From chuanhuang_li@mail.zjgsu.edu.cn Thu Sep 1 00:09:26 2011 Return-Path: X-Original-To: forces@ietfa.amsl.com Delivered-To: forces@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 4D52C21F8AC9 for ; Thu, 1 Sep 2011 00:09:26 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.261 X-Spam-Level: X-Spam-Status: No, score=-1.261 tagged_above=-999 required=5 tests=[AWL=1.338, BAYES_00=-2.599] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id cQmiaaMiflW0 for ; Thu, 1 Sep 2011 00:09:25 -0700 (PDT) Received: from mail.zjgsu.edu.cn (ucmail.zjgsu.edu.cn [124.160.64.1]) by ietfa.amsl.com (Postfix) with SMTP id 3643421F8B47 for ; Thu, 1 Sep 2011 00:09:24 -0700 (PDT) Received: from RobinLee (unknown [10.20.0.167]) by mailportal (Coremail) with SMTP id rBCI85D7Z3jRLl9OwM9qAA--.32583S2; Thu, 01 Sep 2011 15:05:53 +0800 (CST) Date: Thu, 1 Sep 2011 15:11:40 +0800 From: "Chuanhuang Li" To: "Wang,Weiming" , "Joel" References: , <201109010919027653873@mail.zjgsu.edu.cn>, <201109011105325780938@mail.zjgsu.edu.cn>, <4E5EF6E8.4050903@stevecrocker.com> Message-ID: <201109011511399686610@mail.zjgsu.edu.cn> Organization: Zhejiang Gongshang Univercity X-mailer: Foxmail 6, 15, 201, 23 [cn] Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-CM-TRANSID: rBCI85D7Z3jRLl9OwM9qAA--.32583S2 X-Coremail-Antispam: 1Uf129KBjDUn29KB7ZKAUJUUUUUYxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJ3UbIYCTnIWIevJa73UjIFyTuYvj4RJUUUUUUUU X-CM-SenderInfo: pfkxt0xkxd0wxbolqzhdloh6pmjv3hxhgxhubq/ Cc: "Joel M. Halpern" , "forces@ietf.org" Subject: [forces] comments on EtherClassifier output port X-BeenThere: forces@ietf.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: ForCES WG mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 01 Sep 2011 07:09:26 -0000 Hi, All We need add an LFB port in EtherClassifier to output the packets which can't be classified. They can be processed in other LFB or redirected to CE. Joel agree with me on this suggest. His opinion, this LFB port can be named "noMatchingClassification". Joel, but I think, similar to other LFBs, it is best named "ExceptionOut". We can use ExceptionID to describe the packets' status, so CE can know how to process them. Yours, Chuanhuang From hadi@mojatatu.com Thu Sep 1 01:45:45 2011 Return-Path: X-Original-To: forces@ietfa.amsl.com Delivered-To: forces@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 16F3721F8B67 for ; Thu, 1 Sep 2011 01:45:45 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -102.033 X-Spam-Level: X-Spam-Status: No, score=-102.033 tagged_above=-999 required=5 tests=[AWL=-0.256, BAYES_00=-2.599, FM_FORGED_GMAIL=0.622, J_CHICKENPOX_47=0.6, J_CHICKENPOX_64=0.6, RCVD_IN_DNSWL_LOW=-1, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 5lYr6g+fm2mx for ; Thu, 1 Sep 2011 01:45:44 -0700 (PDT) Received: from mail-fx0-f44.google.com (mail-fx0-f44.google.com [209.85.161.44]) by ietfa.amsl.com (Postfix) with ESMTP id 5C06B21F8B64 for ; Thu, 1 Sep 2011 01:45:43 -0700 (PDT) Received: by fxe6 with SMTP id 6so516772fxe.31 for ; Thu, 01 Sep 2011 01:47:15 -0700 (PDT) Received: by 10.223.6.91 with SMTP id 27mr1338876fay.146.1314866835125; Thu, 01 Sep 2011 01:47:15 -0700 (PDT) MIME-Version: 1.0 Received: by 10.223.126.193 with HTTP; Thu, 1 Sep 2011 01:46:55 -0700 (PDT) In-Reply-To: References: <201108171533409845193@mail.zjgsu.edu.cn> <201108181039221719265@mail.zjgsu.edu.cn> From: Jamal Hadi Salim Date: Thu, 1 Sep 2011 04:46:55 -0400 Message-ID: To: "Wang,Weiming" Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Cc: forces , Chuanhuang Li , "Joel M. Halpern" Subject: Re: [forces] comments #13 X-BeenThere: forces@ietf.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: ForCES WG mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 01 Sep 2011 08:45:45 -0000 Weiming, ACK from me. cheers, jamal On Wed, Aug 31, 2011 at 8:26 PM, Wang,Weiming wrot= e: > Jamal, > > > > By refering your this comment, I again modified the 5.4.2.1 last paragrap= h as below: > > > > =A0All associated metadata produced (but not consumed) by previous proces= sed LFBs should be delivered to CE via the ForCES protocol redirect message= [RFC5810]. The CE can decide on how to process the redirected packet by re= ferencing the associated metadata. As an example, a packet could be redirec= ted by the FE to the CE because the EtherEncap LFB is not able to resolve L= 2 information. The metadata "ExceptionID", created by the EtherEncap LFB is= passed along with the packet and should be sufficient for the CE to do the= necessary processing and resolve the L2 entry required. > > > > By now, I suppose this comment can be closed. > > > > thanks, > > Weiming > > > > ----- Original Message ----- > From: "Jamal Hadi Salim" > Subject: Re: comments #13 > > > Some small corrections below: > > On Wed, Aug 17, 2011 at 10:39 PM, Chuanhuang Li > wrote: > >> 5.4.2.1. >> >> All associated metadata produced (but not consumed) by previous processe= d >> LFBs should be delivered to CE via the ForCES protocol redirect message = [RFC5810]. >> CE can decide how to process the packet according these metadata. > > Change last sentence to: > The CE can decide on how to process the redirected packet by referencing = the > associated metadata. > >> For example, the packet can't find L2 information in EtherEncap and need= to be >> redirected to CE to do address resolution. Through the value of "Execpti= onID" metadata, >> CE knows what he should do. Of course, CE will be difficult to make a de= cision, if there >> is no metadata indicating the status of the packet(such as ExecptionID).= In this case, >> CE should treat it as a new packet that havn't got any processing in FE. > > As an example, a packet could be redirected by the FE to the CE because t= he > EtherEncap LFB is not able to resolve L2 information. The metadata > "ExceptionID", > created by the EtherEncap LFB is passed along with the packet and should = be > sufficient for the CE to do the necessary processing and resolve the > L2 entry required. > > > cheers, > jamal From hadi@mojatatu.com Thu Sep 1 02:13:10 2011 Return-Path: X-Original-To: forces@ietfa.amsl.com Delivered-To: forces@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id BE1FC21F8A97 for ; Thu, 1 Sep 2011 02:13:10 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -102.327 X-Spam-Level: X-Spam-Status: No, score=-102.327 tagged_above=-999 required=5 tests=[AWL=0.050, BAYES_00=-2.599, FM_FORGED_GMAIL=0.622, J_CHICKENPOX_47=0.6, RCVD_IN_DNSWL_LOW=-1, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id l52n5EHF-N6B for ; Thu, 1 Sep 2011 02:13:10 -0700 (PDT) Received: from mail-fx0-f44.google.com (mail-fx0-f44.google.com [209.85.161.44]) by ietfa.amsl.com (Postfix) with ESMTP id EF06621F8785 for ; Thu, 1 Sep 2011 02:13:09 -0700 (PDT) Received: by fxe6 with SMTP id 6so537867fxe.31 for ; Thu, 01 Sep 2011 02:14:39 -0700 (PDT) Received: by 10.223.100.145 with SMTP id y17mr1407419fan.32.1314868479099; Thu, 01 Sep 2011 02:14:39 -0700 (PDT) MIME-Version: 1.0 Received: by 10.223.126.193 with HTTP; Thu, 1 Sep 2011 02:14:19 -0700 (PDT) In-Reply-To: References: From: Jamal Hadi Salim Date: Thu, 1 Sep 2011 05:14:19 -0400 Message-ID: To: "Wang,Weiming" Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Cc: forces@ietf.org, Chuanhuang Li , "Joel M. Halpern" Subject: Re: [forces] comments #14 X-BeenThere: forces@ietf.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: ForCES WG mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 01 Sep 2011 09:13:10 -0000 Weiming, On Thu, Sep 1, 2011 at 12:22 AM, Wang,Weiming wrot= e: ent more: > > ---------- > 5,5.1. BasicMetadataDispatch > > > A basic medatata dispatch LFB is defined to abstract the process in which= a packet is > dispatched to some path based on its associated =A0metadata value. > > > > 5.5.1.1. Data Handling > > > > The BasicMetadataDispatch LFB provides the function to dispatch input pac= kets to a group output according to a metadatum and a dispatch table. > > The BasicMetadataDispatch has only one singleton input known as "PktsIn". I think the above two sentences would be better to move to 5.5.1 above so = that we only talk about processing in this section. > Every input packet should be associated with a metadatum that will be use= d by the LFB to do the dispatch. > If a packet is not associated with such a metadatum, the packet will be d= ropped inside the LFB. > > > This LFB contains a dispatch table named MetadataDispatchTable that can b= e set by CE so as to decide > which metadatum is used for dispatch. "...is configured by the CE to define which metadata is to be used for dispatching." >The table contains entires of a Metadata ID, a Metadata value and an Outp= utIndex. > >The LFB uses all existing metadata associated with every input packet with= their > metadata IDs and metadata values as the content keys to look up the table= to find out the relevant OutputIndex. > If a packet failed lookup of the table, the packet will just be dropped i= nside the LFB. > Ok, now i realize my confusion was technical not editorial. It seems sensible that we should avoid content keys if we can get away with indexed tables. I am s= orry if i am rehashing past discussion: Why was this not a table inside a table indirection? First you use the Metadata ID to index into table 1 to find the table for that Metadata. Drop if non-existent. Next you lookup the second table using the metadata value to find the OutputIndex. Drop if non-existent. > > > The BasicMetadataDispatch LFB has one output defined as a group output kn= own as "PktsOut". A packet having found an OutputIndex will be output to th= e group port instance with the corresponding index. > > > > As an example, if the CE decides to dispatch packets according to physica= l port ID (PHYPortID), the CE may set the metadata ID of PHYPortID and the = PHYPortID actual value (the metadata value), and assigned OutputIndex to th= e =A0dispatch table. When a packet arrives, metadata associated with the pa= cket are used to look up the dispatch table to find out an output port inst= ance for the packet. > > > > Currently the BasicMetadataDispatch LFB only allows the metadata value of= the dispatch table entry be integer. makes more sense to say "32-bit value". >A metadatum with other types of value is not supported in this version. A = more complex metadata dispatch LFB may be defined in future version of the = library. In that LFB, multiple tuples of metadata with more value types sup= ported may be used to dispatch packets. > > > > 5.5.1.2. Components > > > > This LFB has only one component named MetadataDispatchTable which is defi= ned as an array. Each row of the array is a struct containing a =A0 Metadat= a ID, a Metadata value and the OutputIndex to select the output port from t= he group. > > I have no issues with the rest of the text. cheers, jamal From wmwang2001@hotmail.com Thu Sep 1 06:31:39 2011 Return-Path: X-Original-To: forces@ietfa.amsl.com Delivered-To: forces@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id A325521F99E0 for ; Thu, 1 Sep 2011 06:31:39 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: 2.18 X-Spam-Level: ** X-Spam-Status: No, score=2.18 tagged_above=-999 required=5 tests=[AWL=0.426, BAYES_50=0.001, MIME_BASE64_TEXT=1.753] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id qf66FAzmAc3D for ; Thu, 1 Sep 2011 06:31:39 -0700 (PDT) Received: from blu0-omc2-s21.blu0.hotmail.com (blu0-omc2-s21.blu0.hotmail.com [65.55.111.96]) by ietfa.amsl.com (Postfix) with ESMTP id 2EAF821F99DC for ; Thu, 1 Sep 2011 06:31:39 -0700 (PDT) Received: from BLU0-SMTP227 ([65.55.111.73]) by blu0-omc2-s21.blu0.hotmail.com with Microsoft SMTPSVC(6.0.3790.4675); Thu, 1 Sep 2011 06:33:11 -0700 X-Originating-IP: [122.233.195.56] X-Originating-Email: [wmwang2001@hotmail.com] Message-ID: Received: from WmwangHome ([122.233.195.56]) by BLU0-SMTP227.phx.gbl over TLS secured channel with Microsoft SMTPSVC(6.0.3790.4675); Thu, 1 Sep 2011 06:33:10 -0700 From: "Wang,Weiming" To: "Jamal Hadi Salim" References: Date: Thu, 1 Sep 2011 21:33:12 +0800 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: base64 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5931 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.6109 X-OriginalArrivalTime: 01 Sep 2011 13:33:10.0566 (UTC) FILETIME=[B1078C60:01CC68AB] Cc: forces@ietf.org, Chuanhuang Li , "Joel M. Halpern" Subject: Re: [forces] comments #14 X-BeenThere: forces@ietf.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: ForCES WG mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 01 Sep 2011 13:31:39 -0000 Rml4ZWQgYWxsIGV4Y2VwdCBvbiB0aGUgZm9sbG93aW5nIHBvaW50LiANCkNodWFuaHVhbmcscGxz IGRvdWJsZSBjaGVjayB0aGUgcG9zc2liaWxpdHkgdG8gdXNlIGEgdGFibGUgaW4gdGFibGUgaGVy ZS4gDQoNCnRoYW5rcywNCldlaW1pbmcNCi0tLS0tIE9yaWdpbmFsIE1lc3NhZ2UgLS0tLS0gDQpG cm9tOiAiSmFtYWwgSGFkaSBTYWxpbSIgPGhhZGlAbW9qYXRhdHUuY29tPg0KPlRoZSB0YWJsZSBj b250YWlucyBlbnRpcmVzIG9mIGEgTWV0YWRhdGEgSUQsIGEgTWV0YWRhdGEgdmFsdWUgIGFuZCBh biBPdXRwdXRJbmRleC4NCj4NCj5UaGUgTEZCIHVzZXMgYWxsIGV4aXN0aW5nIG1ldGFkYXRhIGFz c29jaWF0ZWQgd2l0aCBldmVyeSBpbnB1dCBwYWNrZXQgd2l0aCB0aGVpcg0KPiBtZXRhZGF0YSBJ RHMgYW5kIG1ldGFkYXRhIHZhbHVlcyBhcyB0aGUgY29udGVudCBrZXlzIHRvIGxvb2sgdXAgdGhl IHRhYmxlIHRvIGZpbmQgb3V0IHRoZSByZWxldmFudCBPdXRwdXRJbmRleC4NCj4gSWYgYSBwYWNr ZXQgZmFpbGVkIGxvb2t1cCBvZiB0aGUgdGFibGUsIHRoZSBwYWNrZXQgd2lsbCBqdXN0IGJlIGRy b3BwZWQgaW5zaWRlIHRoZSBMRkIuDQo+DQpPaywgbm93IGkgcmVhbGl6ZSBteSBjb25mdXNpb24g d2FzIHRlY2huaWNhbCBub3QgZWRpdG9yaWFsLiBJdCBzZWVtcw0Kc2Vuc2libGUgdGhhdA0Kd2Ug c2hvdWxkIGF2b2lkIGNvbnRlbnQga2V5cyBpZiB3ZSBjYW4gZ2V0IGF3YXkgd2l0aCBpbmRleGVk IHRhYmxlcy4gSSBhbSBzb3JyeQ0KaWYgaSBhbSByZWhhc2hpbmcgcGFzdCBkaXNjdXNzaW9uOiBX aHkgd2FzIHRoaXMgbm90IGEgdGFibGUgaW5zaWRlIGENCnRhYmxlIGluZGlyZWN0aW9uPw0KRmly c3QgeW91IHVzZSB0aGUgTWV0YWRhdGEgSUQgdG8gaW5kZXggaW50byB0YWJsZSAxIHRvIGZpbmQg dGhlIHRhYmxlIGZvcg0KdGhhdCBNZXRhZGF0YS4gRHJvcCBpZiBub24tZXhpc3RlbnQuIE5leHQg eW91IGxvb2t1cCB0aGUgc2Vjb25kIHRhYmxlDQp1c2luZyB0aGUgbWV0YWRhdGEgdmFsdWUgdG8g ZmluZCB0aGUgT3V0cHV0SW5kZXguIERyb3AgaWYgbm9uLWV4aXN0ZW50Lg0K From wmwang2001@hotmail.com Thu Sep 1 06:34:21 2011 Return-Path: X-Original-To: forces@ietfa.amsl.com Delivered-To: forces@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id CC80E21F9B57 for ; Thu, 1 Sep 2011 06:34:21 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: 2.133 X-Spam-Level: ** X-Spam-Status: No, score=2.133 tagged_above=-999 required=5 tests=[AWL=0.379, BAYES_50=0.001, MIME_BASE64_TEXT=1.753] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id anR02OR7bx-f for ; Thu, 1 Sep 2011 06:34:21 -0700 (PDT) Received: from blu0-omc2-s6.blu0.hotmail.com (blu0-omc2-s6.blu0.hotmail.com [65.55.111.81]) by ietfa.amsl.com (Postfix) with ESMTP id 4FFDC21F9B55 for ; Thu, 1 Sep 2011 06:34:21 -0700 (PDT) Received: from BLU0-SMTP348 ([65.55.111.73]) by blu0-omc2-s6.blu0.hotmail.com with Microsoft SMTPSVC(6.0.3790.4675); Thu, 1 Sep 2011 06:35:54 -0700 X-Originating-IP: [122.233.195.56] X-Originating-Email: [wmwang2001@hotmail.com] Message-ID: Received: from WmwangHome ([122.233.195.56]) by BLU0-SMTP348.phx.gbl over TLS secured channel with Microsoft SMTPSVC(6.0.3790.4675); Thu, 1 Sep 2011 06:35:52 -0700 From: "Wang,Weiming" To: "Jamal Hadi Salim" , References: Date: Thu, 1 Sep 2011 21:35:55 +0800 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: base64 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5931 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.6109 X-OriginalArrivalTime: 01 Sep 2011 13:35:52.0843 (UTC) FILETIME=[11C10DB0:01CC68AC] Cc: "Joel M. Halpern" , Chuanhuang Li Subject: Re: [forces] comments #15 X-BeenThere: forces@ietf.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: ForCES WG mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 01 Sep 2011 13:34:21 -0000 Q2h1YW5odWFuZywgcGxzIHByb3ZpZGUgcmVzcG9uc2UuDQoNCldlaW1pbmcNCg0KLS0tLS0gT3Jp Z2luYWwgTWVzc2FnZSAtLS0tLSANCkZyb206ICJKYW1hbCBIYWRpIFNhbGltIiA8aGFkaUBtb2ph dGF0dS5jb20+DQoNCj5JIGJyb3VnaHQgdGhpcyBjb25jZXJuIGluIHZlcnNpb24gNCBvZiB0aGUg ZHJhZnQgYW5kIGkgZ290IGFncmVlbWVudA0KPiB0byBmaXggaXQuIEkgYW0gd29ycmllZCB0aGVy ZSBhcmUgb3RoZXIgdGhpbmdzIG9mIHRoZSBzYW1lIG5hdHVyZS4NCj4gUGxlYXNlIG1ha2Ugc3Vy ZSB5b3UgdXBkYXRlIGV2ZXJ5dGhpbmcgd2UgYWdyZWUgb24gc28gd2UgZG9udCBoYXZlDQo+IHRo ZSBzYW1lIGRpc2N1c3Npb25zIGFnYWluLg0KPiBWbGFuSW5wdXRUYWJsZUVudHJ5VHlwZSBkZWZp bmVzIFZMQU5JRCBhcyAzMmJpdC4NCj4gV2UgbmVlZCB0byB0eXBlZGVmIHRoZSBWTEFOSUQgYXBw cm9wcmlhdGVseS4NCj4gDQo+IGNoZWVycywNCj4gamFtYWwNCj4= From wmwang2001@hotmail.com Thu Sep 1 06:38:14 2011 Return-Path: X-Original-To: forces@ietfa.amsl.com Delivered-To: forces@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id B08D621F905E for ; Thu, 1 Sep 2011 06:38:14 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: 2.095 X-Spam-Level: ** X-Spam-Status: No, score=2.095 tagged_above=-999 required=5 tests=[AWL=0.341, BAYES_50=0.001, MIME_BASE64_TEXT=1.753] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id as3wPYgiBDaa for ; Thu, 1 Sep 2011 06:38:14 -0700 (PDT) Received: from blu0-omc2-s16.blu0.hotmail.com (blu0-omc2-s16.blu0.hotmail.com [65.55.111.91]) by ietfa.amsl.com (Postfix) with ESMTP id 27F7E21F9058 for ; Thu, 1 Sep 2011 06:38:14 -0700 (PDT) Received: from BLU0-SMTP273 ([65.55.111.73]) by blu0-omc2-s16.blu0.hotmail.com with Microsoft SMTPSVC(6.0.3790.4675); Thu, 1 Sep 2011 06:39:47 -0700 X-Originating-IP: [122.233.195.56] X-Originating-Email: [wmwang2001@hotmail.com] Message-ID: Received: from WmwangHome ([122.233.195.56]) by BLU0-SMTP273.phx.gbl over TLS secured channel with Microsoft SMTPSVC(6.0.3790.4675); Thu, 1 Sep 2011 06:39:45 -0700 From: "Wang,Weiming" To: "Jamal Hadi Salim" , References: Date: Thu, 1 Sep 2011 21:39:48 +0800 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: base64 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5931 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.6109 X-OriginalArrivalTime: 01 Sep 2011 13:39:45.0591 (UTC) FILETIME=[9C7B9470:01CC68AC] Cc: "Joel M. Halpern" , Chuanhuang Li Subject: Re: [forces] comments #16 X-BeenThere: forces@ietf.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: ForCES WG mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 01 Sep 2011 13:38:14 -0000 RG9uZS4gDQoNCldlaW1pbmcNCi0tLS0tIE9yaWdpbmFsIE1lc3NhZ2UgLS0tLS0gDQpGcm9tOiAi SmFtYWwgSGFkaSBTYWxpbSIgPGhhZGlAbW9qYXRhdHUuY29tPg0KDQo+SSBhbSBnb2luZyB0byB0 cnkgYW5kIHdyYXAgdGhpcyB1cCB3aXRoIGEgZmV3IG1vcmUgY29tbWVudHMuDQo+IFRvIHJlZHVj ZSB0aGUgYW1vdW50IG9mIHRleHQgcG9zdGVkLCBJIHdvbnQgcG9zdCB3aGF0IHRoZQ0KPiBvcmln aW5hbCB0ZXh0IGxvb2tlZCBsaWtlIC0gaSBob3BlIHRoaXMgaXMgZmluZSB3aXRoIHRoZSBhdXRo b3JzLg0KPiANCj4gLS0tLQ0KPiA1NCkgU2VjdGlvbiA3DQo+IA0KPiBSZXdyaXRlIHRvOg0KPiAN Cj4gVGhpcyBzZWN0aW9uIGRlbW9uc3RyYXRlcyBleGFtcGxlcyBvbiBob3cgdGhlIExGQiBjbGFz c2VzIGRlZmluZWQgYnkNCj4gdGhlIEJhc2UgTEZCIGxpYnJhcnkgaW4gU2VjdGlvbiA2IGNhbiBi ZSBhcHBsaWVkIHRvIGFjaGlldmUgc29tZSB0eXBpY2FsDQo+IHJvdXRlciBmdW5jdGlvbnMuIFRo ZSBmdW5jdGlvbnMgZGVtb25zdHJhdGVkIGFyZToNCj4gDQo+IG8gSVB2NCBmb3J3YXJkaW5nDQo+ IA0KPiBvIEFSUCBwcm9jZXNzaW5nDQo+IA0KPiBJdCBpcyBhc3N1bWVkIHRoZSBMRkIgdG9wb2xv Z3kgb24gdGhlIEZFIGRlc2NyaWJlZCBoYXMgYWxyZWFkeSBiZWVuDQo+IGVzdGFibGlzaGVkIGJ5 IHRoZSBDRSBhbmQgbWFwcyB0byB0aGUgdXNlIGNhc2VzIGlsbHVzdHJhdGVkIGluIHRoaXMNCj4g c2VjdGlvbi4NCj4gDQo+IFRoZSB1c2UgY2FzZXMgZGVtb25zdHJhdGVkIGluIHRoaXMgc2VjdGlv biBhcmUgbWVyZSBleGFtcGxlcw0KPiBhbmQgYnkgbm8gbWVhbnMgc2hvdWxkIGJlIHRyZWF0ZWQg YXMgdGhlIG9ubHkgd2F5DQo+IG9uZSB3b3VsZCBjb25zdHJ1Y3Qgcm91dGVyIGZ1bmN0aW9uYWxp dHkgZnJvbSBMRkJzOyBiYXNlZA0KPiBvbiB0aGUgY2FwYWJpbGl0eSBvZiB0aGUgRkUocyksIGEg Q0Ugc2hvdWxkIGJlIGFibGUgdG8gZXhwcmVzcw0KPiBkaWZmZXJlbnQgTkUgYXBwbGljYXRpb25z Lg0KPiAtLS0tLS0tDQo+IA0KPiBjaGVlcnMsDQo+IGphbWFsDQo+ From wmwang2001@hotmail.com Thu Sep 1 06:57:57 2011 Return-Path: X-Original-To: forces@ietfa.amsl.com Delivered-To: forces@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 0A2A821F9AA0 for ; Thu, 1 Sep 2011 06:57:57 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: 2.708 X-Spam-Level: ** X-Spam-Status: No, score=2.708 tagged_above=-999 required=5 tests=[AWL=-0.335, BAYES_05=-1.11, J_CHICKENPOX_16=0.6, J_CHICKENPOX_37=0.6, J_CHICKENPOX_38=0.6, J_CHICKENPOX_39=0.6, MIME_BASE64_TEXT=1.753] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id PJ-hsfwY7VFJ for ; Thu, 1 Sep 2011 06:57:56 -0700 (PDT) Received: from blu0-omc2-s36.blu0.hotmail.com (blu0-omc2-s36.blu0.hotmail.com [65.55.111.111]) by ietfa.amsl.com (Postfix) with ESMTP id 7039421F9A9C for ; Thu, 1 Sep 2011 06:57:56 -0700 (PDT) Received: from BLU0-SMTP393 ([65.55.111.71]) by blu0-omc2-s36.blu0.hotmail.com with Microsoft SMTPSVC(6.0.3790.4675); Thu, 1 Sep 2011 06:59:29 -0700 X-Originating-IP: [122.233.195.56] X-Originating-Email: [wmwang2001@hotmail.com] Message-ID: Received: from WmwangHome ([122.233.195.56]) by BLU0-SMTP393.phx.gbl over TLS secured channel with Microsoft SMTPSVC(6.0.3790.4675); Thu, 1 Sep 2011 06:59:27 -0700 From: "Wang,Weiming" To: "Jamal Hadi Salim" , References: Date: Thu, 1 Sep 2011 21:59:30 +0800 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: base64 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5931 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.6109 X-OriginalArrivalTime: 01 Sep 2011 13:59:27.0854 (UTC) FILETIME=[5D2A98E0:01CC68AF] Cc: "Joel M. Halpern" , Chuanhuang Li Subject: Re: [forces] comments #17 X-BeenThere: forces@ietf.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: ForCES WG mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 01 Sep 2011 13:57:57 -0000 RG9uZS4gSSBhbHNvIGVuam95ZWQgdGhlIGVmZmljaWVuY3kgOikNCg0KdGhhbmtzLA0KV2VpbWlu Zw0KLS0tLS0gT3JpZ2luYWwgTWVzc2FnZSAtLS0tLSANCkZyb206ICJKYW1hbCBIYWRpIFNhbGlt IiA8aGFkaUBtb2phdGF0dS5jb20+DQoNCj5BIGJpdCBsb25nIC0gYnV0IG11Y2ggZWFzaWVyIHRv IHdyaXRlIGl0IHRoaXMgd2F5IGluc3RlYWQgb2YgMjAgc21hbGwgY29tbWVudHM6DQo+IA0KPiAt LS0tDQo+IA0KPiBGaWd1cmUgMSAoU2VjdGlvbiAzLjIuMykgc2hvd3MgYSB0eXBpY2FsIElQdjQg Zm9yd2FyZGluZyBwcm9jZXNzaW5nDQo+IHBhdGggYnkgdXNlIG9mIHRoZSBiYXNlIExGQiBjbGFz c2VzLg0KPiANCj4gQSBudW1iZXIgb2YgRXRoZXJQSFlDb3AgTEZCKHNlY3Rpb24gWFhYKSBpbnN0 YW5jZXMgYXJlIHVzZWQgdG8gZGVzY3JpYmUNCj4gcGh5c2ljYWwgbGF5ZXIgZnVuY3Rpb25zIG9m IHRoZSBwb3J0cy4gUEhZUG9ydElEIG1ldGFkYXR1bSBpcw0KPiBnZW5lcmF0ZWQgYnkgRXRoZXJQ SFlDb3AgTEZCIGFuZCBpcyB1c2VkIGJ5IGFsbCB0aGUgc3Vic2VxdWVudA0KPiBkb3duc3RyZWFt IExGQnMuICBBbiBFdGhlck1BQ0luIExGQihzZWN0aW9uIFhYWCksIHdoaWNoIGRlc2NyaWJlDQo+ IHRoZSBNQUMgbGF5ZXIgcHJvY2Vzc2luZywgZm9sbG93cyBldmVyeSBFdGhlclBIWUNvcCBMRkIu DQo+IFRoZSBFdGhlck1BQ0luIExGQiBtYXkgZG8gYSBsb2NhbGl0eSBjaGVjayBvZiBNQUMgYWRk cmVzc2VzIGlmDQo+IHRoZSBDRSBjb25maWd1cmVzIHRoZSBhcHByb3ByaWF0ZSBFdGhlck1BQ0lu IExGQiBjb21wb25lbnQuDQo+IA0KPiBFdGhlcm5ldCBwYWNrZXRzIG91dCBvZiB0aGUgRXRoZXJN QUNJbiBMRkIgYXJlIHNlbnQgdG8gYW4NCj4gRXRoZXJDbGFzc2lmaWVyIExGQiAoc2VjdGlvbiBY WFgpIHRvIGJlIGRlY2Fwc3VsYXRlZCBhbmQgY2xhc3NpZmllZA0KPiBpbnRvIG5ldHdvcmsgbGF5 ZXIgdHlwZXMgbGlrZSBJUHY0LCBJUHY2LCBBUlAsIGV0Yy4gSW4gdGhlIGV4YW1wbGUNCj4gdXNl IGNhc2UsIGV2ZXJ5IHBoeXNpY2FsIEV0aGVybmV0IGludGVyZmFjZSBpcyBhc3NvY2lhdGVkIHdp dGggb25lIENsYXNzaWZpZXINCj4gaW5zdGFuY2U7IGFsdGhvdWdoIG5vdCBpbGx1c3RyYXRlZCwg aXQgaXMgYWxzbyBmZWFzaWJsZSB0aGF0IGFsbA0KPiBwaHlzaWNhbCBpbnRlcmZhY2VzIGFyZSBh c3NvY2lhdGVkIHdpdGggb25seSBvbmUgRXRoZXJuZXQgQ2xhc3NpZmllcg0KPiBpbnN0YW5jZS4N Cj4gDQo+IEV0aGVyQ2xhc3NpZmllciB1c2VzIHRoZSBQSFlQb3J0SUQgbWV0YWRhdHVtLCB0aGUg RXRoZXJuZXQgdHlwZSBvZiB0aGUNCj4gaW5wdXQgcGFja2V0LCBhbmQgVmxhbklEIChpZiBwcmVz ZW50IGluIHRoZSBpbnB1dCBFdGhlcm5ldCBwYWNrZXRzKSwgdG8NCj4gZGVjaWRlIHRoZSBwYWNr ZXQgbmV0d29yayBsYXllciB0eXBlIGFuZCB0aGUgTEZCIG91dHB1dCBwb3J0IHRvIHRoZQ0KPiBk b3duc3RyZWFtIExGQi4gVGhlIEV0aGVyQ2xhc3NpZmllciBMRkIgYWxzbyBhc3NpZ25zIGEgbmV3 IGxvZ2ljYWwgcG9ydA0KPiBJRCBtZXRhZGF0YSB0byB0aGUgcGFja2V0IGZvciBsYXRlciB1c2Uu IFRoZSBFdGhlckNsYXNzaWZpZXINCj4gbWF5IGFsc28gZ2VuZXJhdGUgc29tZSBuZXcgbWV0YWRh dGEgZm9yIGV2ZXJ5DQo+IHBhY2tldCBsaWtlIEV0aGVyVHlwZSwgU3JjTUFDLCBEc3RNQUMsIExv Z2ljUG9ydElELCBldGMgZm9yIGNvbnN1bXB0aW9uDQo+IGJ5IGRvd25zdHJlYW0gTEZCcy4NCj4g DQo+IElmIGEgcGFja2V0IGlzIGNsYXNzaWZpZWQgYXMgYW4gSVB2NCBwYWNrZXQsIGl0IGlzIHNl bnQgZG93bnN0cmVhbSB0byBhbg0KPiBJUHY0VmFsaWRhdG9yIExGQihzZWN0aW9uIFhYWCkgdG8g dmFsaWRhdGUgdGhlIElQdjQgcGFja2V0LiBJbiB0aGUNCj4gdmFsaWRhdG9yIExGQiwgSVB2NCBw YWNrZXRzIGFyZSB2YWxpZGF0ZWQgYW5kIGFyZSBhZGRpdGlvbmFsbHkNCj4gY2xhc3NpZmllZCBp bnRvIGVpdGhlciBJUHY0IHVuaWNhc3QgcGFja2V0cyBhbmQgbXVsdGljYXN0IHBhY2tldHMuDQo+ IElQdjQgdW5pY2FzdCBwYWNrZXRzIGFyZSBzZW50IHRvIGRvd25zdHJlYW0gdG8gdGhlIElQdjRV Y2FzdExQTQ0KPiBMRkIoc2VjdGlvbiBYWFgpLg0KPiANCj4gVGhlIElQdjRVY2FzdExQTSBMRkIg aXMgd2hlcmUgdGhlIGxvbmdlc3QgcHJlZml4IG1hdGNoIGRlY2lzaW9uIGlzIG1hZGUsDQo+IGFu ZCBhIG5leHQgaG9wIHNlbGVjdGlvbiBpcyBzZWxlY3RlZC4gVGhlIG5leHRob3AgSUQgbWV0YWRh dGEgaXMNCj4gZ2VuZXJhdGVkIGJ5IHRoZSBJUHY0VWNhc3RMUE0gTEZCIHRvIGJlIGNvbnN1bWVk IGRvd25zdHJlYW0NCj4gYnkgdGhlIElQdjROZXh0SG9wIExGQihzZWN0aW9uIFhYWCkuDQo+IA0K PiBUaGUgSVB2NE5leHRIb3AgTEZCIHVzZXMgdGhlIG5leHRob3AgSUQgbWV0YWRhdGEgdG8gZG8g ZGVyaXZlDQo+IHdoZXJlIHRoZSBwYWNrZXQgaXMgdG8gZ28gbmV4dCBhbmQgdGhlIG1lZGlhIGVu Y2Fwc3VsYXRpb24gdHlwZSBmb3INCj4gdGhlIHBvcnQsIGV0Yy4gVGhlIElQdjROZXh0SG9wIExG QiBnZW5lcmF0ZXMgdGhlIEwzUG9ydElEIG1ldGFkYXRhDQo+IHVzZWQgdG8gaWRlbnRpZnkgYSBu ZXh0IGhvcCBvdXRwdXQgcGh5c2ljYWwvbG9naWNhbCBwb3J0Lg0KPiBJbiB0aGUgZXhhbXBsZSB1 c2UgY2FzZSwgdGhlIG5leHQgaG9wIG91dHB1dCBwb3J0IGlzIGFuIEV0aGVybmV0IHR5cGU7DQo+ IGFzIGEgcmVzdWx0LCB0aGUgcGFja2V0IGFuZCBpdHMgTDMgcG9ydCBJRCBtZXRhZGF0dW0gYXJl IHNlbnQgZG93bnN0cmVhbQ0KPiB0byBhbiBFdGhlckVuY2FwIExGQihzZWN0aW9uIFhYWCkuDQo+ IA0KPiBUaGUgRXRoZXJFbmNhcCBMRkIgZW5jYXBzdWxhdGVzIHRoZSBpbmNvbWluZyBwYWNrZXQg aW50byBhbiBFdGhlcm5ldCBmcmFtZS4NCj4gQSBCYXNpY01ldGFkYXRhRGlzcGF0Y2ggTEZCIChz ZWN0aW9uIFhYWCkgZm9sbG93cyB0aGUgRXRoZXJFbmNhcCBMRkIuDQo+IA0KPiBUaGUgQmFzaWNN ZXRhZGF0YURpc3BhdGNoIExGQiBpcyB3aGVyZSBwYWNrZXRzIGFyZSBmaW5hbGx5IGRpc3BhdGNo ZWQgdG8NCj4gZGlmZmVyZW50IG91dHB1dCBwaHlzaWNhbC9sb2dpY2FsIHBvcnRzIGFiYXNlZCBv biB0aGUgTDNQb3J0SUQgbWV0YWRhdHVtDQo+IHNlbnQgdG8gdGhlIExGQi4NCj4gLS0tLS0tDQo+ IA0KPiBjaGVlcnMsDQo+IGphbWFsDQo+ From jmh@joelhalpern.com Thu Sep 1 06:59:48 2011 Return-Path: X-Original-To: forces@ietfa.amsl.com Delivered-To: forces@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 3594521F9AAF for ; Thu, 1 Sep 2011 06:59:48 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -102.536 X-Spam-Level: X-Spam-Status: No, score=-102.536 tagged_above=-999 required=5 tests=[AWL=0.063, BAYES_00=-2.599, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id a9et3DI9essl for ; Thu, 1 Sep 2011 06:59:47 -0700 (PDT) Received: from hermes.out.tigertech.net (hermes-ipv6.tigertech.net [IPv6:2604:4f00::1:0:0:16]) by ietfa.amsl.com (Postfix) with ESMTP id BB64921F9AB1 for ; Thu, 1 Sep 2011 06:59:47 -0700 (PDT) Received: from localhost (localhost [127.0.0.1]) by hermes.tigertech.net (Postfix) with ESMTP id 9CAAD4300FD; Thu, 1 Sep 2011 07:01:20 -0700 (PDT) X-Virus-Scanned: Debian amavisd-new at hermes.tigertech.net Received: from [10.10.10.104] (pool-71-161-50-73.clppva.btas.verizon.net [71.161.50.73]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by hermes.tigertech.net (Postfix) with ESMTPSA id A3967430080; Thu, 1 Sep 2011 07:01:19 -0700 (PDT) Message-ID: <4E5F9018.30400@joelhalpern.com> Date: Thu, 01 Sep 2011 10:00:56 -0400 From: "Joel M. Halpern" User-Agent: Mozilla/5.0 (Windows NT 5.1; rv:6.0) Gecko/20110812 Thunderbird/6.0 MIME-Version: 1.0 To: Chuanhuang Li References: , <201109010919027653873@mail.zjgsu.edu.cn>, <201109011105325780938@mail.zjgsu.edu.cn>, <4E5EF6E8.4050903@stevecrocker.com> <201109011511399686610@mail.zjgsu.edu.cn> In-Reply-To: <201109011511399686610@mail.zjgsu.edu.cn> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: "forces@ietf.org" Subject: Re: [forces] comments on EtherClassifier output port X-BeenThere: forces@ietf.