From nobody Tue Dec 4 09:44:07 2018 Return-Path: X-Original-To: sfc@ietfa.amsl.com Delivered-To: sfc@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id D72BB130FD1; Tue, 4 Dec 2018 09:43:48 -0800 (PST) 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 0bViiM7J3FgL; Tue, 4 Dec 2018 09:43:46 -0800 (PST) Received: from mail-qk1-x729.google.com (mail-qk1-x729.google.com [IPv6:2607:f8b0:4864:20::729]) (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 88B06130FEE; Tue, 4 Dec 2018 09:43:46 -0800 (PST) Received: by mail-qk1-x729.google.com with SMTP id w204so10135594qka.2; Tue, 04 Dec 2018 09:43:46 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:from:date:message-id:subject:to:cc; bh=1cPaMXaxUSk88GQulDR9RIjGQGNAvvbyFgPB5c9vlkY=; b=vgIaXexiYvt1Yq3qxxiDXbs9ot4VnSkcpm4gHuZF1cJRM54w9yTkP+8sixVDvo27+y Nz6yZ1RN6Ne05fV95cUr/p5Zmli+TSfQSFWivczFTWiBwZAINm3hJR9kP9UN3e8EZGdM EGxWFZHiPyqBWAsi/hVXucFAjxClKfGOqu9agEwXIBaMSTiaXTnBOtUZh2/yIVzxpnSv DANrz8/KJ4spXdxZ4bdHS0lE2+gHfv51CmRd9erULArjUc5DobPLScItsqKJC00pPK3h mANo33nSROStzcwIuUs7r55wdIMSEcs0A3oN7a6/TVXFz10ORRDKCT5lSsrsxDT4oEWS Yv/w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to:cc; bh=1cPaMXaxUSk88GQulDR9RIjGQGNAvvbyFgPB5c9vlkY=; b=UbmaOen8Ek+RvBv3naqPm7Ee9TWJXbIHlcPpFmRkyy6qT6IJ8NJuDKXqXlvBbYWbpw Dguts/RSFodmZEuqXkIZuRj9hbM5vdIlw4ETzMCFoXLXv0IccIwnglTMvq1rFbF+lekh gT7lXvoX1OXw/9zVbA0ws3x8G7Rb/qTPW81q4Z2s3UDz2ubxzG7cOGu1dWkgJKcmHgNc neFipgrI3cYE1cKXvGNkm6P5+k7k+X2PxMxrIVGuQOk3PLJa/3g29zGoSx+XK+hdw6tf eMOO2WWrxf2d0YmnXlhwPCNxv8qQwKltDSZTv+QsLUqoLYWr7rEwWv8tGdlYLIkuVIv8 0wzQ== X-Gm-Message-State: AA+aEWZ9N3bogMcrvFl6O0Abbz7gyHtmuGDXm17PM6f0Ap9CYokAkXuw EqCkH/5sxCQIpa7oZvfj61kEtNfB4/3Fj8r/5Pt8uADa X-Google-Smtp-Source: AFSGD/V3kg3B2LEo7DpVzzc4y+LWLG4KDOXT8eiOxD6YktNPn5NheOGFsZzobOjVu6hXuRU1uktD3IXTi96xh3DkpIo= X-Received: by 2002:a37:99c5:: with SMTP id b188mr20298695qke.100.1543945425297; Tue, 04 Dec 2018 09:43:45 -0800 (PST) MIME-Version: 1.0 From: "Andrew G. Malis" Date: Tue, 4 Dec 2018 12:43:34 -0500 Message-ID: To: mpls@ietf.org, mpls-chairs Cc: sfc@ietf.org Content-Type: multipart/alternative; boundary="000000000000a0a49c057c35cec9" Archived-At: Subject: [sfc] MPLS WG LC request for draft-ietf-mpls-sfc-encapsulation-01 X-BeenThere: sfc@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Network Service Chaining List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 04 Dec 2018 17:43:59 -0000 --000000000000a0a49c057c35cec9 Content-Type: text/plain; charset="UTF-8" MPLS WG and Chairs, We (the co-authors) have just updated draft-ietf-mpls-sfc-encapsulation to add additional material to the Security Considerations section. With this update, we believe that this draft is now ready for MPLS WG last call. Given the subject material, I've cc'ed the SFC WG for their information as well. The SFC WG should also be cc'ed on the WG last call. Thanks, Andy (for the authors) --000000000000a0a49c057c35cec9 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
MPLS WG and Chairs,

We= (the co-authors) have just updated=C2=A0draft-ietf-mpls-sfc-encapsulation = to add additional material to the Security Considerations section.

With this update, we believe that this draft is now ready = for MPLS WG last call.

Given the subject material,= I've cc'ed the SFC WG for their information as well. The SFC WG sh= ould also be cc'ed on the WG last call.

Thanks= ,
Andy (for the authors)

