 =
          Carl Moberg =
      Ready with Issues =

draft-ietf-lime-yang-oam-model-08 &n=
bsp;       Carl Moberg =
      On the Right Track =

draft-ietf-lime-yang-connectionless-oam-methods-00Carl Moberg =
            On =
the Right Track 
draft-ietf-lime-yang-connectionless-oam-03        Carl Moberg =
      On the Right Track =

 
draft-ietf-trill-yang-oam =
            &=
nbsp;           &n=
bsp;       Jan Lindblad =
      On the Right Track =

draft-ietf-ippm-twamp-yang-00 =
            &=
nbsp;   Jan Lindblad       Ready with =
Issues 
draft-ietf-pim-igmp-mld-yang-01 &nbs=
p;            Jan =
Lindblad       On the Right Track =

 
draft-ietf-i2rs-yang-network-topo-02 =
;     Kent Watsen      Almost =
Ready 
draft-ietf-rtgwg-yang-rip-02  &=
nbsp;     =
            &=
nbsp;   Ladislav Lhotka Ready with Issues =

draft-ietf-rtgwg-yang-key-chain-13 &=
nbsp;        Ladislav Lhotka Almost =
Ready 
 
draft-ietf-teas-yang-te-topo-08  =
            &=
nbsp;   Mahesh Jethanandani Ready with Issues =

draft-ietf-netmod-acl-model-07 =
            &=
nbsp;   Mahesh Jethanandani Ready with Issues =

 
draft-ietf-rtgwg-ni-model-02  &=
nbsp;    =
            &=
nbsp;   Martin Bjorklund =
             =
Not Ready 
draft-ietf-rtgwg-lne-model-02  =
  =
            &=
nbsp;   Martin Bjorklund =
             =
Ready with Issues 
draft-ietf-lmap-yang-05 =
            &=
nbsp;           &n=
bsp;       Martin Bjorklund =
             =
Ready with Issues 
 
draft-ietf-rtgwg-routing-types  =
;  =
            &=
nbsp;   Radek Krej=E8=ED       Ready =
with Nits 
draft-ietf-rtgwg-yang-vrrp-01  =
   =
            &=
nbsp;   Radek Krej=E8=ED       Ready =
with Issues 
 
Many Thanks for your =
efforts.
 
Cheers,
Mehmet
 
From: yang-doctors [mailto:yang-doctors-bounces@ietf.org] =
On Behalf Of Benoit Claise
Sent: Monday, June 26, 2017 =
1:01 PM
To: YANG Doctors <yang-doctors@ietf.org>; Robert Wilton =
-X (rwilton - Ensoft Ltd at Cisco) <rwilton@cisco.com>; <rtg-ads@ietf.org> <rtg-ads@ietf.org>; ops-ads@ietf.org
Subject: Re: =
[yang-doctors] Fwd: Important: Guidelines for YANG module =
authors
 
Dear YANG =
doctors,

Thinking some more about it, I believe we want to review =
one more time the already-reviewed YANG modules to flag whether they =
align with the guidelines below.
Background: the TEAS YANG module =
draft-ietf-teas-yang-te-topo, which we're discussing now. 
On this =
specific one, not only it's not aligned with the NMDA guidelines, but he =
doesn't align with any of of the known YANG module structure, as Rob =
mentioned:
My comment actually relates to the fact the =
structure used by TE YANG modules don't match any other YANG modules - =
they are using their own unique style of =
structure.
Practically, it means that this YANG module will =
be hard to integrate.

Regards, Benoit    =

Dear YANG =
doctors,

Here is an important message for your YANG doctor =
reviews.
Rob Wilton developed some tooling to help YANG module =
designers to transition to NMDA.

Rob, would you mind explaining =
to everybody on this list, and maybe on the NETMOD if you believe this =
is relevant for everybody.

Regards, =
Benoit
-------- Forwarded Message -------- =

Subject: =

Important: Guidelines for =
YANG module authors
Date: 
Fri, 9 Jun 2017 15:56:39 =
+0200
From: =

Benoit Claise <bclaise@cisco.com>
To: =

NETMOD Working Group <netmod@ietf.org>=



Dear all,

Now that the new NETMOD =
and NETCONF charters have been approved, it's time to think about the =
guidelines for YANG module authors.

