Re: [spring] [EXTERNAL] Re: A technical concern regarding draft-schmutzer-spring-cs-sr-policy-00

> Physical links would be shared, but “soft” resources (queues, buffers > etc.) would not. > Well ingress or egress interface queue is a physical resource last time I checked. Leave alone zero view of intra chassis fabric issues and drops. Then last but not least you are making a huge

Re: [spring] [EXTERNAL] Re: A technical concern regarding draft-schmutzer-spring-cs-sr-policy-00

Robert, The default and CS topologies would each advertise their own resource-aware Node and Adj-SIDs, and these SID’s would be resource-aware with strictly separated resources. Physical links would be shared, but “soft” resources (queues, buffers etc.) would not. Regards, Sasha From: Robert

Re: [spring] [EXTERNAL] Re: A technical concern regarding draft-schmutzer-spring-cs-sr-policy-00

Hi, > I have probably did not say it explicitly, but the default topology would > use its own resources – and experience its own problems, strictly > orthogonal to whatever happens in the dedicated CS topology. > > IMHO and FWIW this could be treated as a possible approach for > implementing the

Re: [spring] [EXTERNAL] Re: A technical concern regarding draft-schmutzer-spring-cs-sr-policy-00

Robert and all, ++ Stewart since resource-aware SR Segments may be quite relevant here. Regards, Sasha From: Alexander Vainshtein Sent: Thursday, June 15, 2023 6:08 PM To: Robert Raszuk Cc: Christian Schmutzer

Re: [spring] [EXTERNAL] Re: A technical concern regarding draft-schmutzer-spring-cs-sr-policy-00

Robert, I have probably did not say it explicitly, but the default topology would use its own resources – and experience its own problems, strictly orthogonal to whatever happens in the dedicated CS topology. IMHO and FWIW this could be treated as a possible approach for implementing the

Re: [spring] A technical concern regarding draft-schmutzer-spring-cs-sr-policy-00

Hi Sasha, 1. > Activate multi-topology IGP (e.g., MT-ISIS, RFC 5120 ) Don't you still run default topology which could suffer in the very same - and a very valid issue - you are reporting ? - - - The biggest issue for me for this proposal

Re: [spring] A technical concern regarding draft-schmutzer-spring-cs-sr-policy-00

Christian and all, I have read Section 3.1 of the latest available version of the draft, and it seems that the BW guarantee mechanisms proposed in this section rely on some mechanisms that prevent non-CS