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Mon, 4 Oct 2021 17:10:23 +0000 From: Ron Bonica To: Gyan Mishra , "Darren Dukes (ddukes)" CC: "srcomp@ietf.org" , SPRING WG Thread-Topic: [spring] [srcomp] compression analysis draft question on proposals analyzed Thread-Index: AQHXs8Ra50F8CwoW906pGS4CWV970Ku/oAUAgAN9XqA= Date: Mon, 4 Oct 2021 17:10:23 +0000 Message-ID: References: In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: dlp-product: dlpe-windows dlp-version: 11.6.100.41 dlp-reaction: no-action msip_labels: MSIP_Label_0633b888-ae0d-4341-a75f-06e04137d755_Enabled=true; MSIP_Label_0633b888-ae0d-4341-a75f-06e04137d755_SetDate=2021-10-04T17:10:22Z; MSIP_Label_0633b888-ae0d-4341-a75f-06e04137d755_Method=Standard; MSIP_Label_0633b888-ae0d-4341-a75f-06e04137d755_Name=0633b888-ae0d-4341-a75f-06e04137d755; MSIP_Label_0633b888-ae0d-4341-a75f-06e04137d755_SiteId=bea78b3c-4cdb-4130-854a-1d193232e5f4; MSIP_Label_0633b888-ae0d-4341-a75f-06e04137d755_ActionId=b67116e5-5cc4-4cc5-b853-d253aa713198; 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boundary="_000_BL0PR05MB531651A259CAB89166E29675AEAE9BL0PR05MB5316namp_" MIME-Version: 1.0 X-OriginatorOrg: juniper.net X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: BL0PR05MB5316.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 49f8edb0-745f-43fa-f906-08d98759da81 X-MS-Exchange-CrossTenant-originalarrivaltime: 04 Oct 2021 17:10:23.6026 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: bea78b3c-4cdb-4130-854a-1d193232e5f4 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: eVY6HMwUBzHd+FdYuAXi+Bza/vg3lDq+NXVRP1mhuzZE8fDrdCngEaWpl6gvqdKvAMfof6RDz30axR2ADjvs9w== X-MS-Exchange-Transport-CrossTenantHeadersStamped: BL0PR05MB5105 X-Proofpoint-ORIG-GUID: cOY3qqeWwsf8ln8AkXknxedWNb_IUkQ8 X-Proofpoint-GUID: cOY3qqeWwsf8ln8AkXknxedWNb_IUkQ8 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.182.1,Aquarius:18.0.790,Hydra:6.0.391,FMLib:17.0.607.475 definitions=2021-10-04_05,2021-10-04_01,2020-04-07_01 X-Proofpoint-Spam-Details: rule=outbound_spam_notspam policy=outbound_spam score=0 suspectscore=0 impostorscore=0 clxscore=1011 lowpriorityscore=0 mlxlogscore=999 bulkscore=0 adultscore=0 malwarescore=0 mlxscore=0 spamscore=0 phishscore=0 priorityscore=1501 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2109230001 definitions=main-2110040117 Archived-At: Subject: Re: [Srcomp] [spring] [srcomp] compression analysis draft question on proposals analyzed X-BeenThere: srcomp@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Compressed SRv6 SID Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 04 Oct 2021 17:10:36 -0000 --_000_BL0PR05MB531651A259CAB89166E29675AEAE9BL0PR05MB5316namp_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable And more specifically, all of the tables in Section A.2 will be modified, r= eplacing the C-SID column with one column for NEXT-C-SID, one column for RE= PLACE-C-SID, and one column for NEXT-AND-REPLACE-C-SID Ron Juniper Business Use Only From: spring On Behalf Of Gyan Mishra Sent: Saturday, October 2, 2021 7:51 AM To: Darren Dukes (ddukes) Cc: srcomp@ietf.org; SPRING WG Subject: Re: [spring] [srcomp] compression analysis draft question on propo= sals analyzed [External Email. Be cautious of content] Thanks Darren! On Mon, Sep 27, 2021 at 1:23 PM Darren Dukes (ddukes) > wrote: Was: Re: [spring] draft-filsfilscheng-spring-srv6-srh-compression-02#sectio= n-4.1.1 I'm sending this note to redirect this question to the srcomp DT for an edi= torial fix, when the team meets next. For the DT: Each proposal, introduced in section 1, discusses how it supports 16-bit an= d 32-bit SIDs. However, Gyan's question indicates this could be more clearl= y stated in the analysis draft to help readers less familiar with a proposa= l. As such, section 1 can be improved accordingly. Darren On 2021-09-24, 1:32 PM, "spring" > wrote: Gyan, You raise a very good point. In the analysis document, Tables 1 through 6 a= nd Tables 12 through 15 each contain only one column for the