The Network Management =
Datastore Architecture (NMDA) addresses the so-called "OpState =
problem" that has been the subject of much discussion in the IETF. =
NMDA is still in development, and there will be a transition period =
before NMDA solutions are universally available.

The NETMOD Datastore =
Design Team and the Routing Yang Architecture Design Team have worked =
with Alia and Benoit to create initial guidelines for how the NMDA, as =
defined in draft-ietf-netmod-revised-datastores, =
impacts Yang models. The draft-dsdt-nmda-guidelines individual =
draft was foundational in helping creating those =
guidelines.
 
If you have questions or =
concerns on how these guidelines should apply to work of interest, =
please contact your WG Chairs or ADs.
 
It is our strong =
recommendation, as ADs with agreement from the NETMOD WG Chairs, that =
models SHOULD move as quickly as possible to the NMDA. The specific =
approach to be taken for models being developed now and during the NMDA =
transition period should be based on both the expected usage and the =
maturity of the data model.

1. New models and models that are not =
concerned with the operational state of configuration information SHOULD =
immediately be structured to be NMDA-compatible.

2. Models that =
require immediate support for "in use" and "system =
created" information SHOULD be structured for NMDA. Then derived =
versions of these models SHOULD be created, either by hand or with =
suitable tools, that follow the current modeling strategies. In some =
cases, the non-NMDA model may be an existing model and not derived from =
the NMDA model. In all cases, the NMDA and non-NMDA modules SHOULD be =
published in the same document, with NMDA modules in the document main =
body and the non-NMDA modules in an Appendix. The use of the non-NMDA =
model will allow temporary bridging of the time period until NMDA =
implementations are available. The non-NMDA module names should include =
’-state’ appended.

We would like to thank Kent =
Watsen, Lou Berger, Rob Wilton, Martin Bjorklund, Phil Shafer, Acee =
Lindem, Chris Hopps, Juergen Schoenwaelder, and all others who helped =
develop these guidelines.

Regards,
Alia Atlas, Routing =
AD
Deborah Brungard, Routing AD
Alvaro Retana, Routing =
AD
Warren Kumari, Operations & Management AD 
Benoit Claise, =
Operations & Management AD
 
_______________________________________________
yang-doctors mailing list
yang-doctors@ietf.org
https://www.ietf.org/mailman/listinfo/yang-doctors
 

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References: <007e01d2f019$eb5d13c0$c2173b40$@gmail.com>
From: Andy Bierman 
Date: Wed, 28 Jun 2017 08:42:41 -0700
Message-ID: 
To: Mehmet Ersue 
Cc: YANG Doctors , Dan Romascanu 
Content-Type: multipart/alternative; boundary="001a1146bd92de1bb30553070896"
Archived-At: 
Subject: Re: [yang-doctors] Re-review of YANG Modules following the NMDA Guidelines WAS:RE: Fwd: Important: Guidelines for YANG module authors
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Hi,

I think it is quite risky to start rewriting YANG modules when the RD
protocol interaction
models are still undefined.

I still cannot get an answer why I only needed 1 capability URI to say "all
writable YANG modules
can be edited via the candidate config"  but now with RD I need to specify
a mapping
for each module to each datastore it can be used in.  I don't recall
anything like
this in the form of requirements from openconfig.  I have not heard any
use-cases
at all for this mapping other than "an agent might want to do this", which
is not a use-case.