--000000000000a0a49c057c35cec9-- From nobody Tue Dec 4 23:52:31 2018 Return-Path: X-Original-To: sfc@ietfa.amsl.com Delivered-To: sfc@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 2942E129533; Tue, 4 Dec 2018 23:52:23 -0800 (PST) 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] 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 9m7wQUDjZugn; Tue, 4 Dec 2018 23:52:21 -0800 (PST) Received: from pipi.pi.nu (pipi.pi.nu [83.168.239.141]) (using TLSv1.1 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id E3E11124D68; Tue, 4 Dec 2018 23:52:20 -0800 (PST) Received: from [192.168.1.20] (unknown [119.94.172.79]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: loa@pi.nu) by pipi.pi.nu (Postfix) with ESMTPSA id 765361802A82; Wed, 5 Dec 2018 08:52:17 +0100 (CET) To: "Andrew G. Malis" , mpls@ietf.org, mpls-chairs Cc: sfc@ietf.org References: From: Loa Andersson Message-ID: Date: Wed, 5 Dec 2018 15:52:14 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.3.2 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 8bit Archived-At: Subject: Re: [sfc] MPLS WG LC request for draft-ietf-mpls-sfc-encapsulation-01 X-BeenThere: sfc@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Network Service Chaining List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 05 Dec 2018 07:52:23 -0000 Andy, et.al., We will do the normal procedue - wg chair review - IPR poll - wglc I will need a few days to review /Loa On 2018-12-05 01:43, Andrew G. Malis wrote: > MPLS WG and Chairs, > > We (the co-authors) have just updated draft-ietf-mpls-sfc-encapsulation > to add additional material to the Security Considerations section. > > With this update, we believe that this draft is now ready for MPLS WG > last call. > > Given the subject material, I've cc'ed the SFC WG for their information > as well. The SFC WG should also be cc'ed on the WG last call. > > Thanks, > Andy (for the authors) > -- Loa Andersson email: loa@pi.nu Senior MPLS Expert Bronze Dragon Consulting phone: +46 739 81 21 64 From nobody Mon Dec 10 22:24:59 2018 Return-Path: X-Original-To: sfc@ietfa.amsl.com Delivered-To: sfc@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 0FE651294D0 for ; Mon, 10 Dec 2018 22:24:58 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.3 X-Spam-Level: X-Spam-Status: No, score=-2.3 tagged_above=-999 required=5 tests=[BAYES_20=-0.001, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_MED=-2.3, SPF_PASS=-0.001, UNPARSEABLE_RELAY=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 Tknlqbq_TAJc for ; Mon, 10 Dec 2018 22:24:55 -0800 (PST) Received: from mxhk.zte.com.cn (mxhk.zte.com.cn [63.217.80.70]) (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 72256129385 for ; 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Tue, 11 Dec 2018 00:30:10 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.701 X-Spam-Level: X-Spam-Status: No, score=-2.701 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_LOW=-0.7, SPF_PASS=-0.001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=joelhalpern.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 xwgsNvTFmxO2 for ; Tue, 11 Dec 2018 00:30:09 -0800 (PST) Received: from maila2.tigertech.net (maila2.tigertech.net [208.80.4.152]) (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 4A03E12777C for ; Tue, 11 Dec 2018 00:30:09 -0800 (PST) Received: from localhost (localhost [127.0.0.1]) by maila2.tigertech.net (Postfix) with ESMTP id 43DY6914qKz1K9cp; Tue, 11 Dec 2018 00:30:09 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=joelhalpern.com; s=2.tigertech; t=1544517009; bh=8Y9t1iefeCJYW2GXghfpmOLu7D5xk7WGQUda1uR83/E=; h=Subject:To:References:From:Date:In-Reply-To:From; b=dcoZVo8am4euf3CGm74ZuxAMB7Bf+kH4LA0ZQoCSQ6Na/Eb/SwXys2abw9gbm8/Ox MsG78OO6g3MYw4GoZRwtlZh865CPwKowQdpVjnP0IfyFOx1qUmbGbYNqInSBfj4E35 nHxdejITDg+5DXITWHXVnOFS3SqPGFHPgTpL/PMg= X-Virus-Scanned: Debian amavisd-new at maila2.tigertech.net Received: from Joels-MacBook-Pro.local (unknown [81.131.49.51]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by maila2.tigertech.net (Postfix) with ESMTPSA id 43DY6704CgzKmTN; Tue, 11 Dec 2018 00:30:06 -0800 (PST) To: ao.ting@zte.com.cn, sfc@ietf.org References: <201812111424468101520@zte.com.cn> From: "Joel M. Halpern" Message-ID: <4fd618f3-690a-cb05-4c5e-813cb61cbaa0@joelhalpern.com> Date: Tue, 11 Dec 2018 08:30:04 +0000 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 MIME-Version: 1.0 In-Reply-To: <201812111424468101520@zte.com.cn> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 8bit Archived-At: Subject: Re: [sfc] Question on the Information of SFs in load balance X-BeenThere: sfc@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Network Service Chaining List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 11 Dec 2018 08:30:11 -0000 There are multiple ways that this load balancing can be done. One way is to make the multiple SF instances visible to the SFF, and have the SFF perform the laod balancing. That is allowed. Another way of doing it is to have a single (or redundant pair of) load balancer visible to the SFF, and have the load balancer handle the multiple SF instances, including localizing the knowledg eof changes in the set and how to deal with those changes, keeping the SFF out of it. Both are allowed. In both cases, the delivery address known to the SFF will be whatever transport is used between the SFF and the succeeding element. There is no requirement that alternative next elements use the same transport. Of course, the carried packet is whatever it is, which is separate from what transport is used to carry the packet with the NSH header to the load balancer or SFF. Yours, Joel On 12/11/18 6:24 AM, ao.ting@zte.com.cn wrote: > > Hi all, > > > When we consider to collect the information of SFs which are attached to > one SFF for load balancing,  we know that these SFs have same same > Service Function Type and Service Index,  but do they have to have the > same locator? Is it possible that one of these SFs has a IPv4 address, > while the aother one has a IPv6 address? > > > Best Regards. > > Ting Ao > > > > > _______________________________________________ > sfc mailing list > sfc@ietf.org > https://www.ietf.org/mailman/listinfo/sfc > From nobody Tue Dec 11 02:14:25 2018 Return-Path: X-Original-To: sfc@ietfa.amsl.com Delivered-To: sfc@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id DE18F130DCF for ; Tue, 11 Dec 2018 02:14:22 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -3.36 X-Spam-Level: X-Spam-Status: No, score=-3.36 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIMWL_WL_MED=-1.459, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_PASS=-0.001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=interdigital.onmicrosoft.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 x51jDBMkev5N for ; Tue, 11 Dec 2018 02:14:20 -0800 (PST) Received: from NAM03-CO1-obe.outbound.protection.outlook.com (mail-eopbgr790094.outbound.protection.outlook.com [40.107.79.94]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 421E5130DC9 for ; Tue, 11 Dec 2018 02:14:20 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=interdigital.onmicrosoft.com; s=selector1-interdigital-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=AOjJUFOkJqI3V/1ww7qD1RgiV/+SQ+RzM9IumHI0uuE=; b=n8CbYhXRu4IExAjUu5o2HNzijtjt6DE3+f0y7SWVjc0H1wJCdUO7qnVLlbmcRd20EgjgpCDCEVX03wxL/Lj68oTPy0uMW4GuSCaFhMOGfnOh77xdge++JY16bSlv3yDqfkVJ61cIhfodCsTq1ygtQcMVNMmePBdf/DI0/bNldHQ= Received: from DM6PR10MB2777.namprd10.prod.outlook.com (20.177.216.82) by DM6PR10MB2763.namprd10.prod.outlook.com (20.176.89.152) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.1404.17; Tue, 11 Dec 2018 10:14:18 +0000 Received: from DM6PR10MB2777.namprd10.prod.outlook.com ([fe80::6918:e666:3f0e:fe2b]) by DM6PR10MB2777.namprd10.prod.outlook.com ([fe80::6918:e666:3f0e:fe2b%3]) with mapi id 15.20.1404.026; Tue, 11 Dec 2018 10:14:18 +0000 From: "Trossen, Dirk" To: "Joel M. Halpern" , "ao.ting@zte.com.cn" , "sfc@ietf.org" Thread-Topic: [sfc] Question on the Information of SFs in load balance Thread-Index: AQHUkRqOv50K7XYRUUmz9Byi3oL2kKV5NTgAgAAcg4A= Date: Tue, 11 Dec 2018 10:14:18 +0000 Message-ID: References: <201812111424468101520@zte.com.cn> <4fd618f3-690a-cb05-4c5e-813cb61cbaa0@joelhalpern.com> In-Reply-To: <4fd618f3-690a-cb05-4c5e-813cb61cbaa0@joelhalpern.com> Accept-Language: en-GB, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: spf=none (sender IP is ) smtp.mailfrom=Dirk.Trossen@InterDigital.com; x-originating-ip: [141.0.151.202] x-ms-publictraffictype: Email x-microsoft-exchange-diagnostics: 1; DM6PR10MB2763; 6:5+CnFUJKa+ZMigA3RlvnyT2n3BOq2pwFVgAmZ2KtZ8/Qe7OtloxZOza/nqqY5ycL3lzM5gtDuue+o51M2sPNmlOdHe+6xkqMBtN0xrPp9UFp7VIEH27t/H6vajogaI7kXd6ABEf4Dd2PevYmcDwqOxSIB9uO6mjEJxAGBw1DMCI/keA5TdjPQ2jySOFIkJ+Enp0fAArbBM0AODPAwZ4xcZ+6w6YstgSD8xdA3eL8RCHIkx55WpPwh9wirRpZN4zBbzukXpH+RDtkQwfFUIInwqBMFETUKKncGy3kjWBsqWFehLG+Hwk1e9ZQ5lyM2k2apVrVUzd78/uQAGc1Nu9KzA0UV/94XQPxS9wG58Ul3xDWwBJBKKZzO6UaPj/2l+Z15XnK7H4u69wf3I2zkxvSU3jrFRcGJhWZ7oArBRgkbZjOnF9JW01QVgM00fChCaZppZh4p9hu1RmVplH2efXWRw==; 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Halpern" , "ao.ting@zte.com.cn" , "sfc@ietf.org" Thread-Topic: [sfc] Question on the Information of SFs in load balance Thread-Index: AQHUkRqNkuP5UVGbvEWOuWgfhqEDP6V5NTgAgAAdIACAAMATIA== Date: Tue, 11 Dec 2018 21:53:03 +0000 Message-ID: References: <201812111424468101520@zte.com.cn> <4fd618f3-690a-cb05-4c5e-813cb61cbaa0@joelhalpern.com> In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: spf=none (sender IP is ) smtp.mailfrom=Debashish.Purkayastha@InterDigital.com; x-originating-ip: [38.140.198.106] x-ms-publictraffictype: Email x-microsoft-exchange-diagnostics: 1; BN6PR1001MB2193; 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Halpern" , "sfc@ietf.org" Date: Fri, 14 Dec 2018 18:48:27 +0100 In-Reply-To: <289f1c6e-3d2f-9a9d-53df-e9e04bafec65@joelhalpern.com> References: <289f1c6e-3d2f-9a9d-53df-e9e04bafec65@joelhalpern.com> Organization: Universidad Carlos III de Madrid Content-Type: text/plain; charset="UTF-8" User-Agent: Evolution 3.30.2-1 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Archived-At: Subject: Re: [sfc] Regarding Service Function Chaining: Subscriber and Policy Identification X-BeenThere: sfc@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Network Service Chaining List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 14 Dec 2018 17:48:57 -0000 Hi, Apologies for my belated response. I reviewed an earlier version and my comments have been address in the current version. I think this is interesting work I'd like the WG to look at. Thanks, Carlos On Mon, 2018-11-12 at 11:43 -0500, Joel M. Halpern wrote: > The author's presented this revised draft at the meeting. It > encapsualtes important points from their previous draft in a way that > we > hope is more focused and useful to the working group. > > Before issuing a call for working group adoption, I am taking the > unusual step of asking for specific concerns. > Please take a look at the draft, and let the list know if you see > issues > that you think need addressed. If you can, be clear as to whether > they > are issues you would like to see addressed before Working Group > adoption. > > The draft can be found at: > https://tools.ietf.org/html/draft-sfc-serviceid-header-01 > > Thank you, > Joel > > _______________________________________________ > sfc mailing list > sfc@ietf.org > https://www.ietf.org/mailman/listinfo/sfc From nobody Fri Dec 14 22:48:10 2018 Return-Path: X-Original-To: sfc@ietfa.amsl.com Delivered-To: sfc@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id EEAF312008A for ; Fri, 14 Dec 2018 22:48:07 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -3.36 X-Spam-Level: X-Spam-Status: No, score=-3.36 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIMWL_WL_MED=-1.459, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_PASS=-0.001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=interdigital.onmicrosoft.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 P54YZgBzqLAj for ; Fri, 14 Dec 2018 22:48:05 -0800 (PST) Received: from NAM04-SN1-obe.outbound.protection.outlook.com (mail-eopbgr700118.outbound.protection.outlook.com [40.107.70.118]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 56433128CF3 for ; Fri, 14 Dec 2018 22:48:04 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=interdigital.onmicrosoft.com; s=selector1-interdigital-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=+661RGnDfaxdQG31AMspjE+KOkeqPHa4rO678L28gyY=; b=eyyQDV9cc4T/ARxjq4QvvCz+ImqvfvgDVf5jiqBp5wx/DG55+Xn68C+Xcz9F/VdTBAhPM+mBTItLA0r6qgnXkWutH/RYz1vUHjAtwmuecCvROZhzfwcmQZ+Xpisq9VaG1HF89UeCC23edHkIfsK1Ni5E8v3+8t7lt5dqS7Aqn5A= Received: from DM5PR10MB1737.namprd10.prod.outlook.com (10.172.35.143) by DM5PR10MB1849.namprd10.prod.outlook.com (10.175.87.144) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.1425.20; Sat, 15 Dec 2018 06:48:02 +0000 Received: from DM5PR10MB1737.namprd10.prod.outlook.com ([fe80::d82b:6041:c698:8c20]) by DM5PR10MB1737.namprd10.prod.outlook.com ([fe80::d82b:6041:c698:8c20%8]) with mapi id 15.20.1425.021; Sat, 15 Dec 2018 06:48:02 +0000 From: "Rahman, Akbar" To: "cjbc@it.uc3m.es" , "Joel M. Halpern" , "sfc@ietf.org" Thread-Topic: [sfc] Regarding Service Function Chaining: Subscriber and Policy Identification Thread-Index: AQHUeqdCoB0sRxuc0Ue8kGdsj5Cd46V+tSCAgADZiVA= Date: Sat, 15 Dec 2018 06:48:02 +0000 Message-ID: References: <289f1c6e-3d2f-9a9d-53df-e9e04bafec65@joelhalpern.com> <87311052eccf947fbee4b8bd8d0f372badb457cf.camel@it.uc3m.es> In-Reply-To: <87311052eccf947fbee4b8bd8d0f372badb457cf.camel@it.uc3m.es> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [70.30.7.212] x-ms-publictraffictype: Email x-microsoft-exchange-diagnostics: 1; DM5PR10MB1849; 6:Y6xD2Now6hujJYCztQ8cKAwlH4Kg/1zfwV9q7E6nip6ekHHTHnBuSp9IS/vj7Q49dxfxnZYxzUoQK2gIp8zMDHjKRqgQ5K+gXROKlgRcZdcrqVdQeYergp+JV359RZBwn0qGZHn0W6ycL1RHd0rb66UzFzXppDpuhHUtYaf9Roiog0sL16RSw35w+AcNGfNKZjfh1W22TuGxqA7OV73NklgJ//yzZ7DmQAG+xUZyYXj+/JsFRyK2jmXPtaVrh7/bOOpaLIS/674R7p/ewpIHpW/PYKSKNtTtd8B97PUPEYwTC+DBhPJlY4PSemqhxjOVRTep1hDfec4raFGcp5AISlLwhgjyVLEwVjA/jRehOxVK1Eq4FyZ5Egol9wphVLI09D5gHo1h16p8oxX2vO0cEq3Hu8S8MTlkT3u65xX2WXTxqvqT/OnGotdZuNmlpw9RdsIIpET8owK7sea3RxS7Lw==; 5:hd18xwvjyvKvPOJtgs7R4TIGiMVrpZQPU5cB7YBbJamWU706yc+n6viR9cWjWKO/3Cm7vJu1gA8w51GAK1c+jcDwLJAnQlDP9hVibZDoqehbRcp8t2ot3edY4mJLVIPBDOnRGqn2lY6U3LA2tVEfTToD0sU4tciyCrNAhcMfn+c=; 