CSID. They do = not indicate whether the number in that column were calculated using the NE= XT-C-SID, REPLACE-C-SID, or NEXT-AND-REPLACE-C-SID. (That is, the do not in= dicate whether they were calculated using uSID, G-SID, or a combination of = both). Each of these tables should be modified, so that the CSID column is replace= d by three columns (NEXT-C-SID, REPLACE-C-SID, and NEXT-AND-REPLACE-C-SID). If the numbers in these columns are different from one another, this may in= form our discussion about whether NEXT-C-SID, REPLACE-C-SID, and NEXT-AND-R= EPLACE-C-SID are different behaviors or different flavors of a behavior. = Ron Juniper Business Use Only From: spring > On B= ehalf Of Gyan Mishra Sent: Friday, September 24, 2021 9:56 AM To: SPRING WG >; draft-filsfilschen= g-spring-srv6-srh-compression@ietf.org; spring-chairs@ietf.org Subject: Re: [spring] draft-filsfilscheng-spring-srv6-srh-compression-02#se= ction-4.1.1 [External Email. Be cautious of content] Dear Spring Authors Please respond to this question the WG has related to which of the three SR= v6 forwarding mechanisms called flavors was inclusive of the compression a= nalysis draft. The Analysis draft is ambiguous as to which SRv6 forwarding plane flavor wa= s part of the analysis. This is a critical question that has come up by the WG and Chairs, and answ= ering this question will help pave the way to an adoption call for C-SID. Kind Regards Gyan On Sun, Sep 19, 2021 at 3:33 PM Gyan Mishra > wrote: Dear Authors After having a few discussions on threads related to the SRv6 compression a= nalysis draft results, as well as WG coming to consensus on a single SRv6 c= ompression solution, a few critical questions have come up related to C-SID= draft that requires clarification by the authors. The C-SID draft has 3 compression solutions below and is a combination of t= he two drafts below which introduces 2 of the 3 compression solutions with = the C-SID draft introduction of yet a 3rd compression solution. Which of the 3 C-SID draft compression solutions was included as part of th= e DT analysis draft results and conclusion? This is a critical question that needs to be answered for clarification on = the C-SID draft solution. As the WG has consensus on a single solution we need to have clarification = from the authors which of the 3 compression solutions was included in the a= nalysis. The three solutions are very different and all would yield different analys= is results. I understand the authors have called the each solution a endpoint flavor wh= ich I see from the IANA codepoint allocations, however each flavor is a dif= ferent solution. https://www.iana.org/assignments/segment-routing/segment-routing.xhtml So the WG as stated would like a single solution so now we need feedback fr= om the authors which of the three solutions or endpoint flavors was part of= the DT analysis draft that the authors would like to put forward as the si= ngle compression solution. C-SID is a combination of the two drafts below: Combination of the two drafts below: G-SID - Generalized SID "REPLACE-C-SID" https://datatracker.ietf.org/doc/html/draft-cl-spring-generalized-srv6-for-= cmpr-03 SRv6 uSID micro-segment " NEXT-C-SID" https://datatracker.ietf.org/doc/html/draft-filsfils-spring-net-pgm-extensi= on-srv6-usid-10 Kind Regards Gyan -- [http://ss7.vzw.com/is/image/VerizonWireless/vz-logo-email] Gyan Mishra Network Solutions Architect Email gyan.s.mishra@verizon.com M 301 502-1347 -- [http://ss7.vzw.com/is/image/VerizonWireless/vz-logo-email] Gyan Mishra Network Solutions Architect Email gyan.s.mishra@verizon.com M 301 502-1347 _______________________________________________ spring mailing list spring@ietf.org https://www.ietf.org/mailman/listinfo/spring -- [http://ss7.vzw.com/is/image/VerizonWireless/vz-logo-email] Gyan Mishra Network Solutions Architect Email gyan.s.mishra@verizon.com M 301 502-1347 --_000_BL0PR05MB531651A259CAB89166E29675AEAE9BL0PR05MB5316namp_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