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: ForCES WG mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 01 Sep 2011 13:59:48 -0000 I can live with treating it as an exception, and using ExceptionOut. Yours, Joel On 9/1/2011 3:11 AM, Chuanhuang Li wrote: > Hi, All > We need add an LFB port in EtherClassifier to output the packets > which can't be classified. They can be processed in other LFB or > redirected to CE. Joel agree with me on this suggest. > His opinion, this LFB port can be named "noMatchingClassification". > > Joel, but I think, similar to other LFBs, it is best named "ExceptionOut". We > can use ExceptionID to describe the packets' status, so CE can know > how to process them. > > Yours, > Chuanhuang > > > From jmh@joelhalpern.com Thu Sep 1 07:07:12 2011 Return-Path: X-Original-To: forces@ietfa.amsl.com Delivered-To: forces@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 39FA521F9A96 for ; Thu, 1 Sep 2011 07:07:12 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -102.237 X-Spam-Level: X-Spam-Status: No, score=-102.237 tagged_above=-999 required=5 tests=[AWL=-0.238, BAYES_00=-2.599, J_CHICKENPOX_47=0.6, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id wAKU0rh9xWqv for ; Thu, 1 Sep 2011 07:07:11 -0700 (PDT) Received: from hermes.out.tigertech.net (hermes-ipv6.tigertech.net [IPv6:2604:4f00::1:0:0:16]) by ietfa.amsl.com (Postfix) with ESMTP id D382D21F9A98 for ; Thu, 1 Sep 2011 07:07:11 -0700 (PDT) Received: from localhost (localhost [127.0.0.1]) by hermes.tigertech.net (Postfix) with ESMTP id 42ABD4300E4; Thu, 1 Sep 2011 07:08:44 -0700 (PDT) X-Virus-Scanned: Debian amavisd-new at hermes.tigertech.net Received: from [10.10.10.104] (pool-71-161-50-73.clppva.btas.verizon.net [71.161.50.73]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by hermes.tigertech.net (Postfix) with ESMTPSA id 1A712430071; Thu, 1 Sep 2011 07:08:42 -0700 (PDT) Message-ID: <4E5F91D3.9030400@joelhalpern.com> Date: Thu, 01 Sep 2011 10:08:19 -0400 From: "Joel M. Halpern" User-Agent: Mozilla/5.0 (Windows NT 5.1; rv:6.0) Gecko/20110812 Thunderbird/6.0 MIME-Version: 1.0 To: "Wang,Weiming" References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: forces@ietf.org, Chuanhuang Li Subject: Re: [forces] comments #14 X-BeenThere: forces@ietf.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: ForCES WG mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 01 Sep 2011 14:07:12 -0000 I am probably missing a bit of context. As a general rule, we do not use metadata IDs as table indices. The reason is that they are allocated across all the uses of metdaa, so they are not a dense set. Using them as an index produces a large, sparse, table. Not particularly good. We can use the values of a metadatum as an index if that particular set of values is designed to be dense, and start from a very small number (0, 1, or so). Some metadata are designed that way, some aren't. Yours, Joel On 9/1/2011 9:33 AM, Wang,Weiming wrote: > Fixed all except on the following point. > Chuanhuang,pls double check the possibility to use a table in table here. > > thanks, > Weiming > ----- Original Message ----- > From: "Jamal Hadi Salim" >> The table contains entires of a Metadata ID, a Metadata value and an OutputIndex. >> >> The LFB uses all existing metadata associated with every input packet with their >> metadata IDs and metadata values as the content keys to look up the table to find out the relevant OutputIndex. >> If a packet failed lookup of the table, the packet will just be dropped inside the LFB. >> > Ok, now i realize my confusion was technical not editorial. It seems > sensible that > we should avoid content keys if we can get away with indexed tables. I am sorry > if i am rehashing past discussion: Why was this not a table inside a > table indirection? > First you use the Metadata ID to index into table 1 to find the table for > that Metadata. Drop if non-existent. Next you lookup the second table > using the metadata value to find the OutputIndex. Drop if non-existent. From wmwang2001@hotmail.com Thu Sep 1 07:11:00 2011 Return-Path: X-Original-To: forces@ietfa.amsl.com Delivered-To: forces@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 3AF8F21F9B8F for ; Thu, 1 Sep 2011 07:11:00 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: 2.692 X-Spam-Level: ** X-Spam-Status: No, score=2.692 tagged_above=-999 required=5 tests=[AWL=-0.262, BAYES_50=0.001, J_CHICKENPOX_16=0.6, J_CHICKENPOX_37=0.6, MIME_BASE64_TEXT=1.753] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Zw9z-yKI6CXe for ; Thu, 1 Sep 2011 07:10:59 -0700 (PDT) Received: from blu0-omc2-s10.blu0.hotmail.com (blu0-omc2-s10.blu0.hotmail.com [65.55.111.85]) by ietfa.amsl.com (Postfix) with ESMTP id 4DEE821F9AB8 for ; Thu, 1 Sep 2011 07:10:59 -0700 (PDT) Received: from BLU0-SMTP311 ([65.55.111.72]) by blu0-omc2-s10.blu0.hotmail.com with Microsoft SMTPSVC(6.0.3790.4675); Thu, 1 Sep 2011 07:12:32 -0700 X-Originating-IP: [122.233.195.56] X-Originating-Email: [wmwang2001@hotmail.com] Message-ID: Received: from WmwangHome ([122.233.195.56]) by BLU0-SMTP311.phx.gbl over TLS secured channel with Microsoft SMTPSVC(6.0.3790.4675); Thu, 1 Sep 2011 07:12:30 -0700 From: "Wang,Weiming" To: "Jamal Hadi Salim" , References: Date: Thu, 1 Sep 2011 22:12:33 +0800 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: base64 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5931 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.6109 X-OriginalArrivalTime: 01 Sep 2011 14:12:31.0335 (UTC) FILETIME=[30284F70:01CC68B1] Cc: "Joel M. Halpern" , Chuanhuang Li Subject: Re: [forces] comments #18 X-BeenThere: forces@ietf.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: ForCES WG mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 01 Sep 2011 14:11:00 -0000 RG9uZSB3aXRoIGVmZmljaWVuY3kgOiApDQoNCnRoYW5rcyBKYW1hbCENCg0KV2VpbWluZw0KDQot LS0tLSBPcmlnaW5hbCBNZXNzYWdlIC0tLS0tIA0KRnJvbTogIkphbWFsIEhhZGkgU2FsaW0iIDxo YWRpQG1vamF0YXR1LmNvbT4NCg0KPiBBbm90aGVyIGxvbmcgb25lIC0gc2ltaWxhciBpbiBzcGly aXQgdG8gZWFybGllciBvbmUNCj4gDQo+IC0tLS0tDQo+IDU2KSBTZWN0aW9uIDcuMg0KPiANCj4g RmlndXJlIDIgc2hvd3MgdGhlIHByb2Nlc3NpbmcgcGF0aCBmb3IgQVJQIHByb3RvY29sIGluIHRo ZSBjYXNlIHRoZQ0KPiBDRSBpbXBsZW1lbnRzIHRoZSBBUlAgcHJvY2Vzc2luZyBmdW5jdGlvbi4g Qnkgbm8gbWVhbnMgaXMgdGhpcw0KPiB0aGUgb25seSB3YXkgQVJQIHByb2Nlc3NpbmcgY291bGQg YmUgYWNoaWV2ZWQ7IGFzIGFuIGV4YW1wbGUNCj4gQVJQIHByb2Nlc3NpbmcgY291bGQgaGFwcGVu IGF0IHRoZSBGRSAtIGJ1dCB0aGF0IGRpc2N1c3Npb24gaXMgb3V0DQo+IG9mIHNjb3BlIGZvciB0 aGlzIHVzZSBjYXNlLg0KPiANCj4gVGhlcmUgYXJlIHR3byB3YXlzIEFSUCBwcm9jZXNzaW5nIGNv dWxkIGJlIHRyaWdnZXJlZCBpbiB0aGUgQ0UNCj4gYXMgaWxsdXN0cmF0ZWQgaW4gZmlndXJlIDI6 DQo+IA0KPiBvIEFSUCBwYWNrZXRzIGFycml2aW5nIGZyb20gb3V0c2lkZSBvZiB0aGUgTkUNCj4g byBJUFY0IHBhY2tldHMgZmFpbGluZyB0byByZXNvbHZlIHdpdGhpbiB0aGUgRkUNCj4gDQo+IEFS UCBwYWNrZXRzIGZyb20gbmV0d29yayBpbnRlcmZhY2VzIGFyZSBmaWx0ZXJlZCBvdXQgYnkgRXRo ZXJDbGFzc2lmaWVyDQo+IExGQi4gVGhlIGNsYXNzaWZpZWQgQVJQIHBhY2tldHMgYW5kIGFzc29j aWF0ZWQgbWV0YWRhdGEgYXJlIHRoZW4gc2VudA0KPiBkb3duc3RyZWFtIHRvIHRoZSBSZWRpcmVj dE91dCBMRkIoc2VjdGlvbiBYWFgpIHRvIGJlIHRyYW5zcG9ydGVkIHRvIENFLg0KPiANCj4gVGhl IEV0aGVyRW5jYXAgTEZCLCBhcyBkZXNjcmliZWQgZWFybGllciwgcmVjZWl2ZXMgcGFja2V0cyB0 aGF0DQo+IG5lZWQgRXRoZXJuZXQgTDIgZW5jYXBzdWxhdGluZy4gV2hlbiB0aGUgRXRoZXJFbmNh cCBMRkIgZmFpbHMNCj4gdG8gZmluZCB0aGUgbmVjZXNzYXJ5IEwyIEV0aGVybmV0IGluZm9ybWF0 aW9uIHRvIGVuY2Fwc3VsYXRlDQo+IHRoZSBwYWNrZXQgd2l0aCwgaXQgb3V0cHV0cyB0aGUgcGFj a2V0IHRvIGl0cyBFeGNlcHRpb25PdXQNCj4gTEZCIHBvcnQuIERvd25zdHJlYW0gdG8gRXRoZXJF bmNhcCBMRkIncyBFeGNlcHRpb25PdXQgTEZCIHBvcnQgaXMNCj4gdGhlIFJlZGlyZWN0T3V0IExG QiB3aGljaCB0cmFuc3BvcnRzIHRoZSBwYWNrZXQgdG8gdGhlIENFIChzZWUNCj4gU2VjdGlvbiBY WFggZm9yIGRldGFpbHMpLg0KPiANCj4gVG8gYWNoaWV2ZSBpdHMgZ29hbCwgdGhlIENFIG5lZWRz IHRvIGdlbmVyYXRlIEFSUCByZXF1ZXN0IGFuZA0KPiByZXNwb25zZSBwYWNrZXRzIGFuZCBzZW5k IHRoZW0gdG8gZXh0ZXJuYWwgKHRvIHRoZSBORSkgbmV0d29ya3MuDQo+IEFSUCByZXF1ZXN0IGFu ZCByZXNwb25zZSBwYWNrZXRzIGZyb20gdGhlIENFIGFyZSByZWRpcmVjdGVkIHRvIGFuDQo+IEZF IHZpYSBhIFJlZGlyZWN0SW4gTEZCKHNlY3Rpb24gWFhYKS4NCj4gDQo+IEFzIHdhcyB0aGUgY2Fz ZSB3aXRoIGZvcndhcmRlZCBJUHY0IHBhY2tldHMsIG91dGdvaW5nIEFSUCBwYWNrZXRzIGFyZSBh bHNvDQo+IGVuY2Fwc3VsYXRlZCB0byBFdGhlcm5ldCBmb3JtYXQgYnkgdGhlIEV0aGVyRW5jYXAg TEZCLCBhbmQgdGhlbg0KPiBkaXNwYXRjaGVkIHRvIGRpZmZlcmVudCBpbnRlcmZhY2VzIHZpYSBh IEJhc2ljTWV0YWRhdGFEaXNwYXRjaCBMRkIuDQo+IFRoZSBCYXNpY01ldGFkYXRhRGlzcGF0Y2gg TEZCIGRpc3BhdGNoZXMgdGhlIHBhY2tldHMgYWNjb3JkaW5nIHRvDQo+IHRoZSBMM1BvcnRJRCBt ZXRhZGF0dW0gaW5jbHVkZWQgaW4gZXZlcnkgQVJQIHBhY2tldCBzZW50IGZyb20gQ0UuDQo+IC0t LS0NCj4gDQo+IGNoZWVycywNCj4gamFtYWwNCj4= From hadi@mojatatu.com Thu Sep 1 09:48:53 2011 Return-Path: X-Original-To: forces@ietfa.amsl.com Delivered-To: forces@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 2A9F421F96BF for ; Thu, 1 Sep 2011 09:48:53 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -102.328 X-Spam-Level: X-Spam-Status: No, score=-102.328 tagged_above=-999 required=5 tests=[AWL=0.049, BAYES_00=-2.599, FM_FORGED_GMAIL=0.622, J_CHICKENPOX_47=0.6, RCVD_IN_DNSWL_LOW=-1, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id s5qyAt8UB1Wz for ; Thu, 1 Sep 2011 09:48:52 -0700 (PDT) Received: from mail-ew0-f44.google.com (mail-ew0-f44.google.com [209.85.215.44]) by ietfa.amsl.com (Postfix) with ESMTP id 1946221F96BB for ; Thu, 1 Sep 2011 09:48:51 -0700 (PDT) Received: by ewy19 with SMTP id 19so1198792ewy.31 for ; Thu, 01 Sep 2011 09:50:24 -0700 (PDT) Received: by 10.223.6.91 with SMTP id 27mr26620fay.146.1314895824144; Thu, 01 Sep 2011 09:50:24 -0700 (PDT) MIME-Version: 1.0 Received: by 10.223.126.193 with HTTP; Thu, 1 Sep 2011 09:50:04 -0700 (PDT) In-Reply-To: <4E5F91D3.9030400@joelhalpern.com> References: <4E5F91D3.9030400@joelhalpern.com> From: Jamal Hadi Salim Date: Thu, 1 Sep 2011 12:50:04 -0400 Message-ID: To: "Joel M. Halpern" Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Cc: forces@ietf.org, Chuanhuang Li Subject: Re: [forces] comments #14 X-BeenThere: forces@ietf.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: ForCES WG mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 01 Sep 2011 16:48:53 -0000 Those are good reasons - and i will be happy if you kept the representation as is as long as you say something of whats below in the text. cheers, jamal On Thu, Sep 1, 2011 at 10:08 AM, Joel M. Halpern wrot= e: > I am probably missing a bit of context. > As a general rule, we do not use metadata IDs as table indices. =A0The re= ason > is that they are allocated across all the uses of metdaa, so they are not= a > dense set. =A0Using them as an index produces a large, sparse, table. =A0= Not > particularly good. > > We can use the values of a metadatum as an index if that particular set o= f > values is designed to be dense, and start from a very small number (0, 1,= or > so). =A0Some metadata are designed that way, some aren't. > > Yours, > Joel > > On 9/1/2011 9:33 AM, Wang,Weiming wrote: >> >> Fixed all except on the following point. >> Chuanhuang,pls double check the possibility to use a table in table here= . >> >> thanks, >> Weiming >> ----- Original Message ----- >> From: "Jamal Hadi Salim" >>> >>> The table contains entires of a Metadata ID, a Metadata value =A0and an >>> OutputIndex. >>> >>> The LFB uses all existing metadata associated with every input packet >>> with their >>> metadata IDs and metadata values as the content keys to look up the tab= le >>> to find out the relevant OutputIndex. >>> If a packet failed lookup of the table, the packet will just be dropped >>> inside the LFB. >>> >> Ok, now i realize my confusion was technical not editorial. It seems >> sensible that >> we should avoid content keys if we can get away with indexed tables. I a= m >> sorry >> if i am rehashing past discussion: Why was this not a table inside a >> table indirection? >> First you use the Metadata ID to index into table 1 to find the table fo= r >> that Metadata. Drop if non-existent. Next you lookup the second table >> using the metadata value to find the OutputIndex. Drop if non-existent. > From chuanhuang_li@mail.zjgsu.edu.cn Thu Sep 1 18:08:57 2011 Return-Path: X-Original-To: forces@ietfa.amsl.com Delivered-To: forces@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 6D85421F940C for ; Thu, 1 Sep 2011 18:08:57 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -0.134 X-Spam-Level: X-Spam-Status: No, score=-0.134 tagged_above=-999 required=5 tests=[AWL=0.071, BAYES_00=-2.599, J_CHICKENPOX_47=0.6, MIME_BASE64_BLANKS=0.041, MIME_BASE64_TEXT=1.753] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id uJLXEtDsRYyg for ; Thu, 1 Sep 2011 18:08:57 -0700 (PDT) Received: from mail.zjgsu.edu.cn (ucmail.zjgsu.edu.cn [124.160.64.1]) by ietfa.amsl.com (Postfix) with SMTP id 6690D21F9402 for ; Thu, 1 Sep 2011 18:08:53 -0700 (PDT) Received: from RobinLee (unknown [10.20.0.167]) by mailportal (Coremail) with SMTP id rBCI85DLgnXKK2BOwM9qAA--.35442S2; Fri, 02 Sep 2011 09:05:14 +0800 (CST) Date: Fri, 2 Sep 2011 09:11:08 +0800 From: "Chuanhuang Li" To: "Jamal Hadi Salim" , "Joel M. Halpern" References: , , , , <4E5F91D3.9030400@joelhalpern.com> Message-ID: <201109020911078756756@mail.zjgsu.edu.cn> Organization: Zhejiang Gongshang Univercity X-mailer: Foxmail 6, 15, 201, 23 [cn] Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: base64 X-CM-TRANSID: rBCI85DLgnXKK2BOwM9qAA--.35442S2 X-Coremail-Antispam: 1Uf129KBjDUn29KB7ZKAUJUUUUUYxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJ3UbIYCTnIWIevJa73UjIFyTuYvj4RJUUUUUUUU X-CM-SenderInfo: pfkxt0xkxd0wxbolqzhdloh6pmjv3hxhgxhubq/ Cc: forces Subject: Re: [forces] comments #14 X-BeenThere: forces@ietf.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: ForCES WG mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 02 Sep 2011 01:08:57 -0000 SGksQWxsDQoNCkFzIGFuIGFsdGVybmF0aXZlLCBpIHRoaW5rIHdlIGNhbiBkZWZpbmUgTWV0YWRh dGFEaXNwYXRjaFRhYmxlIGJ5IHVzaW5nIHRhYmxlIGluIHRhYmxlIGFzIEphbWFsIHNhaWQuDQpQ aGVyaGFwcywgdGhpcyBkZWZpbml0aW9uIGlzIG1vcmUgY29udmluaWVudC4gDQpuYW1lOiBNZXRh ZGF0YURpc3BhdGNoVGFibGUNCnR5cGU6IE1ldGFkYXRhRGlzcGF0Y2hUYWJsZVR5cGUgDQphcnJh eSBvZjoNCnsNCiAgICBNZXRhZGF0YUlEICAvKnRoZSBJRCB2YWx1ZSBvZiB0aGUgbWV0YWRhdGEu Ki8NCiAgICBhcnJheSBvZjoNCiAgICB7ICANCiAgICAgICAgTWV0YWRhdGFWYWx1ZSwgICANCiAg ICAgICAgT3V0cHV0SW5kZXggICAvKmdyb3VwIG91dHB1dCBwb3J0IGluZGV4Ki8NCiAgICAgfQ0K fQ0KDQpGaXJzdCwgV2UgdXNlIHRoZSBJRCB2YWx1ZSBvZiB0aGUgbWV0YWRhdGEgdG8gbG9va3Vw IHRoZSB0YWJsZSAoTm90ZSwgbm90IGZpbmRpbmcgaW50ZXJuYWwgaW5kZXgsIA0KYnV0IHRoZSBN ZXRhZGF0YUlEIG1lbWJlciBpbiB0aGUgZW50cnkuKSwgYW5kIHdpbGwgZ2V0IGEgc3ViLXRhYmxl LiBEcm9wIGlmIG5vbi1leGlzdGVudC4gDQpOZXh0IHdlIGxvb2t1cCB0aGUgc3ViLXRhYmxlIHVz aW5nIHRoZSBtZXRhZGF0YSB2YWx1ZSB0bw0KIGZpbmQgdGhlIE91dHB1dEluZGV4LiBEcm9wIGlm IG5vbi1leGlzdGVudC4NCg0KWW91cnMsDQpDaHVhbmh1YW5nCQ0KDQo9PT09PT09IDIwMTEtMDkt MDIgMDA6NDk6MTUgSmFtYWwgSGFkaSBTYWxpbSwgd3JvdGU6ID09PT09PT0NCg0KPlRob3NlIGFy ZSBnb29kIHJlYXNvbnMgLSBhbmQgaSB3aWxsIGJlIGhhcHB5IGlmIHlvdSBrZXB0IHRoZQ0KPnJl cHJlc2VudGF0aW9uIGFzIGlzDQo+YXMgbG9uZyBhcyB5b3Ugc2F5IHNvbWV0aGluZyBvZiB3aGF0 cyBiZWxvdyBpbiB0aGUgdGV4dC4NCj4NCj5jaGVlcnMsDQo+amFtYWwNCj4NCj5PbiBUaHUsIFNl cCAxLCAyMDExIGF0IDEwOjA4IEFNLCBKb2VsIE0uIEhhbHBlcm4gPGptaEBqb2VsaGFscGVybi5j b20+IHdyb3RlOg0KPj4gSSBhbSBwcm9iYWJseSBtaXNzaW5nIGEgYml0IG9mIGNvbnRleHQuDQo+ PiBBcyBhIGdlbmVyYWwgcnVsZSwgd2UgZG8gbm90IHVzZSBtZXRhZGF0YSBJRHMgYXMgdGFibGUg aW5kaWNlcy4goFRoZSByZWFzb24NCj4+IGlzIHRoYXQgdGhleSBhcmUgYWxsb2NhdGVkIGFjcm9z cyBhbGwgdGhlIHVzZXMgb2YgbWV0ZGFhLCBzbyB0aGV5IGFyZSBub3QgYQ0KPj4gZGVuc2Ugc2V0 LiCgVXNpbmcgdGhlbSBhcyBhbiBpbmRleCBwcm9kdWNlcyBhIGxhcmdlLCBzcGFyc2UsIHRhYmxl LiCgTm90DQo+PiBwYXJ0aWN1bGFybHkgZ29vZC4NCj4+DQo+PiBXZSBjYW4gdXNlIHRoZSB2YWx1 ZXMgb2YgYSBtZXRhZGF0dW0gYXMgYW4gaW5kZXggaWYgdGhhdCBwYXJ0aWN1bGFyIHNldCBvZg0K Pj4gdmFsdWVzIGlzIGRlc2lnbmVkIHRvIGJlIGRlbnNlLCBhbmQgc3RhcnQgZnJvbSBhIHZlcnkg c21hbGwgbnVtYmVyICgwLCAxLCBvcg0KPj4gc28pLiCgU29tZSBtZXRhZGF0YSBhcmUgZGVzaWdu ZWQgdGhhdCB3YXksIHNvbWUgYXJlbid0Lg0KPj4NCj4+IFlvdXJzLA0KPj4gSm9lbA0KPj4NCj4+ IE9uIDkvMS8yMDExIDk6MzMgQU0sIFdhbmcsV2VpbWluZyB3cm90ZToNCj4+Pg0KPj4+IEZpeGVk IGFsbCBleGNlcHQgb24gdGhlIGZvbGxvd2luZyBwb2ludC4NCj4+PiBDaHVhbmh1YW5nLHBscyBk b3VibGUgY2hlY2sgdGhlIHBvc3NpYmlsaXR5IHRvIHVzZSBhIHRhYmxlIGluIHRhYmxlIGhlcmUu DQo+Pj4NCj4+PiB0aGFua3MsDQo+Pj4gV2VpbWluZw0KPj4+IC0tLS0tIE9yaWdpbmFsIE1lc3Nh Z2UgLS0tLS0NCj4+PiBGcm9tOiAiSmFtYWwgSGFkaSBTYWxpbSI8aGFkaUBtb2phdGF0dS5jb20+ DQo+Pj4+DQo+Pj4+IFRoZSB0YWJsZSBjb250YWlucyBlbnRpcmVzIG9mIGEgTWV0YWRhdGEgSUQs IGEgTWV0YWRhdGEgdmFsdWUgoGFuZCBhbg0KPj4+PiBPdXRwdXRJbmRleC4NCj4+Pj4NCj4+Pj4g VGhlIExGQiB1c2VzIGFsbCBleGlzdGluZyBtZXRhZGF0YSBhc3NvY2lhdGVkIHdpdGggZXZlcnkg aW5wdXQgcGFja2V0DQo+Pj4+IHdpdGggdGhlaXINCj4+Pj4gbWV0YWRhdGEgSURzIGFuZCBtZXRh ZGF0YSB2YWx1ZXMgYXMgdGhlIGNvbnRlbnQga2V5cyB0byBsb29rIHVwIHRoZSB0YWJsZQ0KPj4+ PiB0byBmaW5kIG91dCB0aGUgcmVsZXZhbnQgT3V0cHV0SW5kZXguDQo+Pj4+IElmIGEgcGFja2V0 IGZhaWxlZCBsb29rdXAgb2YgdGhlIHRhYmxlLCB0aGUgcGFja2V0IHdpbGwganVzdCBiZSBkcm9w cGVkDQo+Pj4+IGluc2lkZSB0aGUgTEZCLg0KPj4+Pg0KPj4+IE9rLCBub3cgaSByZWFsaXplIG15 IGNvbmZ1c2lvbiB3YXMgdGVjaG5pY2FsIG5vdCBlZGl0b3JpYWwuIEl0IHNlZW1zDQo+Pj4gc2Vu c2libGUgdGhhdA0KPj4+IHdlIHNob3VsZCBhdm9pZCBjb250ZW50IGtleXMgaWYgd2UgY2FuIGdl dCBhd2F5IHdpdGggaW5kZXhlZCB0YWJsZXMuIEkgYW0NCj4+PiBzb3JyeQ0KPj4+IGlmIGkgYW0g cmVoYXNoaW5nIHBhc3QgZGlzY3Vzc2lvbjogV2h5IHdhcyB0aGlzIG5vdCBhIHRhYmxlIGluc2lk ZSBhDQo+Pj4gdGFibGUgaW5kaXJlY3Rpb24/DQo+Pj4gRmlyc3QgeW91IHVzZSB0aGUgTWV0YWRh dGEgSUQgdG8gaW5kZXggaW50byB0YWJsZSAxIHRvIGZpbmQgdGhlIHRhYmxlIGZvcg0KPj4+IHRo YXQgTWV0YWRhdGEuIERyb3AgaWYgbm9uLWV4aXN0ZW50LiBOZXh0IHlvdSBsb29rdXAgdGhlIHNl Y29uZCB0YWJsZQ0KPj4+IHVzaW5nIHRoZSBtZXRhZGF0YSB2YWx1ZSB0byBmaW5kIHRoZSBPdXRw dXRJbmRleC4gRHJvcCBpZiBub24tZXhpc3RlbnQuDQo+Pg0K From chuanhuang_li@mail.zjgsu.edu.cn Fri Sep 2 06:58:02 2011 Return-Path: X-Original-To: forces@ietfa.amsl.com Delivered-To: forces@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id B872D21F8B30 for ; Fri, 2 Sep 2011 06:58:02 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -0.128 X-Spam-Level: X-Spam-Status: No, score=-0.128 tagged_above=-999 required=5 tests=[AWL=0.057, BAYES_40=-0.185] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id qImBh9XdXzVC for ; Fri, 2 Sep 2011 06:58:02 -0700 (PDT) Received: from mail.zjgsu.edu.cn (ucmail.zjgsu.edu.cn [124.160.64.1]) by ietfa.amsl.com (Postfix) with SMTP id 7606A21F8B2F for ; Fri, 2 Sep 2011 06:58:00 -0700 (PDT) Received: from RobinLee (unknown [10.20.0.167]) by mailportal (Coremail) with SMTP id rBCI85DrUTsP4GBOwM9qAA--.38519S2; Fri, 02 Sep 2011 21:54:24 +0800 (CST) Date: Fri, 2 Sep 2011 22:00:21 +0800 From: "Chuanhuang Li" To: "Joel M. Halpern" References: , <201109010919027653873@mail.zjgsu.edu.cn>, <201109011105325780938@mail.zjgsu.edu.cn>, <4E5EF6E8.4050903@stevecrocker.com>, <201109011511399686610@mail.zjgsu.edu.cn> Message-ID: <201109022200213598571@mail.zjgsu.edu.cn> Organization: Zhejiang Gongshang Univercity X-mailer: Foxmail 6, 15, 201, 23 [cn] Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-CM-TRANSID: rBCI85DrUTsP4GBOwM9qAA--.38519S2 X-Coremail-Antispam: 1Uf129KBjDUn29KB7ZKAUJUUUUUYxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJ3UbIYCTnIWIevJa73UjIFyTuYvj4RJUUUUUUUU X-CM-SenderInfo: pfkxt0xkxd0wxbolqzhdloh6pmjv3hxhgxhubq/ Cc: "forces@ietf.org" Subject: Re: [forces] comments on EtherClassifier output port X-BeenThere: forces@ietf.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: ForCES WG mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 02 Sep 2011 13:58:02 -0000 Hi, All As an conclusion, i list the port definiton of EtherClassifier. We add an output port named "ExceptionOut". Inputs: EtherPktsIn, single input frameExpected: Arbitrary metadataExpected: PHYPortID, LogicalPortID (optional, defaultValue:0) Outputs: ClassifyOut, group output frameProduced: Arbitrary metadataProduced: PHYPortID, EtherType, SrcMAC, DstMAC, LogicPortID, VlanID (availability="conditional"), VlanPriority (availability="conditional") ExceptionOut, single output frameProduced: Arbitrary metadataProduced: ExceptionID /*ExceptionID Type. o There are no mathing in classification. */ The text can be modified according this definition in Data handling section. Yours, Chuanhuang ======= 2011-09-01 22:00:09 Joel M. Halpern, wrote: ======= >I can live with treating it as an exception, and using ExceptionOut. >Yours, >Joel > >On 9/1/2011 3:11 AM, Chuanhuang Li wrote: >> Hi, All >> We need add an LFB port in EtherClassifier to output the packets >> which can't be classified. They can be processed in other LFB or >> redirected to CE. Joel agree with me on this suggest. >> His opinion, this LFB port can be named "noMatchingClassification". >> >> Joel, but I think, similar to other LFBs, it is best named "ExceptionOut". We >> can use ExceptionID to describe the packets' status, so CE can know >> how to process them. >> >> Yours, >> Chuanhuang >> >> >> From chuanhuang_li@mail.zjgsu.edu.cn Fri Sep 2 07:28:11 2011 Return-Path: X-Original-To: forces@ietfa.amsl.com Delivered-To: forces@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id DA9F721F8B06 for ; Fri, 2 Sep 2011 07:28:11 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.038 X-Spam-Level: X-Spam-Status: No, score=-1.038 tagged_above=-999 required=5 tests=[AWL=0.961, BAYES_00=-2.599, J_CHICKENPOX_47=0.6] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id g8bvM0JHHxlY for ; Fri, 2 Sep 2011 07:28:11 -0700 (PDT) Received: from mail.zjgsu.edu.cn (ucmail.zjgsu.edu.cn [124.160.64.1]) by ietfa.amsl.com (Postfix) with SMTP id B6B7521F8B05 for ; Fri, 2 Sep 2011 07:28:10 -0700 (PDT) Received: from RobinLee (unknown [10.20.0.167]) by mailportal (Coremail) with SMTP id rBCI85D7AH0g52BOwM9qAA--.38587S2; Fri, 02 Sep 2011 22:24:32 +0800 (CST) Date: Fri, 2 Sep 2011 22:30:29 +0800 From: "Chuanhuang Li" To: "Wang,Weiming" , "Jamal Hadi Salim" , "forces@ietf.org" References: Message-ID: <201109022230296716433@mail.zjgsu.edu.cn> Organization: Zhejiang Gongshang Univercity X-mailer: Foxmail 6, 15, 201, 23 [cn] Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-CM-TRANSID: rBCI85D7AH0g52BOwM9qAA--.38587S2 X-Coremail-Antispam: 1Uf129KBjDUn29KB7ZKAUJUUUUUYxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJ3UbIYCTnIWIevJa73UjIFyTuYvj4RJUUUUUUUU X-CM-SenderInfo: pfkxt0xkxd0wxbolqzhdloh6pmjv3hxhgxhubq/ Cc: "Joel M. Halpern" Subject: Re: [forces] comments #15 X-BeenThere: forces@ietf.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: ForCES WG mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 02 Sep 2011 14:28:12 -0000 Hi, Jamal If i have lost something, pls remind me, sorry. It seems we hadn't got an agreement on this issue. You just say "The VlanID type looks wrong." in the ee-suggested.txt. Do you mean the VlanID shouldn't be defined as "uint32", and should be defined to 12 bits? I think we use "uint32" is enough, and 12 bits type is difficult to define. Yours, Chuanhuang ======= 2011-09-01 21:34:43 Wang,Weiming, wrote: ======= >Chuanhuang, pls provide response. > >Weiming > >----- Original Message ----- >From: "Jamal Hadi Salim" > >>I brought this concern in version 4 of the draft and i got agreement >> to fix it. I am worried there are other things of the same nature. >> Please make sure you update everything we agree on so we dont have >> the same discussions again. >> VlanInputTableEntryType defines VLANID as 32bit. >> We need to typedef the VLANID appropriately. >> >> cheers, >> jamal >> From hadi@mojatatu.com Fri Sep 2 10:42:56 2011 Return-Path: X-Original-To: forces@ietfa.amsl.com Delivered-To: forces@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 412E421F8C3D for ; Fri, 2 Sep 2011 10:42:56 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -102.029 X-Spam-Level: X-Spam-Status: No, score=-102.029 tagged_above=-999 required=5 tests=[AWL=-0.252, BAYES_00=-2.599, FM_FORGED_GMAIL=0.622, J_CHICKENPOX_23=0.6, J_CHICKENPOX_47=0.6, RCVD_IN_DNSWL_LOW=-1, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id KoKD6p07iHr7 for ; Fri, 2 Sep 2011 10:42:55 -0700 (PDT) Received: from mail-fx0-f44.google.com (mail-fx0-f44.google.com [209.85.161.44]) by ietfa.amsl.com (Postfix) with ESMTP id 7716121F8C3A for ; Fri, 2 Sep 2011 10:42:55 -0700 (PDT) Received: by fxe6 with SMTP id 6so2004769fxe.31 for ; Fri, 02 Sep 2011 10:44:31 -0700 (PDT) Received: by 10.223.29.76 with SMTP id p12mr348815fac.51.1314985471099; Fri, 02 Sep 2011 10:44:31 -0700 (PDT) MIME-Version: 1.0 Received: by 10.223.126.193 with HTTP; Fri, 2 Sep 2011 10:44:11 -0700 (PDT) In-Reply-To: <201109020911078756756@mail.zjgsu.edu.cn> References: <4E5F91D3.9030400@joelhalpern.com> <201109020911078756756@mail.zjgsu.edu.cn> From: Jamal Hadi Salim Date: Fri, 2 Sep 2011 13:44:11 -0400 Message-ID: To: Chuanhuang Li Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Cc: "Joel M. Halpern" , forces Subject: Re: [forces] comments #14 X-BeenThere: forces@ietf.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: ForCES WG mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 02 Sep 2011 17:42:56 -0000 Chuanhuang, Based on what Joel said (the sparsity issue) - I am open to leaving it as i= t was as long as the text reflects the reasoning. I will leave it up to the authors to make that call. cheers, jamal On Thu, Sep 1, 2011 at 9:11 PM, Chuanhuang Li wrote: > Hi,All > > As an alternative, i think we can define MetadataDispatchTable by using t= able in table as Jamal said. > Pherhaps, this definition is more convinient. > name: MetadataDispatchTable > type: MetadataDispatchTableType > array of: > { > =A0 =A0MetadataID =A0/*the ID value of the metadata.