7:XaMvwzW6uzkrcoHDFqvLoYclQiQHoBBVehGnUw5LerL6z3bYmXBFE6Xe1U8JySLwm9zt1Bs9F+UL+KZG47WNZ2eJ/ibP2HJumttvjo/phN0P6nJRYOQexDhBIpVna9vM5y4eRhHN7oaT1hGNAYOa1w== x-ms-exchange-antispam-srfa-diagnostics: SOS; x-ms-office365-filtering-correlation-id: c5ddcf00-7ba8-4bb7-8c53-08d66259423d x-microsoft-antispam: BCL:0; PCL:0; RULEID:(2390118)(7020095)(4652040)(8989299)(5600074)(711020)(4534185)(4627221)(201703031133081)(201702281549075)(8990200)(2017052603328)(7153060)(7193020); SRVR:DM5PR10MB1849; x-ms-traffictypediagnostic: DM5PR10MB1849: x-microsoft-antispam-prvs: x-ms-exchange-senderadcheck: 1 x-exchange-antispam-report-cfa-test: BCL:0; PCL:0; RULEID:(8211001083)(3230021)(999002)(6040522)(2401047)(5005006)(8121501046)(10201501046)(3231475)(944501520)(52105112)(93006095)(93001095)(3002001)(148016)(149066)(150057)(6041310)(20161123560045)(20161123564045)(20161123558120)(20161123562045)(201703131423095)(201702281528075)(20161123555045)(201703061421075)(201703061406153)(201708071742011)(7699051)(76991095); SRVR:DM5PR10MB1849; BCL:0; PCL:0; RULEID:; SRVR:DM5PR10MB1849; x-forefront-prvs: 088751B4D4 x-forefront-antispam-report: SFV:NSPM; SFS:(10019020)(136003)(376002)(346002)(366004)(396003)(39850400004)(13464003)(189003)(199004)(6436002)(4001150100001)(97736004)(14444005)(66066001)(966005)(74316002)(105586002)(72206003)(2501003)(106356001)(33656002)(7736002)(6246003)(71200400001)(256004)(81166006)(81156014)(8676002)(68736007)(478600001)(8936002)(9686003)(6306002)(26005)(102836004)(316002)(186003)(305945005)(6346003)(229853002)(71190400001)(99286004)(6506007)(76176011)(53546011)(476003)(2906002)(7696005)(6116002)(55016002)(86362001)(3846002)(5660300001)(11346002)(446003)(14454004)(110136005)(486006)(25786009)(53936002)(66574012)(85282002); DIR:OUT; SFP:1102; SCL:1; SRVR:DM5PR10MB1849; H:DM5PR10MB1737.namprd10.prod.outlook.com; FPR:; SPF:None; LANG:en; PTR:InfoNoRecords; MX:1; A:1; received-spf: None (protection.outlook.com: InterDigital.com does not designate permitted sender hosts) authentication-results: spf=none (sender IP is ) smtp.mailfrom=Akbar.Rahman@InterDigital.com; x-microsoft-antispam-message-info: Qup9bERX446WgZQgUncDs4Ov29vmKS13m4RZCHa5ty8SSCuuWl5iH66pJtd1C4Lvu12/kXe+7cIUfT3OV82hVbeUc/1MXJeaH5lu+7LM2GKUeN3LDm0Vd4PYoMufgl86990stYEPUHyYBHQCKbmGgTimW1yXUgRZpCbvf64C7xybs08u2tASbvHdz2Gha84kWRC0uJZfQ6JcIVSxJKm2+BpLaUvqfhD5eSG8QCuyTUKGba63el9JZ7cVOkyvnR1b/0vTg/9w/nGjCJOqGbSC+i0gFNQaQuH39FQJYRcXDtexHkQI3dxWJQbZsgGYHvHs spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: interdigital.com X-MS-Exchange-CrossTenant-Network-Message-Id: c5ddcf00-7ba8-4bb7-8c53-08d66259423d X-MS-Exchange-CrossTenant-originalarrivaltime: 15 Dec 2018 06:48:02.1038 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: e351b779-f6d5-4e50-8568-80e922d180ae X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM5PR10MB1849 Archived-At: Subject: Re: [sfc] Regarding Service Function Chaining: Subscriber and Policy Identification X-BeenThere: sfc@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Network Service Chaining List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 15 Dec 2018 06:48:08 -0000 +1 I think this is an important subject for the WG to be looking at. -----Original Message----- From: sfc [mailto:sfc-bounces@ietf.org] On Behalf Of Carlos Jes=FAs Bernard= os Cano Sent: Friday, December 14, 2018 12:48 PM To: Joel M. Halpern ; sfc@ietf.org Subject: Re: [sfc] Regarding Service Function Chaining: Subscriber and Poli= cy Identification Hi, Apologies for my belated response. I reviewed an earlier version and my com= ments have been address in the current version. I think this is interesting= work I'd like the WG to look at. Thanks, Carlos On Mon, 2018-11-12 at 11:43 -0500, Joel M. Halpern wrote: > The author's presented this revised draft at the meeting. It=20 > encapsualtes important points from their previous draft in a way that=20 > we hope is more focused and useful to the working group. >=20 > Before issuing a call for working group adoption, I am taking the=20 > unusual step of asking for specific concerns. > Please take a look at the draft, and let the list know if you see=20 > issues that you think need addressed. If you can, be clear as to=20 > whether they are issues you would like to see addressed before Working=20 > Group adoption. >=20 > The draft can be found at: > https://tools.ietf.org/html/draft-sfc-serviceid-header-01 >=20 > Thank you, > Joel >=20 > _______________________________________________ > sfc mailing list > sfc@ietf.org > https://www.ietf.org/mailman/listinfo/sfc _______________________________________________ sfc mailing list sfc@ietf.org https://www.ietf.org/mailman/listinfo/sfc From nobody Sat Dec 15 07:14:11 2018 Return-Path: X-Original-To: sfc@ietfa.amsl.com Delivered-To: sfc@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id CD212124C04 for ; Sat, 15 Dec 2018 07:14:09 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.701 X-Spam-Level: X-Spam-Status: No, score=-2.701 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_LOW=-0.7, SPF_PASS=-0.001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=joelhalpern.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 6IvmrTpYIU3g for ; Sat, 15 Dec 2018 07:14:08 -0800 (PST) Received: from mailb2.tigertech.net (mailb2.tigertech.net [208.80.4.154]) (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 21151124408 for ; Sat, 15 Dec 2018 07:14:08 -0800 (PST) Received: from localhost (localhost [127.0.0.1]) by mailb2.tigertech.net (Postfix) with ESMTP id 43H9tR59S4z1JJHS; Sat, 15 Dec 2018 07:14:07 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=joelhalpern.com; s=2.tigertech; t=1544886847; bh=k8p6RFcCcmgJ3eCMrUa0SqfXoxZ9JtKTE43RsRVF3VI=; h=Subject:To:References:From:Date:In-Reply-To:From; b=EUNluJf+IglYknuypx29KR9prNa/KNUJiTHcyiYWiJxM69AW19V4MHOmgAIygYOr3 UZB6NhJUmpOjaT55QHWJ9PFzHefV/efuDSmLLvtCl7OxVU9EfBbs30ENmpZ6GUqZBa mxk6fSPFoEjcHhGoyMA00HFwvMDJ/h3xrzG/keI0= X-Virus-Scanned: Debian amavisd-new at b2.tigertech.net Received: from Joels-MacBook-Pro.local (209-255-163-147.ip.mcleodusa.net [209.255.163.147]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mailb2.tigertech.net (Postfix) with ESMTPSA id 43H9tQ72gpz1J9jh; Sat, 15 Dec 2018 07:14:06 -0800 (PST) To: cjbc@it.uc3m.es, "sfc@ietf.org" References: <289f1c6e-3d2f-9a9d-53df-e9e04bafec65@joelhalpern.com> <87311052eccf947fbee4b8bd8d0f372badb457cf.camel@it.uc3m.es> From: "Joel M. Halpern" Message-ID: <61c148b5-d31d-8cdc-4eee-3889c441e8ec@joelhalpern.com> Date: Sat, 15 Dec 2018 10:14:05 -0500 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 MIME-Version: 1.0 In-Reply-To: <87311052eccf947fbee4b8bd8d0f372badb457cf.camel@it.uc3m.es> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 8bit Archived-At: Subject: Re: [sfc] Regarding Service Function Chaining: Subscriber and Policy Identification X-BeenThere: sfc@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Network Service Chaining List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 15 Dec 2018 15:14:10 -0000 My thanks to the folks who have spoken up. There was apparently some confusion about the earlier message. What we were looking for then was specific comments that we needed to deal with before issuing an adoption call. We will be issuing an adoption call. (I hope to get it out later today.) We will need everyone to speak up in response to that. We will allow 3 weeks due to the holidays. This note is so that the adoption call does not have to include an explanation of why we are asking you all over again. Thank you, Joel On 12/14/18 12:48 PM, Carlos Jesús Bernardos Cano wrote: > Hi, > > Apologies for my belated response. I reviewed an earlier version and my > comments have been address in the current version. I think this is > interesting work I'd like the WG to look at. > > Thanks, > > Carlos > > On Mon, 2018-11-12 at 11:43 -0500, Joel M. Halpern wrote: >> The author's presented this revised draft at the meeting. It >> encapsualtes important points from their previous draft in a way that >> we >> hope is more focused and useful to the working group. >> >> Before issuing a call for working group adoption, I am taking the >> unusual step of asking for specific concerns. >> Please take a look at the draft, and let the list know if you see >> issues >> that you think need addressed. If you can, be clear as to whether >> they >> are issues you would like to see addressed before Working Group >> adoption. >> >> The draft can be found at: >> https://tools.ietf.org/html/draft-sfc-serviceid-header-01 >> >> Thank you, >> Joel >> >> _______________________________________________ >> sfc mailing list >> sfc@ietf.org >> https://www.ietf.org/mailman/listinfo/sfc > > _______________________________________________ > sfc mailing list > sfc@ietf.org > https://www.ietf.org/mailman/listinfo/sfc > From nobody Sat Dec 15 12:19:35 2018 Return-Path: X-Original-To: sfc@ietfa.amsl.com Delivered-To: sfc@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 299AF130E46 for ; Sat, 15 Dec 2018 12:19:34 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -15.959 X-Spam-Level: X-Spam-Status: No, score=-15.959 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIMWL_WL_MED=-1.459, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_HI=-5, 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 ledEKZXg6V0H for ; Sat, 15 Dec 2018 12:19:31 -0800 (PST) Received: from rcdn-iport-3.cisco.com (rcdn-iport-3.cisco.com [173.37.86.74]) (using TLSv1.2 with cipher DHE-RSA-SEED-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 2395F130E44 for ; Sat, 15 Dec 2018 12:19:29 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=@cisco.com; l=10573; q=dns/txt; s=iport; t=1544905170; x=1546114770; h=from:to:subject:date:message-id:mime-version; bh=zvA5Uxya7hZ9NXQjYgypsx+ap/x2cZ24poI+7bslECc=; b=l6bzfOV5uQ8GrpYzx0hxEnfzmAUlueOK/Fzp9Ts2fFqW4OxQy+QlJbyV FVUSiGEmAO3WKHvonNs1qBJH6Wy5RXMIExK1vaVmQj9sgK4nNW6iU/aqt XV1SMVnsUAYdkEdxGFJaU4BeQ788MkETVwRTByPwSs5XpyqaAiOmICsDe 4=; X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: =?us-ascii?q?A0AdAAAzYRVc/5tdJa1iGwEBAQEDAQE?= =?us-ascii?q?BBwMBAQGBUwQBAQELAYENdmaBAjGYA5QKhVsUgWYLAQEjh1AiNgcNAQMBAQI?= =?us-ascii?q?BAQJtHAELhXBeATVLJgEEG4MbgRxkD6YkhC0BAwIChWYFinyBQheBQD+BEYY?= =?us-ascii?q?wAgOBGYEEhSACjzWRZAkChwuDQIcFIJFSiTyEdosLAhEUgScmDiOBVnAVO4J?= =?us-ascii?q?tgiYXiF6FP0GNKIEfAQE?= X-IronPort-AV: E=Sophos;i="5.56,358,1539648000"; d="scan'208,217";a="485584598" Received: from rcdn-core-4.cisco.com ([173.37.93.155]) by rcdn-iport-3.cisco.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 15 Dec 2018 20:19:25 +0000 Received: from XCH-ALN-006.cisco.com (xch-aln-006.cisco.com [173.36.7.16]) by rcdn-core-4.cisco.com (8.15.2/8.15.2) with ESMTPS id wBFKJPX4028913 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=FAIL) for ; Sat, 15 Dec 2018 20:19:25 GMT Received: from xch-rcd-008.cisco.com (173.37.102.18) by XCH-ALN-006.cisco.com (173.36.7.16) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Sat, 15 Dec 2018 14:19:24 -0600 Received: from xch-rcd-008.cisco.com ([173.37.102.18]) by XCH-RCD-008.cisco.com ([173.37.102.18]) with mapi id 15.00.1395.000; Sat, 15 Dec 2018 14:19:24 -0600 From: "Frank Brockners (fbrockne)" To: "sfc@ietf.org" Thread-Topic: proof-of-transit: continue with both approaches, or choose one? Thread-Index: AdSUr4tJY6f8O8P3RGmbsA+imZnrVw== Date: Sat, 15 Dec 2018 20:19:24 +0000 Message-ID: <210af706ed8d4b73aa8c77a24777d622@XCH-RCD-008.cisco.com> Accept-Language: de-DE, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.55.117.11] Content-Type: multipart/alternative; boundary="_000_210af706ed8d4b73aa8c77a24777d622XCHRCD008ciscocom_" MIME-Version: 1.0 X-Outbound-SMTP-Client: 173.36.7.16, xch-aln-006.cisco.com X-Outbound-Node: rcdn-core-4.cisco.com Archived-At: Subject: [sfc] proof-of-transit: continue with both approaches, or choose one? X-BeenThere: sfc@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Network Service Chaining List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 15 Dec 2018 20:19:34 -0000 --_000_210af706ed8d4b73aa8c77a24777d622XCHRCD008ciscocom_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable During the SFC WG at IETF 103 in Bangkok we raised the question, whether we= could simplify the draft and choose a single algorithm for proof-of-transi= t only (see also https://datatracker.ietf.org/meeting/103/materials/minutes= -103-sfc-01). Given that we could not come to a conclusion, we decided to t= ake the discussion to the list. Background: draft-ietf-sfc-proof-of-transit-01 describes two different approaches: "nes= ted encryption" and "Shamir's secret sharing scheme (SSSS)". We documented = both approaches in the initial version of the draft, because the two approa= ches had different qualities: While SSSS was computationally cheaper (each = node only needs to perform two additions, a multiplication and a modulo-div= ision), nested-encryption allowed to verify that packets traversed a set of= nodes in a particular order ("ordered POT - OPOT") - something that the SS= SS-approach in the initial version of the draft did not offer. With the cha= nges discussed in IETF 102 and now documented in draft-ietf-sfc-proof-of-tr= ansit-01, both approaches offer order preservation. In summary, we can now observe the following qualities of the two approache= s: * SSSS: Allows verification that a given set of nodes has been traverse= d in a specific order (POT and OPOT). SSSS without order preservation requi= res 2 additions, 1 multiplication, 1 division per node participating in POT= . Order preservation on top of that requires an additional XOR (or similar)= . * Nested-encryption: Allows verification that a given set of nodes has = been traversed in a specific order (POT and OPOT). The computational effort= of nested encryption depends on the crypto algorithm chosen and typically = higher than SSSS, i.e. it requires/benefits from hardware with specific cap= abilities (e.g. AES-NI). Question: Given that both approaches both solve the problem of POT and ordered POT, s= hould we consider simplifying the draft and describe only a single approach= ? If so, which approach should we choose? I.e. when taking the computational effort into account and the fact that op= tions increase the burden for any implementor, we could decide to only desc= ribe the SSSS approach in the draft. Thoughts? Opinions? Many thanks, Frank --_000_210af706ed8d4b73aa8c77a24777d622XCHRCD008ciscocom_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