Andy



On Wed, Jun 28, 2017 at 7:22 AM, Mehmet Ersue  wrote:

> Dear YANG Doctors,
>
>
>
> following Benoit=E2=80=99s request I=E2=80=99m going to restart the revie=
w of the YANG
> modules listed below to achieve the NMDA compliance.
>
> Please use for your review the criteria and guidelines in:
> https://datatracker.ietf.org/doc/draft-dsdt-nmda-guidelines/
>
> If there is any issue or unclear guideline we need to clarify this on YAN=
G
> Doctors maillist.
>
>
>
> I would like to ask you to finish your review at the latest during or
> right after the IETF week
>
> so that we can give the draft authors feedback as early as possible
> (potentially during IETF #99).
>
>
>
> Currently running reviews should already consider the NMDA guidelines.
>
> These are:
>
> draft-ietf-i2rs-yang-l3-topology-09
> 
> Ladislav Lhotka
>
> draft-ietf-rtgwg-device-model-02
> 
> Giles Heron
>
> draft-ietf-mpls-ldp-yang-01
> 
>                          Dean Bogdanovic
>
> draft-ietf-netmod-syslog-model-12
> 
> Kent Watsen
>
>
>
>
>
> Below are the drafts which need to be re-reviewed by original reviewers.
>
> - To enter your review result please click on the draft name (on the page
> for closed reviews:
>
> https://datatracker.ietf.org/group/yangdoctors/reviews/?
> since=3Dall#closed-review-requests)
>
> - Please use the button =E2=80=9CCorrect review=E2=80=9D to enter the rev=
iew results.
>
> - Please send an email to the authors AND YANG Doctors maillist.
>
>
>
> draft-ietf-pim-yang-00
> 
>                             Dean Bogdanovic             Ready with Issues
>
> *NOTE: Publication requested, not yet in IETF LC, i.e. an urgent review i=
s
> very useful.*
>
>
>
> draft-ietf-l3sm-l3vpn-service-model-16
> 
>          Giles Heron         Ready
>
> *NOTE: Already published. Review can be useful.*
>
>
>
> draft-ietf-netmod-intf-ext-yang-04
> 
> Andy Bierman    Almost Ready
>
> draft-ietf-netconf-yang-push-04
> 
>                 Bert Wijnen        On the Right Track
>
>
>
> draft-ietf-i2rs-yang-l3-topology-02
> 
> Carl Moberg       Ready with Issues
>
> draft-ietf-lime-yang-oam-model-08
> 
> Carl Moberg       On the Right Track
>
> draft-ietf-lime-yang-connectionless-oam-methods-00
> 
> Carl Moberg             On the Right Track
>
> draft-ietf-lime-yang-connectionless-oam-03
> 
> Carl Moberg       On the Right Track
>
>
>
> draft-ietf-trill-yang-oam
> 
>                                 Jan Lindblad       On the Right Track
>
> draft-ietf-ippm-twamp-yang-00
> 
>                 Jan Lindblad       Ready with Issues
>
> draft-ietf-pim-igmp-mld-yang-01
> 
> Jan Lindblad       On the Right Track
>
>
>
> draft-ietf-i2rs-yang-network-topo-02
> 
> Kent Watsen      Almost Ready
>
> draft-ietf-rtgwg-yang-rip-02
> 
>                         Ladislav Lhotka Ready with Issues
>
> draft-ietf-rtgwg-yang-key-chain-13
> 
> Ladislav Lhotka Almost Ready
>
>
>
> draft-ietf-teas-yang-te-topo-08
> 
>                 Mahesh Jethanandani Ready with Issues
>
> draft-ietf-netmod-acl-model-07
> 
>                 Mahesh Jethanandani Ready with Issues
>
>
>
> draft-ietf-rtgwg-ni-model-02
> 
>                        Martin Bjorklund              Not Ready
>
> draft-ietf-rtgwg-lne-model-02
> 
>                     Martin Bjorklund              Ready with Issues
>
> draft-ietf-lmap-yang-05
> 
>                                 Martin Bjorklund              Ready with
> Issues
>
>
>
> draft-ietf-rtgwg-routing-types
> 
>                 Radek Krej=C4=8D=C3=AD       Ready with Nits
>
> draft-ietf-rtgwg-yang-vrrp-01
> 
>                      Radek Krej=C4=8D=C3=AD       Ready with Issues
>
>
>
> Many Thanks for your efforts.
>
>
>
> Cheers,
>
> Mehmet
>
>
>
> *From:* yang-doctors [mailto:yang-doctors-bounces@ietf.org
> ] *On Behalf Of *Benoit Claise
> *Sent:* Monday, June 26, 2017 1:01 PM
> *To:* YANG Doctors ; Robert Wilton -X (rwilton -
> Ensoft Ltd at Cisco) ;  <
> rtg-ads@ietf.org>; ops-ads@ietf.org
> *Subject:* Re: [yang-doctors] Fwd: Important: Guidelines for YANG module
> authors
>
>
>
> Dear YANG doctors,
>
> Thinking some more about it, I believe we want to review one more time th=