And more specifical= ly, all of the tables in Section A.2 will be modified, replacing the C-SID = column with one column for NEXT-C-SID, one column for REPLACE-C-SID, and on= e column for NEXT-AND-REPLACE-C-SID

 

   &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;         Ron=

 

 

 

Juniper Business Use Only

From: spring <spring-bounces@ietf.org> = On Behalf Of Gyan Mishra
Sent: Saturday, October 2, 2021 7:51 AM
To: Darren Dukes (ddukes) <ddukes=3D40cisco.com@dmarc.ietf.org>= ;
Cc: srcomp@ietf.org; SPRING WG <spring@ietf.org>
Subject: Re: [spring] [srcomp] compression analysis draft question o= n proposals analyzed

 

<= span style=3D"font-size:10.5pt;font-family:"Lato",sans-serif;colo= r:black">[External Email. Be cautious of content]

 

 

Thanks Darren!

 

On Mon, Sep 27, 2021 at 1:23 PM Darren Dukes (ddukes= ) <ddukes=3D40cisco.com@dm= arc.ietf.org> wrote:

Was: Re: [spring] draft-filsfilscheng-spring-srv6-srh-compression-= 02#section-4.1.1

 

I’m sending this note to redirect this question to the srcom= p DT for an editorial fix, when the team meets next.

 

For the DT:

Each proposal, introduced in section 1, discusses how it supports = 16-bit and 32-bit SIDs. However, Gyan’s question indicates this could= be more clearly stated in the analysis draft to help readers less familiar with a proposal.  As such, section 1 ca= n be improved accordingly.

 

Darren

 

On 2021-09-24, 1:32 PM, "spring" <spring-bounces@ietf.o= rg> wrote:

 

Gyan,

 

You raise a very good point. In the analys= is document, Tables 1 through 6 and Tables 12 through 15 each contain only = one column for the CSID. They do not indicate whether the number in that co= lumn were calculated using the NEXT-C-SID, REPLACE-C-SID, or NEXT-AND-REPLACE-C-SID. (That is, the do not indicate wh= ether they were calculated using uSID, G-SID, or a combination of both).

 

Each of these tables should be modified, s= o that the CSID column is replaced by three columns (NEXT-C-SID, REPLACE-C-= SID, and NEXT-AND-REPLACE-C-SID).

 

If the numbers in these columns are differ= ent from one another, this may inform our discussion about whether NEXT-C-S= ID, REPLACE-C-SID, and NEXT-AND-REPLACE-C-SID are different behaviors or di= fferent flavors of a behavior.

 

       =             &nb= sp;            =             &nb= sp;            =             &nb= sp;         Ron

 

 

 

Juniper Business Use Only

From: spring <spring-bounces@ietf.org> On Behalf Of Gyan Mishra
Sent: Friday, September 24, 2021 9:56 AM
To: SPRING WG <spring@ietf.org>; draft-filsfilscheng-spring-srv6-srh-compression@ietf.org; spring-chairs@ietf.org
Subject: Re: [spring] draft-filsfilscheng-spring-srv6-srh-compressio= n-02#section-4.1.1

 

[External Email. Be cautious of content]

 

Dear Spring Authors 

 

Please respond to this question the WG has related to which of the three SR= v6 forwarding mechanisms called  flavors was inclusive of the compress= ion analysis draft.

 

The Analysis draft is ambiguous as to which SRv6 forwarding plane flavor wa= s part of the analysis.

 

This is a critical question that has come up by the WG and Chairs, and answ= ering this question will help pave the way to an adoption call for C-SID. &= nbsp;

 

Kind Regards 

 

Gyan

 

On Sun, Sep 19, 2021 at 3:33 PM Gyan Mishra <hayabusagsm@gmail.com> wrote:

Dear Authors

 

After having a few discussions on threads related to the SRv6 compression a= nalysis draft results, as well as WG coming to consensus on a single SRv6 c= ompression solution, a few critical questions have come up related to C-SID= draft that requires clarification by the authors.

 

The C-SID draft has 3 compression solutions below and is a combination of t= he two drafts below which introduces 2 of the 3 compression solutions with = the  C-SID draft introduction of yet a 3rd compression solution.

 

Which of the 3 C-SID draft compression solutions was included as part of th= e DT analysis draft results and conclusion?=

 

This is a critical question that needs to be answered for clarification on = the C-SID draft solution.

 

As the WG has consensus on a single solution we need to have clarification = from the authors which of the 3 compression solutions was included in the a= nalysis.  

 

The three solutions are very different and all would yield different analys= is results.

 

I understand the authors have called the each solution a endpoint flavor wh= ich I see from the IANA codepoint allocations, however each flavor is a dif= ferent solution.  

 

 

So the WG as stated would like a single solution so now we need feedback fr= om the authors which of the three solutions or endpoint flavors was part of= the DT analysis draft that the authors would like to put forward as the si= ngle compression solution.

 

C-SID is a combination of the two drafts below:

 

Combination of the two drafts below:<= o:p>

 

G-SID - Generalized SID “REPLACE-C-SID”

 

SRv6 uSID micro-segment “ NEXT-C-SID”

 

Kind Regards <= /p>

 

 

Gyan

--

Gya= n Mishra

Networ= k Solutions Architect 

Email gyan.s.mishra@verizon.com

M 301 = 502-1347

 

--

Gya= n Mishra

Networ= k Solutions Architect 

Email gyan.s.mishra@verizon.com

M 301 = 502-1347

 

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--

Gyan Mishra=

Network Solutions Architect&nb= sp;

Email gyan.s.mishr= a@verizon.com

M 301 = 502-1347

 

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