 

During the SFC WG at IETF 103 i= n Bangkok we raised the question, whether we could simplify the draft and c= hoose a single algorithm for proof-of-transit only (see also https://datatracker.ietf.org/meeting/103= /materials/minutes-103-sfc-01). Given that = we could not come to a conclusion, we decided to take the discussion to the list.

 

Background: <= /p>

draft-ietf-sfc-proof-of-transit= -01 describes two different approaches: “nested encryption” and= “Shamir’s secret sharing scheme (SSSS)”. We documented b= oth approaches in the initial version of the draft, because the two approaches had different qualities: While SSSS was computationally cheaper= (each node only needs to perform two additions, a multiplication and a mod= ulo-division), nested-encryption allowed to verify that packets traversed a= set of nodes in a particular order (“ordered POT - OPOT”) – something that the SSSS-approac= h in the initial version of the draft did not offer. With the changes discu= ssed in IETF 102 and now documented in draft-ietf-sfc-proof-of-transit-01, = both approaches offer order preservation.

In summary, we can now observe = the following qualities of the two approaches:

  • SSSS: Allows verification that a given set of no= des has been traversed in a specific order (POT and OPOT). SSSS without ord= er preservation requires 2 additions, 1 multiplication, 1 division per node participating in POT. Order preserva= tion on top of that requires an additional XOR (or similar).
  • Nested-encryption: Allows verification t= hat a given set of nodes has been traversed in a specific order (POT and OP= OT). The computational effort of nested encryption depends on the crypto algorithm chosen and typically higher than SSSS, i.e= . it requires/benefits from hardware with specific capabilities (e.g. AES-N= I).

 

Question:

Given that both approaches both= solve the problem of POT and ordered POT, should we consider simplifying t= he draft and describe only a single approach? If so, which approach should = we choose?

I.e. when taking the computatio= nal effort into account and the fact that options increase the burden for a= ny implementor, we could decide to only describe the SSSS approach in the d= raft.