*/ > =A0 =A0array of: > =A0 =A0{ > =A0 =A0 =A0 =A0MetadataValue, > =A0 =A0 =A0 =A0OutputIndex =A0 /*group output port index*/ > =A0 =A0 } > } > > First, We use the ID value of the metadata to lookup the table (Note, not= finding internal index, > but the MetadataID member in the entry.), and will get a sub-table. Drop = if non-existent. > Next we lookup the sub-table using the metadata value to > =A0find the OutputIndex. Drop if non-existent. > > Yours, > Chuanhuang > > =3D=3D=3D=3D=3D=3D=3D 2011-09-02 00:49:15 Jamal Hadi Salim, wrote: =3D=3D= =3D=3D=3D=3D=3D > >>Those are good reasons - and i will be happy if you kept the >>representation as is >>as long as you say something of whats below in the text. >> >>cheers, >>jamal >> >>On Thu, Sep 1, 2011 at 10:08 AM, Joel M. Halpern wr= ote: >>> I am probably missing a bit of context. >>> As a general rule, we do not use metadata IDs as table indices. =A0The = reason >>> is that they are allocated across all the uses of metdaa, so they are n= ot a >>> dense set. =A0Using them as an index produces a large, sparse, table. = =A0Not >>> particularly good. >>> >>> We can use the values of a metadatum as an index if that particular set= of >>> values is designed to be dense, and start from a very small number (0, = 1, or >>> so). =A0Some metadata are designed that way, some aren't. >>> >>> Yours, >>> Joel >>> >>> On 9/1/2011 9:33 AM, Wang,Weiming wrote: >>>> >>>> Fixed all except on the following point. >>>> Chuanhuang,pls double check the possibility to use a table in table he= re. >>>> >>>> thanks, >>>> Weiming >>>> ----- Original Message ----- >>>> From: "Jamal Hadi Salim" >>>>> >>>>> The table contains entires of a Metadata ID, a Metadata value =A0and = an >>>>> OutputIndex. >>>>> >>>>> The LFB uses all existing metadata associated with every input packet >>>>> with their >>>>> metadata IDs and metadata values as the content keys to look up the t= able >>>>> to find out the relevant OutputIndex. >>>>> If a packet failed lookup of the table, the packet will just be dropp= ed >>>>> inside the LFB. >>>>> >>>> Ok, now i realize my confusion was technical not editorial. It seems >>>> sensible that >>>> we should avoid content keys if we can get away with indexed tables. I= am >>>> sorry >>>> if i am rehashing past discussion: Why was this not a table inside a >>>> table indirection? >>>> First you use the Metadata ID to index into table 1 to find the table = for >>>> that Metadata. Drop if non-existent. Next you lookup the second table >>>> using the metadata value to find the OutputIndex. Drop if non-existent= . >>> > From hadi@mojatatu.com Fri Sep 2 10:47:58 2011 Return-Path: X-Original-To: forces@ietfa.amsl.com Delivered-To: forces@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id D2C0C21F8C15 for ; Fri, 2 Sep 2011 10:47:58 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -102.324 X-Spam-Level: X-Spam-Status: No, score=-102.324 tagged_above=-999 required=5 tests=[AWL=0.053, BAYES_00=-2.599, FM_FORGED_GMAIL=0.622, J_CHICKENPOX_47=0.6, RCVD_IN_DNSWL_LOW=-1, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id pEiXi5BE6K+Q for ; Fri, 2 Sep 2011 10:47:58 -0700 (PDT) Received: from mail-fx0-f44.google.com (mail-fx0-f44.google.com [209.85.161.44]) by ietfa.amsl.com (Postfix) with ESMTP id 4EB7221F8B9C for ; Fri, 2 Sep 2011 10:47:52 -0700 (PDT) Received: by fxe6 with SMTP id 6so2008680fxe.31 for ; Fri, 02 Sep 2011 10:49:28 -0700 (PDT) Received: by 10.223.54.206 with SMTP id r14mr2149477fag.13.1314985768098; Fri, 02 Sep 2011 10:49:28 -0700 (PDT) MIME-Version: 1.0 Received: by 10.223.126.193 with HTTP; Fri, 2 Sep 2011 10:49:08 -0700 (PDT) In-Reply-To: <201109022230296716433@mail.zjgsu.edu.cn> References: <201109022230296716433@mail.zjgsu.edu.cn> From: Jamal Hadi Salim Date: Fri, 2 Sep 2011 13:49:08 -0400 Message-ID: To: Chuanhuang Li Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Cc: "forces@ietf.org" , "Joel M. Halpern" Subject: Re: [forces] comments #15 X-BeenThere: forces@ietf.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: ForCES WG mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 02 Sep 2011 17:47:58 -0000 Chuanhuang, Yes, I meant the VlanID shouldn't be defined as "uint32". cheers, jamal On Fri, Sep 2, 2011 at 10:30 AM, Chuanhuang Li wrote: > Hi, Jamal > =A0 =A0If i have lost something, pls remind me, sorry. > It seems we hadn't got an agreement on this issue. You just say "The Vlan= ID type looks wrong." > in the ee-suggested.txt. > Do you mean the VlanID shouldn't be defined as "uint32", and should be de= fined to 12 bits? > I think we use "uint32" is enough, and 12 bits type is difficult to defin= e. > > Yours, > Chuanhuang > > =3D=3D=3D=3D=3D=3D=3D 2011-09-01 21:34:43 Wang,Weiming, wrote: =3D=3D=3D= =3D=3D=3D=3D > >>Chuanhuang, pls provide response. >> >>Weiming >> >>----- Original Message ----- >>From: "Jamal Hadi Salim" >> >>>I brought this concern in version 4 of the draft and i got agreement >>> to fix it. I am worried there are other things of the same nature. >>> Please make sure you update everything we agree on so we dont have >>> the same discussions again. >>> VlanInputTableEntryType defines VLANID as 32bit. >>> We need to typedef the VLANID appropriately. >>> >>> cheers, >>> jamal >>> > > > From hadi@mojatatu.com Fri Sep 2 12:30:07 2011 Return-Path: X-Original-To: forces@ietfa.amsl.com Delivered-To: forces@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id D3DB021F8CFC for ; Fri, 2 Sep 2011 12:30:07 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -102.325 X-Spam-Level: X-Spam-Status: No, score=-102.325 tagged_above=-999 required=5 tests=[AWL=0.052, BAYES_00=-2.599, FM_FORGED_GMAIL=0.622, J_CHICKENPOX_47=0.6, RCVD_IN_DNSWL_LOW=-1, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id nkWem3wjVwFC for ; Fri, 2 Sep 2011 12:30:07 -0700 (PDT) Received: from mail-fx0-f44.google.com (mail-fx0-f44.google.com [209.85.161.44]) by ietfa.amsl.com (Postfix) with ESMTP id 308AB21F8CF8 for ; Fri, 2 Sep 2011 12:30:07 -0700 (PDT) Received: by fxe6 with SMTP id 6so2093076fxe.31 for ; Fri, 02 Sep 2011 12:31:43 -0700 (PDT) Received: by 10.223.29.76 with SMTP id p12mr499974fac.51.1314991903169; Fri, 02 Sep 2011 12:31:43 -0700 (PDT) MIME-Version: 1.0 Received: by 10.223.126.193 with HTTP; Fri, 2 Sep 2011 12:31:23 -0700 (PDT) In-Reply-To: References: <201109022230296716433@mail.zjgsu.edu.cn> From: Jamal Hadi Salim Date: Fri, 2 Sep 2011 15:31:23 -0400 Message-ID: To: Chuanhuang Li Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Cc: "forces@ietf.org" , "Joel M. Halpern" Subject: Re: [forces] comments #15 X-BeenThere: forces@ietf.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: ForCES WG mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 02 Sep 2011 19:30:07 -0000 Chuanhuang, To be precise, something like this in the base types: vlanid The VLAN ID uint16 0 cheers, jamal On Fri, Sep 2, 2011 at 1:49 PM, Jamal Hadi Salim wrote: > Chuanhuang, > > Yes, I meant the VlanID shouldn't be defined as "uint32". > > cheers, > jamal > > On Fri, Sep 2, 2011 at 10:30 AM, Chuanhuang Li > wrote: >> Hi, Jamal >> =A0 =A0If i have lost something, pls remind me, sorry. >> It seems we hadn't got an agreement on this issue. You just say "The Vla= nID type looks wrong." >> in the ee-suggested.txt. >> Do you mean the VlanID shouldn't be defined as "uint32", and should be d= efined to 12 bits? >> I think we use "uint32" is enough, and 12 bits type is difficult to defi= ne. >> >> Yours, >> Chuanhuang >> >> =3D=3D=3D=3D=3D=3D=3D 2011-09-01 21:34:43 Wang,Weiming, wrote: =3D=3D=3D= =3D=3D=3D=3D >> >>>Chuanhuang, pls provide response. >>> >>>Weiming >>> >>>----- Original Message ----- >>>From: "Jamal Hadi Salim" >>> >>>>I brought this concern in version 4 of the draft and i got agreement >>>> to fix it. I am worried there are other things of the same nature. >>>> Please make sure you update everything we agree on so we dont have >>>> the same discussions again. >>>> VlanInputTableEntryType defines VLANID as 32bit. >>>> We need to typedef the VLANID appropriately. >>>> >>>> cheers, >>>> jamal >>>> >> >> >> > From chuanhuang_li@mail.zjgsu.edu.cn Fri Sep 2 17:59:35 2011 Return-Path: X-Original-To: forces@ietfa.amsl.com Delivered-To: forces@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id B46E021F8D15 for ; Fri, 2 Sep 2011 17:59:35 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -0.184 X-Spam-Level: X-Spam-Status: No, score=-0.184 tagged_above=-999 required=5 tests=[AWL=0.021, BAYES_00=-2.599, J_CHICKENPOX_47=0.6, MIME_BASE64_BLANKS=0.041, MIME_BASE64_TEXT=1.753] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id y-t9JZLcVLGF for ; Fri, 2 Sep 2011 17:59:35 -0700 (PDT) Received: from mail.zjgsu.edu.cn (ucmail.zjgsu.edu.cn [124.160.64.1]) by ietfa.amsl.com (Postfix) with SMTP id B0FA721F8D0A for ; Fri, 2 Sep 2011 17:59:34 -0700 (PDT) Received: from RobinLee (unknown [10.20.0.167]) by mailportal (Coremail) with SMTP id rBCI85CL1kIce2FOwM9qAA--.40194S2; Sat, 03 Sep 2011 08:55:56 +0800 (CST) Date: Sat, 3 Sep 2011 09:01:57 +0800 From: "Chuanhuang Li" To: "Jamal Hadi Salim" References: , <201109022230296716433@mail.zjgsu.edu.cn>, Message-ID: <201109030901570462919@mail.zjgsu.edu.cn> Organization: Zhejiang Gongshang Univercity X-mailer: Foxmail 6, 15, 201, 23 [cn] Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: base64 X-CM-TRANSID: rBCI85CL1kIce2FOwM9qAA--.40194S2 X-Coremail-Antispam: 1Uf129KBjDUn29KB7ZKAUJUUUUUYxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJ3UbIYCTnIWIevJa73UjIFyTuYvj4RJUUUUUUUU X-CM-SenderInfo: pfkxt0xkxd0wxbolqzhdloh6pmjv3hxhgxhubq/ Cc: "forces@ietf.org" , "Joel M. Halpern" Subject: Re: [forces] comments #15 X-BeenThere: forces@ietf.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: ForCES WG mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 03 Sep 2011 00:59:35 -0000 SGksSmFtYWwNCiAgIG9rLCBpdCBtYWtlcyBzZW5zZS4gV2UgY2FuIHVzZSCTYWxsb3dlZFJhbmdl lCB0YWcgdG8gDQpjb25zdHJhaW4gdGhlIHZhbHVlLiBJJ2xsIG1vZGlmeSB0aGUgZGVmaW5pdGlv biBpbiBYTUwuICBBdCB0aGUgc2FtZSB0aW1lLCANCnRoZSB0eXBlIG9mIFZMQU4gcHJpb3JpdHkg aXMgYWxzbyBtb2RpZmllZC4gVGhhbmtzIQ0KDQogICAgICA8ZGF0YVR5cGVEZWY+DQogICAgICAg ICA8bmFtZT5WbGFuSURUeXBlPC9uYW1lPg0KICAgICAgICAgPHN5bm9wc2lzPlRoZSB0eXBlIG9m IFZMQU4gSUQ8L3N5bm9wc2lzPg0KICAgICAgICAgPGF0b21pYz4NCiAgICAgICAgIDxiYXNlVHlw ZT51aW50MTY8L2Jhc2VUeXBlPg0KICAgICAgICAgICA8cmFuZ2VSZXN0cmljdGlvbj4NCiAgICAg ICAgICAgICAgPGFsbG93ZWRSYW5nZSBtaW49IjAiIG1heD0iNDA5NSIvPg0KICAgICAgICAgICAg PC9yYW5nZVJlc3RyaWN0aW9uPg0KICAgICAgICAgPC9hdG9taWM+DQogICAgICAgICA8ZGVmYXVs dFZhbHVlPjA8L2RlZmF1bHRWYWx1ZT4NCiAgICAgICA8L2RhdGFUeXBlRGVmPg0KICAgICAgIDxk YXRhVHlwZURlZj4NCiAgICAgICAgIDxuYW1lPlZsYW5Qcmlvcml0eVR5cGU8L25hbWU+DQogICAg ICAgICA8c3lub3BzaXM+VGhlIHR5cGUgb2YgVkxBTiBwcmlvcml0eS48L3N5bm9wc2lzPg0KICAg ICAgICAgPGF0b21pYz4NCiAgICAgICAgIDxiYXNlVHlwZT51aW50ODwvYmFzZVR5cGU+DQogICAg ICAgICAgIDxyYW5nZVJlc3RyaWN0aW9uPg0KICAgICAgICAgICAgICA8YWxsb3dlZFJhbmdlIG1p bj0iMCIgbWF4PSI3Ii8+DQogICAgICAgICAgICA8L3JhbmdlUmVzdHJpY3Rpb24+DQogICAgICAg ICA8ZGVmYXVsdFZhbHVlPjA8L2RlZmF1bHRWYWx1ZT4gICAgICAgICAgICANCiAgICAgICAgIDwv YXRvbWljPg0KICAgICAgPC9kYXRhVHlwZURlZj4gDQoNCllvdXJzLA0KQ2h1YW5odWFuZwkNCg0K DQoNCj09PT09PT0gMjAxMS0wOS0wMyAwMzozMDoyMyBKYW1hbCBIYWRpIFNhbGltLCB3cm90ZTog PT09PT09PQ0KDQo+Q2h1YW5odWFuZywNCj4NCj5UbyBiZSBwcmVjaXNlLCBzb21ldGhpbmcgbGlr ZSB0aGlzIGluIHRoZSBiYXNlIHR5cGVzOg0KPg0KPjxkYXRhVHlwZURlZj4NCj4gICAgIDxuYW1l PnZsYW5pZDwvbmFtZT4NCj4gICAgIDxzeW5vcHNpcz5UaGUgVkxBTiBJRDwvc3lub3BzaXM+DQo+ ICAgICA8YXRvbWljPg0KPiAgICAgIDxiYXNlVHlwZT51aW50MTY8L2Jhc2VUeXBlPg0KPiAgICAg IDxyYW5nZVJlc3RyaWN0aW9uPg0KPiAgICAgICA8YWxsb3dlZFJhbmdlIG1pbj0iMCIgbWF4PSI0 MDk1Ii8+DQo+ICAgICAgPC9yYW5nZVJlc3RyaWN0aW9uPg0KPiAgICAgPGRlZmF1bHRWYWx1ZT4w PC9kZWZhdWx0VmFsdWU+DQo+ICAgIDwvYXRvbWljPg0KPiAgIDwvZGF0YVR5cGVEZWY+DQo+DQo+ DQo+Y2hlZXJzLA0KPmphbWFsDQo+T24gRnJpLCBTZXAgMiwgMjAxMSBhdCAxOjQ5IFBNLCBKYW1h bCBIYWRpIFNhbGltIDxoYWRpQG1vamF0YXR1LmNvbT4gd3JvdGU6DQo+PiBDaHVhbmh1YW5nLA0K Pj4NCj4+IFllcywgSSBtZWFudCB0aGUgVmxhbklEIHNob3VsZG4ndCBiZSBkZWZpbmVkIGFzICJ1 aW50MzIiLg0KPj4NCj4+IGNoZWVycywNCj4+IGphbWFsDQo+Pg0KPj4gT24gRnJpLCBTZXAgMiwg MjAxMSBhdCAxMDozMCBBTSwgQ2h1YW5odWFuZyBMaQ0KPj4gPGNodWFuaHVhbmdfbGlAbWFpbC56 amdzdS5lZHUuY24+IHdyb3RlOg0KPj4+IEhpLCBKYW1hbA0KPj4+IKAgoElmIGkgaGF2ZSBsb3N0 IHNvbWV0aGluZywgcGxzIHJlbWluZCBtZSwgc29ycnkuDQo+Pj4gSXQgc2VlbXMgd2UgaGFkbid0 IGdvdCBhbiBhZ3JlZW1lbnQgb24gdGhpcyBpc3N1ZS4gWW91IGp1c3Qgc2F5ICJUaGUgVmxhbklE IHR5cGUgbG9va3Mgd3JvbmcuIg0KPj4+IGluIHRoZSBlZS1zdWdnZXN0ZWQudHh0Lg0KPj4+IERv IHlvdSBtZWFuIHRoZSBWbGFuSUQgc2hvdWxkbid0IGJlIGRlZmluZWQgYXMgInVpbnQzMiIsIGFu ZCBzaG91bGQgYmUgZGVmaW5lZCB0byAxMiBiaXRzPw0KPj4+IEkgdGhpbmsgd2UgdXNlICJ1aW50 MzIiIGlzIGVub3VnaCwgYW5kIDEyIGJpdHMgdHlwZSBpcyBkaWZmaWN1bHQgdG8gZGVmaW5lLg0K Pj4+DQo+Pj4gWW91cnMsDQo+Pj4gQ2h1YW5odWFuZw0KPj4+DQo+Pj4gPT09PT09PSAyMDExLTA5 LTAxIDIxOjM0OjQzIFdhbmcsV2VpbWluZywgd3JvdGU6ID09PT09PT0NCj4+Pg0KPj4+PkNodWFu aHVhbmcsIHBscyBwcm92aWRlIHJlc3BvbnNlLg0KPj4+Pg0KPj4+PldlaW1pbmcNCj4+Pj4NCj4+ Pj4tLS0tLSBPcmlnaW5hbCBNZXNzYWdlIC0tLS0tDQo+Pj4+RnJvbTogIkphbWFsIEhhZGkgU2Fs aW0iIDxoYWRpQG1vamF0YXR1LmNvbT4NCj4+Pj4NCj4+Pj4+SSBicm91Z2h0IHRoaXMgY29uY2Vy biBpbiB2ZXJzaW9uIDQgb2YgdGhlIGRyYWZ0IGFuZCBpIGdvdCBhZ3JlZW1lbnQNCj4+Pj4+IHRv IGZpeCBpdC4gSSBhbSB3b3JyaWVkIHRoZXJlIGFyZSBvdGhlciB0aGluZ3Mgb2YgdGhlIHNhbWUg bmF0dXJlLg0KPj4+Pj4gUGxlYXNlIG1ha2Ugc3VyZSB5b3UgdXBkYXRlIGV2ZXJ5dGhpbmcgd2Ug YWdyZWUgb24gc28gd2UgZG9udCBoYXZlDQo+Pj4+PiB0aGUgc2FtZSBkaXNjdXNzaW9ucyBhZ2Fp bi4NCj4+Pj4+IFZsYW5JbnB1dFRhYmxlRW50cnlUeXBlIGRlZmluZXMgVkxBTklEIGFzIDMyYml0 Lg0KPj4+Pj4gV2UgbmVlZCB0byB0eXBlZGVmIHRoZSBWTEFOSUQgYXBwcm9wcmlhdGVseS4NCj4+ Pj4+DQo+Pj4+PiBjaGVlcnMsDQo+Pj4+PiBqYW1hbA0KPj4+Pj4NCj4+Pg0KPj4+DQo+Pj4NCj4+ DQo= From wmwang2001@hotmail.com Thu Sep 15 21:22:35 2011 Return-Path: X-Original-To: forces@ietfa.amsl.com Delivered-To: forces@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 1BA3221F84AF for ; 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Thu, 15 Sep 2011 21:24:46 -0700 From: "Wang,Weiming" To: "Jamal Hadi Salim" , "Chuanhuang Li" References: <201108122255351563601@mail.zjgsu.edu.cn><201108171102177183945@mail.zjgsu.edu.cn><201108181015224373066@mail.zjgsu.edu.cn><201108221410402968991@mail.zjgsu.edu.cn> Date: Fri, 16 Sep 2011 12:24:43 +0800 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5931 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.6109 X-OriginalArrivalTime: 16 Sep 2011 04:24:46.0449 (UTC) FILETIME=[90D7FE10:01CC7428] Cc: forces , "Joel M. Halpern" Subject: Re: [forces] comments #6 X-BeenThere: forces@ietf.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: ForCES WG mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 16 Sep 2011 04:22:35 -0000 SSB0aGluayB0aGlzIGlzc3VlIG9uIHRoZSBhcnJheSBpbmRleCBvciB0aGUgYXJyYXkga2V5IGlz IG5vdCBjbG9zZWQsIHNvIEkgcHJvdmlkZSBtb3JlIGNvbW1lbnRzIGFsc28uDQoNClNvbWUgb2Yg bXkgdmlld3BvaW50czogDQoNCkZpcnN0bHksIHdlIG1heSBoYXZlIHRvIGRpc3Rpbmd1aXNoIHR3 byB0eXBlcyBvZiAnYXJyYXkgbG9va3VwcycuIA0KLiBvbmUgaXMgZm9yIENFIHRvIGxvb2sgdXAg dGhlIGFycmF5IHNvIHRoYXQgQ0UgY2FuIHF1ZXJ5IHRoZSBpbmZvcm1hdGlvbiBpbnNpZGUgdGhl IGFycmF5LiBJbiB0aGlzIGNhc2UsIHdlIGRlZmluZWQgdGhpbmdzICBsaWtlIGluZGV4IGFuZCBj b250ZW50IGtleXMgZm9yIHRoaXMgcHVycG9zZS4NCi4gdGhlIG90aGVyIGlzIGZvciB0aGUgZG9j dW1lbnQgdG8gdG8gZGVmaW5lIGhvdyB0aGUgYXJyYXkgaW4gdGhlIExGQiBhY3RzIHdoZW4gcHJv Y2Vzc2luZyBkYXRhLiBJbiB0aGlzIGNhc2UsIHdlIGNhbiBkZWZpbmUgdGhlIGFycnkgdXNlcyBp 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IGZvciBleGFtcGxlIGRvZXMgYSBnb29kIGpvYiB0byBkZXNjcmliZSB0aGF0DQpJUHY0QWRkcmVz cyBpcyB1c2VkIGFzIHRoZSBjb250ZW50IGtleSBmb3IgdGhlIElQdjRQcmVmaXhUYWJsZS4NCg0K aS5lIHRoZSBleHRyYSBkZXNjcmlwdGlvbiAgd291bGQgYmUgb2YgdGhlIGZvcm06DQoiVGFibGUg Rm9vOiBUYWJsZSBpbmRleCwgZ29vIG1ldGFkYXRhIg0KDQpEb2VzIHRoaXMgbWFrZSBzZW5zZT8N Cg0KT24gdGhlIGRpZmZlcmVuY2UgYmV0d2VlbiBrZXlzIGFuZCBpbmRpY2VzIGluIG91ciB0ZXJt aW5vbG9neToNCkEga2V5IGlzIGRlcml2ZWQgZnJvbSBjb250ZW50IGFuZCB0aGUgQ0UgaGFzIG5v IGNvbnRyb2wgb3ZlciBpdHMgdmFsdWUNCihJUFY0IGFkZHJlc3MNCm9uIGFycml2aW5nIHBhY2tl dCkuIFRhYmxlIGluZGV4IGlzIGNvbmZpZ3VyZWQgYnkgdGhlIENFLg0KSW5kZXggbG9va3VwIGlz IHR5cGljYWwgTygxKS4gQ29udGVudCBLZXkgbG9va3VwIGlzICBtdWNoIG1vcmUgZXhwZW5zaXZl Lg0KDQpjaGVlcnMsDQpqYW1hbA0KX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX18NCmZvcmNlcyBtYWlsaW5nIGxpc3QNCmZvcmNlc0BpZXRmLm9yZw0KaHR0cHM6 Ly93d3cuaWV0Zi5vcmcvbWFpbG1hbi9saXN0aW5mby9mb3JjZXM= From jmh@joelhalpern.com Fri Sep 16 06:47:47 2011 Return-Path: X-Original-To: forces@ietfa.amsl.com Delivered-To: forces@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 62AB621F8C32 for ; Fri, 16 Sep 2011 06:47:47 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -101.078 X-Spam-Level: X-Spam-Status: No, score=-101.078 tagged_above=-999 required=5 tests=[AWL=-1.479, BAYES_00=-2.599, J_CHICKENPOX_22=0.6, J_CHICKENPOX_25=0.6, J_CHICKENPOX_37=0.6, J_CHICKENPOX_47=0.6, J_CHICKENPOX_55=0.6, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id JlCKauAFJuhU for ; Fri, 16 Sep 2011 06:47:46 -0700 (PDT) Received: from hermes.out.tigertech.net (hermes-ipv6.tigertech.net [IPv6:2604:4f00::1:0:0:16]) by ietfa.amsl.com (Postfix) with ESMTP id D034821F8C2A for ; Fri, 16 Sep 2011 06:47:46 -0700 (PDT) Received: from localhost (localhost [127.0.0.1]) by hermes.tigertech.net (Postfix) with ESMTP id 8A7254300DF; Fri, 16 Sep 2011 06:50:01 -0700 (PDT) X-Virus-Scanned: Debian amavisd-new at hermes.tigertech.net Received: from [10.10.10.104] (pool-71-161-52-149.clppva.btas.verizon.net [71.161.52.149]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by hermes.tigertech.net (Postfix) with ESMTPSA id 11AC64300A4; Fri, 16 Sep 2011 06:49:59 -0700 (PDT) Message-ID: <4E735401.5010105@joelhalpern.com> Date: Fri, 16 Sep 2011 09:49:53 -0400 From: "Joel M. Halpern" User-Agent: Mozilla/5.0 (Windows NT 5.1; rv:6.0.2) Gecko/20110902 Thunderbird/6.0.2 MIME-Version: 1.0 To: "Wang,Weiming" References: <201108122255351563601@mail.zjgsu.edu.cn><201108171102177183945@mail.zjgsu.edu.cn><201108181015224373066@mail.zjgsu.edu.cn><201108221410402968991@mail.zjgsu.edu.cn> In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Cc: forces , Chuanhuang Li Subject: Re: [forces] comments #6 X-BeenThere: forces@ietf.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: ForCES WG mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 16 Sep 2011 13:47:47 -0000 Content keys are not for the CE to use when looking in its own copy of the tables. In those copies, it can do anything it wants any way it wants. Similarly, content keys are not for the FE to use for processing packet. The implementation of packet processing is a local matter. Even the case where a packet uses meta-data to select an entry, and uses a piece of content in the table for the matching, is not technically a content key, as it is not protocol processing. It is however a warning of a difficult design. It is also more likely to be a content key, because it makes sense for the CE to provide the information using the same keying the FE will use. And it is the CE-FE interaction that requires the declaration of content keying. Put differently: declaring content keys is all about a use case where the CE can not reasonably specify the array index in its request. Content keys are specifically for the case where the CE needs to specify an entry in the table to the FE, but needs to be able to specify that via the content, rather than via the index. Contents keys are included because the WG asked very strongly for them. It is not clear to me personally that they are necessary at all. Yours, Joel On 9/16/2011 12:24 AM, Wang,Weiming wrote: > I think this issue on the array index or the array key is not closed, so I provide more comments also. > > Some of my viewpoints: > > Firstly, we may have to distinguish two types of 'array lookups'. > . one is for CE to look up the array so that CE can query the information inside the array. In this case, we defined things like index and content keys for this purpose. > . the other is for the document to to define how the array in the LFB acts when processing data. In this case, we can define the arry uses index and any array fields as the lookup keys, while the lookup source data may be from metadata or other LFB components or component fields. In this case, we done have to define these joined lookup fields as 'content keys' in our XML files. Rather, we just need descriptions to clearly state it in the LFB description section. > > As a result, I think we now firstly need to make clear what have to be define as 'content keys' for CE to use. These content keys MUST be defined in XML files. > By now, I only see the necessary 'content key' for CE to look up is in the LPM table array. For other tables like the Vlaninputtable etc, we may dont have to define 'content key's for CE to use, because it is not a large table and if CE need to query, an index may be enough. > > Based on this, Chuanhuang, could you provide a clear list on what we should define as content keys for all LFBs defined? > > thanks, > Weiming > > ----- Original Message ----- > From: "Jamal Hadi Salim" > Subject: Re: [forces] comments #6 > > > Hi Chuanhuang, > > On Mon, Aug 22, 2011 at 2:10 AM, Chuanhuang Li > wrote: >> Hi,Jamal >> Sorry for the late response. >> I think we need reach an agreement on the meaning of "index". >> "table index" that i have said is just the internal order(entry index) for building the table in>an LFB. This "index" is not a member of the table structure. > > Indeed this is the index i was referring to, and as Joel said your understanding > is correct. It is not part of the row content rather it is a position > of where the > content is. > > 1) The CE knows such an index because it created it or it queried the FE > about it; and can coordinate upstream LFBs to have it as an entry in their > table content, example: LogicalPortID in upstream EtherDispatchTable > of EtherClassifier LFB. > > 2) LogicalPortID arrives as metadata at a downstream LFB where is > to be used to index/lookup some (downstream) table. > > I am concerned about #2. The text is highly lacking to describe what > metadata is used as an index for the table. > We need to say it clearly in the text for each table. > something like: "Metadata LogicalPortID is used as table index for table blah". > The text for example does a good job to describe that > IPv4Address is used as the content key for the IPv4PrefixTable. > > i.e the extra description would be of the form: > "Table Foo: Table index, goo metadata" > > Does this make sense? > > On the difference between keys and indices in our terminology: > A key is derived from content and the CE has no control over its value > (IPV4 address > on arriving packet). Table index is configured by the CE. > Index lookup is typical O(1). Content Key lookup is much more expensive. > > cheers, > jamal > _______________________________________________ > forces mailing list > forces@ietf.org > https://www.ietf.org/mailman/listinfo/forces From wmwang2001@hotmail.com Fri Sep 16 08:15:33 2011 Return-Path: X-Original-To: forces@ietfa.amsl.com Delivered-To: forces@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 9B14D21F8CC4 for ; Fri, 16 Sep 2011 08:15:33 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: 2.059 X-Spam-Level: ** X-Spam-Status: No, score=2.059 tagged_above=-999 required=5 tests=[AWL=-0.201, BAYES_20=-0.74, J_CHICKENPOX_22=0.6, J_CHICKENPOX_25=0.6, J_CHICKENPOX_37=0.6, J_CHICKENPOX_47=0.6, J_CHICKENPOX_55=0.6] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id uP-4kEOuCy+4 for ; Fri, 16 Sep 2011 08:15:33 -0700 (PDT) Received: from blu0-omc2-s22.blu0.hotmail.com (blu0-omc2-s22.blu0.hotmail.com [65.55.111.97]) by ietfa.amsl.com (Postfix) with ESMTP id BB2BC21F8C5C for ; Fri, 16 Sep 2011 08:15:32 -0700 (PDT) Received: from BLU0-SMTP211 ([65.55.111.72]) by blu0-omc2-s22.blu0.hotmail.com with Microsoft SMTPSVC(6.0.3790.4675); Fri, 16 Sep 2011 08:17:47 -0700 X-Originating-IP: [60.186.201.103] X-Originating-Email: [wmwang2001@hotmail.com] Message-ID: Received: from WmwangHome ([60.186.201.103]) by BLU0-SMTP211.phx.gbl over TLS secured channel with Microsoft SMTPSVC(6.0.3790.4675); Fri, 16 Sep 2011 08:17:44 -0700 From: "Wang,Weiming" To: "Joel M. Halpern" References: <201108122255351563601@mail.zjgsu.edu.cn><201108171102177183945@mail.zjgsu.edu.cn><201108181015224373066@mail.zjgsu.edu.cn><201108221410402968991@mail.zjgsu.edu.cn> <4E735401.5010105@joelhalpern.com> Date: Fri, 16 Sep 2011 23:17:38 +0800 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5931 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.6109 X-OriginalArrivalTime: 16 Sep 2011 15:17:45.0580 (UTC) FILETIME=[C96CF2C0:01CC7483] Cc: forces , Chuanhuang Li Subject: Re: [forces] comments #6 X-BeenThere: forces@ietf.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: ForCES WG mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 16 Sep 2011 15:15:33 -0000 Sm9lbCwgDQoNCkkgdGhpbmsgSSdtIG9uIHRoZSBzYW1lIHBhZ2Ugd2l0aCB5b3VyIGlkZWFzLiBJ 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jmh@joelhalpern.com Fri Sep 16 08:31:36 2011 Return-Path: X-Original-To: forces@ietfa.amsl.com Delivered-To: forces@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id EB02F21F85A4 for ; Fri, 16 Sep 2011 08:31:36 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -101.062 X-Spam-Level: X-Spam-Status: No, score=-101.062 tagged_above=-999 required=5 tests=[AWL=-1.463, BAYES_00=-2.599, J_CHICKENPOX_22=0.6, J_CHICKENPOX_25=0.6, J_CHICKENPOX_37=0.6, J_CHICKENPOX_47=0.6, J_CHICKENPOX_55=0.6, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 4dbBgkjyUhQS for ; Fri, 16 Sep 2011 08:31:36 -0700 (PDT) Received: from hermes.out.tigertech.net (hermes-ipv6.tigertech.net [IPv6:2604:4f00::1:0:0:16]) by ietfa.amsl.com (Postfix) with ESMTP id 5334E21F8591 for ; Fri, 16 Sep 2011 08:31:36 -0700 (PDT) Received: from localhost (localhost [127.0.0.1]) by hermes.tigertech.net (Postfix) with ESMTP id 696FB4300EF; Fri, 16 Sep 2011 08:33:51 -0700 (PDT) X-Virus-Scanned: Debian amavisd-new at hermes.tigertech.net Received: from [10.10.10.104] (pool-71-161-52-176.clppva.btas.verizon.net [71.161.52.176]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by hermes.tigertech.net (Postfix) with ESMTPSA id 2144E4300EC; Fri, 16 Sep 2011 08:33:50 -0700 (PDT) Message-ID: <4E736C57.2080607@joelhalpern.com> Date: Fri, 16 Sep 2011 11:33:43 -0400 From: "Joel M. Halpern" User-Agent: Mozilla/5.0 (Windows NT 5.1; rv:6.0.2) Gecko/20110902 Thunderbird/6.0.2 MIME-Version: 1.0 To: "Wang,Weiming" References: <201108122255351563601@mail.zjgsu.edu.cn><201108171102177183945@mail.zjgsu.edu.cn><201108181015224373066@mail.zjgsu.edu.cn><201108221410402968991@mail.zjgsu.edu.cn> <4E735401.5010105@joelhalpern.com> In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Cc: forces , Chuanhuang Li Subject: Re: [forces] comments #6 X-BeenThere: forces@ietf.