e
> already-reviewed YANG modules to flag whether they align with the
> guidelines below.
> Background: the TEAS YANG module draft-ietf-teas-yang-te-topo, which we'r=
e
> discussing now.
> On this specific one, not only it's not aligned with the NMDA guidelines,
> but he doesn't align with any of of the known YANG module structure, as R=
ob
> mentioned:
>
> My comment actually relates to the fact the structure used by TE YANG
> modules don't match any other YANG modules - they are using their own
> unique style of structure.
>
> Practically, it means that this YANG module will be hard to integrate.
>
> Regards, Benoit
>
> Dear YANG doctors,
>
> Here is an important message for your YANG doctor reviews.
> Rob Wilton developed some tooling to help YANG module designers to
> transition to NMDA.
>
> Rob, would you mind explaining to everybody on this list, and maybe on th=
e
> NETMOD if you believe this is relevant for everybody.
>
> Regards, Benoit
>
> -------- Forwarded Message --------
>
> *Subject: *
>
> Important: Guidelines for YANG module authors
>
> *Date: *
>
> Fri, 9 Jun 2017 15:56:39 +0200
>
> *From: *
>
> Benoit Claise  
>
> *To: *
>
> NETMOD Working Group  
>
>
>
> Dear all,
>
> Now that the new NETMOD and NETCONF charters have been approved, it's tim=
e
> to think about the guidelines for YANG module authors.
>
> The Network Management Datastore Architecture (NMDA) addresses the
> so-called "OpState problem" that has been the subject of much discussion =
in
> the IETF. NMDA is still in development, and there will be a transition
> period before NMDA solutions are universally available.
>
>
> The NETMOD Datastore Design Team and the Routing Yang Architecture Design
> Team have worked with Alia and Benoit to create initial guidelines for ho=
w
> the NMDA, as defined in draft-ietf-netmod-revised-datastores
> ,
> impacts Yang models. The draft-dsdt-nmda-guidelines
>  individual
> draft was foundational in helping creating those guidelines.
>
>
>
> If you have questions or concerns on how these guidelines should apply to
> work of interest, please contact your WG Chairs or ADs.
>
>
>
> It is our strong recommendation, as ADs with agreement from the NETMOD WG
> Chairs, that models SHOULD move as quickly as possible to the NMDA. The
> specific approach to be taken for models being developed now and during t=
he
> NMDA transition period should be based on both the expected usage and the
> maturity of the data model.
>
> 1. New models and models that are not concerned with the operational stat=
e
> of configuration information SHOULD immediately be structured to be
> NMDA-compatible.
>
> 2. Models that require immediate support for "in use" and "system created=
"
> information SHOULD be structured for NMDA. Then derived versions of these
> models SHOULD be created, either by hand or with suitable tools, that
> follow the current modeling strategies. In some cases, the non-NMDA model
> may be an existing model and not derived from the NMDA model. In all case=
s,
> the NMDA and non-NMDA modules SHOULD be published in the same document,
> with NMDA modules in the document main body and the non-NMDA modules in a=
n
> Appendix. The use of the non-NMDA model will allow temporary bridging of
> the time period until NMDA implementations are available. The non-NMDA
> module names should include =E2=80=99-state=E2=80=99 appended.
>
> We would like to thank Kent Watsen, Lou Berger, Rob Wilton, Martin
> Bjorklund, Phil Shafer, Acee Lindem, Chris Hopps, Juergen Schoenwaelder,
> and all others who helped develop these guidelines.
>
> Regards,
> Alia Atlas, Routing AD
> Deborah Brungard, Routing AD
> Alvaro Retana, Routing AD
> Warren Kumari, Operations & Management AD
> Benoit Claise, Operations & Management AD
>
>
>
> _______________________________________________
>
> yang-doctors mailing list
>
> yang-doctors@ietf.org
>
> https://www.ietf.org/mailman/listinfo/yang-doctors
>
>
>
> _______________________________________________
> yang-doctors mailing list
> yang-doctors@ietf.org
> https://www.ietf.org/mailman/listinfo/yang-doctors
>
>