 

Thoughts? Opinions?<= /span>

 

Many thanks, Frank

 

--_000_210af706ed8d4b73aa8c77a24777d622XCHRCD008ciscocom_-- From nobody Sun Dec 16 12:52:47 2018 Return-Path: X-Original-To: sfc@ietfa.amsl.com Delivered-To: sfc@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id D32A9130DC1 for ; Sun, 16 Dec 2018 12:52:44 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.7 X-Spam-Level: X-Spam-Status: No, score=-2.7 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_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 (1024-bit key) header.d=joelhalpern.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 m8s2lDbnPrCR for ; Sun, 16 Dec 2018 12:52:43 -0800 (PST) Received: from maila2.tigertech.net (maila2.tigertech.net [208.80.4.152]) (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 E5958126C01 for ; Sun, 16 Dec 2018 12:52:42 -0800 (PST) Received: from localhost (localhost [127.0.0.1]) by maila2.tigertech.net (Postfix) with ESMTP id 43HxLf4hLwz1tpw6; Sun, 16 Dec 2018 12:52:42 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=joelhalpern.com; s=2.tigertech; t=1544993562; bh=Fsv0e0mWsBZYQQK00IVxZgSZzAldR2YVQlafQD3neJw=; h=Subject:To:References:From:Date:In-Reply-To:From; b=V1EPhqN1CtbrP1nl8MzMZv8/31cMd1W2LwR+31dktDLtH2P+r6/D2z9+j/ebVcZl/ lUG0Z2Ow5z4mW6ZvcpBnyyQ1z0GKpnoec4eUPO6mk5PTZ/WWZzmLw9OoQ4bGOsx5a3 NCz6/bIjxoBsy7jcM/WBD5vomOa/CZIGbogGQmA8= X-Virus-Scanned: Debian amavisd-new at maila2.tigertech.net Received: from Joels-MacBook-Pro.local (209-255-163-147.ip.mcleodusa.net [209.255.163.147]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by maila2.tigertech.net (Postfix) with ESMTPSA id 43HxLf0hSYzLW4P; Sun, 16 Dec 2018 12:52:41 -0800 (PST) To: "Frank Brockners (fbrockne)" , "sfc@ietf.org" References: <210af706ed8d4b73aa8c77a24777d622@XCH-RCD-008.cisco.com> From: "Joel M. Halpern" Message-ID: Date: Sun, 16 Dec 2018 15:52:41 -0500 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 MIME-Version: 1.0 In-Reply-To: <210af706ed8d4b73aa8c77a24777d622@XCH-RCD-008.cisco.com> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Language: en-US Content-Transfer-Encoding: 8bit Archived-At: Subject: Re: [sfc] proof-of-transit: continue with both approaches, or choose one? X-BeenThere: sfc@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Network Service Chaining List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 16 Dec 2018 20:52:45 -0000 Personally, the argument for just using SSSS, given that it now can provide ordered verification, seems quite persuasive to me. Yours, Joel On 12/15/18 3:19 PM, Frank Brockners (fbrockne) wrote: > During the SFC WG at IETF 103 in Bangkok we raised the question, whether > we could simplify the draft and choose a single algorithm for > proof-of-transit only (see also > https://datatracker.ietf.org/meeting/103/materials/minutes-103-sfc-01). > Given that we could not come to a conclusion, we decided to take the > discussion to the list. > > Background: > > draft-ietf-sfc-proof-of-transit-01 describes two different approaches: > “nested encryption” and “Shamir’s secret sharing scheme (SSSS)”. We > documented both approaches in the initial version of the draft, because > the two approaches had different qualities: While SSSS was > computationally cheaper (each node only needs to perform two additions, > a multiplication and a modulo-division), nested-encryption allowed to > verify that packets traversed a set of nodes in a particular order > (“ordered POT - OPOT”) – something that the SSSS-approach in the initial > version of the draft did not offer. With the changes discussed in IETF > 102 and now documented in draft-ietf-sfc-proof-of-transit-01, both > approaches offer order preservation. > > In summary, we can now observe the following qualities of the two > approaches: > > * SSSS: Allows verification that a given set of nodes has been > traversed in a specific order (POT and OPOT). SSSS without order > preservation requires 2 additions, 1 multiplication, 1 division per > node participating in POT. Order preservation on top of that > requires an additional XOR (or similar). > * Nested-encryption: Allows verification that a given set of nodes has > been traversed in a specific order (POT and OPOT). The computational > effort of nested encryption depends on the crypto algorithm chosen > and typically higher than SSSS, i.e.. it requires/benefits from > hardware with specific capabilities (e.g. AES-NI). > > Question: > > Given that both approaches both solve the problem of POT and ordered > POT, should we consider simplifying the draft and describe only a single > approach? If so, which approach should we choose? > > I.e. when taking the computational effort into account and the fact that > options increase the burden for any implementor, we could decide to only > describe the SSSS approach in the draft. > > Thoughts? Opinions? > > Many thanks, Frank > > > > _______________________________________________ > sfc mailing list > sfc@ietf.org > https://www.ietf.org/mailman/listinfo/sfc > From nobody Sun Dec 16 18:46:24 2018 Return-Path: X-Original-To: sfc@ietf.org Delivered-To: sfc@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 803F6130E5B; Sun, 16 Dec 2018 18:46:22 -0800 (PST) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: IETF Secretariat To: , , X-Test-IDTracker: no X-IETF-IDTracker: 6.89.1 Auto-Submitted: auto-generated Precedence: bulk Message-ID: <154501478251.18949.7118318166788945223.idtracker@ietfa.amsl.com> Date: Sun, 16 Dec 2018 18:46:22 -0800 Archived-At: Subject: [sfc] The SFC WG has placed draft-sfc-serviceid-header in state "Call For Adoption By WG Issued" X-BeenThere: sfc@ietf.org X-Mailman-Version: 2.1.29 List-Id: Network Service Chaining List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 17 Dec 2018 02:46:23 -0000 The SFC WG has placed draft-sfc-serviceid-header in state Call For Adoption By WG Issued (entered by Joel Halpern) The document is available at https://datatracker.ietf.org/doc/draft-sfc-serviceid-header/ Comment: This starts a 3 week working group adoption call for "Service Function Chaining: Subscriber and Policy Identification Variable-Length Network Service Header (NSH) Context Headers" https://datatracker.ietf.org/doc/draft-sfc-serviceid-header/ Please speak up. Silence will NOT be taken as support. Earlier comments about the document, while appreciated, will not be taken for support. The last call will end a CoB on Monday, January 7, 2019 Thank you, Joel and Jim From nobody Mon Dec 17 00:13:13 2018 Return-Path: X-Original-To: sfc@ietfa.amsl.com Delivered-To: sfc@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id A4CAC128BCC; Mon, 17 Dec 2018 00:13:11 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.6 X-Spam-Level: X-Spam-Status: No, score=-2.6 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_DNSWL_LOW=-0.7, SPF_PASS=-0.001, UNPARSEABLE_RELAY=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 AqWEsqo6BVcC; Mon, 17 Dec 2018 00:13:10 -0800 (PST) Received: from orange.com (mta135.mail.business.static.orange.com [80.12.70.35]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id CBB5E1294D7; Mon, 17 Dec 2018 00:13:06 -0800 (PST) Received: from opfednr03.francetelecom.fr (unknown [xx.xx.xx.67]) by opfednr25.francetelecom.fr (ESMTP service) with ESMTP id 43JDRh6lSZzCrvM; Mon, 17 Dec 2018 09:13:04 +0100 (CET) Received: from Exchangemail-eme2.itn.ftgroup (unknown [xx.xx.31.43]) by opfednr03.francetelecom.fr (ESMTP service) with ESMTP id 43JDRh5mVKzDq7W; Mon, 17 Dec 2018 09:13:04 +0100 (CET) Received: from OPEXCLILMA3.corporate.adroot.infra.ftgroup ([fe80::60a9:abc3:86e6:2541]) by OPEXCLILM5F.corporate.adroot.infra.ftgroup ([fe80::e172:f13e:8be6:71cc%18]) with mapi id 14.03.0415.000; Mon, 17 Dec 2018 09:12:09 +0100 From: To: IETF Secretariat , "sfc-chairs@ietf.org" , "draft-sfc-serviceid-header@ietf.org" , "sfc@ietf.org" Thread-Topic: The SFC WG has placed draft-sfc-serviceid-header in state "Call For Adoption By WG Issued" Thread-Index: AQHUlbK01HKxafW+a0W0C2f4Ufyo1aWClLUg Date: Mon, 17 Dec 2018 08:12:08 +0000 Message-ID: <787AE7BB302AE849A7480A190F8B93302E05BEAF@OPEXCLILMA3.corporate.adroot.infra.ftgroup> References: <154501478251.18949.7118318166788945223.idtracker@ietfa.amsl.com> In-Reply-To: <154501478251.18949.7118318166788945223.idtracker@ietfa.amsl.com> Accept-Language: fr-FR, en-US Content-Language: fr-FR X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.168.234.4] Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 MIME-Version: 1.0 Archived-At: Subject: Re: [sfc] The SFC WG has placed draft-sfc-serviceid-header in state "Call For Adoption By WG Issued" X-BeenThere: sfc@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Network Service Chaining List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 17 Dec 2018 08:13:12 -0000 SGkgSm9lbCwgYWxsLCANCg0KSSBzdXBwb3J0IHRoaXMgZG9jdW1lbnQsIG9idmlvdXNseS4gDQoN CkZXSVcsIEkgZG9uJ3QgaGF2ZSBhbnkgSVBSIHJlbGF0ZWQgdG8gdGhpcyBkb2N1bWVudC4gDQoN CkNoZWVycywNCk1lZA0KDQo+IC0tLS0tTWVzc2FnZSBkJ29yaWdpbmUtLS0tLQ0KPiBEZcKgOiBJ RVRGIFNlY3JldGFyaWF0IFttYWlsdG86aWV0Zi1zZWNyZXRhcmlhdC1yZXBseUBpZXRmLm9yZ10N Cj4gRW52b3nDqcKgOiBsdW5kaSAxNyBkw6ljZW1icmUgMjAxOCAwMzo0Ng0KPiDDgMKgOiBzZmMt Y2hhaXJzQGlldGYub3JnOyBkcmFmdC1zZmMtc2VydmljZWlkLWhlYWRlckBpZXRmLm9yZzsgc2Zj QGlldGYub3JnDQo+IE9iamV0wqA6IFRoZSBTRkMgV0cgaGFzIHBsYWNlZCBkcmFmdC1zZmMtc2Vy dmljZWlkLWhlYWRlciBpbiBzdGF0ZSAiQ2FsbCBGb3INCj4gQWRvcHRpb24gQnkgV0cgSXNzdWVk Ig0KPiANCj4gDQo+IFRoZSBTRkMgV0cgaGFzIHBsYWNlZCBkcmFmdC1zZmMtc2VydmljZWlkLWhl YWRlciBpbiBzdGF0ZQ0KPiBDYWxsIEZvciBBZG9wdGlvbiBCeSBXRyBJc3N1ZWQgKGVudGVyZWQg YnkgSm9lbCBIYWxwZXJuKQ0KPiANCj4gVGhlIGRvY3VtZW50IGlzIGF2YWlsYWJsZSBhdA0KPiBo dHRwczovL2RhdGF0cmFja2VyLmlldGYub3JnL2RvYy9kcmFmdC1zZmMtc2VydmljZWlkLWhlYWRl ci8NCj4gDQo+IENvbW1lbnQ6DQo+IFRoaXMgc3RhcnRzIGEgMyB3ZWVrIHdvcmtpbmcgZ3JvdXAg YWRvcHRpb24gY2FsbCBmb3IgIlNlcnZpY2UgRnVuY3Rpb24NCj4gQ2hhaW5pbmc6IFN1YnNjcmli ZXIgYW5kIFBvbGljeSBJZGVudGlmaWNhdGlvbiBWYXJpYWJsZS1MZW5ndGggTmV0d29yaw0KPiBT ZXJ2aWNlIEhlYWRlciAoTlNIKSBDb250ZXh0IEhlYWRlcnMiDQo+IGh0dHBzOi8vZGF0YXRyYWNr ZXIuaWV0Zi5vcmcvZG9jL2RyYWZ0LXNmYy1zZXJ2aWNlaWQtaGVhZGVyLyBQbGVhc2Ugc3BlYWsg dXAuDQo+ICBTaWxlbmNlIHdpbGwgTk9UIGJlIHRha2VuIGFzIHN1cHBvcnQuICBFYXJsaWVyIGNv bW1lbnRzIGFib3V0IHRoZSBkb2N1bWVudCwNCj4gd2hpbGUgYXBwcmVjaWF0ZWQsIHdpbGwgbm90 IGJlIHRha2VuIGZvciBzdXBwb3J0Lg0KPiANCj4gVGhlIGxhc3QgY2FsbCB3aWxsIGVuZCBhIENv QiBvbiBNb25kYXksIEphbnVhcnkgNywgMjAxOQ0KPiANCj4gVGhhbmsgeW91LA0KPiBKb2VsIGFu ZCBKaW0NCg== From nobody Mon Dec 17 03:12:35 2018 Return-Path: X-Original-To: sfc@ietfa.amsl.com Delivered-To: sfc@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id CCC2A1294D7; 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DIR:OUT; SFP:1101; SCL:1; SRVR:FRAPR01MB0801; H:FRAPR01MB0801.DEUPRD01.PROD.OUTLOOK.DE; FPR:; SPF:None; LANG:en; PTR:InfoNoRecords; MX:1; A:1; received-spf: None (protection.outlook.com: telekom.de does not designate permitted sender hosts) x-microsoft-antispam-message-info: 9O/I4SWbeTvzvgSmYJVxRjC3LMJ4wIx08T9f5VUgyH+XakCKip/G/Yc5QJ9tC1lNPt6in6Gn5Ln+MvHrAcWJeuzk5YD5XBxKtXpwZf0Zzkqhi2+dmQwtDWIfmIY+UELCqpI2RT7/Uq08+WWJOPbMIrxHxfBgFQQDFcksQ26IbdJrYonaDVxqelmTqRKS2EZXgbr1dNhwSX/q5EfbudfnHrmT3s/UOPYFH7gXEzm3WiLQtRpATlKDERwAbiXQ+Natpjg0mCw9KVQu6CQVqLxAPPcT7W5P8adfh1AQY4zHHb9JOCyFFJVzmv0D8fePvmZF spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-MS-Exchange-CrossTenant-Network-Message-Id: cdf6c320-31c1-442a-c444-08d664102afd X-MS-Exchange-CrossTenant-originalarrivaltime: 17 Dec 2018 11:09:52.2250 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: bde4dffc-4b60-4cf6-8b04-a5eeb25f5c4f X-MS-Exchange-Transport-CrossTenantHeadersStamped: FRAPR01MB0801 X-OriginatorOrg: telekom.de Archived-At: Subject: Re: [sfc] The SFC WG has placed draft-sfc-serviceid-header in state "Call For Adoption By WG Issued" X-BeenThere: sfc@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Network Service Chaining List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 17 Dec 2018 11:12:34 -0000 KzEgDQotIGJvdGggb24gYWRvcHRpb24gb2YgZHJhZnQgYW5kIG5vdCBrbm93aW5nIHJlbGV2YW50 IElQUiBjb25jZXJucw0KDQpUaGFua3MhDQpLaW5kIHJlZ2FyZHMNCkRpcmsNCg0KLS0tLS1Pcmln aW5hbCBNZXNzYWdlLS0tLS0NCkZyb206IG1vaGFtZWQuYm91Y2FkYWlyQG9yYW5nZS5jb20gPG1v aGFtZWQuYm91Y2FkYWlyQG9yYW5nZS5jb20+IA0KU2VudDogTW9udGFnLCAxNy4gRGV6ZW1iZXIg MjAxOCAwOToxMg0KVG86IElFVEYgU2VjcmV0YXJpYXQgPGlldGYtc2VjcmV0YXJpYXQtcmVwbHlA aWV0Zi5vcmc+OyBzZmMtY2hhaXJzQGlldGYub3JnOyBkcmFmdC1zZmMtc2VydmljZWlkLWhlYWRl ckBpZXRmLm9yZzsgc2ZjQGlldGYub3JnDQpTdWJqZWN0OiBSRTogVGhlIFNGQyBXRyBoYXMgcGxh Y2VkIGRyYWZ0LXNmYy1zZXJ2aWNlaWQtaGVhZGVyIGluIHN0YXRlICJDYWxsIEZvciBBZG9wdGlv biBCeSBXRyBJc3N1ZWQiDQoNCkhpIEpvZWwsIGFsbCwgDQoNCkkgc3VwcG9ydCB0aGlzIGRvY3Vt ZW50LCBvYnZpb3VzbHkuIA0KDQpGV0lXLCBJIGRvbid0IGhhdmUgYW55IElQUiByZWxhdGVkIHRv IHRoaXMgZG9jdW1lbnQuIA0KDQpDaGVlcnMsDQpNZWQNCg0KPiAtLS0tLU1lc3NhZ2UgZCdvcmln aW5lLS0tLS0NCj4gRGXCoDogSUVURiBTZWNyZXRhcmlhdCBbbWFpbHRvOmlldGYtc2VjcmV0YXJp YXQtcmVwbHlAaWV0Zi5vcmddDQo+IEVudm95w6nCoDogbHVuZGkgMTcgZMOpY2VtYnJlIDIwMTgg MDM6NDYNCj4gw4DCoDogc2ZjLWNoYWlyc0BpZXRmLm9yZzsgZHJhZnQtc2ZjLXNlcnZpY2VpZC1o ZWFkZXJAaWV0Zi5vcmc7IA0KPiBzZmNAaWV0Zi5vcmcgT2JqZXTCoDogVGhlIFNGQyBXRyBoYXMg cGxhY2VkIGRyYWZ0LXNmYy1zZXJ2aWNlaWQtaGVhZGVyIA0KPiBpbiBzdGF0ZSAiQ2FsbCBGb3Ig QWRvcHRpb24gQnkgV0cgSXNzdWVkIg0KPiANCj4gDQo+IFRoZSBTRkMgV0cgaGFzIHBsYWNlZCBk cmFmdC1zZmMtc2VydmljZWlkLWhlYWRlciBpbiBzdGF0ZSBDYWxsIEZvciANCj4gQWRvcHRpb24g QnkgV0cgSXNzdWVkIChlbnRlcmVkIGJ5IEpvZWwgSGFscGVybikNCj4gDQo+IFRoZSBkb2N1bWVu dCBpcyBhdmFpbGFibGUgYXQNCj4gaHR0cHM6Ly9kYXRhdHJhY2tlci5pZXRmLm9yZy9kb2MvZHJh ZnQtc2ZjLXNlcnZpY2VpZC1oZWFkZXIvDQo+IA0KPiBDb21tZW50Og0KPiBUaGlzIHN0YXJ0cyBh IDMgd2VlayB3b3JraW5nIGdyb3VwIGFkb3B0aW9uIGNhbGwgZm9yICJTZXJ2aWNlIEZ1bmN0aW9u DQo+IENoYWluaW5nOiBTdWJzY3JpYmVyIGFuZCBQb2xpY3kgSWRlbnRpZmljYXRpb24gVmFyaWFi bGUtTGVuZ3RoIE5ldHdvcmsgDQo+IFNlcnZpY2UgSGVhZGVyIChOU0gpIENvbnRleHQgSGVhZGVy cyINCj4gaHR0cHM6Ly9kYXRhdHJhY2tlci5pZXRmLm9yZy9kb2MvZHJhZnQtc2ZjLXNlcnZpY2Vp ZC1oZWFkZXIvIFBsZWFzZSBzcGVhayB1cC4NCj4gIFNpbGVuY2Ugd2lsbCBOT1QgYmUgdGFrZW4g YXMgc3VwcG9ydC4gIEVhcmxpZXIgY29tbWVudHMgYWJvdXQgdGhlIA0KPiBkb2N1bWVudCwgd2hp bGUgYXBwcmVjaWF0ZWQsIHdpbGwgbm90IGJlIHRha2VuIGZvciBzdXBwb3J0Lg0KPiANCj4gVGhl IGxhc3QgY2FsbCB3aWxsIGVuZCBhIENvQiBvbiBNb25kYXksIEphbnVhcnkgNywgMjAxOQ0KPiAN Cj4gVGhhbmsgeW91LA0KPiBKb2VsIGFuZCBKaW0NCg== From nobody Mon Dec 17 04:57:14 2018 Return-Path: X-Original-To: sfc@ietfa.amsl.com Delivered-To: sfc@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 2205D12D4EB; 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Wed, 19 Dec 2018 13:33:18 -0800 (PST) MIME-Version: 1.0 References: <154501478251.18949.7118318166788945223.idtracker@ietfa.amsl.com> <787AE7BB302AE849A7480A190F8B93302E05BEAF@OPEXCLILMA3.corporate.adroot.infra.ftgroup> In-Reply-To: From: Danny Alex Lachos Perez Date: Wed, 19 Dec 2018 19:33:06 -0200 Message-ID: To: "Rahman, Akbar" Cc: "Hugo, Dirk" , "ietf-secretariat-reply@ietf.org" , "sfc-chairs@ietf.org" , "draft-sfc-serviceid-header@ietf.org" , "sfc@ietf.org" , "mohamed.boucadair@orange.com" Content-Type: multipart/alternative; boundary="00000000000032c4db057d66c343" Archived-At: Subject: Re: [sfc] The SFC WG has placed draft-sfc-serviceid-header in state "Call For Adoption By WG Issued" X-BeenThere: sfc@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Network Service Chaining List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 19 Dec 2018 21:33:23 -0000 --00000000000032c4db057d66c343 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable + I support the adoption as a reviewer Best regards, Danny Lachos On Mon, Dec 17, 2018 at 10:57 AM Rahman, Akbar < Akbar.Rahman@interdigital.com> wrote: > +1 for adoption of the draft > > Best Regards, > > > Akbar > > -----Original Message----- > From: sfc [mailto:sfc-bounces@ietf.org] On Behalf Of Hugo, Dirk > Sent: Monday, December 17, 2018 6:10 AM > To: ietf-secretariat-reply@ietf.org; sfc-chairs@ietf.org; > draft-sfc-serviceid-header@ietf.org; sfc@ietf.org > Cc: mohamed.boucadair@orange.com > Subject: Re: [sfc] The SFC WG has placed draft-sfc-serviceid-header in > state "Call For Adoption By WG Issued" > > +1 > - both on adoption of draft and not knowing relevant IPR concerns > > Thanks! > Kind regards > Dirk > > -----Original Message----- > From: mohamed.boucadair@orange.com > Sent: Montag, 17. Dezember 2018 09:12 > To: IETF Secretariat ; > sfc-chairs@ietf.org; draft-sfc-serviceid-header@ietf.org; sfc@ietf.org > Subject: RE: The SFC WG has placed draft-sfc-serviceid-header in state > "Call For Adoption By WG Issued" > > Hi Joel, all, > > I support this document, obviously. > > FWIW, I don't have any IPR related to this document. > > Cheers, > Med > > > -----Message d'origine----- > > De : IETF Secretariat [mailto:ietf-secretariat-reply@ietf.org] > > Envoy=C3=A9 : lundi 17 d=C3=A9cembre 2018 03:46 > > =C3=80 : sfc-chairs@ietf.org; draft-sfc-serviceid-header@ietf.org; > > sfc@ietf.org Objet : The SFC WG has placed draft-sfc-serviceid-header > > in state "Call For Adoption By WG Issued" > > > > > > The SFC WG has placed draft-sfc-serviceid-header in state Call For > > Adoption By WG Issued (entered by Joel Halpern) > > > > The document is available at > > https://datatracker.ietf.org/doc/draft-sfc-serviceid-header/ > > > > Comment: > > This starts a 3 week working group adoption call for "Service Function > > Chaining: Subscriber and Policy Identification Variable-Length Network > > Service Header (NSH) Context Headers" > > https://datatracker.ietf.org/doc/draft-sfc-serviceid-header/ Please > speak up. > > Silence will NOT be taken as support. Earlier comments about the > > document, while appreciated, will not be taken for support. > > > > The last call will end a CoB on Monday, January 7, 2019 > > > > Thank you, > > Joel and Jim > _______________________________________________ > sfc mailing list > sfc@ietf.org > https://www.ietf.org/mailman/listinfo/sfc > _______________________________________________ > sfc mailing list > sfc@ietf.org > https://www.ietf.org/mailman/listinfo/sfc > --00000000000032c4db057d66c343 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
+ I support the adoption as a review= er

