Re: [spring] Suggest some text //RE: Request to close the LC and move forward//RE: WGLC - draft-ietf-spring-srv6-network-programming
Joel Halpern Direct <jmh.direct@joelhalpern.com> Sun, 01 March 2020 13:21 UTC
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To: Robert Raszuk <robert@raszuk.net>, "Joel M. Halpern" <jmh@joelhalpern.com>
Cc: "spring@ietf.org" <spring@ietf.org>, "6man@ietf.org" <6man@ietf.org>
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From: Joel Halpern Direct <jmh.direct@joelhalpern.com>
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Subject: Re: [spring] Suggest some text //RE: Request to close the LC and move forward//RE: WGLC - draft-ietf-spring-srv6-network-programming
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While the node is "asserting" that the two are the same, if you use different SIDs for OAM compared with data traffic then you are not actually checking the same forwarding path. You are not using the same FIB entries. Sure, if everything works right they are the same. But the whole point of OAM is for when not everything is working right. Yours, Joel On 3/1/2020 8:07 AM, Robert Raszuk wrote: > Nope. > > Node can advertise two SIDs or PSP in a given network may be a well know > function (to limit IGP burden) Example: odd SID includes PSP and even > SID does not. > > O*A*M packets can use on the exact same path but the penultimate hop > traversal is directed by even SID and is not subject to PSP. > > Done. > > Thx, > R. > > On Sun, Mar 1, 2020 at 5:50 AM Joel M. Halpern <jmh@joelhalpern.com > <mailto:jmh@joelhalpern.com>> wrote: > > Presuming that by "OEM" you mean "OAM", then no, this does not work. > If the OAM is intended to monitor a path that has a last SID whose > flavor is PSP, then something will break. The monitoring will monitor > something else, or it won't monitor the last hop, or... > > Given the point that was made that ignoring a source route (SRH or > otherwise) with segments-left = 0 is a mandatory behavior of 8200, I am > really left puzzled as to what use case justifies the contortion of PSP. > > Yours, > Joel >
- [spring] Suggest some text //RE: Request to close… Xiejingrong (Jingrong)
- Re: [spring] Suggest some text //RE: Request to c… Brian E Carpenter
- Re: [spring] Suggest some text //RE: Request to c… Bob Hinden
- Re: [spring] Suggest some text //RE: Request to c… 神明達哉
- Re: [spring] Suggest some text //RE: Request to c… Xiejingrong (Jingrong)
- Re: [spring] Suggest some text //RE: Request to c… Xiejingrong (Jingrong)
- Re: [spring] Suggest some text //RE: Request to c… Gyan Mishra
- Re: [spring] Suggest some text //RE: Request to c… Gyan Mishra
- Re: [spring] Suggest some text //RE: Request to c… Robert Raszuk
- Re: [spring] Suggest some text //RE: Request to c… John Scudder
- Re: [spring] Suggest some text //RE: Request to c… Robert Raszuk
- Re: [spring] Suggest some text //RE: Request to c… John Scudder
- Re: [spring] Suggest some text //RE: Request to c… Brian E Carpenter
- Re: [spring] Suggest some text //RE: Request to c… John Scudder
- Re: [spring] Suggest some text //RE: Request to c… Greg Mirsky
- Re: [spring] Suggest some text //RE: Request to c… Robert Raszuk
- Re: [spring] Suggest some text //RE: Request to c… Greg Mirsky
- Re: [spring] Suggest some text //RE: Request to c… Robert Raszuk
- Re: [spring] Suggest some text //RE: Request to c… John Scudder
- Re: [spring] Suggest some text //RE: Request to c… Zafar Ali (zali)
- Re: [spring] Suggest some text //RE: Request to c… Wang, Weibin (NSB - CN/Shanghai)
- Re: [spring] Suggest some text //RE: Request to c… Joel M. Halpern
- Re: [spring] Suggest some text //RE: Request to c… Xiejingrong (Jingrong)
- Re: [spring] Suggest some text //RE: Request to c… Xiejingrong (Jingrong)
- Re: [spring] Suggest some text //RE: Request to c… Wang, Weibin (NSB - CN/Shanghai)
- Re: [spring] Suggest some text //RE: Request to c… Xiejingrong (Jingrong)
- Re: [spring] Suggest some text //RE: Request to c… Wang, Weibin (NSB - CN/Shanghai)
- Re: [spring] Suggest some text //RE: Request to c… Wang, Weibin (NSB - CN/Shanghai)
- Re: [spring] Suggest some text //RE: Request to c… Xiejingrong (Jingrong)
- Re: [spring] Suggest some text //RE: Request to c… Robert Raszuk
- Re: [spring] Suggest some text //RE: Request to c… Joel Halpern Direct
- Re: [spring] Suggest some text //RE: Request to c… Greg Mirsky
- Re: [spring] Suggest some text //RE: Request to c… Zafar Ali (zali)
- Re: [spring] Suggest some text //RE: Request to c… Joel M. Halpern
- Re: [spring] Suggest some text //RE: Request to c… Zafar Ali (zali)
- [spring] SRv6 OAM Robert Raszuk
- Re: [spring] Suggest some text //RE: Request to c… Gyan Mishra
- Re: [spring] Suggest some text //RE: Request to c… Xiejingrong (Jingrong)
- Re: [spring] Suggest some text //RE: Request to c… 神明達哉
- Re: [spring] Suggest some text //RE: Request to c… Gyan Mishra
- Re: [spring] Suggest some text //RE: Request to c… Xiejingrong (Jingrong)
- Re: [spring] Suggest some text //RE: Request to c… Darren Dukes (ddukes)
- Re: [spring] Suggest some text //RE: Request to c… Gyan Mishra
- Re: [spring] Suggest some text //RE: Request to c… li_zhenqiang@hotmail.com
- Re: [spring] Suggest some text //RE: Request to c… Pablo Camarillo (pcamaril)
- Re: [spring] Suggest some text //RE: Request to c… 神明達哉
- Re: [spring] Suggest some text //RE: Request to c… John Scudder
- Re: [spring] Suggest some text //RE: Request to c… Ketan Talaulikar (ketant)
- Re: [spring] Suggest some text //RE: Request to c… Brian E Carpenter
- Re: [spring] Suggest some text //RE: Request to c… 神明達哉
- Re: [spring] Suggest some text //RE: Request to c… Robert Raszuk
- Re: [spring] Suggest some text //RE: Request to c… 神明達哉
- Re: [spring] Suggest some text //RE: Request to c… Robert Raszuk
- Re: [spring] Suggest some text //RE: Request to c… 神明達哉