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: ForCES WG mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 16 Sep 2011 15:31:37 -0000 Thanks. It sounds like we are on the same page. Joel On 9/16/2011 11:17 AM, Wang,Weiming wrote: > Joel, > > I think I'm on the same page with your ideas. I don't mean that CE will use the content key to look up, for instance, a copy of routing table in CE. Rather, CE may have to use a content key to query a routing table in FE for some specific information. > > When years ago we asked for a content key based arry lookup, we just thought only index based array lookup may not be sufficient enough. The key useage may be like, we may define a LPM table with a IP address as the content key. Then, we may be able to operate on (query/delete, etc) routing items with a specific IP address. > > Content keys may be hard for some implementations, so I jsut wound if we need to define an extra capability for content keys the LFB supported. Of course, with ForCES protocol, if a content key is not supported by an LFB while CE still use it, an error code indicating such errors may be retured to CE. > > thanks, > Weiming > > ----- Original Message ----- > From: "Joel M. Halpern" > Subject: Re: [forces] comments #6 > > >> Content keys are not for the CE to use when looking in its own copy of >> the tables. In those copies, it can do anything it wants any way it wants. >> Similarly, content keys are not for the FE to use for processing packet. >> The implementation of packet processing is a local matter. >> Even the case where a packet uses meta-data to select an entry, and uses >> a piece of content in the table for the matching, is not technically a >> content key, as it is not protocol processing. >> It is however a warning of a difficult design. It is also more likely >> to be a content key, because it makes sense for the CE to provide the >> information using the same keying the FE will use. And it is the CE-FE >> interaction that requires the declaration of content keying. >> >> Put differently: declaring content keys is all about a use case where >> the CE can not reasonably specify the array index in its request. >> >> Content keys are specifically for the case where the CE needs to specify >> an entry in the table to the FE, but needs to be able to specify that >> via the content, rather than via the index. >> Contents keys are included because the WG asked very strongly for them. >> It is not clear to me personally that they are necessary at all. >> >> Yours, >> Joel >> >> On 9/16/2011 12:24 AM, Wang,Weiming wrote: >>> I think this issue on the array index or the array key is not closed, so I provide more comments also. >>> >>> Some of my viewpoints: >>> >>> Firstly, we may have to distinguish two types of 'array lookups'. >>> . one is for CE to look up the array so that CE can query the information inside the array. In this case, we defined things like index and content keys for this purpose. >>> . the other is for the document to to define how the array in the LFB acts when processing data. In this case, we can define the arry uses index and any array fields as the lookup keys, while the lookup source data may be from metadata or other LFB components or component fields. In this case, we done have to define these joined lookup fields as 'content keys' in our XML files. Rather, we just need descriptions to clearly state it in the LFB description section. >>> >>> As a result, I think we now firstly need to make clear what have to be define as 'content keys' for CE to use. These content keys MUST be defined in XML files. >>> By now, I only see the necessary 'content key' for CE to look up is in the LPM table array. For other tables like the Vlaninputtable etc, we may dont have to define 'content key's for CE to use, because it is not a large table and if CE need to query, an index may be enough. >>> >>> Based on this, Chuanhuang, could you provide a clear list on what we should define as content keys for all LFBs defined? >>> >>> thanks, >>> Weiming >>> >>> ----- Original Message ----- >>> From: "Jamal Hadi Salim" >>> Subject: Re: [forces] comments #6 >>> >>> >>> Hi Chuanhuang, >>> >>> On Mon, Aug 22, 2011 at 2:10 AM, Chuanhuang Li >>> wrote: >>>> Hi,Jamal >>>> Sorry for the late response. >>>> I think we need reach an agreement on the meaning of "index". >>>> "table index" that i have said is just the internal order(entry index) for building the table in>an LFB. This "index" is not a member of the table structure. >>> >>> Indeed this is the index i was referring to, and as Joel said your understanding >>> is correct. It is not part of the row content rather it is a position >>> of where the >>> content is. >>> >>> 1) The CE knows such an index because it created it or it queried the FE >>> about it; and can coordinate upstream LFBs to have it as an entry in their >>> table content, example: LogicalPortID in upstream EtherDispatchTable >>> of EtherClassifier LFB. >>> >>> 2) LogicalPortID arrives as metadata at a downstream LFB where is >>> to be used to index/lookup some (downstream) table. >>> >>> I am concerned about #2. The text is highly lacking to describe what >>> metadata is used as an index for the table. >>> We need to say it clearly in the text for each table. >>> something like: "Metadata LogicalPortID is used as table index for table blah". >>> The text for example does a good job to describe that >>> IPv4Address is used as the content key for the IPv4PrefixTable. >>> >>> i.e the extra description would be of the form: >>> "Table Foo: Table index, goo metadata" >>> >>> Does this make sense? >>> >>> On the difference between keys and indices in our terminology: >>> A key is derived from content and the CE has no control over its value >>> (IPV4 address >>> on arriving packet). Table index is configured by the CE. >>> Index lookup is typical O(1). Content Key lookup is much more expensive. >>> >>> cheers, >>> jamal >>> _______________________________________________ >>> forces mailing list >>> forces@ietf.org >>> https://www.ietf.org/mailman/listinfo/forces >> From wmwang2001@hotmail.com Sat Sep 17 01:51:15 2011 Return-Path: X-Original-To: forces@ietfa.amsl.com Delivered-To: forces@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 73A8321F8B04 for ; Sat, 17 Sep 2011 01:51:15 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: 1.144 X-Spam-Level: * X-Spam-Status: No, score=1.144 tagged_above=-999 required=5 tests=[AWL=0.743, BAYES_00=-2.599, J_CHICKENPOX_22=0.6, J_CHICKENPOX_25=0.6, J_CHICKENPOX_37=0.6, J_CHICKENPOX_47=0.6, J_CHICKENPOX_55=0.6] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id GmqLXoZ6fifO for ; Sat, 17 Sep 2011 01:51:14 -0700 (PDT) Received: from blu0-omc2-s12.blu0.hotmail.com (blu0-omc2-s12.blu0.hotmail.com [65.55.111.87]) by ietfa.amsl.com (Postfix) with ESMTP id 86CBA21F8922 for ; Sat, 17 Sep 2011 01:51:14 -0700 (PDT) Received: from BLU0-SMTP404 ([65.55.111.71]) by blu0-omc2-s12.blu0.hotmail.com with Microsoft SMTPSVC(6.0.3790.4675); Sat, 17 Sep 2011 01:53:31 -0700 X-Originating-IP: [60.186.201.103] X-Originating-Email: [wmwang2001@hotmail.com] Message-ID: Received: from WmwangHome ([60.186.201.103]) by BLU0-SMTP404.phx.gbl over TLS secured channel with Microsoft SMTPSVC(6.0.3790.4675); Sat, 17 Sep 2011 01:53:29 -0700 From: "Wang,Weiming" To: "Joel M. Halpern" References: <201108122255351563601@mail.zjgsu.edu.cn><201108171102177183945@mail.zjgsu.edu.cn><201108181015224373066@mail.zjgsu.edu.cn><201108221410402968991@mail.zjgsu.edu.cn> <4E735401.5010105@joelhalpern.com> <4E736C57.2080607@joelhalpern.com> Date: Sat, 17 Sep 2011 16:53:26 +0800 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: base64 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5931 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.6109 X-OriginalArrivalTime: 17 Sep 2011 08:53:29.0546 (UTC) FILETIME=[455F1AA0:01CC7517] Cc: forces , Chuanhuang Li Subject: Re: [forces] comments #6 X-BeenThere: forces@ietf.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: ForCES WG mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 17 Sep 2011 08:51:15 -0000 Q2h1YW5odWFuZyBhbmQgSmFtYWwsIA0KDQpBY2NvcmRpbmcgdG8gdGhlIGRpc2N1c3Npb24sIEkg 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J_CHICKENPOX_37=0.6, J_CHICKENPOX_47=0.6, J_CHICKENPOX_55=0.6, MIME_BASE64_TEXT=1.753] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id EDjUzriYmCWo for ; Sat, 17 Sep 2011 02:04:00 -0700 (PDT) Received: from blu0-omc2-s37.blu0.hotmail.com (blu0-omc2-s37.blu0.hotmail.com [65.55.111.112]) by ietfa.amsl.com (Postfix) with ESMTP id 72E0321F8B1A for ; Sat, 17 Sep 2011 02:04:00 -0700 (PDT) Received: from BLU0-SMTP409 ([65.55.111.71]) by blu0-omc2-s37.blu0.hotmail.com with Microsoft SMTPSVC(6.0.3790.4675); Sat, 17 Sep 2011 02:06:17 -0700 X-Originating-IP: [60.186.201.103] X-Originating-Email: [wmwang2001@hotmail.com] Message-ID: Received: from WmwangHome ([60.186.201.103]) by BLU0-SMTP409.phx.gbl over TLS secured channel with Microsoft SMTPSVC(6.0.3790.4675); Sat, 17 Sep 2011 02:06:15 -0700 From: "Wang,Weiming" To: "Wang,Weiming" , "Joel M. Halpern" References: <201108122255351563601@mail.zjgsu.edu.cn><201108171102177183945@mail.zjgsu.edu.cn><201108181015224373066@mail.zjgsu.edu.cn><201108221410402968991@mail.zjgsu.edu.cn><4E735401.5010105@joelhalpern.com><4E736C57.2080607@joelhalpern.com> Date: Sat, 17 Sep 2011 17:06:13 +0800 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: base64 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5931 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.6109 X-OriginalArrivalTime: 17 Sep 2011 09:06:15.0689 (UTC) FILETIME=[0E073F90:01CC7519] Cc: forces , Chuanhuang Li Subject: Re: [forces] comments #6 X-BeenThere: forces@ietf.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: ForCES WG mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 17 Sep 2011 09:04:01 -0000 SW4gb3JkZXIgdG8gYXZvaWQgY29uZnVzaW9ucywgSSdtIGdvaW5nIHRvIGNoYW5nZSB0aGUgbmFt 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X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fDQo+IGZvcmNlcyBtYWlsaW5n IGxpc3QNCj4gZm9yY2VzQGlldGYub3JnDQo+IGh0dHBzOi8vd3d3LmlldGYub3JnL21haWxtYW4v bGlzdGluZm8vZm9yY2VzDQo+ From chuanhuang_li@mail.zjgsu.edu.cn Sat Sep 17 02:22:46 2011 Return-Path: X-Original-To: forces@ietfa.amsl.com Delivered-To: forces@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 8A68321F88A0 for ; Sat, 17 Sep 2011 02:22:46 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: 1.222 X-Spam-Level: * X-Spam-Status: No, score=1.222 tagged_above=-999 required=5 tests=[AWL=-1.387, BAYES_00=-2.599, FROM_EXCESS_BASE64=1.456, J_CHICKENPOX_22=0.6, J_CHICKENPOX_25=0.6, J_CHICKENPOX_37=0.6, J_CHICKENPOX_38=0.6, J_CHICKENPOX_47=0.6, J_CHICKENPOX_55=0.6, SARE_SUB_ENC_UTF8=0.152] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id oU0gubZkp8B9 for ; Sat, 17 Sep 2011 02:22:45 -0700 (PDT) Received: from mail.zjgsu.edu.cn (ucmail.zjgsu.edu.cn [124.160.64.1]) by ietfa.amsl.com (Postfix) with SMTP id D8A4B21F889A for ; Sat, 17 Sep 2011 02:22:44 -0700 (PDT) Received: from RobinLee (unknown [10.20.0.167]) by mailportal (Coremail) with SMTP id rBCI85CbAkfcZXROABJ6AA--.22845S2; Sat, 17 Sep 2011 17:18:21 +0800 (CST) Date: Sat, 17 Sep 2011 17:23:14 +0800 From: "=?utf-8?B?Q2h1YW5odWFuZyBMaQ==?=" To: "=?utf-8?B?V2FuZyxXZWltaW5n?=" , "=?utf-8?B?Sm9lbCBNLiBIYWxwZXJu?=" References: <201108122255351563601@mail.zjgsu.edu.cn><201108171102177183945@mail.zjgsu.edu.cn><201108181015224373066@mail.zjgsu.edu.cn><201108221410402968991@mail.zjgsu.edu.cn>, , , <4E735401.5010105@joelhalpern.com>, , <4E736C57.2080607@joelhalpern.com> Message-ID: <201109171723138243355@mail.zjgsu.edu.cn> Organization: =?utf-8?B?WmhlamlhbmcgR29uZ3NoYW5nIFVuaXZlcmNpdHk=?= X-mailer: Foxmail 6, 15, 201, 23 [cn] Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-CM-TRANSID: rBCI85CbAkfcZXROABJ6AA--.22845S2 X-Coremail-Antispam: 1Uf129KBjDUn29KB7ZKAUJUUUUUYxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJ3UbIYCTnIWIevJa73UjIFyTuYvj4RJUUUUUUUU X-CM-SenderInfo: pfkxt0xkxd0wxbolqzhdloh6pmjv3hxhgxhubq/ Cc: =?utf-8?B?Zm9yY2Vz?= Subject: [forces] =?utf-8?q?=5BSPAM=5D_Re=3A__comments_=236?= X-BeenThere: forces@ietf.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: ForCES WG mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 17 Sep 2011 09:22:46 -0000 Hi, All Exactly, I don't think we need define content key in the table components of IPv4UcastLPM and IPv6UcastLPM. The reason is these tables are all generated on CE itself, and CE needn't lookup them from FE. CurrentQueueDepth in GenericScheduler LFB is generated on FE, so we need define the content key to facilitate CE to lookup the content. If user implements the LFB with content key, he should provide the searching function to CE. In case user haven't implement the function, i think FE may return "E_UNSPECIFIED_ERROR" error code. Chuanhuang ======= 2011-09-17 16:51:32 Wang,Weiming, wrote: ======= >Chuanhuang and Jamal, > >According to the discussion, I think only the following content keys should be defined in XML. Pls double check it: > >IPv4UcastLPM: > IPv4PrefixTable, content Key: IPv4Address. > >IPv6UcastLPM: > IPv6PrefixTable, content Key: IPv6Address. > >GenericScheduler: > CurrentQueueDepth, content Key: QueueID.( not sure if it is a must? Because the queue number is not so large, so if there is no such key, CE may still be able to get queue depth info by query the whole depth table ) > >By defining above content keys, we may also have to consider how the LFB will respond to CE if it can not support the content key. > >thanks, >Weiming > >----- Original Message ----- >From: "Joel M. Halpern" >Subject: Re: [forces] comments #6 > > >> Thanks. It sounds like we are on the same page. >> Joel >> >> On 9/16/2011 11:17 AM, Wang,Weiming wrote: >>> Joel, >>> >>> I think I'm on the same page with your ideas. I don't mean that CE will use the content key to look up, for instance, a copy of routing table in CE. Rather, CE may have to use a content key to query a routing table in FE for some specific information. >>> >>> When years ago we asked for a content key based arry lookup, we just thought only index based array lookup may not be sufficient enough. The key useage may be like, we may define a LPM table with a IP address as the content key. Then, we may be able to operate on (query/delete, etc) routing items with a specific IP address. >>> >>> Content keys may be hard for some implementations, so I jsut wound if we need to define an extra capability for content keys the LFB supported. Of course, with ForCES protocol, if a content key is not supported by an LFB while CE still use it, an error code indicating such errors may be retured to CE. >>> >>> thanks, >>> Weiming >>> >>> ----- Original Message ----- >>> From: "Joel M. Halpern" >>> Subject: Re: [forces] comments #6 >>> >>> >>>> Content keys are not for the CE to use when looking in its own copy of >>>> the tables. In those copies, it can do anything it wants any way it wants. >>>> Similarly, content keys are not for the FE to use for processing packet. >>>> The implementation of packet processing is a local matter. >>>> Even the case where a packet uses meta-data to select an entry, and uses >>>> a piece of content in the table for the matching, is not technically a >>>> content key, as it is not protocol processing. >>>> It is however a warning of a difficult design. It is also more likely >>>> to be a content key, because it makes sense for the CE to provide the >>>> information using the same keying the FE will use. And it is the CE-FE >>>> interaction that requires the declaration of content keying. >>>> >>>> Put differently: declaring content keys is all about a use case where >>>> the CE can not reasonably specify the array index in its request. >>>> >>>> Content keys are specifically for the case where the CE needs to specify >>>> an entry in the table to the FE, but needs to be able to specify that >>>> via the content, rather than via the index. >>>> Contents keys are included because the WG asked very strongly for them. >>>> It is not clear to me personally that they are necessary at all. >>>> >>>> Yours, >>>> Joel >>>> >>>> On 9/16/2011 12:24 AM, Wang,Weiming wrote: >>>>> I think this issue on the array index or the array key is not closed, so I provide more comments also. >>>>> >>>>> Some of my viewpoints: >>>>> >>>>> Firstly, we may have to distinguish two types of 'array lookups'. >>>>> . one is for CE to look up the array so that CE can query the information inside the array. In this case, we defined things like index and content keys for this purpose. >>>>> . the other is for the document to to define how the array in the LFB acts when processing data. In this case, we can define the arry uses index and any array fields as the lookup keys, while the lookup source data may be from metadata or other LFB components or component fields. In this case, we done have to define these joined lookup fields as 'content keys' in our XML files. Rather, we just need descriptions to clearly state it in the LFB description section. >>>>> >>>>> As a result, I think we now firstly need to make clear what have to be define as 'content keys' for CE to use. These content keys MUST be defined in XML files. >>>>> By now, I only see the necessary 'content key' for CE to look up is in the LPM table array. For other tables like the Vlaninputtable etc, we may dont have to define 'content key's for CE to use, because it is not a large table and if CE need to query, an index may be enough. >>>>> >>>>> Based on this, Chuanhuang, could you provide a clear list on what we should define as content keys for all LFBs defined? >>>>> >>>>> thanks, >>>>> Weiming >>>>> >>>>> ----- Original Message ----- >>>>> From: "Jamal Hadi Salim" >>>>> Subject: Re: [forces] comments #6 >>>>> >>>>> >>>>> Hi Chuanhuang, >>>>> >>>>> On Mon, Aug 22, 2011 at 2:10 AM, Chuanhuang Li >>>>> wrote: >>>>>> Hi,Jamal >>>>>> Sorry for the late response. >>>>>> I think we need reach an agreement on the meaning of "index". >>>>>> "table index" that i have said is just the internal order(entry index) for building the table in>an LFB. This "index" is not a member of the table structure. >>>>> >>>>> Indeed this is the index i was referring to, and as Joel said your understanding >>>>> is correct. It is not part of the row content rather it is a position >>>>> of where the >>>>> content is. >>>>> >>>>> 1) The CE knows such an index because it created it or it queried the FE >>>>> about it; and can coordinate upstream LFBs to have it as an entry in their >>>>> table content, example: LogicalPortID in upstream EtherDispatchTable >>>>> of EtherClassifier LFB. >>>>> >>>>> 2) LogicalPortID arrives as metadata at a downstream LFB where is >>>>> to be used to index/lookup some (downstream) table. >>>>> >>>>> I am concerned about #2. The text is highly lacking to describe what >>>>> metadata is used as an index for the table. >>>>> We need to say it clearly in the text for each table. >>>>> something like: "Metadata LogicalPortID is used as table index for table blah". >>>>> The text for example does a good job to describe that >>>>> IPv4Address is used as the content key for the IPv4PrefixTable. >>>>> >>>>> i.e the extra description would be of the form: >>>>> "Table Foo: Table index, goo metadata" >>>>> >>>>> Does this make sense? >>>>> >>>>> On the difference between keys and indices in our terminology: >>>>> A key is derived from content and the CE has no control over its value >>>>> (IPV4 address >>>>> on arriving packet). Table index is configured by the CE. >>>>> Index lookup is typical O(1). Content Key lookup is much more expensive. >>>>> >>>>> cheers, >>>>> jamal >>>>> _______________________________________________ >>>>> forces mailing list >>>>> forces@ietf.org >>>>> https://www.ietf.org/mailman/listinfo/forces >>>> >> From wmwang2001@hotmail.com Sat Sep 17 06:01:58 2011 Return-Path: X-Original-To: forces@ietfa.amsl.com Delivered-To: forces@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 1E4C421F8A95 for ; Sat, 17 Sep 2011 06:01:58 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: 1.252 X-Spam-Level: * X-Spam-Status: No, score=1.252 tagged_above=-999 required=5 tests=[AWL=0.651, BAYES_50=0.001, J_CHICKENPOX_47=0.6] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id BEL8I6dOpI4f for ; Sat, 17 Sep 2011 06:01:57 -0700 (PDT) Received: from blu0-omc2-s10.blu0.hotmail.com (blu0-omc2-s10.blu0.hotmail.com [65.55.111.85]) by ietfa.amsl.com (Postfix) with ESMTP id 5DE1621F848F for ; Sat, 17 Sep 2011 06:01:57 -0700 (PDT) Received: from BLU0-SMTP223 ([65.55.111.73]) by blu0-omc2-s10.blu0.hotmail.com with Microsoft SMTPSVC(6.0.3790.4675); Sat, 17 Sep 2011 06:04:10 -0700 X-Originating-IP: [60.186.201.103] X-Originating-Email: [wmwang2001@hotmail.com] Message-ID: Received: from WmwangHome ([60.186.201.103]) by BLU0-SMTP223.phx.gbl over TLS secured channel with Microsoft SMTPSVC(6.0.3790.4675); Sat, 17 Sep 2011 06:04:08 -0700 From: "Wang,Weiming" To: "Jamal Hadi Salim" , "Chuanhuang Li" References: <201108122321083750056@mail.zjgsu.edu.cn> <201108142323102342242@mail.zjgsu.edu.cn> <201108171557165004825@mail.zjgsu.edu.cn> Date: Sat, 17 Sep 2011 21:04:06 +0800 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5931 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.6109 X-OriginalArrivalTime: 17 Sep 2011 13:04:09.0322 (UTC) FILETIME=[49C6CCA0:01CC753A] Cc: forces , "Joel M. Halpern" Subject: Re: [forces] comments #7 X-BeenThere: forces@ietf.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: ForCES WG mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 17 Sep 2011 13:01:58 -0000 UmVnYXJkaW5nIHRoaXMgaXNzdWUsIEkndiBjaGFuZ2VkIHNvbWUgb2YgdGhlIHRleHRzIGFzIGJl bG93Og0KDQppbiBTZWN0aW9uIDUuMS4zLjENCi0tLS1mcm9tIC0tLQ0KTWV0YWRhdGEgdG8gYmUg Y2FycmllZCBhbG9uZyB3aXRoIHRoZSBwYWNrZXQgZGF0YSBpcyBwcm9kdWNlZCBhdCB0aGlzIExG QiBmb3IgY29uc3VtcHRpb24gYnkgZG93bnN0cmVhbSBMRkJzLiBUaGUgbWV0YWRhdGEgcGFzc2Vk IGRvd25zdHJlYW0gaW5jbHVkZXMgUEhZUG9ydElELCBhcyB3ZWxsIGFzIGluZm9ybWF0aW9uIG9u IEV0aGVybmV0IHR5cGUsIHNvdXJjZSBNQUMgYWRkcmVzcywgZGVzdGluYXRpb24gTUFDIGFkZHJl c3MgYW5kIHRoZSBsb2dpY2FsIHBvcnQgSUQuIElmIHRoZSBvcmlnaW5hbCBwYWNrZXQgaGFkIGEg VkxBTiBJRCB0aGVuIHRoYXQgaXMgYWxzbyBjYXJyaWVkIGRvd25zdHJlYW0gYXMgbWV0YWRhdGEg KG90aGVyd2lzZSBhIFZMQU4gSUQgb2YgMCBpcyBhc3N1bWVkKS4gDQoNCi0tLSB0byAtLS0NCk1l 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dGhpcyAtIG15IHRha2Ugb24gaXQgaXM6DQo+PmZ1bmN0aW9uYWxseSBhc3N1bWluZyBwcmVzZW5j ZSBvZiBib3RoIHRhZyBhbmQgcHJpb3JpdHkgaXMgZWFzaWVyIHRvIGZvbGxvdy4NCj4+U29tZXRp bWVzIG9uZSBvciBib3RoIGNvdWxkIGJlIHplcm8uDQo+Pg0KPj5jaGVlcnMsDQo+PmphbWFsDQo+ DQo+DQo+DQo= From chuanhuang_li@mail.zjgsu.edu.cn Sat Sep 17 07:26:29 2011 Return-Path: X-Original-To: forces@ietfa.amsl.com Delivered-To: forces@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 48F6221F851F for ; Sat, 17 Sep 2011 07:26:29 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: 1.08 X-Spam-Level: * X-Spam-Status: No, score=1.08 tagged_above=-999 required=5 tests=[AWL=-1.129, BAYES_50=0.001, FROM_EXCESS_BASE64=1.456, J_CHICKENPOX_24=0.6, SARE_SUB_ENC_UTF8=0.152] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Wa-I9mgjAGtu for ; Sat, 17 Sep 2011 07:26:28 -0700 (PDT) Received: from mail.zjgsu.edu.cn (ucmail.zjgsu.edu.cn [124.160.64.1]) by ietfa.amsl.com (Postfix) with SMTP id 3D43221F8514 for ; Sat, 17 Sep 2011 07:26:28 -0700 (PDT) Received: from RobinLee (unknown [10.20.0.167]) by mailportal (Coremail) with SMTP id rBCI85DLKEYIrXROABJ6AA--.23271S2; Sat, 17 Sep 2011 22:22:00 +0800 (CST) Date: Sat, 17 Sep 2011 22:26:55 +0800 From: "=?utf-8?B?Q2h1YW5odWFuZyBMaQ==?=" To: "=?utf-8?B?V2FuZyxXZWltaW5n?=" , "=?utf-8?B?SmFtYWwgSGFkaSBTYWxpbQ==?=" References: <201108122321083750056@mail.zjgsu.edu.cn>, <201108142323102342242@mail.zjgsu.edu.cn>, , <201108171557165004825@mail.zjgsu.edu.cn>, Message-ID: <201109172226553080814@mail.zjgsu.edu.cn> Organization: =?utf-8?B?WmhlamlhbmcgR29uZ3NoYW5nIFVuaXZlcmNpdHk=?= X-mailer: Foxmail 6, 15, 201, 23 [cn] Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-CM-TRANSID: rBCI85DLKEYIrXROABJ6AA--.23271S2 X-Coremail-Antispam: 1Uf129KBjDUn29KB7ZKAUJUUUUUYxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJ3UbIYCTnIWIevJa73UjIFyTuYvj4RJUUUUUUUU X-CM-SenderInfo: pfkxt0xkxd0wxbolqzhdloh6pmjv3hxhgxhubq/ Cc: =?utf-8?B?Zm9yY2Vz?= , =?utf-8?B?Sm9lbCBNLiBIYWxwZXJu?= Subject: Re: [forces] =?utf-8?q?comments_=237?= X-BeenThere: forces@ietf.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: ForCES WG mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 17 Sep 2011 14:26:29 -0000 >in Section 5.1.4.1 >--- from --- >The LFB always expects from upstream LFBs the MediaEncapInfoIndex metadata which is used as an index to lookup the Encapsulation Table. In the case an input packet contains only a VLAN priority field metadata, a default VLAN tag of 0 is assumed. >(Chuanghuang, can you explain what is the last sentense meant?) This sentence is added( and modified) by Jamal. I guess he wants to say the VLAN ID is zero in that case. But the vlan ID is obtained by looking up the EncapTable. If the priority metadata is zero, and the VLAN ID is also zero, there is no VLAN tag only in this case. I think we have specified this issue in the text: "If the Input metadata VlanPriority is non-zero, the packet will have a VLAN tag, whatever the value of VlanID is(zero or non-zero). If VlanPriority and the VlanID are all zero, there is no VLAN tag to this packet." We only need add some text to describe where the "VlanPriority" was produced. Accordingly, add some text to describe where it was consumed in EtherClassifier LFB. >--- to ---- >The LFB always expects from upstream LFBs the MediaEncapInfoIndex metadata which is used as an index to lookup the Encapsulation Table. An input packet may also optionally receive a VLAN priority metadata, indicating that the packet is originally with a priority value. The priority value will be loaded back to the packet when encapsulating. The default value for a priority metadata is 0. >---------- >(Chuanghuang, can you explain what does the meaning of the defaultValue in the XML VlanPriority ? I just can not understand how we can have a default value for an input metadata?) There is the specification In RFC5812: An input port group may "require" a given metadatum, or may treat it as "optional" information. In the latter case, the LFB class definition MUST explicitly define what happens if any optional metadata is not provided. One approach is to specify a default value for each optional metadatum, and assume that the default value is used for any metadata that is not provided with the packet. Yours, Chuanhuang From wmwang2001@hotmail.com Sun Sep 18 22:25:52 2011 Return-Path: X-Original-To: forces@ietfa.amsl.com Delivered-To: forces@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id D006B21F8B11 for ; Sun, 18 Sep 2011 22:25:52 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: 0.914 X-Spam-Level: X-Spam-Status: No, score=0.914 tagged_above=-999 required=5 tests=[AWL=0.913, BAYES_50=0.001] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id MSreBM4ZoGAq for ; Sun, 18 Sep 2011 22:25:52 -0700 (PDT) Received: from blu0-omc1-s18.blu0.hotmail.com (blu0-omc1-s18.blu0.hotmail.com [65.55.116.29]) by ietfa.amsl.com (Postfix) with ESMTP id 42F6721F8B08 for ; Sun, 18 Sep 2011 22:25:52 -0700 (PDT) Received: from BLU0-SMTP96 ([65.55.116.8]) by blu0-omc1-s18.blu0.hotmail.com with Microsoft SMTPSVC(6.0.3790.4675); Sun, 18 Sep 2011 22:28:14 -0700 X-Originating-IP: [60.186.201.103] X-Originating-Email: [wmwang2001@hotmail.com] Message-ID: Received: from WmwangHome ([60.186.201.103]) by BLU0-SMTP96.phx.gbl over TLS secured channel with Microsoft SMTPSVC(6.0.3790.4675); Sun, 18 Sep 2011 22:28:13 -0700 From: "Wang,Weiming" To: "Chuanhuang Li" , "Jamal Hadi Salim" References: <201108122321083750056@mail.zjgsu.edu.cn>, <201108142323102342242@mail.zjgsu.edu.cn>, , <201108171557165004825@mail.zjgsu.edu.cn>, <201109172226553080814@mail.zjgsu.edu.cn> Date: Mon, 19 Sep 2011 13:28:12 +0800 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5931 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.6109 X-OriginalArrivalTime: 19 Sep 2011 05:28:13.0561 (UTC) FILETIME=[ED4C6E90:01CC768C] Cc: forces , Weiming Wang , "Joel M. Halpern" Subject: Re: [forces] comments #7 X-BeenThere: forces@ietf.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: ForCES WG mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 19 Sep 2011 05:25:52 -0000 Pj4oQ2h1YW5naHVhbmcsIGNhbiB5b3UgZXhwbGFpbiB3aGF0IGRvZXMgdGhlIG1lYW5pbmcgb2Yg dGhlIGRlZmF1bHRWYWx1ZSBpbiB0aGUgWE1MIDxyZWYgZGVwZW5kZW5jeT0ib3B0aW9uYWwiIGRl ZmF1bHRWYWx1ZT0iMCI+IFZsYW5Qcmlvcml0eTwvcmVmPiA/IEkganVzdCBjYW4gbm90IHVuZGVy c3RhbmQgaG93IHdlIGNhbiBoYXZlIGEgZGVmYXVsdCB2YWx1ZSBmb3IgYW4gaW5wdXQgbWV0YWRh dGE/KQ0KPiBUaGVyZSBpcyB0aGUgc3BlY2lmaWNhdGlvbiBJbiBSRkM1ODEyOg0KPiAgIEFuIGlu cHV0IHBvcnQgZ3JvdXAgbWF5ICJyZXF1aXJlIiBhIGdpdmVuIG1ldGFkYXR1bSwgb3IgbWF5IHRy ZWF0IGl0DQo+ICAgYXMgIm9wdGlvbmFsIiBpbmZvcm1hdGlvbi4gIEluIHRoZSBsYXR0ZXIgY2Fz ZSwgdGhlIExGQiBjbGFzcw0KPiAgIGRlZmluaXRpb24gTVVTVCBleHBsaWNpdGx5IGRlZmluZSB3 aGF0IGhhcHBlbnMgaWYgYW55IG9wdGlvbmFsDQo+ICAgbWV0YWRhdGEgaXMgbm90IHByb3ZpZGVk LiAgT25lIGFwcHJvYWNoIGlzIHRvIHNwZWNpZnkgYSBkZWZhdWx0IHZhbHVlDQo+ICAgZm9yIGVh Y2ggb3B0aW9uYWwgbWV0YWRhdHVtLCBhbmQgYXNzdW1lIHRoYXQgdGhlIGRlZmF1bHQgdmFsdWUg aXMNCj4gICB1c2VkIGZvciBhbnkgbWV0YWRhdGEgdGhhdCBpcyBub3QgcHJvdmlkZWQgd2l0aCB0 aGUgcGFja2V0Lg0KSWYgYW4gaW5wdXQgbWV0YWRhdGEgaXMgZGVmaW5lZCBieSB0aGUgTEZCIGFz ICdvcHRpb25hbCcsIGl0IHNob3VsZCBub3QgYmUgcmVkZWZpbmVkIGFzIGEgICdtdXN0IGlucHV0 JyBhbnltb3JlLiAgQXMgYSByZXN1bHQsIG15IHRha2UgaXMsIHRoZSBkZWZhdWx0IGNhc2Ugd2ls bCBub3QgZXhpc3QsIGJlY2F1c2UgdGhlIExGQiBzaG91bGQgbm90IGluIGFueSBjYXNlIGV4cGVj dCBzdWNoIG1ldGFkYXRhLCByYXRoZXIsIGp1c3Qgc2hvdWxkIHJlY2VpdmUgdGhlIG1ldGFkYXRh IGlmIGl0IGlzIHRoZXJlLiBJdCB3aWxsIGhhdmUgdG8gYmUgdHJlYXRlZCBhcyBhbiBlcnJvciB0 aGF0IHRoZSBMRkIgcHJvY2Vzc2luZyBmdW5jdGlvbiBNVVNUIHJlcXVyaWUgdGhlIG1ldGFkYXRh IHdoaWxlIHRoZSBpbnB1dCBwYWNrZXQgZG9lcyBub3QgaGF2ZSBpdC4NCg0KdGhrcywNCldlaW1p bmcNCg== From wmwang2001@hotmail.com Sun Sep 18 23:01:53 2011 Return-Path: X-Original-To: forces@ietfa.amsl.com Delivered-To: forces@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id BEF2121F8B12 for ; Sun, 18 Sep 2011 23:01:53 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: 1.94 X-Spam-Level: * X-Spam-Status: No, score=1.94 tagged_above=-999 required=5 tests=[AWL=-0.214, BAYES_00=-2.599, J_CHICKENPOX_22=0.6, J_CHICKENPOX_25=0.6, J_CHICKENPOX_37=0.6, J_CHICKENPOX_47=0.6, J_CHICKENPOX_55=0.6, MIME_BASE64_TEXT=1.753] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id vEXZ1TIXXHEf for ; Sun, 18 Sep 2011 23:01:53 -0700 (PDT) Received: from blu0-omc2-s4.blu0.hotmail.com (blu0-omc2-s4.blu0.hotmail.com [65.55.111.79]) by ietfa.amsl.com (Postfix) with ESMTP id C16EA21F84B5 for ; Sun, 18 Sep 2011 23:01:52 -0700 (PDT) Received: from BLU0-SMTP63 ([65.55.111.73]) by blu0-omc2-s4.blu0.hotmail.com with Microsoft SMTPSVC(6.0.3790.4675); Sun, 18 Sep 2011 23:04:06 -0700 X-Originating-IP: [60.186.201.103] X-Originating-Email: [wmwang2001@hotmail.com] Message-ID: Received: from WmwangHome ([60.186.201.103]) by BLU0-SMTP63.phx.gbl over TLS secured channel with Microsoft SMTPSVC(6.0.3790.4675); Sun, 18 Sep 2011 23:04:05 -0700 From: "Wang,Weiming" To: "Wang,Weiming" , "Joel M. Halpern" References: <201108122255351563601@mail.zjgsu.edu.cn><201108171102177183945@mail.zjgsu.edu.cn><201108181015224373066@mail.zjgsu.edu.cn><201108221410402968991@mail.zjgsu.edu.cn><4E735401.5010105@joelhalpern.com><4E736C57.2080607@joelhalpern.com> Date: Mon, 19 Sep 2011 14:04:04 +0800 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: base64 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5931 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.6109 X-OriginalArrivalTime: 19 Sep 2011 06:04:05.0457 (UTC) FILETIME=[EFEDB410:01CC7691] Cc: forces , Chuanhuang Li Subject: Re: [forces] comments #6 X-BeenThere: forces@ietf.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: ForCES WG mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 19 Sep 2011 06:01:53 -0000 SGkgYWxsLA0KDQpJJ3YgZmluYWxseSBkZWNpZGVkIHVzaW5nIGEgJ3NlYXJjaCBrZXknIHRvIHN1 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Pj4gZm9yY2VzQGlldGYub3JnDQo+PiBodHRwczovL3d3dy5pZXRmLm9yZy9tYWlsbWFuL2xpc3Rp bmZvL2ZvcmNlcw0KPj4= From wmwang2001@hotmail.com Sun Sep 18 23:48:13 2011 Return-Path: X-Original-To: forces@ietfa.amsl.com Delivered-To: forces@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 5A33321F8B9E for ; Sun, 18 Sep 2011 23:48:13 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: 1.519 X-Spam-Level: * X-Spam-Status: No, score=1.519 tagged_above=-999 required=5 tests=[AWL=0.229, BAYES_05=-1.11, J_CHICKENPOX_16=0.6, J_CHICKENPOX_37=0.6, J_CHICKENPOX_43=0.6, J_CHICKENPOX_47=0.6] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id XLr2MetbusBJ for ; Sun, 18 Sep 2011 23:48:12 -0700 (PDT) Received: from blu0-omc2-s2.blu0.hotmail.com (blu0-omc2-s2.blu0.hotmail.com [65.55.111.77]) by ietfa.amsl.com (Postfix) with ESMTP id C111E21F8B21 for ; Sun, 18 Sep 2011 23:48:11 -0700 (PDT) Received: from BLU0-SMTP84 ([65.55.111.71]) by blu0-omc2-s2.blu0.hotmail.com with Microsoft SMTPSVC(6.0.3790.4675); Sun, 18 Sep 2011 23:50:30 -0700 X-Originating-IP: [60.186.201.103] X-Originating-Email: [wmwang2001@hotmail.com] Message-ID: Received: from WmwangHome ([60.186.201.103]) by BLU0-SMTP84.phx.gbl over TLS secured channel with Microsoft SMTPSVC(6.0.3790.4675); Sun, 18 Sep 2011 23:50:28 -0700 From: "Wang,Weiming" To: "Jamal Hadi Salim" , "Chuanhuang Li" References: <201108171012085314855@mail.zjgsu.edu.cn> Date: Mon, 19 Sep 2011 14:50:25 +0800 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5931 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.6109 X-OriginalArrivalTime: 19 Sep 2011 06:50:29.0069 (UTC) FILETIME=[6B172FD0:01CC7698] Cc: forces@ietf.org, "Joel M. Halpern" Subject: Re: [forces] comments #11 X-BeenThere: forces@ietf.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: ForCES WG mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 19 Sep 2011 06:48:13 -0000 SGkgSmFtYWwgYW5kIENodWFuaHVhbmcsDQoNCkkndiBtb2RpZmllZCB0aGUgd2hvbGUgdGV4dCBm b3IgdGhlIE5leHQgSG9wIExGQiBhcyBiZWxvdywgd2hpY2ggaW5jbHVkZSBhbGwgeW91IGRpc2N1 c3NlZC4gUGxzIGNoZWNrIHRvIHJldmlldyBpdC4gDQoNCkFmdGVyIHlvdXIgcmVzcG9uc2UsIEkg aG9wZSB0byBjbG9zZSB0aGlzIGlzc3VlLg0KDQp0aGFua3MsDQpXZWltaW5nDQotLS0tLS0tLS0t DQo1LjMuMi4gSVB2NE5leHRIb3ANCiANClRoaXMgTEZCIGFic3RyYWN0cyB0aGUgcHJvY2VzcyBv ZiBzZWxlY3RpbmcgaXB2NCBuZXh0IGhvcCBhY3Rpb24uICANCiANCjUuMy4yLjEuIERhdGEgSGFu ZGxpbmcNCiANClRoZSBMRkIgYWJzdHJhY3RzIHRoZSBwcm9jZXNzIG9mIG5leHQgaG9wIGluZm9y bWF0aW9uIGFwcGxpY2F0aW9uIHRvIElQdjQgcGFja2V0cy4gSXQgcmVjZWl2ZXMgYW4gSVB2NCBw YWNrZXQgd2l0aCBhbiBhc3NvY2lhdGVkIG5leHQgaG9wIGlkZW50aWZpZXIgKEhvcFNlbGVjdG9y 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b2YgdGhhdCBzZWN0aW9uLg0KSSB3YXMgdGFsa2luZyBhYm91dCB3aGVyZSBtZXRhZGF0YSB3YXMg Y3JlYXRlZCBub3Qgd2hlcmUgaXQgaXMgdG8gYmUgY29uc3VtZWQuDQpJbiByZXRyb3NwZWN0LCBk b250IGJvdGhlciBhZGRpbmcgdGV4dCBhYm92ZSAtIEkgdGhpbmsgdGhlIHRleHQgd2lsbA0KYmUg c2xpZ2h0bHkgaGFyZGVyIHRvIHJlYWQgYXMgaXQgc3RhbmRzLCBidXQgd2UgY2FuIGxpdmUgd2l0 aCBpdC4NCg0KPj4+IDI5KTUuMy4yLjEuDQo+Pj4gIklDTVAgcGFja2V0IG5lZWRzIHRvIGJlIGdl bmVyYXRlZCINCj4+PiBDb3VsZCB5b3Ugc3VtbWFyaXplIHdoeSBJQ01QIHBhY2tldHMgbmVlZCB0 byBiZSBnZW5lcmF0ZWQ/DQo+IFRoZSBtYWluIHJlYXNvbiBpcyB0aGVyZSBhcmUgbm8gcm91dGVz IGF0IGFsbCAoaW5jbHVkaW5nIG5vIGRlZmF1bHQgcm91dGUpIGZvciB0aGUgcGFja2V0Lg0KPiBJ IHN1Z2dlc3QgbW9kaWZ5aW5nIHRoaXMgZXhlY3B0aW9uIHRvICJUaGVyZSBhcmUgbm8gcm91dGVz IGZvciB0aGUgcGFja2V0IiBkaXJlY3RseS4NCj4NCg0KT2sgLSB0aGF0cyB1c2VmdWwgdG8gYWRk Lg0KDQpjaGVlcnMsDQpqYW1hbA== From chuanhuang_li@mail.zjgsu.edu.cn Mon Sep 19 00:02:57 2011 Return-Path: X-Original-To: forces@ietfa.amsl.com Delivered-To: forces@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 1BC5521F8B14 for ; Mon, 19 Sep 2011 00:02:57 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: 0.825 X-Spam-Level: X-Spam-Status: No, score=0.825 tagged_above=-999 required=5 tests=[AWL=-0.784, BAYES_50=0.001, FROM_EXCESS_BASE64=1.456, SARE_SUB_ENC_UTF8=0.152] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id DwgQRI+oj2bC for ; Mon, 19 Sep 2011 00:02:56 -0700 (PDT) Received: from mail.zjgsu.edu.cn (ucmail.zjgsu.edu.cn [124.160.64.1]) by ietfa.amsl.com (Postfix) with SMTP id AB3D121F8B9A for ; Mon, 19 Sep 2011 00:02:55 -0700 (PDT) Received: from RobinLee (unknown [10.20.0.167]) by mailportal (Coremail) with SMTP id rBCI85D734UN6HZOABJ6AA--.28092S2; Mon, 19 Sep 2011 14:58:21 +0800 (CST) Date: Mon, 19 Sep 2011 15:03:52 +0800 From: "=?utf-8?B?Q2h1YW5odWFuZyBMaQ==?=" To: "=?utf-8?B?V2FuZyxXZWltaW5n?=" , "=?utf-8?B?SmFtYWwgSGFkaSBTYWxpbQ==?=" References: <201108122321083750056@mail.zjgsu.edu.cn>, <201108142323102342242@mail.zjgsu.edu.cn>, , <201108171557165004825@mail.zjgsu.edu.cn>, , <201109172226553080814@mail.zjgsu.edu.cn> Message-ID: <201109191503527148851@mail.zjgsu.edu.cn> Organization: =?utf-8?B?WmhlamlhbmcgR29uZ3NoYW5nIFVuaXZlcmNpdHk=?= X-mailer: Foxmail 6, 15, 201, 23 [cn] Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-CM-TRANSID: rBCI85D734UN6HZOABJ6AA--.28092S2 X-Coremail-Antispam: 1Uf129KBjDUn29KB7ZKAUJUUUUUYxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJ3UbIYCTnIWIevJa73UjIFyTuYvj4RJUUUUUUUU X-CM-SenderInfo: pfkxt0xkxd0wxbolqzhdloh6pmjv3hxhgxhubq/ Cc: =?utf-8?B?Zm9yY2Vz?= , =?utf-8?B?V2VpbWluZyBXYW5n?= , =?utf-8?B?Sm9lbCBNLiBIYWxwZXJu?= Subject: Re: [forces] =?utf-8?q?comments_=237?= X-BeenThere: forces@ietf.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: ForCES WG mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 19 Sep 2011 07:02:57 -0000 >If an input metadata is defined by the LFB as 'optional', it should not be redefined as a 'must input' >anymore. As a result, my take is, the default case will not exist, because the LFB should not in any case >expect such metadata, rather, just should receive the metadata if it is there. It will have to be treated as >an error that the LFB processing function MUST requrie the metadata while the input packet does not have >it. If the input metadata is not "optional" but "must", on the contrary, i think it shouldn't have default value. Default value is just used to tell to the LFB that this metadta haven't been produced by the upstream LFBs. So LFB can do something to deal with this situation. Yours, Chuanhuang From chuanhuang_li@mail.zjgsu.edu.cn Mon Sep 19 00:24:41 2011 Return-Path: X-Original-To: forces@ietfa.amsl.com Delivered-To: forces@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id D554221F8B8C for ; Mon, 19 Sep 2011 00:24:41 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: 0.762 X-Spam-Level: X-Spam-Status: No, score=0.762 tagged_above=-999 required=5 tests=[AWL=-0.661, BAYES_40=-0.185, FROM_EXCESS_BASE64=1.456, SARE_SUB_ENC_UTF8=0.152] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id EPI709sEd3W1 for ; Mon, 19 Sep 2011 00:24:41 -0700 (PDT) Received: from mail.zjgsu.edu.cn (ucmail.zjgsu.edu.cn [124.160.64.1]) by ietfa.amsl.com (Postfix) with SMTP id AE64921F8B8B for ; Mon, 19 Sep 2011 00:24:39 -0700 (PDT) Received: from RobinLee (unknown [10.20.0.167]) by mailportal (Coremail) with SMTP id rBCI85D7IIcl7XZOABJ6AA--.28151S2; Mon, 19 Sep 2011 15:20:06 +0800 (CST) Date: Mon, 19 Sep 2011 15:25:37 +0800 From: "=?utf-8?B?Q2h1YW5odWFuZyBMaQ==?=" To: "=?utf-8?B?V2FuZyxXZWltaW5n?=" , "=?utf-8?B?SmFtYWwgSGFkaSBTYWxpbQ==?=" References: <201108122321083750056@mail.zjgsu.edu.cn>, <201108142323102342242@mail.zjgsu.edu.cn>, , <201108171557165004825@mail.zjgsu.edu.cn>, , <201109172226553080814@mail.zjgsu.edu.cn> Message-ID: <201109191525371998732@mail.zjgsu.edu.cn> Organization: =?utf-8?B?WmhlamlhbmcgR29uZ3NoYW5nIFVuaXZlcmNpdHk=?= X-mailer: Foxmail 6, 15, 201, 23 [cn] Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-CM-TRANSID: rBCI85D7IIcl7XZOABJ6AA--.28151S2 X-Coremail-Antispam: 1Uf129KBjDUn29KB7ZKAUJUUUUUYxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJ3UbIYCTnIWIevJa73UjIFyTuYvj4RJUUUUUUUU X-CM-SenderInfo: pfkxt0xkxd0wxbolqzhdloh6pmjv3hxhgxhubq/ Cc: =?utf-8?B?Zm9yY2Vz?= , =?utf-8?B?V2VpbWluZyBXYW5n?= , =?utf-8?B?Sm9lbCBNLiBIYWxwZXJu?= Subject: Re: [forces] =?utf-8?q?comments_=237?= X-BeenThere: forces@ietf.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: ForCES WG mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 19 Sep 2011 07:24:42 -0000 >If an input metadata is defined by the LFB as 'optional', it should not be redefined as a 'must input' >anymore. As a result, my take is, the default case will not exist, because the LFB should not in any case >expect such metadata, rather, just should receive the metadata if it is there. It will have to be treated as >an error that the LFB processing function MUST requrie the metadata while the input packet does not have >it. If the input metadata is not "optional" but "must", on the contrary, i think it shouldn't have default value. Default value is just used to tell to the LFB that this metadta haven't been produced by the upstream LFBs. So LFB can do something to deal with this situation. Yours, Chuanhuang From hadi@mojatatu.com Mon Sep 19 03:28:17 2011 Return-Path: X-Original-To: forces@ietfa.amsl.com Delivered-To: forces@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id A0E0621F8A7A for ; Mon, 19 Sep 2011 03:28:17 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -102.026 X-Spam-Level: X-Spam-Status: No, score=-102.026 tagged_above=-999 required=5 tests=[AWL=-0.249, BAYES_00=-2.599, FM_FORGED_GMAIL=0.622, J_CHICKENPOX_37=0.6, J_CHICKENPOX_47=0.6, RCVD_IN_DNSWL_LOW=-1, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id EZsENhORqtqg for ; Mon, 19 Sep 2011 03:28:17 -0700 (PDT) Received: from mail-fx0-f44.google.com (mail-fx0-f44.google.com [209.85.161.44]) by ietfa.amsl.com (Postfix) with ESMTP id 3F60321F847B for ; Mon, 19 Sep 2011 03:28:12 -0700 (PDT) Received: by fxd18 with SMTP id 18so4125511fxd.31 for ; Mon, 19 Sep 2011 03:30:33 -0700 (PDT) Received: by 10.223.100.71 with SMTP id x7mr4863920fan.18.1316428233225; Mon, 19 Sep 2011 03:30:33 -0700 (PDT) MIME-Version: 1.0 Received: by 10.223.114.11 with HTTP; Mon, 19 Sep 2011 03:30:13 -0700 (PDT) In-Reply-To: References: <201108122255351563601@mail.zjgsu.edu.cn> <201108171102177183945@mail.zjgsu.edu.cn> <201108181015224373066@mail.zjgsu.edu.cn> <201108221410402968991@mail.zjgsu.edu.cn> <4E735401.5010105@joelhalpern.com> <4E736C57.2080607@joelhalpern.com> From: Jamal Hadi Salim Date: Mon, 19 Sep 2011 06:30:13 -0400 Message-ID: To: "Wang,Weiming" Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Cc: "Joel M. Halpern" , Chuanhuang Li , forces Subject: Re: [forces] comments #6 X-BeenThere: forces@ietf.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: ForCES WG mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 19 Sep 2011 10:28:17 -0000 Weiming, This looks reasonable to me. cheers, jamal On Sat, Sep 17, 2011 at 4:53 AM, Wang,Weiming wrot= e: > Chuanhuang and Jamal, > > According to the discussion, I think only the following content keys shou= ld be defined in XML. =A0Pls double check it: > > IPv4UcastLPM: > =A0IPv4PrefixTable, content Key: IPv4Address. > > IPv6UcastLPM: > =A0IPv6PrefixTable, content Key: IPv6Address. > > GenericScheduler: > =A0CurrentQueueDepth, content Key: QueueID.( not sure if it is a must? Be= cause the queue number is not so large, so if =A0there is no such key, CE m= ay still be able to get queue depth info by query the whole depth table ) > > By defining above content keys, we may also have to consider how the LFB = will respond to CE if it can not support the content key. On Mon, Sep 19, 2011 at 2:04 AM, Wang,Weiming wrot= e: > Hi all, > > I'v finally decided using a 'search key' to substitute some 'content key'= s and some 'index's in the description text where they all mean some search= keys that are used by FE ( rather than CE) to look up some tables. > > Now we are closing to the close of the issue, only with Chuanhuang to ch= eck all LFB definitions to decide if some 'Content Key's should be defined = in the >components. From hadi@mojatatu.com Mon Sep 19 04:07:31 2011 Return-Path: X-Original-To: forces@ietfa.amsl.com Delivered-To: forces@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id CE5A421F8A58 for ; Mon, 19 Sep 2011 04:07:31 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -101.72 X-Spam-Level: X-Spam-Status: No, score=-101.72 tagged_above=-999 required=5 tests=[AWL=-0.543, BAYES_00=-2.599, FM_FORGED_GMAIL=0.622, J_CHICKENPOX_16=0.6, J_CHICKENPOX_37=0.6, J_CHICKENPOX_47=0.6, RCVD_IN_DNSWL_LOW=-1, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id DYm83PQtOFnY for ; Mon, 19 Sep 2011 04:07:31 -0700 (PDT) Received: from mail-fx0-f44.google.com (mail-fx0-f44.google.com [209.85.161.44]) by ietfa.amsl.com (Postfix) with ESMTP id D55CB21F862F for ; Mon, 19 Sep 2011 04:07:30 -0700 (PDT) Received: by fxd18 with SMTP id 18so4163460fxd.31 for ; Mon, 19 Sep 2011 04:09:53 -0700 (PDT) Received: by 10.223.101.84 with SMTP id b20mr4948709fao.94.1316430593079; Mon, 19 Sep 2011 04:09:53 -0700 (PDT) MIME-Version: 1.0 Received: by 10.223.114.11 with HTTP; Mon, 19 Sep 2011 04:09:32 -0700 (PDT) In-Reply-To: References: <201108171012085314855@mail.zjgsu.edu.cn> From: Jamal Hadi Salim Date: Mon, 19 Sep 2011 07:09:32 -0400 Message-ID: To: "Wang,Weiming" Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Cc: "Joel M. Halpern" , Chuanhuang Li , forces@ietf.org Subject: Re: [forces] comments #11 X-BeenThere: forces@ietf.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: ForCES WG mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 19 Sep 2011 11:07:31 -0000 Hi Weiming, ACK with comments below: On Mon, Sep 19, 2011 at 2:50 AM, Wang,Weiming wrot= e: > Hi Jamal and Chuanhuang, > > I'v modified the whole text for the Next Hop LFB as below, which include = all you discussed. Pls check to review it. > > After your response, I hope to close this issue. > > thanks, > Weiming > ---------- > 5.3.2. IPv4NextHop > > This LFB abstracts the process of selecting ipv4 next hop action. > > 5.3.2.1. Data Handling > > The LFB abstracts the process of next hop information application to IPv4= packets. It receives an IPv4 packet with an associated next hop identifier= (HopSelector), and uses the identifier as a table index to look up a next = hop table to find an appropriate LFB output port. > > The LFB is expected to receive unicast IPv4 packets, via a singleton inpu= t known as "PcktsIn" along with a HopSelector metadata which is used as a t= able index to lookup the NextHop table. The data processing involves the fo= rwarding TTL decrement and IP checksum recalculation. > > Two output LFB ports are defined. > > The first output is a group output port known as "SuccessOut". On =A0 =A0= successful data processing the packet is sent out an LFB-port from =A0 with= in the LFB port group as selected by the LFBOutputSelectIndex =A0 value of = the matched table entry. The packet is sent to a downstream =A0 LFB alongsi= de with the L3PortID and MediaEncapInfoIndex metadata. > > The second output is a singleton output port known as "ExceptionOut", =A0= which will output packets for which the data processing failed, along with= an additional ExceptionID metadata to indicate what caused the exception. = Currently defined exception types include: > o The HopSelector for the packet is invalid. > o The packet failed lookup of the NextHop table even though the HopSelect= or is valid. > o The MTU for outgoing interface is less than the packet size. > > Downstream LFB instances could be either a BasicMetadataDispatch type (Se= ction 5.5.1), used to fanout to different LFB instances or a media encapsul= ation >related type, such as an EtherEncap type or a RedirectOut type(Secti= on 5.4.2). For example, if there are Ethernet and other tunnel Encapsulatio= n, then a >BasicMetadataDispatch LFB can use the L3PortID metadata (See sec= tion below) to dispatch packets to different Encapsulator. I would suggest to use xrefs for the sections mentioned above; if those sections get moved, it still works. Also instead of "section below" - just add xref to proper section. > 5.3.2.2. Components > >This LFB has only one component named IPv4NextHopTable which is defined as= an array. The array index of IPv4NextHopTable is used for a HopSelector to= find >out a row of the table as the next hop information. Each row of the = array is a struct containing: > =A0 O The L3PortID, which is the ID of the Logical Output Port that is pa= ssed onto the downstream LFB instance. This ID indicates what port to the n= eighbor is as > defined by L3. The last sentence on L3PortID is unclear. I may have missed it - but I think, somewhere, we need to specify what L3PortID represents. Some text from Joel's email here can be used: https://www.ietf.org/mail-archive/web/forces/current/msg03999.html > =A0 O MTU, the Maximum Transmission Unit for the outgoing port. > =A0 O NextHopIPAddr, the IPv4 next hop Address. > O MediaEncapInfoIndex, the index we pass onto the downstream LFB instance= . This index is used as a search key to lookup a table (typically media enc= apsulation > related) further downstream. In some cases, depending on implementation, = the CE may set the MediaEncapInfoIndex passed downstream to a value that wi= ll fail > lookup when it gets to a target encapsulation LFB; such a lookup failure = at that point is an indication that further resolution is needed. For an ex= ample of this > approach refer to section 7.2 which talks about ARP and mentions this app= roach. > =A0 o LFBOutputSelectIndex, the LFB Group output port index to select dow= nstream LFB port. This index exactly is the FromPortIndex for the port grou= p > "SuccessOut" in the table LFBTopology of FEObject LFB as defined in the N= exthop LFB. > -------------- Last sentence is a little confusing; maybe re-write as: " LFBOutputSelectIndex is a 1-to-1 mapping with FEObject LFB's table LFBTopology(RFC 5812) component FromPortIndex corresponding to the port group mapping FromLFBID as IPv4NextHop LFB instance." cheers, jamal From wmwang2001@hotmail.com Mon Sep 19 06:33:18 2011 Return-Path: X-Original-To: forces@ietfa.amsl.com Delivered-To: forces@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 2B49121F8BBF for ; Mon, 19 Sep 2011 06:33:18 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: 0.493 X-Spam-Level: X-Spam-Status: No, score=0.493 tagged_above=-999 required=5 tests=[AWL=1.233, BAYES_20=-0.74] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id jK4P6mAkKH18 for ; Mon, 19 Sep 2011 06:33:17 -0700 (PDT) Received: from blu0-omc2-s28.blu0.hotmail.com (blu0-omc2-s28.blu0.hotmail.com [65.55.111.103]) by ietfa.amsl.com (Postfix) with ESMTP id 85AAB21F8BAD for ; Mon, 19 Sep 2011 06:33:17 -0700 (PDT) Received: from BLU0-SMTP70 ([65.55.111.72]) by blu0-omc2-s28.blu0.hotmail.com with Microsoft SMTPSVC(6.0.3790.4675); Mon, 19 Sep 2011 06:35:40 -0700 X-Originating-IP: [60.186.201.103] X-Originating-Email: [wmwang2001@hotmail.com] Message-ID: Received: from WmwangHome ([60.186.201.103]) by BLU0-SMTP70.phx.gbl over TLS secured channel with Microsoft SMTPSVC(6.0.3790.4675); Mon, 19 Sep 2011 06:35:39 -0700 From: "Wang,Weiming" To: "Chuanhuang Li" , "Joel M. Halpern" References: , <201109010919027653873@mail.zjgsu.edu.cn>, <201109011105325780938@mail.zjgsu.edu.cn>, <4E5EF6E8.4050903@stevecrocker.com>, <201109011511399686610@mail.zjgsu.edu.cn> <201109022200213598571@mail.zjgsu.edu.cn> Date: Mon, 19 Sep 2011 21:35:38 +0800 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5931 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.6109 X-OriginalArrivalTime: 19 Sep 2011 13:35:39.0901 (UTC) FILETIME=[0579C2D0:01CC76D1] Cc: forces@ietf.org Subject: Re: [forces] comments on EtherClassifier output port X-BeenThere: forces@ietf.