Best=C2=A0regards,

Danny Lachos

On Mon, Dec 17, 2018 at 10:57 AM Rahman, Akbar <Akbar.Rahman@interdigital.com> wrote:
+1 = for adoption of the draft

Best Regards,


Akbar

-----Original Message-----
From: sfc [mailto:sfc-bounces@ietf.org] On Behalf Of Hugo, Dirk
Sent: Monday, December 17, 2018 6:10 AM
To: ie= tf-secretariat-reply@ietf.org; sfc-chairs@ietf.org; draft-sfc-serviceid-header@ietf.org= ; sfc@ietf.org Cc: moham= ed.boucadair@orange.com
Subject: Re: [sfc] The SFC WG has placed draft-sfc-serviceid-header in stat= e "Call For Adoption By WG Issued"

+1
- both on adoption of draft and not knowing relevant IPR concerns

Thanks!
Kind regards
Dirk

-----Original Message-----
From: moh= amed.boucadair@orange.com <mohamed.boucadair@orange.com>
Sent: Montag, 17. Dezember 2018 09:12
To: IETF Secretariat <ietf-secretariat-reply@ietf.org>; sfc-chairs@ietf.org; draft-sfc= -serviceid-header@ietf.org; sfc@ietf.org
Subject: RE: The SFC WG has placed draft-sfc-serviceid-header in state &quo= t;Call For Adoption By WG Issued"

Hi Joel, all,

I support this document, obviously.

FWIW, I don't have any IPR related to this document.

