[GROW] Re: review request: BMP statistics scoping and interoperability

["Dikshit, Saumya" <[e-mail]>]

Hi Paolo,

Thanks for supporting/raising  this.
I agree that the statistics work in BMP is valuable, but the real question is not whether the data is useful, it is whether the semantics and scoping are clear enough for collectors and operators to interpret it consistently.

In my experience, BMP statistics are useful for operational validation and troubleshooting, especially when we need to compare route-change or RIB-related behavior across instances, detect deviations, and reason about policy-induced churn. The main pain point is that the same class of object can be scoped differently across drafts (AFI/SAFI, RD, EVPN instance, or policy-driven context), and a collector needs a shared understanding of what is comparable and what is not.

Working on the AIOPs telemetry analysis side I really think it’s worth following up actively. I will be among the first ones to consume it at least 😊

Best Regards,
Saumya.

From: Paolo Lucente <[e-mail]>
Date: Wednesday, 2 September 2026 at 5:14 AM
To: Dikshit, Saumya <[e-mail]>; [e-mail] <[e-mail]>
Cc: [e-mail] <[e-mail]>; [e-mail] <[e-mail]>; [e-mail] <[e-mail]>
Subject: Re: review request: BMP statistics scoping and interoperability


Hi Saumya, All,

I think your proposal to make a "super draft" around statistics instead
of doing sparse efforts here and there - which for once they are sparse
but they are also difficult to track and put together in one framework -
has definitely some merit. The details can be worked out along the way.

I wanted to take this opportunity for a side consideration, this did
emerge actually from a recent conversation Camilo and myself had around
the F flag draft: we are collectively putting lots of effort and
attention to statistics in BMP but how important and, even more
importantly, how used are they? So, especially among operators / BMP
users reading, could we do something as basic as a show of hands (of
course the more elaboration the better) in this sense? Are you using
statistics? Yes/no? If into elaborating more: for what use-case(s), ie.
just storing them for analysis, some sort of validation, else?

Paolo


On 17/8/26 15:08, Dikshit, Saumya wrote:
>
> Hello All ,
>
> I would like feedback on a BMP statistics issue that appears to be
> missing from the current discussion.
>
> There are several ways to represent the same class of object in BMP
> today: per-instance gauge values scoped by AFI/SAFI, RD, EVPN instance,
> or route-change policy.
> A collector that wants to support all of these may end up needing
> multiple incompatible parsers for essentially the same operational concept.
> This is already being discussed in parallel emails chains and this the
> gap I am trying to address with the following drafts:
>
>   *
>     https://urldefense.com/v3/__https://datatracker.ietf.org/doc/draft-saumthimma-evpn-ip-binding-__;!!NpxR!hzcFm7W4fz4oHgX7p6ztvIYK_fCtMdQJx5LGiioElS2PMZNN-iO1A09Z4FEu_7NTYRxGLZcOzSDexg$
>     sync/ <https://urldefense.com/v3/__https://datatracker.ietf.org/doc/draft-saumthimma-evpn-ip-__;!!NpxR!hzcFm7W4fz4oHgX7p6ztvIYK_fCtMdQJx5LGiioElS2PMZNN-iO1A09Z4FEu_7NTYRxGLZfG6W0tQg$
>     binding-sync/>
>   *
>     https://urldefense.com/v3/__https://datatracker.ietf.org/doc/draft-dikshit-grow-bmp-rd-scoped-__;!!NpxR!hzcFm7W4fz4oHgX7p6ztvIYK_fCtMdQJx5LGiioElS2PMZNN-iO1A09Z4FEu_7NTYRxGLZdl6yEabA$
>     rib-stats/ <https://urldefense.com/v3/__https://datatracker.ietf.org/doc/draft-dikshit-grow-bmp-__;!!NpxR!hzcFm7W4fz4oHgX7p6ztvIYK_fCtMdQJx5LGiioElS2PMZNN-iO1A09Z4FEu_7NTYRxGLZcTYsrQTg$
>     rd-scoped-rib-stats/>
>   *
>     https://urldefense.com/v3/__https://datatracker.ietf.org/doc/draft-smc-grow-bmp-route-change-__;!!NpxR!hzcFm7W4fz4oHgX7p6ztvIYK_fCtMdQJx5LGiioElS2PMZNN-iO1A09Z4FEu_7NTYRxGLZeVJl8Lsg$
>     stats/ <https://urldefense.com/v3/__https://datatracker.ietf.org/doc/draft-smc-grow-bmp-route-__;!!NpxR!hzcFm7W4fz4oHgX7p6ztvIYK_fCtMdQJx5LGiioElS2PMZNN-iO1A09Z4FEu_7NTYRxGLZcoNKwf2Q$
>     change-stats/>
>
>
> This is an ask for review comments on the direction:
>
>   *
>     whether a common instance-scoped / RD-scoped BMP statistics
>     structure is the right approach, and whether the statistics
>     ecosystem needs a shared pattern before these extensions proliferate.
>
>
> I would especially value feedback from people working on:
>
> - BMP statistics
> - BMP data models
> - EVPN and VPN RIB reporting
> - route-change and policy-driven telemetry
>
> If the WG thinks a common pattern is useful, I would be happy to align
> the drafts around that structure.
> If not, It would be great to know about it now, than discovering it  later.
>
> Thanks.
> Saumya Dikshit