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: ForCES WG mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 19 Sep 2011 13:33:18 -0000 QSBwYXJhZ3JhcGggaXMgYWRkZWQgZm9yIHRoZSBleGNlcHRpb24gb3V0cHV0IGFzIGJlbG93LCBw bHMgcmVzcG9uZCBpZiBhbnkgcXVlc3Rpb24sIG9yIHRoZSBpc3N1ZSBpcyBjbG9zZWQuDQoNCi0t LS1TZWN0aW9uIDUuMS4zLjEuLS0tLS0tLS0tDQouLi4NClRoZSBzZWNvbmQgb3V0cHV0IGlzIGEg c2luZ2xldG9uIG91dHB1dCBwb3J0IGtub3duIGFzICJFeGNlcHRpb25PdXQiLCAgIHdoaWNoIHdp bGwgb3V0cHV0IHBhY2tldHMgZm9yIHdoaWNoIHRoZSBkYXRhIHByb2Nlc3NpbmcgZmFpbGVkLCBh bG9uZyB3aXRoIGFuIGFkZGl0aW9uYWwgRXhjZXB0aW9uSUQgbWV0YWRhdGEgdG8gaW5kaWNhdGUg d2hhdCBjYXVzZWQgdGhlIGV4Y2VwdGlvbi4gQ3VycmVudGx5IGRlZmluZWQgZXhjZXB0aW9uIHR5 cGVzIGluY2x1ZGU6IA0KbyBUaGVyZSBpcyBubyBtYXRjaGluZyB3aGVuIGNsYXNzaWZ5aW5nIHRo ZSBwYWNrZXQuDQpVc3VhbGx5IHRoZSBleGNlcHRpb24gb3V0IHBvcnQgbWF5IHBvaW50IHRvIG5v IHdoZXJlLCBpbmRpY2F0aW5nIHBhY2tldHMgd2l0aCBleGNlcHRpb25zIGFyZSBkcm9wcGVkLCB3 aGlsZSBpbiBzb21lIGNhc2VzLCB0aGUgb3V0cHV0IG1heSBiZSBwb2ludGVkIHRvIHRoZSBwYXRo IHRvIHRoZSBDRSBmb3IgZnVydGhlciBwcm9jZXNzaW5nLCBkZXBlbmRpbmcgb24gaW5kaXZpZHVh bCBpbXBsZW1lbnRhdGlvbnMuIA0KLS0tLS0tLS0tLS0tLS0tLQ0KDQp0aGFua3MsDQpXZWltaW5n DQoNCg0KLS0tLS0gT3JpZ2luYWwgTWVzc2FnZSAtLS0tLSANCkZyb206ICJDaHVhbmh1YW5nIExp IiA8Y2h1YW5odWFuZ19saUBtYWlsLnpqZ3N1LmVkdS5jbj4NCg0KPiBIaSwgQWxsDQo+ICAgIEFz IGFuIGNvbmNsdXNpb24sICBpIGxpc3QgdGhlIHBvcnQgZGVmaW5pdG9uIG9mIEV0aGVyQ2xhc3Np Zmllci4gV2UgYWRkIGFuIG91dHB1dCBwb3J0IA0KPiBuYW1lZCAiRXhjZXB0aW9uT3V0Ii4NCj4g DQo+IElucHV0czoNCj4gRXRoZXJQa3RzSW4sICBzaW5nbGUgaW5wdXQNCj4gZnJhbWVFeHBlY3Rl ZDogQXJiaXRyYXJ5DQo+IG1ldGFkYXRhRXhwZWN0ZWQ6IFBIWVBvcnRJRCwgTG9naWNhbFBvcnRJ RCAob3B0aW9uYWwsIGRlZmF1bHRWYWx1ZTowKSAgDQo+IA0KPiBPdXRwdXRzOg0KPiBDbGFzc2lm eU91dCwgIGdyb3VwIG91dHB1dA0KPiBmcmFtZVByb2R1Y2VkOiBBcmJpdHJhcnkNCj4gbWV0YWRh dGFQcm9kdWNlZDogUEhZUG9ydElELCBFdGhlclR5cGUsIFNyY01BQywgRHN0TUFDLCBMb2dpY1Bv cnRJRCwgVmxhbklEIChhdmFpbGFiaWxpdHk9ImNvbmRpdGlvbmFsIiksIFZsYW5Qcmlvcml0eSAo YXZhaWxhYmlsaXR5PSJjb25kaXRpb25hbCIpIA0KPiANCj4gRXhjZXB0aW9uT3V0LCBzaW5nbGUg b3V0cHV0DQo+IGZyYW1lUHJvZHVjZWQ6IEFyYml0cmFyeQ0KPiBtZXRhZGF0YVByb2R1Y2VkOiBF eGNlcHRpb25JRCAgICANCj4gLypFeGNlcHRpb25JRCBUeXBlLiANCj4gICAgIG8gVGhlcmUgYXJl IG5vIG1hdGhpbmcgaW4gY2xhc3NpZmljYXRpb24uDQo+ICovDQo+IA0KPiBUaGUgdGV4dCBjYW4g YmUgbW9kaWZpZWQgYWNjb3JkaW5nIHRoaXMgZGVmaW5pdGlvbiBpbiBEYXRhIGhhbmRsaW5nIHNl Y3Rpb24uIA0KPiANCj4gWW91cnMsDQo+IENodWFuaHVhbmcNCj4gDQo+IA0KPiANCj4gPT09PT09 PSAyMDExLTA5LTAxIDIyOjAwOjA5IEpvZWwgTS4gSGFscGVybiwgd3JvdGU6ID09PT09PT0NCj4g DQo+PkkgY2FuIGxpdmUgd2l0aCB0cmVhdGluZyBpdCBhcyBhbiBleGNlcHRpb24sIGFuZCB1c2lu ZyBFeGNlcHRpb25PdXQuDQo+PllvdXJzLA0KPj5Kb2VsDQo+Pg0KPj5PbiA5LzEvMjAxMSAzOjEx IEFNLCBDaHVhbmh1YW5nIExpIHdyb3RlOg0KPj4+IEhpLCBBbGwNCj4+PiAgICAgIFdlIG5lZWQg YWRkIGFuIExGQiBwb3J0IGluIEV0aGVyQ2xhc3NpZmllciB0byBvdXRwdXQgdGhlIHBhY2tldHMN Cj4+PiB3aGljaCBjYW4ndCBiZSBjbGFzc2lmaWVkLiBUaGV5IGNhbiBiZSBwcm9jZXNzZWQgaW4g b3RoZXIgTEZCIG9yDQo+Pj4gcmVkaXJlY3RlZCB0byBDRS4gSm9lbCBhZ3JlZSB3aXRoIG1lIG9u IHRoaXMgc3VnZ2VzdC4NCj4+PiBIaXMgb3BpbmlvbiwgdGhpcyBMRkIgcG9ydCBjYW4gYmUgbmFt ZWQgIm5vTWF0Y2hpbmdDbGFzc2lmaWNhdGlvbiIuDQo+Pj4NCj4+PiBKb2VsLCBidXQgSSB0aGlu aywgc2ltaWxhciB0byBvdGhlciBMRkJzLCBpdCBpcyBiZXN0IG5hbWVkICJFeGNlcHRpb25PdXQi LiBXZQ0KPj4+IGNhbiB1c2UgRXhjZXB0aW9uSUQgdG8gZGVzY3JpYmUgdGhlIHBhY2tldHMnIHN0 YXR1cywgc28gQ0UgY2FuIGtub3cNCj4+PiBob3cgdG8gcHJvY2VzcyB0aGVtLg0KPj4+DQo+Pj4g WW91cnMsDQo+Pj4gQ2h1YW5odWFuZw0KPj4+DQo+Pj4NCj4+Pg0KPiANCj4gDQo+ From wmwang2001@hotmail.com Thu Sep 22 05:46:42 2011 Return-Path: X-Original-To: forces@ietfa.amsl.com Delivered-To: forces@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 7138321F8CC6 for ; 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Thu, 22 Sep 2011 05:49:11 -0700 From: "Wang,Weiming" To: "Jamal Hadi Salim" References: <201108171012085314855@mail.zjgsu.edu.cn> Date: Thu, 22 Sep 2011 20:49:05 +0800 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: base64 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5931 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.6109 X-OriginalArrivalTime: 22 Sep 2011 12:49:12.0142 (UTC) FILETIME=[0714BEE0:01CC7926] Cc: "Joel M. Halpern" , Chuanhuang Li , forces@ietf.org Subject: Re: [forces] comments #11 X-BeenThere: forces@ietf.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: ForCES WG mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 22 Sep 2011 12:46:42 -0000 SmFtYWzvvIxhbmQgQ2h1YW5odWFuZyBhcyB3ZWxsLA0KDQpwbHMgc2VlIHJlcGx5IGlubGluZS4g DQoNCnRoYW5rcywNCldlaW1pbmcNCi0tLS0tIE9yaWdpbmFsIE1lc3NhZ2UgLS0tLS0gDQpGcm9t OiAiSmFtYWwgSGFkaSBTYWxpbSIgPGhhZGlAbW9qYXRhdHUuY29tPg0KICANCj4gNS4zLjIuMi4g Q29tcG9uZW50cw0KPg0KPlRoaXMgTEZCIGhhcyBvbmx5IG9uZSBjb21wb25lbnQgbmFtZWQgSVB2 NE5leHRIb3BUYWJsZSB3aGljaCBpcyBkZWZpbmVkIGFzIGFuIGFycmF5LiBUaGUgYXJyYXkgaW5k ZXggb2YgSVB2NE5leHRIb3BUYWJsZSBpcyB1c2VkIGZvciBhIEhvcFNlbGVjdG9yIHRvIGZpbmQg Pm91dCBhIHJvdyBvZiB0aGUgdGFibGUgYXMgdGhlIG5leHQgaG9wIGluZm9ybWF0aW9uLiBFYWNo IHJvdyBvZiB0aGUgYXJyYXkgaXMgYSBzdHJ1Y3QgY29udGFpbmluZzoNCj4gTyBUaGUgTDNQb3J0 SUQsIHdoaWNoIGlzIHRoZSBJRCBvZiB0aGUgTG9naWNhbCBPdXRwdXQgUG9ydCB0aGF0IGlzIHBh c3NlZCBvbnRvIHRoZSBkb3duc3RyZWFtIExGQiBpbnN0YW5jZS4gVGhpcyBJRCBpbmRpY2F0ZXMg d2hhdCBwb3J0IHRvIHRoZSBuZWlnaGJvciBpcyBhcw0KPiBkZWZpbmVkIGJ5IEwzLg0KDQpKYW1h bDogVGhlIGxhc3Qgc2VudGVuY2Ugb24gTDNQb3J0SUQgaXMgdW5jbGVhci4NCkkgbWF5IGhhdmUg bWlzc2VkIGl0IC0gYnV0IEkgdGhpbmssIHNvbWV3aGVyZSwgd2UgbmVlZCB0byBzcGVjaWZ5IHdo YXQNCkwzUG9ydElEIHJlcHJlc2VudHMuDQpTb21lIHRleHQgZnJvbSBKb2VsJ3MgZW1haWwgaGVy ZSBjYW4gYmUgdXNlZDoNCmh0dHBzOi8vd3d3LmlldGYub3JnL21haWwtYXJjaGl2ZS93ZWIvZm9y Y2VzL2N1cnJlbnQvbXNnMDM5OTkuaHRtbA0KDQpXYW5nUmU6IEkgY2hlY2tlZCB0aGUgZW1haWwg YW5kIEkgaGFkIGRlY2lkZWQgdG8gY2hhbmdlIGxhc3Qgc2VudGVuc2UgdG86IA0KIiBUaGUgTDNQ b3J0SUQsIHdoaWNoIGlzIHRoZSBJRCBvZiB0aGUgTG9naWNhbCBPdXRwdXQgUG9ydCB0aGF0IGlz IHBhc3NlZCBvbnRvIHRoZSBkb3duc3RyZWFtIExGQiBpbnN0YW5jZS4gVGhpcyBJRCBpbmRpY2F0 ZXMgd2hhdCBwb3J0IHRvIHRoZSBuZWlnaGJvciBpcyBhcyBkZWZpbmVkIGJ5IEwzLiBIZW5jZSwg dGhlIEwzUG9ydElEIGFjdHMgYXMgYSBjb25jZXB0dWFsIGRpc3BhdGNoZXIuIEJ5IHVzZSBvZiB0 aGUgTDNQb3J0SUQgbXVsdGlwbGUgZW5jYXBzdWxhdGlvbiBtZWRpYSBMRkJzIG1heSBmb2xsb3cg dGhlIE5leHRIb3AgTEZCLiAiDQpCdXQsIGxhdGVyIEkgZm91bmQgc3VjaCBjaGFuZ2UgbWlnaHQg YmUgd3JvbmcsIGJlY2F1c2UgdGhlIE1lZGlhRW5jYXBJbmZvSW5kZXggc2VlbXMgdG8gZG8gdGhl IHdvcmsgY2hvb3NpbmcgbmV4dCBlbmNhcHN1bGF0b3IgTEZCcy4gQXMgYSByZXN1bHQsIEknbSBh dCBhIGxvc3MuIENodWFuaHVhbmcsICBwbHMgZ2l2ZSBtb3JlIGRldGFpbGVkIGV4cGxhbmF0aW9u LiB0aGtzLg0KDQo+IE8gTVRVLCB0aGUgTWF4aW11bSBUcmFuc21pc3Npb24gVW5pdCBmb3IgdGhl IG91dGdvaW5nIHBvcnQuDQo+IE8gTmV4dEhvcElQQWRkciwgdGhlIElQdjQgbmV4dCBob3AgQWRk cmVzcy4NCj4gTyBNZWRpYUVuY2FwSW5mb0luZGV4LCB0aGUgaW5kZXggd2UgcGFzcyBvbnRvIHRo ZSBkb3duc3RyZWFtIExGQiBpbnN0YW5jZS4gVGhpcyBpbmRleCBpcyB1c2VkIGFzIGEgc2VhcmNo IGtleSB0byBsb29rdXAgYSB0YWJsZSAodHlwaWNhbGx5IG1lZGlhIGVuY2Fwc3VsYXRpb24gcmVs YXRlZCkgZnVydGhlciBkb3duc3RyZWFtLiBJbiBzb21lIGNhc2VzLCBkZXBlbmRpbmcgb24gaW1w bGVtZW50YXRpb24sIHRoZSBDRSBtYXkgc2V0IHRoZSBNZWRpYUVuY2FwSW5mb0luZGV4IHBhc3Nl ZCBkb3duc3RyZWFtIHRvIGEgdmFsdWUgdGhhdCB3aWxsIGZhaWwgbG9va3VwIHdoZW4gaXQgZ2V0 cyB0byBhIHRhcmdldCBlbmNhcHN1bGF0aW9uIExGQjsgc3VjaCBhIGxvb2t1cCBmYWlsdXJlIGF0 IHRoYXQgcG9pbnQgaXMgYW4gaW5kaWNhdGlvbiB0aGF0IGZ1cnRoZXIgcmVzb2x1dGlvbiBpcyBu ZWVkZWQuIEZvciBhbiBleGFtcGxlIG9mIHRoaXMgYXBwcm9hY2ggcmVmZXIgdG8gc2VjdGlvbiA3 LjIgd2hpY2ggdGFsa3MgYWJvdXQgQVJQIGFuZCBtZW50aW9ucyB0aGlzIGFwcHJvYWNoLg0KDQpX YW5nUmU6IEkgcmVtZW1iZXIgSmFtYWwgbW9kaWZpZWQgdGhpcyBzZWN0aW9uLiBDYW4gQ2h1YW5o dWFuZyBhbmQgSmFtYWwgeW91IGhlbHAgdG8gcmV2aWV3IGFnYWluIHRoZSBjb250ZW50PyAgV2hl biBJIHJlYWQgaXQgYWdhaW4sIEknbSBqdXN0IGEgbGl0dGxlIHB1enpsZSBhdCB0aGUgJ2ZhaWx1 cmUnIGhlcmUgbWFpbnRpb25lZC4gDQoNCj4gbyBMRkJPdXRwdXRTZWxlY3RJbmRleCwgdGhlIExG QiBHcm91cCBvdXRwdXQgcG9ydCBpbmRleCB0byBzZWxlY3QgZG93bnN0cmVhbSBMRkIgcG9ydC4g VGhpcyBpbmRleCBleGFjdGx5IGlzIHRoZSBGcm9tUG9ydEluZGV4IGZvciB0aGUgcG9ydCBncm91 cA0KPiAiU3VjY2Vzc091dCIgaW4gdGhlIHRhYmxlIExGQlRvcG9sb2d5IG9mIEZFT2JqZWN0IExG QiBhcyBkZWZpbmVkIGluIHRoZSBOZXh0aG9wIExGQi4NCj4gLS0tLS0tLS0tLS0tLS0NCg0KSmFt YWw6IExhc3Qgc2VudGVuY2UgaXMgYSBsaXR0bGUgY29uZnVzaW5nOyBtYXliZSByZS13cml0ZSBh czoNCiIgTEZCT3V0cHV0U2VsZWN0SW5kZXggaXMgYSAxLXRvLTEgbWFwcGluZyB3aXRoIEZFT2Jq ZWN0IExGQidzIHRhYmxlDQpMRkJUb3BvbG9neShSRkMgNTgxMikNCmNvbXBvbmVudCBGcm9tUG9y dEluZGV4ICBjb3JyZXNwb25kaW5nIHRvIHRoZSBwb3J0IGdyb3VwIG1hcHBpbmcNCkZyb21MRkJJ RCBhcyBJUHY0TmV4dEhvcCBMRkIgaW5zdGFuY2UuIg0KDQpXYW5nUmU6IHVwZGF0ZWQuIA0K From wmwang2001@hotmail.com Thu Sep 22 05:57:18 2011 Return-Path: X-Original-To: forces@ietfa.amsl.com Delivered-To: forces@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id E272E21F8C52 for ; 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Thu, 22 Sep 2011 05:59:48 -0700 From: "Wang,Weiming" To: "Jamal Hadi Salim" , "Chuanhuang Li" References: <4E5F91D3.9030400@joelhalpern.com> <201109020911078756756@mail.zjgsu.edu.cn> Date: Thu, 22 Sep 2011 20:59:42 +0800 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: base64 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5931 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.6109 X-OriginalArrivalTime: 22 Sep 2011 12:59:48.0683 (UTC) FILETIME=[827D31B0:01CC7927] Cc: "Joel M. Halpern" , forces Subject: Re: [forces] comments #14 X-BeenThere: forces@ietf.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: ForCES WG mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 22 Sep 2011 12:57:19 -0000 Q2h1YW5odWFuZyBhbmQgSmFtYWwsDQoNCkknbSBvayB3aXRoIHRoZSBkZWZpbml0aW9uLiBNb3Jl b3ZlciwgYXMgeW91IG1lbnRpb25lZCwgdGhlIE1ldGFkYXRhSUQgbWF5IGhhdmUgdG8gYmUgZGVm aW5lZCBhcyBhICdjb250ZW50IGtleScuIEJ5IHVzZSBvZiB0aGUgY29udGVudCBrZXksIHdlIG1h eSBhdm9pZCB1c2luZyBpdCBpcyB0aGUgdGFibGUgaW5kZXggdG8gbG9vayB1cCB0aGUga2V5LCB3 aGljaCwgYXMgSm9lbCBwb2ludGVkLCBtYXkgbm90IGJlIGRlbnNlIGVub3VnaC4NCg0KSG93IGFi b3V0IHRoZSBzb2x1dGlvbj8NCg0KdGhrcywNCldlaW1pbmcNCg0KLS0tLS0gT3JpZ2luYWwgTWVz c2FnZSAtLS0tLSANCkZyb206ICJKYW1hbCBIYWRpIFNhbGltIiA8aGFkaUBtb2phdGF0dS5jb20+ DQpTdWJqZWN0OiBSZTogY29tbWVudHMgIzE0DQoNCg0KQ2h1YW5odWFuZywNCg0KQmFzZWQgb24g d2hhdCBKb2VsIHNhaWQgKHRoZSBzcGFyc2l0eSBpc3N1ZSkgLSBJIGFtIG9wZW4gdG8gbGVhdmlu 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IGlmIG5vbi1leGlzdGVudC4gTmV4dCB5b3UgbG9va3VwIHRoZSBzZWNvbmQgdGFibGUNCj4+Pj4g dXNpbmcgdGhlIG1ldGFkYXRhIHZhbHVlIHRvIGZpbmQgdGhlIE91dHB1dEluZGV4LiBEcm9wIGlm IG5vbi1leGlzdGVudC4NCj4+Pg0KPg0K From wmwang2001@hotmail.com Thu Sep 22 06:03:31 2011 Return-Path: X-Original-To: forces@ietfa.amsl.com Delivered-To: forces@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 1859F21F8BEF for ; Thu, 22 Sep 2011 06:03:31 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: 1.997 X-Spam-Level: * X-Spam-Status: No, score=1.997 tagged_above=-999 required=5 tests=[AWL=-0.357, BAYES_50=0.001, J_CHICKENPOX_47=0.6, MIME_BASE64_TEXT=1.753] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id tAJUucIvz9og for ; Thu, 22 Sep 2011 06:03:30 -0700 (PDT) Received: from blu0-omc2-s11.blu0.hotmail.com (blu0-omc2-s11.blu0.hotmail.com [65.55.111.86]) by ietfa.amsl.com (Postfix) with ESMTP id 81CE021F8BE8 for ; Thu, 22 Sep 2011 06:03:30 -0700 (PDT) Received: from BLU0-SMTP61 ([65.55.111.71]) by blu0-omc2-s11.blu0.hotmail.com with Microsoft SMTPSVC(6.0.3790.4675); Thu, 22 Sep 2011 06:06:01 -0700 X-Originating-IP: [60.186.207.45] X-Originating-Email: [wmwang2001@hotmail.com] Message-ID: Received: from WmwangHome ([60.186.207.45]) by BLU0-SMTP61.phx.gbl over TLS secured channel with Microsoft SMTPSVC(6.0.3790.4675); Thu, 22 Sep 2011 06:06:00 -0700 From: "Wang,Weiming" To: "Chuanhuang Li" , "Jamal Hadi Salim" References: , <201109022230296716433@mail.zjgsu.edu.cn>, <201109030901570462919@mail.zjgsu.edu.cn> Date: Thu, 22 Sep 2011 21:05:53 +0800 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: base64 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5931 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.6109 X-OriginalArrivalTime: 22 Sep 2011 13:06:01.0165 (UTC) FILETIME=[60816FD0:01CC7928] Cc: forces@ietf.org, "Joel M. Halpern" Subject: Re: [forces] comments #15 X-BeenThere: forces@ietf.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: ForCES WG mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 22 Sep 2011 13:03:31 -0000 Q2h1YW5odWFuZywNCg0KUGxzIG1ha2Ugc3VyZSB0aGlzIGlzc3VlIGNhbiBiZSBjbG9zZWQgYW5k IHRoZXJlIGlzIG5vIG5lZWQgb2YgbW9kaWZpY2F0aW9uIG90aGVyIHRoYW4gWE1MIGZpbGUuDQoN CnRoa3MsDQp3ZWltaW5nDQoNCi0tLS0tIE9yaWdpbmFsIE1lc3NhZ2UgLS0tLS0gDQpGcm9tOiAi Q2h1YW5odWFuZyBMaSIgPGNodWFuaHVhbmdfbGlAbWFpbC56amdzdS5lZHUuY24+DQoNCkhpLEph bWFsDQogICBvaywgaXQgbWFrZXMgc2Vuc2UuIFdlIGNhbiB1c2UgImFsbG93ZWRSYW5nZSIgdGFn IHRvIA0KY29uc3RyYWluIHRoZSB2YWx1ZS4gSSdsbCBtb2RpZnkgdGhlIGRlZmluaXRpb24gaW4g WE1MLiAgQXQgdGhlIHNhbWUgdGltZSwgDQp0aGUgdHlwZSBvZiBWTEFOIHByaW9yaXR5IGlzIGFs c28gbW9kaWZpZWQuIFRoYW5rcyENCg0KICAgICAgPGRhdGFUeXBlRGVmPg0KICAgICAgICAgPG5h bWU+VmxhbklEVHlwZTwvbmFtZT4NCiAgICAgICAgIDxzeW5vcHNpcz5UaGUgdHlwZSBvZiBWTEFO IElEPC9zeW5vcHNpcz4NCiAgICAgICAgIDxhdG9taWM+DQogICAgICAgICA8YmFzZVR5cGU+dWlu dDE2PC9iYXNlVHlwZT4NCiAgICAgICAgICAgPHJhbmdlUmVzdHJpY3Rpb24+DQogICAgICAgICAg ICAgIDxhbGxvd2VkUmFuZ2UgbWluPSIwIiBtYXg9IjQwOTUiLz4NCiAgICAgICAgICAgIDwvcmFu Z2VSZXN0cmljdGlvbj4NCiAgICAgICAgIDwvYXRvbWljPg0KICAgICAgICAgPGRlZmF1bHRWYWx1 ZT4wPC9kZWZhdWx0VmFsdWU+DQogICAgICAgPC9kYXRhVHlwZURlZj4NCiAgICAgICA8ZGF0YVR5 cGVEZWY+DQogICAgICAgICA8bmFtZT5WbGFuUHJpb3JpdHlUeXBlPC9uYW1lPg0KICAgICAgICAg PHN5bm9wc2lzPlRoZSB0eXBlIG9mIFZMQU4gcHJpb3JpdHkuPC9zeW5vcHNpcz4NCiAgICAgICAg IDxhdG9taWM+DQogICAgICAgICA8YmFzZVR5cGU+dWludDg8L2Jhc2VUeXBlPg0KICAgICAgICAg ICA8cmFuZ2VSZXN0cmljdGlvbj4NCiAgICAgICAgICAgICAgPGFsbG93ZWRSYW5nZSBtaW49IjAi IG1heD0iNyIvPg0KICAgICAgICAgICAgPC9yYW5nZVJlc3RyaWN0aW9uPg0KICAgICAgICAgPGRl ZmF1bHRWYWx1ZT4wPC9kZWZhdWx0VmFsdWU+ICAgICAgICAgICAgDQogICAgICAgICA8L2F0b21p Yz4NCiAgICAgIDwvZGF0YVR5cGVEZWY+IA0KDQpZb3VycywNCkNodWFuaHVhbmcgDQoNCg0KDQo9 PT09PT09IDIwMTEtMDktMDMgMDM6MzA6MjMgSmFtYWwgSGFkaSBTYWxpbSwgd3JvdGU6ID09PT09 PT0NCg0KPkNodWFuaHVhbmcsDQo+DQo+VG8gYmUgcHJlY2lzZSwgc29tZXRoaW5nIGxpa2UgdGhp cyBpbiB0aGUgYmFzZSB0eXBlczoNCj4NCj48ZGF0YVR5cGVEZWY+DQo+ICAgICA8bmFtZT52bGFu aWQ8L25hbWU+DQo+ICAgICA8c3lub3BzaXM+VGhlIFZMQU4gSUQ8L3N5bm9wc2lzPg0KPiAgICAg PGF0b21pYz4NCj4gICAgICA8YmFzZVR5cGU+dWludDE2PC9iYXNlVHlwZT4NCj4gICAgICA8cmFu Z2VSZXN0cmljdGlvbj4NCj4gICAgICAgPGFsbG93ZWRSYW5nZSBtaW49IjAiIG1heD0iNDA5NSIv Pg0KPiAgICAgIDwvcmFuZ2VSZXN0cmljdGlvbj4NCj4gICAgIDxkZWZhdWx0VmFsdWU+MDwvZGVm YXVsdFZhbHVlPg0KPiAgICA8L2F0b21pYz4NCj4gICA8L2RhdGFUeXBlRGVmPg0KPg0KPg0KPmNo ZWVycywNCj5qYW1hbA0KPk9uIEZyaSwgU2VwIDIsIDIwMTEgYXQgMTo0OSBQTSwgSmFtYWwgSGFk aSBTYWxpbSA8aGFkaUBtb2phdGF0dS5jb20+IHdyb3RlOg0KPj4gQ2h1YW5odWFuZywNCj4+DQo+ PiBZZXMsIEkgbWVhbnQgdGhlIFZsYW5JRCBzaG91bGRuJ3QgYmUgZGVmaW5lZCBhcyAidWludDMy Ii4NCj4+DQo+PiBjaGVlcnMsDQo+PiBqYW1hbA0KPj4NCj4+IE9uIEZyaSwgU2VwIDIsIDIwMTEg YXQgMTA6MzAgQU0sIENodWFuaHVhbmcgTGkNCj4+IDxjaHVhbmh1YW5nX2xpQG1haWwuempnc3Uu ZWR1LmNuPiB3cm90ZToNCj4+PiBIaSwgSmFtYWwNCj4+PiBJZiBpIGhhdmUgbG9zdCBzb21ldGhp bmcsIHBscyByZW1pbmQgbWUsIHNvcnJ5Lg0KPj4+IEl0IHNlZW1zIHdlIGhhZG4ndCBnb3QgYW4g YWdyZWVtZW50IG9uIHRoaXMgaXNzdWUuIFlvdSBqdXN0IHNheSAiVGhlIFZsYW5JRCB0eXBlIGxv b2tzIHdyb25nLiINCj4+PiBpbiB0aGUgZWUtc3VnZ2VzdGVkLnR4dC4NCj4+PiBEbyB5b3UgbWVh biB0aGUgVmxhbklEIHNob3VsZG4ndCBiZSBkZWZpbmVkIGFzICJ1aW50MzIiLCBhbmQgc2hvdWxk IGJlIGRlZmluZWQgdG8gMTIgYml0cz8NCj4+PiBJIHRoaW5rIHdlIHVzZSAidWludDMyIiBpcyBl bm91Z2gsIGFuZCAxMiBiaXRzIHR5cGUgaXMgZGlmZmljdWx0IHRvIGRlZmluZS4NCj4+Pg0KPj4+ IFlvdXJzLA0KPj4+IENodWFuaHVhbmcNCj4+Pg0KPj4+ID09PT09PT0gMjAxMS0wOS0wMSAyMToz NDo0MyBXYW5nLFdlaW1pbmcsIHdyb3RlOiA9PT09PT09DQo+Pj4NCj4+Pj5DaHVhbmh1YW5nLCBw bHMgcHJvdmlkZSByZXNwb25zZS4NCj4+Pj4NCj4+Pj5XZWltaW5nDQo+Pj4+DQo+Pj4+LS0tLS0g T3JpZ2luYWwgTWVzc2FnZSAtLS0tLQ0KPj4+PkZyb206ICJKYW1hbCBIYWRpIFNhbGltIiA8aGFk aUBtb2phdGF0dS5jb20+DQo+Pj4+DQo+Pj4+PkkgYnJvdWdodCB0aGlzIGNvbmNlcm4gaW4gdmVy c2lvbiA0IG9mIHRoZSBkcmFmdCBhbmQgaSBnb3QgYWdyZWVtZW50DQo+Pj4+PiB0byBmaXggaXQu IEkgYW0gd29ycmllZCB0aGVyZSBhcmUgb3RoZXIgdGhpbmdzIG9mIHRoZSBzYW1lIG5hdHVyZS4N Cj4+Pj4+IFBsZWFzZSBtYWtlIHN1cmUgeW91IHVwZGF0ZSBldmVyeXRoaW5nIHdlIGFncmVlIG9u IHNvIHdlIGRvbnQgaGF2ZQ0KPj4+Pj4gdGhlIHNhbWUgZGlzY3Vzc2lvbnMgYWdhaW4uDQo+Pj4+ PiBWbGFuSW5wdXRUYWJsZUVudHJ5VHlwZSBkZWZpbmVzIFZMQU5JRCBhcyAzMmJpdC4NCj4+Pj4+ IFdlIG5lZWQgdG8gdHlwZWRlZiB0aGUgVkxBTklEIGFwcHJvcHJpYXRlbHkuDQo+Pj4+Pg0KPj4+ Pj4gY2hlZXJzLA0KPj4+Pj4gamFtYWwNCj4+Pj4+DQo+Pj4NCj4+Pg0KPj4+DQo+Pg0KX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18NCmZvcmNlcyBtYWlsaW5n IGxpc3QNCmZvcmNlc0BpZXRmLm9yZw0KaHR0cHM6Ly93d3cuaWV0Zi5vcmcvbWFpbG1hbi9saXN0 aW5mby9mb3JjZXM= From chuanhuang_li@mail.zjgsu.edu.cn Thu Sep 22 18:25:05 2011 Return-Path: X-Original-To: forces@ietfa.amsl.com Delivered-To: forces@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id A95E621F8BD7 for ; Thu, 22 Sep 2011 18:25:05 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: 1.179 X-Spam-Level: * X-Spam-Status: No, score=1.179 tagged_above=-999 required=5 tests=[AWL=-1.030, BAYES_50=0.001, FROM_EXCESS_BASE64=1.456, J_CHICKENPOX_16=0.6, SARE_SUB_ENC_UTF8=0.152] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id kaVUWq3t42FM for ; Thu, 22 Sep 2011 18:25:05 -0700 (PDT) Received: from mail.zjgsu.edu.cn (ucmail.zjgsu.edu.cn [124.160.64.1]) by ietfa.amsl.com (Postfix) with SMTP id 9E47A21F8BCD for ; Thu, 22 Sep 2011 18:25:04 -0700 (PDT) Received: from RobinLee (unknown [10.20.0.167]) by mailportal (Coremail) with SMTP id rBCI85Db15bS3ntOABJ6AA--.41697S2; Fri, 23 Sep 2011 09:20:18 +0800 (CST) Date: Fri, 23 Sep 2011 09:28:02 +0800 From: "=?utf-8?B?Q2h1YW5odWFuZyBMaQ==?=" To: "=?utf-8?B?V2FuZyxXZWltaW5n?=" , "=?utf-8?B?SmFtYWwgSGFkaSBTYWxpbQ==?=" References: , , <201108171012085314855@mail.zjgsu.edu.cn>, , , Message-ID: <201109230928023733723@mail.zjgsu.edu.cn> Organization: =?utf-8?B?WmhlamlhbmcgR29uZ3NoYW5nIFVuaXZlcmNpdHk=?= X-mailer: Foxmail 6, 15, 201, 23 [cn] Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-CM-TRANSID: rBCI85Db15bS3ntOABJ6AA--.41697S2 X-Coremail-Antispam: 1Uf129KBjDUn29KB7ZKAUJUUUUUYxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJ3UbIYCTnIWIevJa73UjIFyTuYvj4RJUUUUUUUU X-CM-SenderInfo: pfkxt0xkxd0wxbolqzhdloh6pmjv3hxhgxhubq/ Cc: =?utf-8?B?Zm9yY2VzQGlldGYub3Jn?= , =?utf-8?B?Sm9lbCBNLiBIYWxwZXJu?= Subject: Re: [forces] =?utf-8?q?comments_=2311?= X-BeenThere: forces@ietf.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: ForCES WG mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 23 Sep 2011 01:25:05 -0000 >WangRe: I checked the email and I had decided to change last sentense to: >" The L3PortID, which is the ID of the Logical Output Port that is passed onto the downstream LFB instance. This ID indicates what port to the neighbor is as defined by L3. Hence, the L3PortID acts as a conceptual dispatcher. By use of the L3PortID multiple encapsulation media LFBs may follow the NextHop LFB. " >But, later I found such change might be wrong, because the MediaEncapInfoIndex seems to do the work choosing next encapsulator LFBs. As a result, I'm at a loss. Chuanhuang, pls give more detailed explanation. thks. MediaEncapInfoIndex is used to select one entry in the EncapTable , if the downstream LFB is EtherEncap. It is an input metadata of EtherEncap. But L3PortID is used in BasicMetadataDispatch to dispatch the packet to different Media encapsulation LFBs, if there are different media encapsulation LFBs. >> O MTU, the Maximum Transmission Unit for the outgoing port. >> O NextHopIPAddr, the IPv4 next hop Address. >> O MediaEncapInfoIndex, the index we pass onto the downstream LFB instance. This index is used as a search key to lookup a table (typically media encapsulation related) further downstream. In some cases, depending on implementation, the CE may set the MediaEncapInfoIndex passed downstream to a value that will fail lookup when it gets to a target encapsulation LFB; such a lookup failure at that point is an indication that further resolution is needed. For an example of this approach refer to section 7.2 which talks about ARP and mentions this approach. > >WangRe: I remember Jamal modified this section. Can Chuanhuang and Jamal you help to review again the content? When I read it again, I'm just a little puzzle at the 'failure' here maintioned. This "failure" is occured in EtherEncap. It is just the execption case: "The MediaEncapInfoIndex value of the packet is invalid and can not be allocated in the EncapTable.". In this case, the packet need to be redirected to CE to do the address resolution. Yours, Chuanhuang From chuanhuang_li@mail.zjgsu.edu.cn Thu Sep 22 18:56:14 2011 Return-Path: X-Original-To: forces@ietfa.amsl.com Delivered-To: forces@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 347EA21F8C68 for ; Thu, 22 Sep 2011 18:56:14 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: 0.342 X-Spam-Level: X-Spam-Status: No, score=0.342 tagged_above=-999 required=5 tests=[AWL=-0.118, BAYES_20=-0.74, J_CHICKENPOX_23=0.6, J_CHICKENPOX_47=0.6] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id iPAGYN6TWUTu for ; Thu, 22 Sep 2011 18:56:13 -0700 (PDT) Received: from mail.zjgsu.edu.cn (ucmail.zjgsu.edu.cn [124.160.64.1]) by ietfa.amsl.com (Postfix) with SMTP id 0EA2921F8C66 for ; Thu, 22 Sep 2011 18:56:12 -0700 (PDT) Received: from RobinLee (unknown [10.20.0.167]) by mailportal (Coremail) with SMTP id rBCI85Db8ksg5ntOABJ6AA--.41752S2; Fri, 23 Sep 2011 09:51:28 +0800 (CST) Date: Fri, 23 Sep 2011 09:59:12 +0800 From: "Chuanhuang Li" To: "Wang,Weiming" , "Jamal Hadi Salim" References: , , , , <4E5F91D3.9030400@joelhalpern.com>, <201109020911078756756@mail.zjgsu.edu.cn>, Message-ID: <201109230959120440269@mail.zjgsu.edu.cn> Organization: Zhejiang Gongshang Univercity X-mailer: Foxmail 6, 15, 201, 23 [cn] Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-CM-TRANSID: rBCI85Db8ksg5ntOABJ6AA--.41752S2 X-Coremail-Antispam: 1Uf129KBjDUn29KB7ZKAUJUUUUUYxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJ3UbIYCTnIWIevJa73UjIFyTuYvj4RJUUUUUUUU X-CM-SenderInfo: pfkxt0xkxd0wxbolqzhdloh6pmjv3hxhgxhubq/ Cc: "Joel M. Halpern" , forces Subject: Re: [forces] comments #14 X-BeenThere: forces@ietf.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: ForCES WG mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 23 Sep 2011 01:56:14 -0000 Hi, all I think there is no sparse issue, whatever format we define this table as -- array in array or just one array. We do not use metadata IDs as table indices. The table indices still are: 1,2,3,...... The metadata ID is the content of the table (one of the member of the structure.). I prefer to the array in array definition as Jamal mentioned. name: MetadataDispatchTable type: MetadataDispatchTableType array of: { MetadataID /*the ID value of the metadata.*/ array of: { MetadataValue, OutputIndex /*group output port index*/ } } we use MetadataValue as the content key in inner table,. we use the value of MetadataID as the content key in outer table. Yours, Chuanhuang ======= 2011-09-22 20:57:31 Wang,Weiming, wrote: ======= >Chuanhuang and Jamal, > >I'm ok with the definition. Moreover, as you mentioned, the MetadataID may have to be defined as a 'content key'. By use of the content key, we may avoid using it is the table index to look up the key, which, as Joel pointed, may not be dense enough. > >How about the solution? > >thks, >Weiming > >----- Original Message ----- >From: "Jamal Hadi Salim" >Subject: Re: comments #14 > > >Chuanhuang, > >Based on what Joel said (the sparsity issue) - I am open to leaving it as it was >as long as the text reflects the reasoning. >I will leave it up to the authors to make that call. > >cheers, >jamal > >On Thu, Sep 1, 2011 at 9:11 PM, Chuanhuang Li > wrote: >> Hi,All >> >> As an alternative, i think we can define MetadataDispatchTable by using table in table as Jamal said. >> Pherhaps, this definition is more convinient. >> name: MetadataDispatchTable >> type: MetadataDispatchTableType >> array of: >> { >> MetadataID /*the ID value of the metadata.*/ >> array of: >> { >> MetadataValue, >> OutputIndex /*group output port index*/ >> } >> } >> >> First, We use the ID value of the metadata to lookup the table (Note, not finding internal index, >> but the MetadataID member in the entry.), and will get a sub-table. Drop if non-existent. >> Next we lookup the sub-table using the metadata value to >> find the OutputIndex. Drop if non-existent. >> >> Yours, >> Chuanhuang >> >> ======= 2011-09-02 00:49:15 Jamal Hadi Salim, wrote: ======= >> >>>Those are good reasons - and i will be happy if you kept the >>>representation as is >>>as long as you say something of whats below in the text. >>> >>>cheers, >>>jamal >>> >>>On Thu, Sep 1, 2011 at 10:08 AM, Joel M. Halpern wrote: >>>> I am probably missing a bit of context. >>>> As a general rule, we do not use metadata IDs as table indices. The reason >>>> is that they are allocated across all the uses of metdaa, so they are not a >>>> dense set. Using them as an index produces a large, sparse, table. Not >>>> particularly good. >>>> >>>> We can use the values of a metadatum as an index if that particular set of >>>> values is designed to be dense, and start from a very small number (0, 1, or >>>> so). Some metadata are designed that way, some aren't. >>>> >>>> Yours, >>>> Joel >>>> >>>> On 9/1/2011 9:33 AM, Wang,Weiming wrote: >>>>> >>>>> Fixed all except on the following point. >>>>> Chuanhuang,pls double check the possibility to use a table in table here. >>>>> >>>>> thanks, >>>>> Weiming >>>>> ----- Original Message ----- >>>>> From: "Jamal Hadi Salim" >>>>>> >>>>>> The table contains entires of a Metadata ID, a Metadata value and an >>>>>> OutputIndex. >>>>>> >>>>>> The LFB uses all existing metadata associated with every input packet >>>>>> with their >>>>>> metadata IDs and metadata values as the content keys to look up the table >>>>>> to find out the relevant OutputIndex. >>>>>> If a packet failed lookup of the table, the packet will just be dropped >>>>>> inside the LFB. >>>>>> >>>>> Ok, now i realize my confusion was technical not editorial. It seems >>>>> sensible that >>>>> we should avoid content keys if we can get away with indexed tables. I am >>>>> sorry >>>>> if i am rehashing past discussion: Why was this not a table inside a >>>>> table indirection? >>>>> First you use the Metadata ID to index into table 1 to find the table for >>>>> that Metadata. Drop if non-existent. Next you lookup the second table >>>>> using the metadata value to find the OutputIndex. Drop if non-existent. >>>> >> From chuanhuang_li@mail.zjgsu.edu.cn Thu Sep 22 18:57:52 2011 Return-Path: X-Original-To: forces@ietfa.amsl.com Delivered-To: forces@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 2C69E21F8560 for ; Thu, 22 Sep 2011 18:57:52 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: 0.416 X-Spam-Level: X-Spam-Status: No, score=0.416 tagged_above=-999 required=5 tests=[AWL=-0.185, BAYES_50=0.001, J_CHICKENPOX_47=0.6] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id PSpjuQ8KrlR1 for ; Thu, 22 Sep 2011 18:57:51 -0700 (PDT) Received: from mail.zjgsu.edu.cn (ucmail.zjgsu.edu.cn [124.160.64.1]) by ietfa.amsl.com (Postfix) with SMTP id 19E4821F8558 for ; Thu, 22 Sep 2011 18:57:50 -0700 (PDT) Received: from RobinLee (unknown [10.20.0.167]) by mailportal (Coremail) with SMTP id rBCI85Cbk0qC5ntOABJ6AA--.41754S2; Fri, 23 Sep 2011 09:53:07 +0800 (CST) Date: Fri, 23 Sep 2011 10:00:50 +0800 From: "Chuanhuang Li" To: "Wang,Weiming" , "Jamal Hadi Salim" References: , <201109022230296716433@mail.zjgsu.edu.cn>, , <201109030901570462919@mail.zjgsu.edu.cn>, Message-ID: <201109231000506385553@mail.zjgsu.edu.cn> Organization: Zhejiang Gongshang Univercity X-mailer: Foxmail 6, 15, 201, 23 [cn] Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-CM-TRANSID: rBCI85Cbk0qC5ntOABJ6AA--.41754S2 X-Coremail-Antispam: 1Uf129KBjDUn29KB7ZKAUJUUUUUYxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJ3UbIYCTnIWIevJa73UjIFyTuYvj4RJUUUUUUUU X-CM-SenderInfo: pfkxt0xkxd0wxbolqzhdloh6pmjv3hxhgxhubq/ Cc: "forces@ietf.org" , "Joel M. Halpern" Subject: Re: [forces] comments #15 X-BeenThere: forces@ietf.