--001a1146bd92de1bb30553070896
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable


Hi,

I think it is quite risky to start =
rewriting YANG modules when the RD protocol interaction
models ar=
e still undefined.

I still cannot get an answer wh=
y I only needed 1 capability URI to say "all writable YANG modules
can be edited via the candidate config" =C2=A0but now with RD I=
 need to specify a mapping
for each module to each datastore it c=
an be used in.=C2=A0 I don't recall anything like
this in the=
 form of requirements from openconfig.=C2=A0 I have not heard any use-cases=

at all for this mapping other than "an agent might want to =
do this", which is not a use-case.


=

Andy



On Wed, Jun 28, 2017 at 7:22 AM, Mehmet E=
rsue <mersue@gmail.com> wrote:
Dear YANG Doctors,
=C2=A0
following Benoit=E2=80=99s request=
 I=E2=80=99m going to restart the review of the YANG modules listed below t=
o achieve the NMDA compliance.
Please use for your review the criteria an=
d guidelines in: https://datatra=
cker.ietf.org/doc/draft-dsdt-nmda-guidelines/
If the=
re is any issue or unclear guideline we need to clarify this on YANG Doctor=
s maillist.
=C2=A0
I would like to ask you to finish your review at the=
 latest during or right after the IETF week 
so that we can give the draf=
t authors feedback as early as possible (potentially during IETF #99).
=C2=A0
Currently running reviews should already consider the NMDA guideline=
s. 
These are:
draft-ietf-i2rs-yang-l3-topology-09=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Ladislav Lhotka =

draft-ietf-rtgwg-=
device-model-02=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Giles Heron 
draft-ietf-mpls-ldp-yang-01=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 =C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Dean Bogdan=
ovic 
d=
raft-ietf-netmod-syslog-model-12=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0 Kent Watsen 
=C2=A0
=C2=A0<=
/span>
Below are th=
e drafts which need to be re-reviewed by original reviewers. =

- To enter =
your review result please click on the draft name (on the page for closed r=
eviews:
https://datatracker=
.ietf.org/group/yangdoctors/reviews/?since=3Dall#closed-review-requests)
- Please use the button =E2=80=9CCorrect review=E2=80=9D=
 to enter the review results.
- Please send an email to the authors AND Y=
ANG Doctors maillist.
=C2=A0
draft-ietf-pim-yang-00 =C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Dean Bogdanovic =
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Ready wi=
th Issues 
NOTE: Publication requested, not yet in IETF LC, i.e. an ur=
gent review is very useful.
=C2=A0
draft-ietf-l3sm-l3vpn-service-model-16 =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Giles=
 Heron =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Ready 
NOTE: Already=
 published. Review can be useful.
=C2=A0
draft-ietf-netmod-intf-ext-ya=
ng-04=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0 Andy Bierman =C2=A0=C2=A0 Almost Ready 
draft-ietf-netconf-yang-push-04 =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0 Bert Wijnen =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 O=
n the Right Track 
=C2=A0
=
draft-ietf-i2rs-yang-l3-topology-02=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Carl Moberg =
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Ready with Issues 
<=
p class=3D"MsoNormal">draft-ietf-lime-yang-oam-mo=
del-08=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Carl Mobe=
rg =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 On the Right Track <=
/p>
draft-ietf-=
lime-yang-connectionless-oam-methods-00Carl Moberg =C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 On the Righ=
t Track 
draft-ietf-lime-yang-connectionless-oam-03=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Carl Moberg =C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0 On the Right Track 
<=
span style=3D"color:#0000cc">=C2=A0
draft-ietf-trill-yang-oam =C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0 Jan Lindblad =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 O=
n the Right Track 
draft-ietf-ippm-twamp-yang-00 =C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Jan Lind=
blad =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Ready with Issues =

