[spring] Re: [Idr] S-BFD for SR-TE policies advertised by BGP?

[Robert Raszuk <[e-mail]>]

Hi,

Valid question, but much more for SPRING WG (cc-ed) - how to signal desire
for OAM in dynamically pushed SR policies or if not signalling it
explicitly how to associate dynamically pushed SR policy with specific set
of OAM actions.

As you can see from SPRING WG list there are lots of documents on segment
routing OAM for both MPLS and IPv6 data planes.

I would not just pick S-BFD but solve this for all possible types of
probes types in the unified way.

Thx,
Robert


On Fri, Aug 8, 2025 at 4:16 PM Dmytro Shypovalov <[e-mail]> wrote:

> Dear IDR WG,
>
> I am a developer of an SR-TE controller, and my customer asked for this.
>
> I don't see any mention of BFD in draft-ietf-idr-sr-policy-safi, and
> neither in the PCEP draft (I know, it's a different WG). Anyway BGP SR-TE
> is the preferred method for my customer.
>
> Router implementations support S-BFD for locally configured policies, but
> my understanding is that there no TLV to communicate to the router that
> S-BFD is desired for this policy.
>
> Was this discussed at some point in the WG and discarded for some reason?
> Were there any requests from operators? I think it's not a big change to
> add a new TLV to the draft.
>
> Regards,
> Dmytro
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