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: ForCES WG mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 23 Sep 2011 01:57:52 -0000 Yes, there is no need of modification in text. Yours, Chuanhuang ======= 2011-09-22 21:03:43 Wang,Weiming, wrote: ======= >Chuanhuang, > >Pls make sure this issue can be closed and there is no need of modification other than XML file. > >thks, >weiming > >----- Original Message ----- >From: "Chuanhuang Li" > >Hi,Jamal > ok, it makes sense. We can use "allowedRange" tag to >constrain the value. I'll modify the definition in XML. At the same time, >the type of VLAN priority is also modified. Thanks! > > > VlanIDType > The type of VLAN ID > > uint16 > > > > > 0 > > > VlanPriorityType > The type of VLAN priority. > > uint8 > > > > 0 > > > >Yours, >Chuanhuang > > > >======= 2011-09-03 03:30:23 Jamal Hadi Salim, wrote: ======= > >>Chuanhuang, >> >>To be precise, something like this in the base types: >> >> >> vlanid >> The VLAN ID >> >> uint16 >> >> >> >> 0 >> >> >> >> >>cheers, >>jamal >>On Fri, Sep 2, 2011 at 1:49 PM, Jamal Hadi Salim wrote: >>> Chuanhuang, >>> >>> Yes, I meant the VlanID shouldn't be defined as "uint32". >>> >>> cheers, >>> jamal >>> >>> On Fri, Sep 2, 2011 at 10:30 AM, Chuanhuang Li >>> wrote: >>>> Hi, Jamal >>>> If i have lost something, pls remind me, sorry. >>>> It seems we hadn't got an agreement on this issue. You just say "The VlanID type looks wrong." >>>> in the ee-suggested.txt. >>>> Do you mean the VlanID shouldn't be defined as "uint32", and should be defined to 12 bits? >>>> I think we use "uint32" is enough, and 12 bits type is difficult to define. >>>> >>>> Yours, >>>> Chuanhuang >>>> >>>> ======= 2011-09-01 21:34:43 Wang,Weiming, wrote: ======= >>>> >>>>>Chuanhuang, pls provide response. >>>>> >>>>>Weiming >>>>> >>>>>----- Original Message ----- >>>>>From: "Jamal Hadi Salim" >>>>> >>>>>>I brought this concern in version 4 of the draft and i got agreement >>>>>> to fix it. I am worried there are other things of the same nature. >>>>>> Please make sure you update everything we agree on so we dont have >>>>>> the same discussions again. >>>>>> VlanInputTableEntryType defines VLANID as 32bit. >>>>>> We need to typedef the VLANID appropriately. >>>>>> >>>>>> cheers, >>>>>> jamal >>>>>> >>>> >>>> >>>> >>> >_______________________________________________ >forces mailing list >forces@ietf.org >https://www.ietf.org/mailman/listinfo/forces From wmwang2001@hotmail.com Thu Sep 22 19:42:59 2011 Return-Path: X-Original-To: forces@ietfa.amsl.com Delivered-To: forces@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id D2EBF21F8B91 for ; Thu, 22 Sep 2011 19:42:59 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: 2.312 X-Spam-Level: ** X-Spam-Status: No, score=2.312 tagged_above=-999 required=5 tests=[AWL=-0.642, BAYES_50=0.001, J_CHICKENPOX_23=0.6, J_CHICKENPOX_47=0.6, MIME_BASE64_TEXT=1.753] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id nGvtcE30UzCI for ; Thu, 22 Sep 2011 19:42:59 -0700 (PDT) Received: from blu0-omc2-s18.blu0.hotmail.com (blu0-omc2-s18.blu0.hotmail.com [65.55.111.93]) by ietfa.amsl.com (Postfix) with ESMTP id 1DAAF21F8B90 for ; Thu, 22 Sep 2011 19:42:59 -0700 (PDT) Received: from BLU0-SMTP449 ([65.55.111.72]) by blu0-omc2-s18.blu0.hotmail.com with Microsoft SMTPSVC(6.0.3790.4675); Thu, 22 Sep 2011 19:45:32 -0700 X-Originating-IP: [60.186.207.45] X-Originating-Email: [wmwang2001@hotmail.com] Message-ID: Received: from WmwangHome ([60.186.207.45]) by BLU0-SMTP449.phx.gbl over TLS secured channel with Microsoft SMTPSVC(6.0.3790.4675); Thu, 22 Sep 2011 19:45:30 -0700 From: "Wang,Weiming" To: "Chuanhuang Li" , "Jamal Hadi Salim" References: , , , , <4E5F91D3.9030400@joelhalpern.com>, <201109020911078756756@mail.zjgsu.edu.cn>, <201109230959120440269@mail.zjgsu.edu.cn> Date: Fri, 23 Sep 2011 10:45:23 +0800 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: base64 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5931 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.6109 X-OriginalArrivalTime: 23 Sep 2011 02:45:30.0754 (UTC) FILETIME=[DBDD4E20:01CC799A] Cc: "Joel M. Halpern" , forces Subject: Re: [forces] comments #14 X-BeenThere: forces@ietf.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: ForCES WG mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 23 Sep 2011 02:42:59 -0000 UGxzIHByb3ZpZGUgYSBmdWxsIFhNTCBkZWZpbml0aW9uIHNvIHRoYXQgd2UgY2FuIHJldmlldyBp dCBhZ2FpbiBhbmQgd3JpdGUgdGhlIHRleHQuDQoNCnRoa3MsDQpXZWltaW5nDQoNCi0tLS0tIE9y aWdpbmFsIE1lc3NhZ2UgLS0tLS0gDQpGcm9tOiAiQ2h1YW5odWFuZyBMaSIgPGNodWFuaHVhbmdf bGlAbWFpbC56amdzdS5lZHUuY24+DQpTdWJqZWN0OiBSZTogY29tbWVudHMgIzE0DQoNCg0KPiBI aSwgYWxsDQo+IEkgdGhpbmsgdGhlcmUgaXMgbm8gc3BhcnNlIGlzc3VlLCB3aGF0ZXZlciBmb3Jt YXQgd2UgZGVmaW5lIHRoaXMgdGFibGUgYXMgLS0gDQo+IGFycmF5IGluIGFycmF5IG9yIGp1c3Qg b25lIGFycmF5LiBXZSBkbyBub3QgdXNlIG1ldGFkYXRhIElEcyBhcyB0YWJsZSBpbmRpY2VzLg0K PiBUaGUgdGFibGUgaW5kaWNlcyBzdGlsbCBhcmU6IDEsMiwzLC4uLi4uLiBUaGUgbWV0YWRhdGEg SUQgaXMgdGhlIGNvbnRlbnQgb2YgdGhlIA0KPiB0YWJsZSAob25lIG9mIHRoZSBtZW1iZXIgb2Yg 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Return-Path: X-Original-To: forces@ietfa.amsl.com Delivered-To: forces@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 3314621F8B91 for ; Thu, 22 Sep 2011 19:43:28 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: 0.122 X-Spam-Level: X-Spam-Status: No, score=0.122 tagged_above=-999 required=5 tests=[AWL=0.121, BAYES_50=0.001] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id BMqhgHIwaTa5 for ; Thu, 22 Sep 2011 19:43:27 -0700 (PDT) Received: from mail.zjgsu.edu.cn (ucmail.zjgsu.edu.cn [124.160.64.1]) by ietfa.amsl.com (Postfix) with SMTP id 167E621F8B90 for ; Thu, 22 Sep 2011 19:43:26 -0700 (PDT) Received: from RobinLee (unknown [10.20.0.167]) by mailportal (Coremail) with SMTP id rBCI85Dbopgy8XtOABJ6AA--.41843S2; Fri, 23 Sep 2011 10:38:42 +0800 (CST) Date: Fri, 23 Sep 2011 10:46:26 +0800 From: "Chuanhuang Li" To: "Jamal Hadi Salim" , "forces" Message-ID: <201109231046266857542@mail.zjgsu.edu.cn> Organization: Zhejiang Gongshang Univercity X-mailer: Foxmail 6, 15, 201, 23 [cn] Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-CM-TRANSID: rBCI85Dbopgy8XtOABJ6AA--.41843S2 X-Coremail-Antispam: 1Uf129KBjDUn29KB7ZKAUJUUUUUYxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJ3UbIYCTnIWIevJa73UjIFyTuYvj4RJUUUUUUUU X-CM-SenderInfo: pfkxt0xkxd0wxbolqzhdloh6pmjv3hxhgxhubq/ Cc: "Joel M. Halpern" Subject: Re: [forces] LFB lib 05 version comments #1 X-BeenThere: forces@ietf.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: ForCES WG mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 23 Sep 2011 02:43:28 -0000 Hi,Jamal and Joel >b) InvalidIPv4SrcAddrCasexxx >I believe there are proper terms for these terms. Can we find >the proper terms and replace these generic terms? >Example appropriate terms are "martian" and "bogon" packets. Forgot dealing with this issue, sorry. There are many error cases which are revalent to the invalid source or destination address. "Martian" and "Bogon" terms are not enough to differentiate them. I propose we simplify the definition of these errors. We just generalize them in two classes: InvalidDstAddr, InvalidSrcAddr. That is, we only define two ValidateErrorID to describe these error cases. The same as ValidateErrorID. There are many execption cases which are revalent to the source or destination address. We simplify the definiton: DstAddrException, SrcAddrException What's your opinion? Yours, Chuanhuang From wmwang2001@hotmail.com Thu Sep 22 20:23:39 2011 Return-Path: X-Original-To: forces@ietfa.amsl.com Delivered-To: forces@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 0CBDE11E8094 for ; Thu, 22 Sep 2011 20:23:39 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: 1.761 X-Spam-Level: * X-Spam-Status: No, score=1.761 tagged_above=-999 required=5 tests=[AWL=-0.040, BAYES_50=0.001, J_CHICKENPOX_16=0.6, J_CHICKENPOX_17=0.6, J_CHICKENPOX_33=0.6] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id og7+Qpd+xw5A for ; Thu, 22 Sep 2011 20:23:38 -0700 (PDT) Received: from blu0-omc2-s14.blu0.hotmail.com (blu0-omc2-s14.blu0.hotmail.com [65.55.111.89]) by ietfa.amsl.com (Postfix) with ESMTP id 53D6111E808E for ; Thu, 22 Sep 2011 20:23:38 -0700 (PDT) Received: from BLU0-SMTP425 ([65.55.111.71]) by blu0-omc2-s14.blu0.hotmail.com with Microsoft SMTPSVC(6.0.3790.4675); Thu, 22 Sep 2011 20:26:11 -0700 X-Originating-IP: [60.186.207.45] X-Originating-Email: [wmwang2001@hotmail.com] Message-ID: Received: from WmwangHome ([60.186.207.45]) by BLU0-SMTP425.phx.gbl over TLS secured channel with Microsoft SMTPSVC(6.0.3790.4675); Thu, 22 Sep 2011 20:26:09 -0700 From: "Wang,Weiming" To: "Chuanhuang Li" , "Jamal Hadi Salim" References: , , <201108171012085314855@mail.zjgsu.edu.cn>, , , <201109230928023733723@mail.zjgsu.edu.cn> Date: Fri, 23 Sep 2011 11:26:04 +0800 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5931 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.6109 X-OriginalArrivalTime: 23 Sep 2011 03:26:10.0203 (UTC) FILETIME=[89E3AEB0:01CC79A0] Cc: forces@ietf.org, "Joel M. Halpern" Subject: Re: [forces] comments #11 X-BeenThere: forces@ietf.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: ForCES WG mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 23 Sep 2011 03:23:39 -0000 DQo+ID5XYW5nUmU6IEkgY2hlY2tlZCB0aGUgZW1haWwgYW5kIEkgaGFkIGRlY2lkZWQgdG8gY2hh bmdlIGxhc3Qgc2VudGVuc2UgdG86IA0KPj4iIFRoZSBMM1BvcnRJRCwgd2hpY2ggaXMgdGhlIElE IG9mIHRoZSBMb2dpY2FsIE91dHB1dCBQb3J0IHRoYXQgaXMgcGFzc2VkIG9udG8gdGhlIGRvd25z dHJlYW0gTEZCIGluc3RhbmNlLiBUaGlzIElEIGluZGljYXRlcyB3aGF0IHBvcnQgdG8gdGhlIG5l aWdoYm9yIGlzIGFzIGRlZmluZWQgYnkgTDMuIEhlbmNlLCB0aGUgTDNQb3J0SUQgYWN0cyBhcyBh IGNvbmNlcHR1YWwgZGlzcGF0Y2hlci4gQnkgdXNlIG9mIHRoZSBMM1BvcnRJRCBtdWx0aXBsZSBl bmNhcHN1bGF0aW9uIG1lZGlhIExGQnMgbWF5IGZvbGxvdyB0aGUgTmV4dEhvcCBMRkIuICINCj4+ QnV0LCBsYXRlciBJIGZvdW5kIHN1Y2ggY2hhbmdlIG1pZ2h0IGJlIHdyb25nLCBiZWNhdXNlIHRo ZSBNZWRpYUVuY2FwSW5mb0luZGV4IHNlZW1zIHRvIGRvIHRoZSB3b3JrIGNob29zaW5nIG5leHQg 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IA0KPiBpbnZhbGlkIGFuZCBjYW4gbm90IGJlIGFsbG9jYXRlZCBpbiB0aGUgRW5jYXBUYWJsZS4i LiBJbiB0aGlzIGNhc2UsIHRoZSBwYWNrZXQgbmVlZCB0byBiZSByZWRpcmVjdGVkIHRvIENFIHRv IGRvIHRoZSANCj4gYWRkcmVzcyByZXNvbHV0aW9uLiANCkFjY29yZGluZ2x5LCBJJyB0byBtb2Rp ZnkgdGhlIHRleHQgZm9yIE1lZGlhRW5jYXBJbmZvSW5kZXggYXMgYmVsb3c6IA0KLS0tDQpNZWRp YUVuY2FwSW5mb0luZGV4LCB0aGUgaW5kZXggd2UgcGFzcyBvbnRvIHRoZSBkb3duc3RyZWFtIGVu Y2Fwc3VsYXRpb24gTEZCIGluc3RhbmNlIGFuZCB0aGF0IGlzIHVzZWQgdGhlcmUgYXMgYSBzZWFy Y2gga2V5IHRvIGxvb2t1cCBhIHRhYmxlICh0eXBpY2FsbHkgbWVkaWEgZW5jYXBzdWxhdGlvbiBy ZWxhdGVkKSBmb3IgZnVydGhlciBlbmNhcHN1bGF0aW9uIGluZm9ybWF0aW9uLiBOb3RlIHRoYXQg YW4gZW5jYXBzdWxhdGlvbiBMRkIgaW5zdGFuY2UgbWF5IG5vdCBkaXJlY3RseSBmb2xsb3cgdGhl IE5leHRIb3AgTEZCLCBidXQgdGhlIGluZGV4IGlzIHBhc3NlZCBhcyBhIG1ldGFkYXRhIGFzc29j aWF0ZWQsIGFzIHN1Y2ggYW4gZW5jYXBzdWxhdGlvbiBMRkIgaW5zdGFuY2UgZXZlbiBmdXJ0aGVy IGRvd25zdHJlYW0gdG8gdGhlIE5leHRIb3AgTEZCIGNhbiBzdGlsbCB1c2UgdGhlIGluZGV4LiBJ biBzb21lIGNhc2VzLCBkZXBlbmRpbmcgb24gaW1wbGVtZW50YXRpb24sIHRoZSBDRSBtYXkgc2V0 IHRoZSBNZWRpYUVuY2FwSW5mb0luZGV4IHBhc3NlZCBkb3duc3RyZWFtIHRvIGEgdmFsdWUgdGhh dCB3aWxsIGZhaWwgbG9va3VwIHdoZW4gaXQgZ2V0cyB0byBhIHRhcmdldCBlbmNhcHN1bGF0aW9u IExGQjsgc3VjaCBhIGxvb2t1cCBmYWlsdXJlIGF0IHRoYXQgcG9pbnQgaXMgYW4gaW5kaWNhdGlv biB0aGF0IGZ1cnRoZXIgcmVzb2x1dGlvbiBpcyBuZWVkZWQuIEZvciBhbiBleGFtcGxlIG9mIHRo aXMgYXBwcm9hY2ggcmVmZXIgdG8gc2VjdGlvbiA3LjIgd2hpY2ggdGFsa3MgYWJvdXQgQVJQIGFu ZCBtZW50aW9ucyB0aGlzIGFwcHJvYWNoLg0KLS0tLS0tLS0tDQoNCkphbWFsIGFzIHdlbGwsIHBs cyBkb3VibGUgY2hlY2sgdGhlIHRleHQuIA0KDQp0aG5rcywNCldlaW1pbmcNCg0KIA== From chuanhuang_li@mail.zjgsu.edu.cn Thu Sep 22 23:08:49 2011 Return-Path: X-Original-To: forces@ietfa.amsl.com Delivered-To: forces@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id E6AF021F8ACA for ; Thu, 22 Sep 2011 23:08:49 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -0.581 X-Spam-Level: X-Spam-Status: No, score=-0.581 tagged_above=-999 required=5 tests=[AWL=0.818, BAYES_00=-2.599, J_CHICKENPOX_23=0.6, J_CHICKENPOX_47=0.6] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id SJiy7UFGrbrm for ; Thu, 22 Sep 2011 23:08:49 -0700 (PDT) Received: from mail.zjgsu.edu.cn (ucmail.zjgsu.edu.cn [124.160.64.1]) by ietfa.amsl.com (Postfix) with SMTP id 39E5F21F8AC9 for ; Thu, 22 Sep 2011 23:08:44 -0700 (PDT) Received: from RobinLee (unknown [10.20.0.167]) by mailportal (Coremail) with SMTP id rBCI85DrTEhOIXxOABJ6AA--.42293S2; Fri, 23 Sep 2011 14:03:58 +0800 (CST) Date: Fri, 23 Sep 2011 14:11:44 +0800 From: "Chuanhuang Li" To: "Wang,Weiming" , "Jamal Hadi Salim" References: , , , , <4E5F91D3.9030400@joelhalpern.com>, <201109020911078756756@mail.zjgsu.edu.cn>, , <201109230959120440269@mail.zjgsu.edu.cn> Message-ID: <201109231411441855361@mail.zjgsu.edu.cn> Organization: Zhejiang Gongshang Univercity X-mailer: Foxmail 6, 15, 201, 23 [cn] Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-CM-TRANSID: rBCI85DrTEhOIXxOABJ6AA--.42293S2 X-Coremail-Antispam: 1Uf129KBjDUn29KB7ZKAUJUUUUUYxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJ3UbIYCTnIWIevJa73UjIFyTuYvj4RJUUUUUUUU X-CM-SenderInfo: pfkxt0xkxd0wxbolqzhdloh6pmjv3hxhgxhubq/ Cc: "Joel M. Halpern" , forces Subject: Re: [forces] comments #14 X-BeenThere: forces@ietf.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: ForCES WG mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 23 Sep 2011 06:08:50 -0000 Array in array, the XML defined as follows: *********************** MetadataDispatchSubtableEntryType Entry type for the subtable of metadata dispatch table. MetadataValue metadata value. uint32 OutputIndex group output port index. uint32 MetadataDispatchSubtableType Type for the subtable of metadata dispatch table. MetadataDispatchSubtableEntryType MetadataValue MetadataDispatchType Entry type for metadata dispatch table. MetadataID metadata ID uint32 MetadataDispatchSubtable Metadata dispatch table. MetadataDispatchSubtableType MetadataDispatchTableType Type for Metadata dispatch table. MetadataDispatchType MetadataID Yours, Chuanhuang ======= 2011-09-23 10:43:15 Wang,Weiming, wrote: ======= >Pls provide a full XML definition so that we can review it again and write the text. > >thks, >Weiming > >----- Original Message ----- >From: "Chuanhuang Li" >Subject: Re: comments #14 > > >> Hi, all >> I think there is no sparse issue, whatever format we define this table as -- >> array in array or just one array. We do not use metadata IDs as table indices. >> The table indices still are: 1,2,3,...... The metadata ID is the content of the >> table (one of the member of the structure.). I prefer to the array in array definition >> as Jamal mentioned. >> >> name: MetadataDispatchTable >> type: MetadataDispatchTableType >> array of: >> { >> MetadataID /*the ID value of the metadata.*/ >> array of: >> { >> MetadataValue, >> OutputIndex /*group output port index*/ >> } >> } >> we use MetadataValue as the content key in inner table,. >> we use the value of MetadataID as the content key in outer table. >> >> Yours, >> Chuanhuang >> >> ======= 2011-09-22 20:57:31 Wang,Weiming, wrote: ======= >> >>>Chuanhuang and Jamal, >>> >>>I'm ok with the definition. Moreover, as you mentioned, the MetadataID may have to be defined as a 'content key'. By use of the content key, we may avoid using it is the table index to look up the key, which, as Joel pointed, may not be dense enough. >>> >>>How about the solution? >>> >>>thks, >>>Weiming >>> >>>----- Original Message ----- >>>From: "Jamal Hadi Salim" >>>Subject: Re: comments #14 >>> >>> >>>Chuanhuang, >>> >>>Based on what Joel said (the sparsity issue) - I am open to leaving it as it was >>>as long as the text reflects the reasoning. >>>I will leave it up to the authors to make that call. >>> >>>cheers, >>>jamal >>> >>>On Thu, Sep 1, 2011 at 9:11 PM, Chuanhuang Li >>> wrote: >>>> Hi,All >>>> >>>> As an alternative, i think we can define MetadataDispatchTable by using table in table as Jamal said. >>>> Pherhaps, this definition is more convinient. >>>> name: MetadataDispatchTable >>>> type: MetadataDispatchTableType >>>> array of: >>>> { >>>> MetadataID /*the ID value of the metadata.*/ >>>> array of: >>>> { >>>> MetadataValue, >>>> OutputIndex /*group output port index*/ >>>> } >>>> } >>>> >>>> First, We use the ID value of the metadata to lookup the table (Note, not finding internal index, >>>> but the MetadataID member in the entry.), and will get a sub-table. Drop if non-existent. >>>> Next we lookup the sub-table using the metadata value to >>>> find the OutputIndex. Drop if non-existent. >>>> >>>> Yours, >>>> Chuanhuang >>>> >>>> ======= 2011-09-02 00:49:15 Jamal Hadi Salim, wrote: ======= >>>> >>>>>Those are good reasons - and i will be happy if you kept the >>>>>representation as is >>>>>as long as you say something of whats below in the text. >>>>> >>>>>cheers, >>>>>jamal >>>>> >>>>>On Thu, Sep 1, 2011 at 10:08 AM, Joel M. Halpern wrote: >>>>>> I am probably missing a bit of context. >>>>>> As a general rule, we do not use metadata IDs as table indices. The reason >>>>>> is that they are allocated across all the uses of metdaa, so they are not a >>>>>> dense set. Using them as an index produces a large, sparse, table. Not >>>>>> particularly good. >>>>>> >>>>>> We can use the values of a metadatum as an index if that particular set of >>>>>> values is designed to be dense, and start from a very small number (0, 1, or >>>>>> so). Some metadata are designed that way, some aren't. >>>>>> >>>>>> Yours, >>>>>> Joel >>>>>> >>>>>> On 9/1/2011 9:33 AM, Wang,Weiming wrote: >>>>>>> >>>>>>> Fixed all except on the following point. >>>>>>> Chuanhuang,pls double check the possibility to use a table in table here. >>>>>>> >>>>>>> thanks, >>>>>>> Weiming >>>>>>> ----- Original Message ----- >>>>>>> From: "Jamal Hadi Salim" >>>>>>>> >>>>>>>> The table contains entires of a Metadata ID, a Metadata value and an >>>>>>>> OutputIndex. >>>>>>>> >>>>>>>> The LFB uses all existing metadata associated with every input packet >>>>>>>> with their >>>>>>>> metadata IDs and metadata values as the content keys to look up the table >>>>>>>> to find out the relevant OutputIndex. >>>>>>>> If a packet failed lookup of the table, the packet will just be dropped >>>>>>>> inside the LFB. >>>>>>>> >>>>>>> Ok, now i realize my confusion was technical not editorial. It seems >>>>>>> sensible that >>>>>>> we should avoid content keys if we can get away with indexed tables. I am >>>>>>> sorry >>>>>>> if i am rehashing past discussion: Why was this not a table inside a >>>>>>> table indirection? >>>>>>> First you use the Metadata ID to index into table 1 to find the table for >>>>>>> that Metadata. Drop if non-existent. Next you lookup the second table >>>>>>> using the metadata value to find the OutputIndex. Drop if non-existent. >>>>>> >>>> >> >> >> From hadi@mojatatu.com Fri Sep 23 08:14:51 2011 Return-Path: X-Original-To: forces@ietfa.amsl.com Delivered-To: forces@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id E7E7221F8CC6 for ; Fri, 23 Sep 2011 08:14:50 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -102.309 X-Spam-Level: X-Spam-Status: No, score=-102.309 tagged_above=-999 required=5 tests=[AWL=0.068, BAYES_00=-2.599, FM_FORGED_GMAIL=0.622, J_CHICKENPOX_25=0.6, RCVD_IN_DNSWL_LOW=-1, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id qy+eZpq-64PT for ; Fri, 23 Sep 2011 08:14:50 -0700 (PDT) Received: from mail-fx0-f44.google.com (mail-fx0-f44.google.com [209.85.161.44]) by ietfa.amsl.com (Postfix) with ESMTP id 3A5A221F8CA7 for ; Fri, 23 Sep 2011 08:14:50 -0700 (PDT) Received: by fxd18 with SMTP id 18so4149924fxd.31 for ; Fri, 23 Sep 2011 08:17:24 -0700 (PDT) Received: by 10.223.29.21 with SMTP id o21mr5266676fac.4.1316791044085; Fri, 23 Sep 2011 08:17:24 -0700 (PDT) MIME-Version: 1.0 Received: by 10.223.114.11 with HTTP; Fri, 23 Sep 2011 08:17:04 -0700 (PDT) In-Reply-To: <201109231046266857542@mail.zjgsu.edu.cn> References: <201109231046266857542@mail.zjgsu.edu.cn> From: Jamal Hadi Salim Date: Fri, 23 Sep 2011 11:17:04 -0400 Message-ID: To: Chuanhuang Li Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Cc: "Joel M. Halpern" , forces Subject: Re: [forces] LFB lib 05 version comments #1 X-BeenThere: forces@ietf.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: ForCES WG mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 23 Sep 2011 15:14:51 -0000 Hi Chuanhuang, If nothing matches in any IETF terminology then I am fine with the suggestion. cheers, jamal On Thu, Sep 22, 2011 at 10:46 PM, Chuanhuang Li wrote: > Hi,Jamal and Joel > >>b) InvalidIPv4SrcAddrCasexxx >>I believe there are proper terms for these terms. Can we find >>the proper terms and replace these generic terms? >>Example appropriate terms are "martian" and "bogon" packets. > Forgot dealing with this issue, sorry. > There are many error cases which are revalent to the invalid source or > destination address. =A0"Martian" and "Bogon" terms are not enough to > differentiate them. I propose we simplify the definition of these errors. > We just generalize them in two classes: InvalidDstAddr, InvalidSrcAddr. > That is, we only define two ValidateErrorID to describe these error cases= . > > The same as ValidateErrorID. There are many execption cases which are rev= alent to > the source or destination address. > We simplify the definiton: DstAddrException, SrcAddrException > > What's your opinion? > > Yours, > Chuanhuang > > > From hadi@mojatatu.com Fri Sep 23 08:22:06 2011 Return-Path: X-Original-To: forces@ietfa.amsl.com Delivered-To: forces@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id E354E21F8560 for ; Fri, 23 Sep 2011 08:22:06 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -101.41 X-Spam-Level: X-Spam-Status: No, score=-101.41 tagged_above=-999 required=5 tests=[AWL=-0.833, BAYES_00=-2.599, FM_FORGED_GMAIL=0.622, J_CHICKENPOX_16=0.6, J_CHICKENPOX_17=0.6, J_CHICKENPOX_33=0.6, J_CHICKENPOX_47=0.6, RCVD_IN_DNSWL_LOW=-1, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id TCQ9T3hV5IjD for ; Fri, 23 Sep 2011 08:22:06 -0700 (PDT) Received: from mail-fx0-f44.google.com (mail-fx0-f44.google.com [209.85.161.44]) by ietfa.amsl.com (Postfix) with ESMTP id 3AA0E21F8551 for ; Fri, 23 Sep 2011 08:22:06 -0700 (PDT) Received: by fxd18 with SMTP id 18so4156441fxd.31 for ; Fri, 23 Sep 2011 08:24:40 -0700 (PDT) Received: by 10.223.44.89 with SMTP id z25mr5233186fae.42.1316791480175; Fri, 23 Sep 2011 08:24:40 -0700 (PDT) MIME-Version: 1.0 Received: by 10.223.114.11 with HTTP; Fri, 23 Sep 2011 08:24:20 -0700 (PDT) In-Reply-To: References: <201108171012085314855@mail.zjgsu.edu.cn> <201109230928023733723@mail.zjgsu.edu.cn> From: Jamal Hadi Salim Date: Fri, 23 Sep 2011 11:24:20 -0400 Message-ID: To: "Wang,Weiming" Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Cc: forces@ietf.org, Chuanhuang Li , "Joel M. Halpern" Subject: Re: [forces] comments #11 X-BeenThere: forces@ietf.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: ForCES WG mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 23 Sep 2011 15:22:07 -0000 Hi Weiming, Just a small editorial comment below: On Thu, Sep 22, 2011 at 11:26 PM, Wang,Weiming wro= te: > The L3PortID, which is the ID of the Logical Output Port that is passed o= nto the >downstream LFB instance. This ID indicates what port to the neighb= or is as defined by L3. >Usually this ID is used for the NextHop LFB to dis= tinguish packets that need different L2 >encapsulating. For instance, some = packets may require general Ethernet encapsulation >while others may requir= e various types of tunnel encapsulations. In such case, different >L3PortID= s are assigned to the packets and are as metadata passed to downstream LFB.= >A BasicMetadataDispatch LFB(See Section 5.5.1) may have to be applied as = the >downstream LFB so as to dispatch packets to different encapsulation LF= Bs according to >the L3PortIDs. to: The L3PortID is the ID of the Logical Output Port that is passed to downstream LFB instances. This ID indicates a port to the L3 neighbor. Usually this ID is used by the NextHop LFB to distinguish packets that need different L2 encapsulating= . For instance, some packets may require general Ethernet encapsulation while others may require various types of tunnel encapsulations. In such case, different L3PortIDs are assigned to the packets and are passed as metadata to downstr= eam LFB. A BasicMetadataDispatch LFB(See Section 5.5.1) may have to be applied as the downstream LFB so as to dispatch packets to different encapsulation LFBs according to the L3PortIDs. cheers, jamal From hadi@mojatatu.com Fri Sep 23 08:24:17 2011 Return-Path: X-Original-To: forces@ietfa.amsl.com Delivered-To: forces@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id DE4F121F8C7D for ; Fri, 23 Sep 2011 08:24:17 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -101.993 X-Spam-Level: X-Spam-Status: No, score=-101.993 tagged_above=-999 required=5 tests=[AWL=-0.216, BAYES_00=-2.599, FM_FORGED_GMAIL=0.622, J_CHICKENPOX_23=0.6, J_CHICKENPOX_47=0.6, RCVD_IN_DNSWL_LOW=-1, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id AbNMNyKN-+GA for ; Fri, 23 Sep 2011 08:24:17 -0700 (PDT) Received: from mail-fx0-f44.google.com (mail-fx0-f44.google.com [209.85.161.44]) by ietfa.amsl.com (Postfix) with ESMTP id 41DDD21F8C18 for ; Fri, 23 Sep 2011 08:24:10 -0700 (PDT) Received: by fxd18 with SMTP id 18so4158297fxd.31 for ; Fri, 23 Sep 2011 08:26:44 -0700 (PDT) Received: by 10.223.44.89 with SMTP id z25mr5236128fae.42.1316791604218; Fri, 23 Sep 2011 08:26:44 -0700 (PDT) MIME-Version: 1.0 Received: by 10.223.114.11 with HTTP; Fri, 23 Sep 2011 08:26:24 -0700 (PDT) In-Reply-To: <201109231411441855361@mail.zjgsu.edu.cn> References: <4E5F91D3.9030400@joelhalpern.com> <201109020911078756756@mail.zjgsu.edu.cn> <201109230959120440269@mail.zjgsu.edu.cn> <201109231411441855361@mail.zjgsu.edu.cn> From: Jamal Hadi Salim Date: Fri, 23 Sep 2011 11:26:24 -0400 Message-ID: To: Chuanhuang Li Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Cc: "Joel M. Halpern" , forces Subject: Re: [forces] comments #14 X-BeenThere: forces@ietf.