draft-ietf-pim-igmp-mld-yang-=
01=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0 Jan Lindblad =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 On the Ri=
ght Track 
=C2=A0
draft-ietf-i2rs-yang-network-topo-02=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0 Kent Watsen =C2=A0=C2=A0=C2=A0=C2=A0 Almost Ready =

draft-ietf-=
rtgwg-yang-rip-02=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
 =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0 Ladislav Lhotka Ready with Issues <=
/p>
draft-ietf-rtgwg-yang-key-<=
wbr>chain-13=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0 Ladislav Lhotka Almost Ready 
=C2=A0
draft-ietf-teas-yang-te-topo-08=C2=A0 =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Mahesh Jethanandani Ready with Issues 
draft-ietf-netm=
od-acl-model-07 =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Mahesh Jethanandani Ready with I=
ssues 
=C2=A0
draft-ietf-rtgwg-ni-model-02=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0 =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Martin Bjorklund =C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Not Ready 
draft-ietf-rtgwg-lne-model-02=
=C2=A0=C2=A0=C2=A0 =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Martin Bjorklund =C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Ready wi=
th Issues 
draft-=
ietf-lmap-yang-05 =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Mar=
tin Bjorklund =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0 Ready with Issues 
=C2=A0
draft-ietf-rtgwg-routing-types=C2=A0=C2=A0=C2=A0 =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Radek Krej=C4=8D=C3=AD =C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0 Ready with Nits 
draft-ietf-rtgwg-yang-vrrp-01=C2=A0<=
wbr>=C2=A0=C2=A0=C2=A0 =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Radek Krej=C4=8D=C3=AD =C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0 Ready with Issues 
=C2=A0
Many Thanks for your effor=
ts.
=C2=A0
Cheers,
Mehmet
=C2=A0
From: yang-doctors [mailto:yang-do=
ctors-bounces@ietf.org] On Behalf Of Benoit ClaiseSent: Monday, June 26, 2017 1:01 PM
To: YANG Doctors <=
;yang-doctors@ietf.org>; Robert Wilton -X (rwilton=
 - Ensoft Ltd at Cisco) <rwilton@cisco.com>; <rtg-ads@ietf.org> <rtg-ads@ietf.org&g=
t;; ops-ads@ietf.org
Subject: Re: [yang-doctors]=
 Fwd: Important: Guidelines for YANG module authors
=C2=A0
Dear YANG doctors,
<=
br>Thinking some more about it, I believe we want to review one more time t=
he already-reviewed YANG modules to flag whether they align with the guidel=
ines below.
Background: the TEAS YANG module draft-ietf-teas-yang-te-top=
o, which we're discussing now. 
On this specific one, not only it=
9;s not aligned with the NMDA guidelines, but he doesn't align with any=
 of of the known YANG module structure, as Rob mentioned:
My comment actual=
ly relates to the fact the structure used by TE YANG modules don't matc=
h any other YANG modules - they are using their own unique style of structu=
re.
Practically, it means that this YANG module will be hard to integrate.<=
br>
Regards, Benoit =C2=A0=C2=A0 
Dear YA=
NG doctors,

Here is an important message for your YANG doctor review=
s.
Rob Wilton developed some tooling to help YANG module designers to tr=
ansition to NMDA.

Rob, would you mind explaining to everybody on thi=
s list, and maybe on the NETMOD if you believe this is relevant for everybo=
dy.

Regards, Benoit
<=
span style=3D"color:black">-------- Forwarded Message -------- 
Subject: <=
u>
Important: Guidelines for YANG modu=
le authors
Date: 
Fri, 9 Jun 2017 15:56:39 +0200=

From: 
Benoit Claise <bclaise@cisco.com>=

To: =

NETMOD Working Group <netmod@ietf.org>


Dear all,

Now that the ne=
w NETMOD and NETCONF charters have been approved, it's time to think ab=
out the guidelines for YANG module authors.

The Network Management D=
atastore Architecture (NMDA) addresses the so-called "OpState problem&=
quot; that has been the subject of much discussion in the IETF. NMDA is sti=
ll in development, and there will be a transition period before NMDA soluti=
ons are universally available.

