Thanks Ketan. For flex algo scenario, Resolution we must do using BGP next hop or srv6 service sid (here srv6 service sid is derived from the corresponding flex algo locator) ? These are all very important to know for interop.
Thanks Rajesh Juniper Business Use Only From: Ketan Talaulikar (ketant) <ket...@cisco.com> Sent: Thursday, July 1, 2021 10:53 AM To: Rajesh M <mraj...@juniper.net>; gdawra.i...@gmail.com; Clarence Filsfils (cfilsfil) <cfils...@cisco.com>; rob...@raszuk.net; bruno.decra...@orange.com; jorge.raba...@nokia.com Cc: spring@ietf.org Subject: RE: SRv6 BGP based Overlay Services (draft-ietf-bess-srv6-services-07) [External Email. Be cautious of content] Hi Rajesh, Per https://datatracker.ietf.org/doc/html/draft-ietf-spring-segment-routing-policy-13#section-8.4<https://urldefense.com/v3/__https:/datatracker.ietf.org/doc/html/draft-ietf-spring-segment-routing-policy-13*section-8.4__;Iw!!NEt6yMaO-gk!X5JG5RvPO7zSCWr0y8h4SY2L5wTHUtXyL2Mv8qCzOC5-z59jAW73EAj9vdkbfS8H$> the endpoint of the SR Policy is matched with the BGP nexthop. Thanks, Ketan From: Rajesh M <mraj...@juniper.net<mailto:mraj...@juniper.net>> Sent: 01 July 2021 07:58 To: gdawra.i...@gmail.com<mailto:gdawra.i...@gmail.com>; Clarence Filsfils (cfilsfil) <cfils...@cisco.com<mailto:cfils...@cisco.com>>; Ketan Talaulikar (ketant) <ket...@cisco.com<mailto:ket...@cisco.com>>; rob...@raszuk.net<mailto:rob...@raszuk.net>; bruno.decra...@orange.com<mailto:bruno.decra...@orange.com>; jorge.raba...@nokia.com<mailto:jorge.raba...@nokia.com> Cc: spring@ietf.org<mailto:spring@ietf.org> Subject: SRv6 BGP based Overlay Services (draft-ietf-bess-srv6-services-07) Hi All, As per the draft "When the BGP route received at an ingress PE is colored with an extended color community and is being steered over a valid SRv6 Policy associated with SID list <S1, S2, S3> as described in Section 8 of [I-D.ietf-spring-segment-routing-policy<https://urldefense.com/v3/__https:/datatracker.ietf.org/doc/html/draft-ietf-bess-srv6-services-07*ref-I-D.ietf-spring-segment-routing-policy__;Iw!!NEt6yMaO-gk!X5JG5RvPO7zSCWr0y8h4SY2L5wTHUtXyL2Mv8qCzOC5-z59jAW73EAj9vTe1LjMn$>], then the effective SR Policy is <S1, S2, S3-Service-SID>" Here also "ingress PE SHOULD perform resolvability check for the S3 Service SID before considering the received prefix for the BGP best path computation" Lets consider s3 service SID resolution over SRv6 TE Policy, destination address(or endpoint) of an SRv6 TE Policy is a 128 bit address(host address).So for each service SID we need to configure SRv6 TE Policy (SRV6 TE policy destination address as service SID) ? Thanks Rajesh Juniper Business Use Only
_______________________________________________ spring mailing list spring@ietf.org https://www.ietf.org/mailman/listinfo/spring