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: ForCES WG mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 23 Sep 2011 15:24:18 -0000 I will let the authors make the call on whats best ... My take was on clarity for the reader cheers, jamal On Fri, Sep 23, 2011 at 2:11 AM, Chuanhuang Li wrote: > =A0Array in array, the XML defined as follows: > > *********************** > =A0 =A0 > =A0 =A0 =A0 =A0 MetadataDispatchSubtableEntryType > =A0 =A0 =A0 =A0 Entry type for the subtable of metadata dispatc= h table. > =A0 =A0 =A0 =A0 > =A0 =A0 =A0 =A0 =A0 =A0 > =A0 =A0 =A0 =A0 =A0 =A0 =A0 MetadataValue > =A0 =A0 =A0 =A0 =A0 =A0 =A0 metadata value. > =A0 =A0 =A0 =A0 =A0 =A0 =A0 uint32 > =A0 =A0 =A0 =A0 =A0 =A0 > =A0 =A0 =A0 =A0 =A0 =A0 > =A0 =A0 =A0 =A0 =A0 =A0 =A0 OutputIndex > =A0 =A0 =A0 =A0 =A0 =A0 =A0 group output port index. > =A0 =A0 =A0 =A0 =A0 =A0 =A0 uint32 > =A0 =A0 =A0 =A0 =A0 =A0 > =A0 =A0 =A0 =A0 > =A0 =A0 =A0 > > =A0 =A0 =A0 > =A0 =A0 =A0 =A0 MetadataDispatchSubtableType > =A0 =A0 =A0 =A0 Type for the subtable of metadata dispatch tabl= e. > =A0 =A0 =A0 =A0 > =A0 =A0 =A0 =A0 =A0 MetadataDispatchSubtableEntryType > =A0 =A0 =A0 =A0 =A0 > =A0 =A0 =A0 =A0 =A0 MetadataValue > =A0 =A0 =A0 =A0 =A0 > =A0 =A0 =A0 =A0 > =A0 =A0 =A0 > > =A0 =A0 =A0 > =A0 =A0 =A0 =A0 MetadataDispatchType > =A0 =A0 =A0 =A0 Entry type for metadata dispatch table. > =A0 =A0 =A0 =A0 > =A0 =A0 =A0 =A0 =A0 =A0 > =A0 =A0 =A0 =A0 =A0 =A0 =A0 MetadataID > =A0 =A0 =A0 =A0 =A0 =A0 =A0 metadata ID > =A0 =A0 =A0 =A0 =A0 =A0 =A0 uint32 > =A0 =A0 =A0 =A0 =A0 =A0 > =A0 =A0 =A0 =A0 =A0 =A0 > =A0 =A0 =A0 =A0 =A0 =A0 =A0 MetadataDispatchSubtable > =A0 =A0 =A0 =A0 =A0 =A0 =A0 Metadata dispatch table. > =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 > =A0 =A0 =A0 =A0 =A0 =A0 =A0 MetadataDispatchSubtableType > =A0 =A0 =A0 =A0 =A0 =A0 =A0 > =A0 =A0 =A0 =A0 =A0 =A0 > =A0 =A0 =A0 =A0 > =A0 =A0 =A0 > > =A0 =A0 =A0 > =A0 =A0 =A0 =A0 MetadataDispatchTableType > =A0 =A0 =A0 =A0 Type for Metadata dispatch table. > =A0 =A0 =A0 =A0 > =A0 =A0 =A0 =A0 =A0 MetadataDispatchType > =A0 =A0 =A0 =A0 =A0 > =A0 =A0 =A0 =A0 =A0 MetadataID > =A0 =A0 =A0 =A0 =A0 > =A0 =A0 =A0 =A0 > =A0 =A0 =A0 > > Yours, > Chuanhuang > > =3D=3D=3D=3D=3D=3D=3D 2011-09-23 10:43:15 Wang,Weiming, wrote: =3D=3D=3D= =3D=3D=3D=3D > >>Pls provide a full XML definition so that we can review it again and writ= e the text. >> >>thks, >>Weiming >> >>----- Original Message ----- >>From: "Chuanhuang Li" >>Subject: Re: comments #14 >> >> >>> Hi, all >>> I think there is no sparse issue, whatever format we define this table = as -- >>> array in array or just one array. We do not use metadata IDs as table i= ndices. >>> The table indices still are: 1,2,3,...... The metadata ID is the conten= t of the >>> table (one of the member of the structure.). I prefer to the array in a= rray definition >>> as Jamal mentioned. >>> >>> name: MetadataDispatchTable >>> type: MetadataDispatchTableType >>> array of: >>> { >>> =A0 =A0MetadataID /*the ID value of the metadata.*/ >>> =A0 =A0array of: >>> =A0 =A0{ >>> =A0 =A0 =A0 MetadataValue, >>> =A0 =A0 =A0 OutputIndex /*group output port index*/ >>> =A0 =A0} >>> } >>> we use MetadataValue as the content key in inner table,. >>> we use the value of MetadataID as the content key in outer table. >>> >>> Yours, >>> Chuanhuang >>> >>> =3D=3D=3D=3D=3D=3D=3D 2011-09-22 20:57:31 Wang,Weiming, wrote: =3D=3D= =3D=3D=3D=3D=3D >>> >>>>Chuanhuang and Jamal, >>>> >>>>I'm ok with the definition. Moreover, as you mentioned, the MetadataID = may have to be defined as a 'content key'. By use of the content key, we ma= y avoid using it is the table index to look up the key, which, as Joel poin= ted, may not be dense enough. >>>> >>>>How about the solution? >>>> >>>>thks, >>>>Weiming >>>> >>>>----- Original Message ----- >>>>From: "Jamal Hadi Salim" >>>>Subject: Re: comments #14 >>>> >>>> >>>>Chuanhuang, >>>> >>>>Based on what Joel said (the sparsity issue) - I am open to leaving it = as it was >>>>as long as the text reflects the reasoning. >>>>I will leave it up to the authors to make that call. >>>> >>>>cheers, >>>>jamal >>>> >>>>On Thu, Sep 1, 2011 at 9:11 PM, Chuanhuang Li >>>> wrote: >>>>> Hi,All >>>>> >>>>> As an alternative, i think we can define MetadataDispatchTable by usi= ng table in table as Jamal said. >>>>> Pherhaps, this definition is more convinient. >>>>> name: MetadataDispatchTable >>>>> type: MetadataDispatchTableType >>>>> array of: >>>>> { >>>>> MetadataID /*the ID value of the metadata.*/ >>>>> array of: >>>>> { >>>>> MetadataValue, >>>>> OutputIndex /*group output port index*/ >>>>> } >>>>> } >>>>> >>>>> First, We use the ID value of the metadata to lookup the table (Note,= not finding internal index, >>>>> but the MetadataID member in the entry.), and will get a sub-table. D= rop if non-existent. >>>>> Next we lookup the sub-table using the metadata value to >>>>> find the OutputIndex. Drop if non-existent. >>>>> >>>>> Yours, >>>>> Chuanhuang >>>>> >>>>> =3D=3D=3D=3D=3D=3D=3D 2011-09-02 00:49:15 Jamal Hadi Salim, wrote: = =3D=3D=3D=3D=3D=3D=3D >>>>> >>>>>>Those are good reasons - and i will be happy if you kept the >>>>>>representation as is >>>>>>as long as you say something of whats below in the text. >>>>>> >>>>>>cheers, >>>>>>jamal >>>>>> >>>>>>On Thu, Sep 1, 2011 at 10:08 AM, Joel M. Halpern wrote: >>>>>>> I am probably missing a bit of context. >>>>>>> As a general rule, we do not use metadata IDs as table indices. The= reason >>>>>>> is that they are allocated across all the uses of metdaa, so they a= re not a >>>>>>> dense set. Using them as an index produces a large, sparse, table. = Not >>>>>>> particularly good. >>>>>>> >>>>>>> We can use the values of a metadatum as an index if that particular= set of >>>>>>> values is designed to be dense, and start from a very small number = (0, 1, or >>>>>>> so). Some metadata are designed that way, some aren't. >>>>>>> >>>>>>> Yours, >>>>>>> Joel >>>>>>> >>>>>>> On 9/1/2011 9:33 AM, Wang,Weiming wrote: >>>>>>>> >>>>>>>> Fixed all except on the following point. >>>>>>>> Chuanhuang,pls double check the possibility to use a table in tabl= e here. >>>>>>>> >>>>>>>> thanks, >>>>>>>> Weiming >>>>>>>> ----- Original Message ----- >>>>>>>> From: "Jamal Hadi Salim" >>>>>>>>> >>>>>>>>> The table contains entires of a Metadata ID, a Metadata value and= an >>>>>>>>> OutputIndex. >>>>>>>>> >>>>>>>>> The LFB uses all existing metadata associated with every input pa= cket >>>>>>>>> with their >>>>>>>>> metadata IDs and metadata values as the content keys to look up t= he table >>>>>>>>> to find out the relevant OutputIndex. >>>>>>>>> If a packet failed lookup of the table, the packet will just be d= ropped >>>>>>>>> inside the LFB. >>>>>>>>> >>>>>>>> Ok, now i realize my confusion was technical not editorial. It see= ms >>>>>>>> sensible that >>>>>>>> we should avoid content keys if we can get away with indexed table= s. I am >>>>>>>> sorry >>>>>>>> if i am rehashing past discussion: Why was this not a table inside= a >>>>>>>> table indirection? >>>>>>>> First you use the Metadata ID to index into table 1 to find the ta= ble for >>>>>>>> that Metadata. Drop if non-existent. Next you lookup the second ta= ble >>>>>>>> using the metadata value to find the OutputIndex. Drop if non-exis= tent. >>>>>>> >>>>> >>> >>> >>> > > > From chuanhuang_li@mail.zjgsu.edu.cn Mon Sep 26 19:08:06 2011 Return-Path: X-Original-To: forces@ietfa.amsl.com Delivered-To: forces@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 0BDBF11E80AF for ; Mon, 26 Sep 2011 19:08:06 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: 0.919 X-Spam-Level: X-Spam-Status: No, score=0.919 tagged_above=-999 required=5 tests=[AWL=-0.735, BAYES_20=-0.74, J_CHICKENPOX_25=0.6, MIME_BASE64_BLANKS=0.041, MIME_BASE64_TEXT=1.753] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 7RyBhBX2seqB for ; Mon, 26 Sep 2011 19:08:05 -0700 (PDT) Received: from mail.zjgsu.edu.cn (ucmail.zjgsu.edu.cn [124.160.64.1]) by ietfa.amsl.com (Postfix) with SMTP id 0624A11E807F for ; Mon, 26 Sep 2011 19:08:04 -0700 (PDT) Received: from RobinLee (unknown [10.20.0.167]) by mailportal (Coremail) with SMTP id rBCI85DL7oTWLoFOABJ6AA--.51962S2; Tue, 27 Sep 2011 10:03:02 +0800 (CST) Date: Tue, 27 Sep 2011 10:11:19 +0800 From: "Chuanhuang Li" To: "Jamal Hadi Salim" References: <201109231046266857542@mail.zjgsu.edu.cn> Message-ID: <201109271011188735185@mail.zjgsu.edu.cn> Organization: Zhejiang Gongshang Univercity X-mailer: Foxmail 6, 15, 201, 23 [cn] Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: base64 X-CM-TRANSID: rBCI85DL7oTWLoFOABJ6AA--.51962S2 X-Coremail-Antispam: 1Uf129KBjDUn29KB7ZKAUJUUUUUYxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJ3UbIYCTnIWIevJa73UjIFyTuYvj4RJUUUUUUUU X-CM-SenderInfo: pfkxt0xkxd0wxbolqzhdloh6pmjv3hxhgxhubq/ Cc: "Joel M. Halpern" , forces Subject: Re: [forces] LFB lib 05 version comments #1 X-BeenThere: forces@ietf.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: ForCES WG mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 27 Sep 2011 02:08:06 -0000 SGksIGFsbA0KDQpvaywgdGhlIGNhc2VzIG9mIEV4ZWNwdGlvbklEIGFuZCBWYWxpZGF0RXJyb3JJ RCB3aWxsIGJlIHNpbXBsaWZlZCBhcyBmb2xsb3dzLg0KVGhlIHRleHQgaW4gc2VjdGlvbiA1LjIu MS4xIGFuZCA1LjIuMi4xIG5lZWQgdG8gYmUgbW9kaWZpZWQgYWNjb3JkaW5nbHksDQphbmQgSSB3 aWxsIG1vZGlmeSB0aGUgWE1MIGZpbGUgYW5kIHNlY3Rpb24gMTAuNC4NCg0KSVB2NFZhbGlkYXRv ciBMRkINCiAgRXhlY3B0aW9uOg0KICBvIFBhY2tldCB3aXRoIGV4cGlyZWQgVFRMDQogIG8gUGFj a2V0IHdpdGggaGVhZGVyIGxlbmd0aCBtb3JlIHRoYW4gNSB3b3Jkcw0KICBvIFBhY2tldCBJUCBo ZWFkIGluY2x1ZGluZyBSb3V0ZXIgQWxlcnQgb3B0aW9ucw0KICBvIFBhY2tldCB3aXRoIGV4Y2Vw dGlvbmFsIHNvdXJjZSBhZGRyZXNzDQogIG8gUGFja2V0IHdpdGggZXhjZXB0aW9uYWwgZGVzdGlu YXRpb24gYWRkcmVzcw0KDQogICBWYWxpZGF0ZUVycm9yOg0KICAgbyBQYWNrZXQgc2l6ZSByZXBv 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aXRpb24gb2YgdGhlc2UgZXJyb3JzLg0KPj4gV2UganVzdCBnZW5lcmFsaXplIHRoZW0gaW4gdHdv IGNsYXNzZXM6IEludmFsaWREc3RBZGRyLCBJbnZhbGlkU3JjQWRkci4NCj4+IFRoYXQgaXMsIHdl IG9ubHkgZGVmaW5lIHR3byBWYWxpZGF0ZUVycm9ySUQgdG8gZGVzY3JpYmUgdGhlc2UgZXJyb3Ig Y2FzZXMuDQo+Pg0KPj4gVGhlIHNhbWUgYXMgVmFsaWRhdGVFcnJvcklELiBUaGVyZSBhcmUgbWFu eSBleGVjcHRpb24gY2FzZXMgd2hpY2ggYXJlIHJldmFsZW50IHRvDQo+PiB0aGUgc291cmNlIG9y IGRlc3RpbmF0aW9uIGFkZHJlc3MuDQo+PiBXZSBzaW1wbGlmeSB0aGUgZGVmaW5pdG9uOiBEc3RB ZGRyRXhjZXB0aW9uLCBTcmNBZGRyRXhjZXB0aW9uDQo+Pg0KPj4gV2hhdCdzIHlvdXIgb3Bpbmlv bj8NCj4+DQo+PiBZb3VycywNCj4+IENodWFuaHVhbmcNCj4+DQo+Pg0KPj4NCg== From wmwang2001@hotmail.com Tue Sep 27 19:53:59 2011 Return-Path: X-Original-To: forces@ietfa.amsl.com Delivered-To: forces@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 030BC1F0C3C for ; Tue, 27 Sep 2011 19:53:59 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: 1.969 X-Spam-Level: * X-Spam-Status: No, score=1.969 tagged_above=-999 required=5 tests=[AWL=-0.244, BAYES_20=-0.74, J_CHICKENPOX_23=0.6, J_CHICKENPOX_47=0.6, MIME_BASE64_TEXT=1.753] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id WwdlD6RL-rUy for ; Tue, 27 Sep 2011 19:53:58 -0700 (PDT) Received: from blu0-omc4-s11.blu0.hotmail.com (blu0-omc4-s11.blu0.hotmail.com [65.55.111.150]) by ietfa.amsl.com (Postfix) with ESMTP id DADB81F0C47 for ; Tue, 27 Sep 2011 19:53:57 -0700 (PDT) Received: from BLU0-SMTP265 ([65.55.111.135]) by blu0-omc4-s11.blu0.hotmail.com with Microsoft SMTPSVC(6.0.3790.4675); Tue, 27 Sep 2011 19:56:45 -0700 X-Originating-IP: [60.186.206.79] X-Originating-Email: [wmwang2001@hotmail.com] Message-ID: Received: from WmwangHome ([60.186.206.79]) by BLU0-SMTP265.phx.gbl over TLS secured channel with Microsoft SMTPSVC(6.0.3790.4675); Tue, 27 Sep 2011 19:56:42 -0700 From: "Wang,Weiming" To: "forces" , "Haleplidis Evangelos" References: , , , , <4E5F91D3.9030400@joelhalpern.com>, <201109020911078756756@mail.zjgsu.edu.cn>, , <201109230959120440269@mail.zjgsu.edu.cn> <201109231411441855361@mail.zjgsu.edu.cn> Date: Wed, 28 Sep 2011 10:56:47 +0800 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: base64 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5931 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.6109 X-OriginalArrivalTime: 28 Sep 2011 02:56:42.0850 (UTC) FILETIME=[4087C420:01CC7D8A] Subject: Re: [forces] comments #14 X-BeenThere: forces@ietf.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: ForCES WG mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 28 Sep 2011 02:53:59 -0000 UmVzZW5kIHRvIHRoZSBsaXN0IGJlY2F1c2Ugb2Ygbm8gcmVzcG9uc2UgZnJvbSB0aGUgbGlzdC4g DQoNCnRoa3MsDQpXZWltaW5nDQoNCi0tLS0tIE9yaWdpbmFsIE1lc3NhZ2UgLS0tLS0gDQpGcm9t 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forces@ietfa.amsl.com Delivered-To: forces@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 4E1FA21F8C46 for ; Tue, 27 Sep 2011 20:21:45 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: 1.379 X-Spam-Level: * X-Spam-Status: No, score=1.379 tagged_above=-999 required=5 tests=[AWL=0.364, BAYES_40=-0.185, J_CHICKENPOX_25=0.6, J_CHICKENPOX_39=0.6] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id MSVjBPJrAkSW for ; Tue, 27 Sep 2011 20:21:44 -0700 (PDT) Received: from blu0-omc2-s33.blu0.hotmail.com (blu0-omc2-s33.blu0.hotmail.com [65.55.111.108]) by ietfa.amsl.com (Postfix) with ESMTP id 9AB7C21F8C45 for ; Tue, 27 Sep 2011 20:21:44 -0700 (PDT) Received: from BLU0-SMTP281 ([65.55.111.71]) by blu0-omc2-s33.blu0.hotmail.com with Microsoft SMTPSVC(6.0.3790.4675); Tue, 27 Sep 2011 20:24:31 -0700 X-Originating-IP: [60.186.206.79] X-Originating-Email: [wmwang2001@hotmail.com] Message-ID: Received: from WmwangHome ([60.186.206.79]) by BLU0-SMTP281.phx.gbl over TLS secured channel with Microsoft SMTPSVC(6.0.3790.4675); Tue, 27 Sep 2011 20:24:29 -0700 From: "Wang,Weiming" To: "Chuanhuang Li" , "Jamal Hadi Salim" References: <201109231046266857542@mail.zjgsu.edu.cn> <201109271011188735185@mail.zjgsu.edu.cn> Date: Wed, 28 Sep 2011 11:24:33 +0800 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: base64 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5931 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.6109 X-OriginalArrivalTime: 28 Sep 2011 03:24:30.0190 (UTC) FILETIME=[2257A8E0:01CC7D8E] Cc: forces , "Joel M. Halpern" Subject: Re: [forces] LFB lib 05 version comments #1 X-BeenThere: forces@ietf.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: ForCES WG mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 28 Sep 2011 03:21:45 -0000 Q2h1YW5odWFuZywgDQpJJ3YgdXBkYXRlZCB0aGUgdGV4dCBhY2NvcmRpbmdseSB3aXRoIHNvbWUg bW9kaWZpY2F0aW9ucyBpbiB0aGUgd29yZHMuIFBscyBjaGVjZWsgdG8gbWFrZSBzb21lIGNoYW5n ZXMuIE1vcmVvdmVyLCBwbHMgcHJvdmlkZSB0ZXh0IGNoYW5nZXMgdG8gbWUgb24gU2VjdGlvbiAx MCBJQU5BIGFjY29yZGluZ2x5Lg0KDQp0aGtzLA0KV2VpbWluZw0KDQotLS0tLSBPcmlnaW5hbCBN ZXNzYWdlIC0tLS0tIA0KRnJvbTogIkNodWFuaHVhbmcgTGkiIDxjaHVhbmh1YW5nX2xpQG1haWwu empnc3UuZWR1LmNuPg0KDQo+IEhpLCBhbGwNCj4gDQo+IG9rLCB0aGUgY2FzZXMgb2YgRXhlY3B0 aW9uSUQgYW5kIFZhbGlkYXRFcnJvcklEIHdpbGwgYmUgc2ltcGxpZmVkIGFzIGZvbGxvd3MuDQo+ IFRoZSB0ZXh0IGluIHNlY3Rpb24gNS4yLjEuMSBhbmQgNS4yLjIuMSBuZWVkIHRvIGJlIG1vZGlm aWVkIGFjY29yZGluZ2x5LA0KPiBhbmQgSSB3aWxsIG1vZGlmeSB0aGUgWE1MIGZpbGUgYW5kIHNl 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LiBUaGVyZSBhcmUgbWFueSBleGVjcHRpb24gY2FzZXMgd2hpY2ggYXJlIHJldmFsZW50IHRvDQo+ Pj4gdGhlIHNvdXJjZSBvciBkZXN0aW5hdGlvbiBhZGRyZXNzLg0KPj4+IFdlIHNpbXBsaWZ5IHRo ZSBkZWZpbml0b246IERzdEFkZHJFeGNlcHRpb24sIFNyY0FkZHJFeGNlcHRpb24NCj4+Pg0KPj4+ IFdoYXQncyB5b3VyIG9waW5pb24/DQo+Pj4NCj4+PiBZb3VycywNCj4+PiBDaHVhbmh1YW5nDQo+ Pj4NCj4+Pg0KPj4+DQo+ From chuanhuang_li@mail.zjgsu.edu.cn Wed Sep 28 18:27:15 2011 Return-Path: X-Original-To: forces@ietfa.amsl.com Delivered-To: forces@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 0490A5E800C for ; Wed, 28 Sep 2011 18:27:15 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -0.285 X-Spam-Level: X-Spam-Status: No, score=-0.285 tagged_above=-999 required=5 tests=[AWL=0.514, BAYES_00=-2.599, J_CHICKENPOX_23=0.6, J_CHICKENPOX_47=0.6, J_CHICKENPOX_75=0.6] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 823RBA4LqQF9 for ; Wed, 28 Sep 2011 18:27:14 -0700 (PDT) Received: from mail.zjgsu.edu.cn (ucmail.zjgsu.edu.cn [124.160.64.1]) by ietfa.amsl.com (Postfix) with SMTP id 646A65E8003 for ; Wed, 28 Sep 2011 18:27:11 -0700 (PDT) Received: from RobinLee (unknown [10.20.0.167]) by mailportal (Coremail) with SMTP id rBCI85DbipoRyoNOABJ6AA--.59511S2; Thu, 29 Sep 2011 09:29:53 +0800 (CST) Date: Thu, 29 Sep 2011 09:30:39 +0800 From: "Chuanhuang Li" To: "Weiming Wang" , "Jamal Hadi Salim" References: , , , , <4E5F91D3.9030400@joelhalpern.com>, <201109020911078756756@mail.zjgsu.edu.cn>, , <201109230959120440269@mail.zjgsu.edu.cn>, <201109231411441855361@mail.zjgsu.edu.cn> Message-ID: <201109290930392942062@mail.zjgsu.edu.cn> Organization: Zhejiang Gongshang Univercity X-mailer: Foxmail 6, 15, 201, 23 [cn] Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-CM-TRANSID: rBCI85DbipoRyoNOABJ6AA--.59511S2 X-Coremail-Antispam: 1Uf129KBjDUn29KB7ZKAUJUUUUUYxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJ3UbIYCTnIWIevJa73UjIFyTuYvj4RJUUUUUUUU X-CM-SenderInfo: pfkxt0xkxd0wxbolqzhdloh6pmjv3hxhgxhubq/ Cc: "Joel M. Halpern" , Weiming Wang , forces Subject: Re: [forces] comments #14 X-BeenThere: forces@ietf.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: ForCES WG mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 29 Sep 2011 01:27:15 -0000 I agree with you. we only defined a group output in BasicMetadataDispatch currently. If you all have no other opinion, i'll add an ExecptionOut port to this LFB. The execption case is : o There is no matching when looking up the metadata dispatch table. Now, the LFB ports definition is as follows: Inputs: PktsIn, singleton input frameExpected: Arbitrary metadataExpected: Arbitrary Outputs: PktsOut,group output frameProduced: Arbitrary metadataProduced: none ExceptionOut, single output frameProduced: Arbitrary metadataProduced: ExceptionID Yours, Chuanhuang ======= 2011-09-28 10:29:21 Weiming Wang, wrote: ======= >When doing the update of the BasicMetadataDispatch LFB, I came up with a suggesttion that we may have also to define an "ExceptionOut" for the LFB. Currently, we defined that a failed dispatch packet will be dropped. This is unreasonable in some case. In some use case, it may only require that packets unable to be dispatched just pass throught the LFB for other processing rather than disappear. > >thanks, >Weiming > >----- Original Message ----- >From: "Chuanhuang Li" >Subject: Re: comments #14 > > >> Array in array, the XML defined as follows: >> >> *********************** >> >> MetadataDispatchSubtableEntryType >> Entry type for the subtable of metadata dispatch table. >> >> >> MetadataValue >> metadata value. >> uint32 >> >> >> OutputIndex >> group output port index. >> uint32 >> >> >> >> >> >> MetadataDispatchSubtableType >> Type for the subtable of metadata dispatch table. >> >> MetadataDispatchSubtableEntryType >> >> MetadataValue >> >> >> >> >> >> MetadataDispatchType >> Entry type for metadata dispatch table. >> >> >> MetadataID >> metadata ID >> uint32 >> >> >> MetadataDispatchSubtable >> Metadata dispatch table. >> >> MetadataDispatchSubtableType >> >> >> >> >> >> >> MetadataDispatchTableType >> Type for Metadata dispatch table. >> >> MetadataDispatchType >> >> MetadataID >> >> >> >> >> Yours, >> Chuanhuang >> >> ======= 2011-09-23 10:43:15 Wang,Weiming, wrote: ======= >> >>>Pls provide a full XML definition so that we can review it again and write the text. >>> >>>thks, >>>Weiming >>> >>>----- Original Message ----- >>>From: "Chuanhuang Li" >>>Subject: Re: comments #14 >>> >>> >>>> Hi, all >>>> I think there is no sparse issue, whatever format we define this table as -- >>>> array in array or just one array. We do not use metadata IDs as table indices. >>>> The table indices still are: 1,2,3,...... The metadata ID is the content of the >>>> table (one of the member of the structure.). I prefer to the array in array definition >>>> as Jamal mentioned. >>>> >>>> name: MetadataDispatchTable >>>> type: MetadataDispatchTableType >>>> array of: >>>> { >>>> MetadataID /*the ID value of the metadata.*/ >>>> array of: >>>> { >>>> MetadataValue, >>>> OutputIndex /*group output port index*/ >>>> } >>>> } >>>> we use MetadataValue as the content key in inner table,. >>>> we use the value of MetadataID as the content key in outer table. >>>> >>>> Yours, >>>> Chuanhuang >>>> >>>> ======= 2011-09-22 20:57:31 Wang,Weiming, wrote: ======= >>>> >>>>>Chuanhuang and Jamal, >>>>> >>>>>I'm ok with the definition. Moreover, as you mentioned, the MetadataID may have to be defined as a 'content key'. By use of the content key, we may avoid using it is the table index to look up the key, which, as Joel pointed, may not be dense enough. >>>>> >>>>>How about the solution? >>>>> >>>>>thks, >>>>>Weiming >>>>> >>>>>----- Original Message ----- >>>>>From: "Jamal Hadi Salim" >>>>>Subject: Re: comments #14 >>>>> >>>>> >>>>>Chuanhuang, >>>>> >>>>>Based on what Joel said (the sparsity issue) - I am open to leaving it as it was >>>>>as long as the text reflects the reasoning. >>>>>I will leave it up to the authors to make that call. >>>>> >>>>>cheers, >>>>>jamal >>>>> >>>>>On Thu, Sep 1, 2011 at 9:11 PM, Chuanhuang Li >>>>> wrote: >>>>>> Hi,All >>>>>> >>>>>> As an alternative, i think we can define MetadataDispatchTable by using table in table as Jamal said. >>>>>> Pherhaps, this definition is more convinient. >>>>>> name: MetadataDispatchTable >>>>>> type: MetadataDispatchTableType >>>>>> array of: >>>>>> { >>>>>> MetadataID /*the ID value of the metadata.*/ >>>>>> array of: >>>>>> { >>>>>> MetadataValue, >>>>>> OutputIndex /*group output port index*/ >>>>>> } >>>>>> } >>>>>> >>>>>> First, We use the ID value of the metadata to lookup the table (Note, not finding internal index, >>>>>> but the MetadataID member in the entry.), and will get a sub-table. Drop if non-existent. >>>>>> Next we lookup the sub-table using the metadata value to >>>>>> find the OutputIndex. Drop if non-existent. >>>>>> >>>>>> Yours, >>>>>> Chuanhuang >>>>>> >>>>>> ======= 2011-09-02 00:49:15 Jamal Hadi Salim, wrote: ======= >>>>>> >>>>>>>Those are good reasons - and i will be happy if you kept the >>>>>>>representation as is >>>>>>>as long as you say something of whats below in the text. >>>>>>> >>>>>>>cheers, >>>>>>>jamal >>>>>>> >>>>>>>On Thu, Sep 1, 2011 at 10:08 AM, Joel M. Halpern wrote: >>>>>>>> I am probably missing a bit of context. >>>>>>>> As a general rule, we do not use metadata IDs as table indices. The reason >>>>>>>> is that they are allocated across all the uses of metdaa, so they are not a >>>>>>>> dense set. Using them as an index produces a large, sparse, table. Not >>>>>>>> particularly good. >>>>>>>> >>>>>>>> We can use the values of a metadatum as an index if that particular set of >>>>>>>> values is designed to be dense, and start from a very small number (0, 1, or >>>>>>>> so). Some metadata are designed that way, some aren't. >>>>>>>> >>>>>>>> Yours, >>>>>>>> Joel >>>>>>>> >>>>>>>> On 9/1/2011 9:33 AM, Wang,Weiming wrote: >>>>>>>>> >>>>>>>>> Fixed all except on the following point. >>>>>>>>> Chuanhuang,pls double check the possibility to use a table in table here. >>>>>>>>> >>>>>>>>> thanks, >>>>>>>>> Weiming >>>>>>>>> ----- Original Message ----- >>>>>>>>> From: "Jamal Hadi Salim" >>>>>>>>>> >>>>>>>>>> The table contains entires of a Metadata ID, a Metadata value and an >>>>>>>>>> OutputIndex. >>>>>>>>>> >>>>>>>>>> The LFB uses all existing metadata associated with every input packet >>>>>>>>>> with their >>>>>>>>>> metadata IDs and metadata values as the content keys to look up the table >>>>>>>>>> to find out the relevant OutputIndex. >>>>>>>>>> If a packet failed lookup of the table, the packet will just be dropped >>>>>>>>>> inside the LFB. >>>>>>>>>> >>>>>>>>> Ok, now i realize my confusion was technical not editorial. It seems >>>>>>>>> sensible that >>>>>>>>> we should avoid content keys if we can get away with indexed tables. I am >>>>>>>>> sorry >>>>>>>>> if i am rehashing past discussion: Why was this not a table inside a >>>>>>>>> table indirection? >>>>>>>>> First you use the Metadata ID to index into table 1 to find the table for >>>>>>>>> that Metadata. Drop if non-existent. Next you lookup the second table >>>>>>>>> using the metadata value to find the OutputIndex. Drop if non-existent. >>>>>>>> >>>>>> >>>> >>>> >>>> >> >> >> From wmwang2001@hotmail.com Thu Sep 29 02:27:32 2011 Return-Path: X-Original-To: forces@ietfa.amsl.com Delivered-To: forces@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id D865021F850B for ; Thu, 29 Sep 2011 02:27:32 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: 1.366 X-Spam-Level: * X-Spam-Status: No, score=1.366 tagged_above=-999 required=5 tests=[AWL=0.351, BAYES_40=-0.185, J_CHICKENPOX_23=0.6, J_CHICKENPOX_47=0.6] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id D0hF+iCOtg0S for ; Thu, 29 Sep 2011 02:27:32 -0700 (PDT) Received: from blu0-omc2-s14.blu0.hotmail.com (blu0-omc2-s14.blu0.hotmail.com [65.55.111.89]) by ietfa.amsl.com (Postfix) with ESMTP id C13D821F8C08 for ; Thu, 29 Sep 2011 02:27:29 -0700 (PDT) Received: from BLU0-SMTP96 ([65.55.111.71]) by blu0-omc2-s14.blu0.hotmail.com with Microsoft SMTPSVC(6.0.3790.4675); Thu, 29 Sep 2011 02:30:19 -0700 X-Originating-IP: [60.186.206.79] X-Originating-Email: [wmwang2001@hotmail.com] Message-ID: Received: from WmwangHome ([60.186.206.79]) by BLU0-SMTP96.phx.gbl over TLS secured channel with Microsoft SMTPSVC(6.0.3790.4675); Thu, 29 Sep 2011 02:30:17 -0700 From: "Wang,Weiming" To: "Chuanhuang Li" , "Jamal Hadi Salim" , "forces" References: , , , , <4E5F91D3.9030400@joelhalpern.com>, <201109020911078756756@mail.zjgsu.edu.cn>, , <201109230959120440269@mail.zjgsu.edu.cn> <201109231411441855361@mail.zjgsu.edu.cn> Date: Thu, 29 Sep 2011 17:30:20 +0800 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5931 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.6109 X-OriginalArrivalTime: 29 Sep 2011 09:30:17.0708 (UTC) FILETIME=[667EE2C0:01CC7E8A] Cc: "Joel M. Halpern" Subject: Re: [forces] comments #14 X-BeenThere: forces@ietf.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: ForCES WG mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 29 Sep 2011 09:27:33 -0000 SGkgQ2h1YW5odWFuZywgSmFtYWwgYW5kIEpvZWwsIA0KDQpXZSBjdXJyZW50bHkgb25seSBkZWZp bmUgYSBzaW5nbGUgdHVwbGUgZGlzcGF0Y2ggdGFibGUgZm9yIHRoZSBCYXNpY01ldGFkYXRhRGlz cGF0Y2ggTEZCLiAgRm9yIHRoaXMgcHVycG9zZSwgSSBkb24ndCBzZWUgdGhlIG5lZWQgZm9yIGFu IGFycmF5IGluIGFycmF5IHN0cnVjdHVyZSBmb3IgaXQuIFJhdGhlciwgd2UgbWF5IG9ubHkgbmVl ZCB0byBkZWZpbmUgdHdvIGNvbXBvbmVudCBmb3IgdGhlIHB1cnBvc2UsIHNvbWV0aGluZyBsaWtl IGJlbG93LCBwbHMgY29tbWVudCBpdDogDQoNCioqKioqKioqKioqKioqKioqKioqKioqDQogICAg ICA8ZGF0YVR5cGVEZWY+DQogICAgICAgICA8bmFtZT5NZXRhZGF0YURpc3BhdGNoVGFibGVUeXBl PC9uYW1lPg0KICAgICAgICAgPHN5bm9wc2lzPlR5cGUgZm9yIE1ldGFkYXRhIGRpc3BhdGNoIHRh YmxlLjwvc3lub3BzaXM+DQogICAgICAgICA8YXJyYXkgdHlwZT0idmFyaWFibGUtc2l6ZSI+DQog 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FROM_EXCESS_BASE64=1.456, J_CHICKENPOX_23=0.6, J_CHICKENPOX_47=0.6, MIME_BASE64_BLANKS=0.041, SARE_SUB_ENC_UTF8=0.152] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id LQigzifI-mn0 for ; Thu, 29 Sep 2011 08:14:50 -0700 (PDT) Received: from mail.zjgsu.edu.cn (ucmail.zjgsu.edu.cn [124.160.64.1]) by ietfa.amsl.com (Postfix) with SMTP id 19F4A21F8D87 for ; Thu, 29 Sep 2011 08:14:45 -0700 (PDT) Received: from RobinLee (unknown [10.20.0.167]) by mailportal (Coremail) with SMTP id rBCI85D7rY0HjIROABJ6AA--.62006S2; Thu, 29 Sep 2011 23:17:27 +0800 (CST) Date: Thu, 29 Sep 2011 23:16:54 +0800 From: "=?utf-8?B?Q2h1YW5odWFuZyBMaQ==?=" To: "=?utf-8?B?V2FuZyxXZWltaW5n?=" , "=?utf-8?B?SmFtYWwgSGFkaSBTYWxpbQ==?=" , "=?utf-8?B?Zm9yY2Vz?=" References: , , , , <4E5F91D3.9030400@joelhalpern.com>, <201109020911078756756@mail.zjgsu.edu.cn>, , <201109230959120440269@mail.zjgsu.edu.cn>, <201109231411441855361@mail.zjgsu.edu.cn> 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