Cheers,
Med

> -----Message d'origine-----
> De=C2=A0: IETF Secretariat [mailto:ietf-secretariat-reply@ietf.org]
> Envoy=C3=A9=C2=A0: lundi 17 d=C3=A9cembre 2018 03:46
> =C3=80=C2=A0: sfc-chairs@ietf.org; draft-sfc-serviceid-header@ietf.org;
> sfc@ietf.org Obj= et=C2=A0: The SFC WG has placed draft-sfc-serviceid-header
> in state "Call For Adoption By WG Issued"
>
>
> The SFC WG has placed draft-sfc-serviceid-header in state Call For > Adoption By WG Issued (entered by Joel Halpern)
>
> The document is available at
> https://datatracker.ietf.org/doc/dr= aft-sfc-serviceid-header/
>
> Comment:
> This starts a 3 week working group adoption call for "Service Fun= ction
> Chaining: Subscriber and Policy Identification Variable-Length Network=
> Service Header (NSH) Context Headers"
> https://datatracker.ietf.org/doc/dr= aft-sfc-serviceid-header/ Please speak up.
>=C2=A0 Silence will NOT be taken as support.=C2=A0 Earlier comments abo= ut the
> document, while appreciated, will not be taken for support.
>
> The last call will end a CoB on Monday, January 7, 2019
>
> Thank you,
> Joel and Jim
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--00000000000032c4db057d66c343-- From nobody Thu Dec 20 10:52:43 2018 Return-Path: X-Original-To: sfc@ietfa.amsl.com Delivered-To: sfc@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 2460E130E83 for ; Thu, 20 Dec 2018 10:52:41 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.599 X-Spam-Level: X-Spam-Status: No, score=-2.599 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_DNSWL_LOW=-0.7, 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 7J3zV0-7TxbU for ; Thu, 20 Dec 2018 10:52:39 -0800 (PST) Received: from mta5.iomartmail.com (mta5.iomartmail.com [62.128.193.155]) (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 D007D130E6C for ; Thu, 20 Dec 2018 10:52:38 -0800 (PST) Received: from vs3.iomartmail.com (vs3.iomartmail.com [10.12.10.124]) by mta5.iomartmail.com (8.14.4/8.14.4) with ESMTP id wBKIqXRh020857; Thu, 20 Dec 2018 18:52:33 GMT Received: from vs3.iomartmail.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 2686A2203C; Thu, 20 Dec 2018 18:52:33 +0000 (GMT) Received: from asmtp2.iomartmail.com (unknown [10.12.10.249]) by vs3.iomartmail.com (Postfix) with ESMTPS id F1C582203A; Thu, 20 Dec 2018 18:52:32 +0000 (GMT) Received: from LAPTOPK7AS653V (lfbn-lyo-1-439-80.w2-7.abo.wanadoo.fr [2.7.32.80]) (authenticated bits=0) by asmtp2.iomartmail.com (8.14.4/8.14.4) with ESMTP id wBKIqVfR003923 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Thu, 20 Dec 2018 18:52:32 GMT Reply-To: From: "Adrian Farrel" To: "'Joel M. Halpern'" , "'Frank Brockners \(fbrockne\)'" , References: <210af706ed8d4b73aa8c77a24777d622@XCH-RCD-008.cisco.com> In-Reply-To: Date: Thu, 20 Dec 2018 18:52:32 -0000 Organization: Old Dog Consulting Message-ID: <001601d49895$2a908390$7fb18ab0$@olddog.co.uk> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Mailer: Microsoft Outlook 16.0 Thread-Index: AQF6tqvjFuuQs+ZSwvf4CqMR5ikwjwKzJb7bpiYhL5A= Content-Language: en-gb X-Originating-IP: 2.7.32.80 X-Thinkmail-Auth: adrian@olddog.co.uk X-TM-AS-GCONF: 00 X-TM-AS-Product-Ver: IMSVA-9.0.0.1623-8.2.0.1013-24304.001 X-TM-AS-Result: No--13.927-10.0-31-10 X-imss-scan-details: No--13.927-10.0-31-10 X-TMASE-Version: IMSVA-9.0.0.1623-8.2.1013-24304.001 X-TMASE-Result: 10--13.926700-10.000000 X-TMASE-MatchedRID: xcONGPdDH5rxIbpQ8BhdbNxajlW+zwxCJPNIV6GF8mt6GeWCu+JlEHAW uORm0TIa0Up1b0cisb6x8nm8pl676MM8uuVxUoODYD9XTRdaMO34uJ1REX4MHQ1xyQQ/F/PYwua niM9QXy1MchP+34a+DkZhmLGbhCJv1QYZ4RBSUEMwQr/q2DojcUyQ5fRSh265wCVyZHYmmMLE49 76aDk6GjE1D4dfzAG39KhQTl9YfS9IFTKzsUteXUfhraIl1XgxwDMmA7wK/aaX1RWcrwojHPJsl +USu3BFVVsy/SZzIzek3tvCsafB9/3P0tuR+I4bE0Q83A2vD+vSL+EVfOJR04KwF4K/wIz9fsmA wcMms4K6aaXmynX546/F21vmSbAxp8pDLp9CdcKpuD25aEtgtwVyeo9hM9SHm5K/hJ/GErczucN Qgv3Qa+LzNWBegCW2XC3N7C7YzrdWRVlrjsKO8Cs3zPQeiEbe+gtHj7OwNO0kL2NLniq3Nfc3C+ c0JIpGYR5LHSXCL69bwUXeQ6PwT5tpy31QjBiJ X-TMASE-SNAP-Result: 1.821001.0001-0-1-12:0,22:0,33:0,34:0-0 Archived-At: Subject: Re: [sfc] proof-of-transit: continue with both approaches, or choose one? X-BeenThere: sfc@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Network Service Chaining List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 20 Dec 2018 18:52:41 -0000 I think I agree with Joel on this point. The nested encryption approach really did smell a bit :-) It was functional, but a rather sad solution. Since the 4S approach can now meet the requirement (that is quite important in security applications of SFC) to show ordered proof of transit, I should think the decision easy. Cheers, Adrian -----Original Message----- From: sfc On Behalf Of Joel M. Halpern Sent: 16 December 2018 20:53 To: Frank Brockners (fbrockne) ; sfc@ietf.org Subject: Re: [sfc] proof-of-transit: continue with both approaches, or choose one? Personally, the argument for just using SSSS, given that it now can provide ordered verification, seems quite persuasive to me. Yours, Joel On 12/15/18 3:19 PM, Frank Brockners (fbrockne) wrote: > During the SFC WG at IETF 103 in Bangkok we raised the question, whether > we could simplify the draft and choose a single algorithm for > proof-of-transit only (see also > https://datatracker.ietf.org/meeting/103/materials/minutes-103-sfc-01). > Given that we could not come to a conclusion, we decided to take the > discussion to the list. > > Background: > > draft-ietf-sfc-proof-of-transit-01 describes two different approaches: > "nested encryption" and "Shamir's secret sharing scheme (SSSS)".. We > documented both approaches in the initial version of the draft, because > the two approaches had different qualities: While SSSS was > computationally cheaper (each node only needs to perform two additions, > a multiplication and a modulo-division), nested-encryption allowed to > verify that packets traversed a set of nodes in a particular order > ("ordered POT - OPOT") - something that the SSSS-approach in the initial > version of the draft did not offer. With the changes discussed in IETF > 102 and now documented in draft-ietf-sfc-proof-of-transit-01, both > approaches offer order preservation. > > In summary, we can now observe the following qualities of the two > approaches: > > * SSSS: Allows verification that a given set of nodes has been > traversed in a specific order (POT and OPOT). SSSS without order > preservation requires 2 additions, 1 multiplication, 1 division per > node participating in POT. Order preservation on top of that > requires an additional XOR (or similar). > * Nested-encryption: Allows verification that a given set of nodes has > been traversed in a specific order (POT and OPOT). The computational > effort of nested encryption depends on the crypto algorithm chosen > and typically higher than SSSS, i.e.. it requires/benefits from > hardware with specific capabilities (e.g. AES-NI). > > Question: > > Given that both approaches both solve the problem of POT and ordered > POT, should we consider simplifying the draft and describe only a single > approach? If so, which approach should we choose? > > I.e. when taking the computational effort into account and the fact that > options increase the burden for any implementor, we could decide to only > describe the SSSS approach in the draft. > > Thoughts? Opinions? > > Many thanks, Frank > > > > _______________________________________________ > sfc mailing list > sfc@ietf.org > https://www.ietf.org/mailman/listinfo/sfc > _______________________________________________ sfc mailing list sfc@ietf.org https://www.ietf.org/mailman/listinfo/sfc From nobody Thu Dec 20 12:56:01 2018 Return-Path: X-Original-To: sfc@ietfa.amsl.com Delivered-To: sfc@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 4DA2113121F for ; Thu, 20 Dec 2018 12:56:00 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.065 X-Spam-Level: X-Spam-Status: No, score=-2.065 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.065, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, 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 (1024-bit key) header.d=telefonica.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 Sd0ZJ4aqhnUi for ; Thu, 20 Dec 2018 12:55:55 -0800 (PST) Received: from EUR01-DB5-obe.outbound.protection.outlook.com (mail-db5eur01on0718.outbound.protection.outlook.com [IPv6:2a01:111:f400:fe02::718]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 4793F131210 for ; Thu, 20 Dec 2018 12:55:53 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=telefonica.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=ZpCcsRZ73Q4JMpCKzlg7oF5NUSKGEVI2DvqJ57UvRLo=; b=0Xh125vTElRjPUcfHSIC0bLue6a2utsxuC4ozLg/ILUozD/tpGyOFFyrWvpSDb9UxWxSLDwv2YbMM61C8ZBCFvEnRi7tu6J144lxywhIRA0qxk/TNVtfZ1UL1CSXCvre5GJA9D2ZIMwOqzhqhO1P5q42TQaQDt+f8a89tPw8fHY= Received: from AM0PR0602MB3777.eurprd06.prod.outlook.com (52.133.36.138) by AM0PR0602MB3393.eurprd06.prod.outlook.com (52.133.48.147) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.1446.17; Thu, 20 Dec 2018 20:55:50 +0000 Received: from AM0PR0602MB3777.eurprd06.prod.outlook.com ([fe80::5c78:1fd6:5dae:d6f2]) by AM0PR0602MB3777.eurprd06.prod.outlook.com ([fe80::5c78:1fd6:5dae:d6f2%3]) with mapi id 15.20.1446.020; Thu, 20 Dec 2018 20:55:50 +0000 From: "Diego R. Lopez" To: "adrian@olddog.co.uk" , "'Joel M. Halpern'" , "'Frank Brockners (fbrockne)'" , "sfc@ietf.org" Thread-Topic: [sfc] proof-of-transit: continue with both approaches, or choose one? 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b=JsXo6S6etTv8nfyHM4u/5Iol9b9zPwOrvoGWiIrEx16pM+MXd7zhEb4q1TQlKm5oD5TfA+PeP4CO/du3ZFzVdlEt4k9Pztz1VWT1D255gHv+5cbHhw/qleNuqoq5cQYK9MMfvRBT5lnToK+qBkdzUOp+4U78jNc2T8Sv5mO77pY= Received: from AM0PR0602MB3777.eurprd06.prod.outlook.com (52.133.36.138) by AM0PR0602MB3393.eurprd06.prod.outlook.com (52.133.48.147) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.1446.17; Thu, 20 Dec 2018 20:56:59 +0000 Received: from AM0PR0602MB3777.eurprd06.prod.outlook.com ([fe80::5c78:1fd6:5dae:d6f2]) by AM0PR0602MB3777.eurprd06.prod.outlook.com ([fe80::5c78:1fd6:5dae:d6f2%3]) with mapi id 15.20.1446.020; Thu, 20 Dec 2018 20:56:59 +0000 From: "Diego R. Lopez" To: "adrian@olddog.co.uk" , "'Joel M. Halpern'" , "'Frank Brockners (fbrockne)'" , "sfc@ietf.org" Thread-Topic: [sfc] proof-of-transit: continue with both approaches, or choose one? 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[2.154.161.159]) by smtp.gmail.com with ESMTPSA id b13sm21762052wrn.28.2018.12.23.04.06.09 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Sun, 23 Dec 2018 04:06:10 -0800 (PST) Message-ID: From: Carlos =?ISO-8859-1?Q?Jes=FAs?= Bernardos Cano Reply-To: cjbc@it.uc3m.es To: IETF Secretariat , sfc-chairs@ietf.org, draft-sfc-serviceid-header@ietf.org, sfc@ietf.org Date: Sun, 23 Dec 2018 13:06:09 +0100 In-Reply-To: <154501478251.18949.7118318166788945223.idtracker@ietfa.amsl.com> References: <154501478251.18949.7118318166788945223.idtracker@ietfa.amsl.com> Organization: Universidad Carlos III de Madrid Content-Type: text/plain; charset="UTF-8" User-Agent: Evolution 3.30.3-1 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Archived-At: Subject: Re: [sfc] The SFC WG has placed draft-sfc-serviceid-header in state "Call For Adoption By WG Issued" X-BeenThere: sfc@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Network Service Chaining List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 23 Dec 2018 12:06:17 -0000 Hi, I support adopting this draft. Carlos On Sun, 2018-12-16 at 18:46 -0800, IETF Secretariat wrote: > The SFC WG has placed draft-sfc-serviceid-header in state > Call For Adoption By WG Issued (entered by Joel Halpern) > > The document is available at > https://datatracker.ietf.org/doc/draft-sfc-serviceid-header/ > > Comment: > This starts a 3 week working group adoption call for "Service > Function > Chaining: Subscriber and Policy Identification Variable-Length > Network > Service Header (NSH) Context Headers" > https://datatracker.ietf.org/doc/draft-sfc-serviceid-header/ Please > speak up. > Silence will NOT be taken as support. Earlier comments about the > document, > while appreciated, will not be taken for support. > > The last call will end a CoB on Monday, January 7, 2019 > > Thank you, > Joel and Jim > > _______________________________________________ > sfc mailing list > sfc@ietf.org > https://www.ietf.org/mailman/listinfo/sfc From nobody Thu Dec 27 23:21:32 2018 Return-Path: X-Original-To: sfc@ietfa.amsl.com Delivered-To: sfc@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 87E26128BCC; Thu, 27 Dec 2018 23:21:30 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -4.197 X-Spam-Level: X-Spam-Status: No, score=-4.197 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, MSGID_FROM_MTA_HEADER=0.001, RCVD_IN_DNSWL_MED=-2.3, SPF_PASS=-0.001, UNPARSEABLE_RELAY=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]) 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Date: Fri, 28 Dec 2018 14:55:25 +0800 (CST) X-Zmail-TransId: 2afa5c25c8dde4732320 X-Mailer: Zmail v1.0 In-Reply-To: References: 154501478251.18949.7118318166788945223.idtracker@ietfa.amsl.com, d635c9133b60e40afc641ca85eba0c6b30deaae0.camel@it.uc3m.es Mime-Version: 1.0 From: To: Cc: , , , Content-Type: multipart/mixed; boundary="=====_001_next=====" X-MAIL: mse02.zte.com.cn wBS7LLbS078487 X-MSS: AUDITRELEASE@mse02.zte.com.cn Archived-At: Subject: Re: [sfc] =?utf-8?q?The_SFC_WG_has_placed_draft-sfc-serviceid-header?= =?utf-8?q?_in_state=22Call_For_Adoption_By_WG_Issued=22?= X-BeenThere: sfc@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Network Service Chaining List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 28 Dec 2018 07:21:31 -0000 --=====_001_next===== Content-Type: multipart/related; boundary="=====_002_next=====" --=====_002_next===== Content-Type: multipart/alternative; boundary="=====_003_next=====" 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