[spring] Re: [mpls] Resuming discussion on draft-ietf-sp ring-sr-service-programming

Dear WG

In the context of the renewed interest in SR service programming, we would also like for the working group to review the associated OAM work.

  *   https://datatracker.ietf.org/doc/draft-ali-spring-sr-service-programming-oam/

We will appreciate any feedback from the working group.

Thanks

Regards … Zafar

From: Francois Clad <[email protected]>
Date: Monday, May 12, 2025 at 6:26 AM
To: spring <[email protected]>
Cc: [email protected] <[email protected]>, 6man <[email protected]>
Subject: [mpls] Resuming discussion on draft-ietf-spring-sr-service-programming
(to: SPRING WG; cc: MPLS and 6MAN WGs)

Dear WG,

With the renewed interest in service programming at recent IETF meetings, we would like to resume discussion on draft-ietf-spring-sr-service-programming (“Service Programming with Segment Routing”) to progress and complete this work as a solid foundation for future proposals.

https://datatracker.ietf.org/doc/draft-ietf-spring-sr-service-programming/

This draft describes the data plane mechanisms required for service segments and service programming in SR-MPLS and SRv6 networks. Its goal is to enable the integration of physical or virtual network functions into SR policies by associating each service with a SID.

The draft defines two types of services:

  *   SR-aware services, which natively process SR information in packets
  *   SR-unaware services, which require an SR proxy to handle or adapt SR headers before the service function processes the packet.
To support SR-unaware services, the draft specifies several SR proxy behaviors, outlining their respective benefits and limitations.

Finally, the draft describes how service-related metadata can be carried in both SR-MPLS and SRv6 packets.

We welcome any feedback, comments, or suggestions you may have on the draft.

Thanks,
Francois (on behalf of the co-authors)

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