The NETMOD Datastore Design Team and the=
 Routing Yang Architecture Design Team have worked with Alia and Benoit to =
create initial guidelines for how the NMDA, as defined in draft-ietf-netmod-revised-datastor=
es, impacts Yang models. The draft-dsdt-nmda-guidelines individual draft was foundati=
onal in helping creating those guidelines.
=C2=A0
<=
p class=3D"MsoNormal">If you have questions or =
concerns on how these guidelines should apply to work of interest, please c=
ontact your WG Chairs or ADs.
=C2=A0
It is our strong recommendation, as AD=
s with agreement from the NETMOD WG Chairs, that models SHOULD move as quic=
kly as possible to the NMDA. The specific approach to be taken for models b=
eing developed now and during the NMDA transition period should be based on=
 both the expected usage and the maturity of the data model.

1. New =
models and models that are not concerned with the operational state of conf=
iguration information SHOULD immediately be structured to be NMDA-compatibl=
e.

2. Models that require immediate support for "in use" a=
nd "system created" information SHOULD be structured for NMDA. Th=
en derived versions of these models SHOULD be created, either by hand or wi=
th suitable tools, that follow the current modeling strategies. In some cas=
es, the non-NMDA model may be an existing model and not derived from the NM=
DA model. In all cases, the NMDA and non-NMDA modules SHOULD be published i=
n the same document, with NMDA modules in the document main body and the no=
n-NMDA modules in an Appendix. The use of the non-NMDA model will allow tem=
porary bridging of the time period until NMDA implementations are available=
. The non-NMDA module names should include =E2=80=99-state=E2=80=99 appende=
d.

We would like to thank Kent Watsen, Lou Berger, Rob Wilton, Marti=
n Bjorklund, Phil Shafer, Acee Lindem, Chris Hopps, Juergen Schoenwaelder, =
and all others who helped develop these guidelines.

Regards,
Alia=
 Atlas, Routing AD
Deborah Brungard, Routing AD
Alvaro Retana, Routin=
g AD
Warren Kumari, Operations & Management AD 
Benoit Claise, Op=
erations & Management AD
=C2=A0
______________________________=
_________________
yang-doctors mailing list
<=
span style=3D"font-size:10.0pt;font-family:"Courier New";color:bl=
ack">yang-doctors@ietf.org
https://www.iet=
f.org/mailman/listinfo/yang-doctors
=C2=A0

___________=
____________________________________

yang-doctors mailing list

yang-doctors@ietf.org

https://www.ietf.org/mailman/listinfo/yang-do=
ctors





--001a1146bd92de1bb30553070896--


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Date: Thu, 29 Jun 2017 07:11:12 +0200
From: Juergen Schoenwaelder 
To: Mehmet Ersue 
Cc: 'YANG Doctors' , 'Dan Romascanu' 
Message-ID: <20170629051112.GB1647@elstar.local>
Reply-To: Juergen Schoenwaelder 
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Subject: Re: [yang-doctors] Re-review of YANG Modules following the NMDA Guidelines WAS:RE: Fwd: Important: Guidelines for YANG module authors
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On Wed, Jun 28, 2017 at 04:22:05PM +0200, Mehmet Ersue wrote:
> 
>  
> draft-ietf-lmap-yang-05                                 Martin Bjorklund
> Ready with Issues 
>

The LMAP YANG modules adopted NMDA style some time ago. This document
is in auth48.

/js

-- 
Juergen Schoenwaelder           Jacobs University Bremen gGmbH
Phone: +49 421 200 3587         Campus Ring 1 | 28759 Bremen | Germany
Fax:   +49 421 200 3103         


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To: IESG IESG 
From: Benoit Claise 
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Date: Thu, 29 Jun 2017 11:19:46 +0200
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Subject: [yang-doctors] Ill => mainly offline
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Dear all,

I'm ill. I'll try to answer emails from time to time, but not guarantee. 
Expect some delays in my replies.
High CPU intensive tasks are excluded at this point.

Regards, Benoit