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Re: [ippm] [spring] Active OAM in SRv6

Greg Mirsky <gregimirsky@gmail.com> Wed, 26 January 2022 23:01 UTC

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From: Greg Mirsky <gregimirsky@gmail.com>
Date: Wed, 26 Jan 2022 15:01:19 -0800
Message-ID: <CA+RyBmWDiBQfMrHHdqyVf_oi7dMW-sLrv2DF0RQLfXO47j=Bvg@mail.gmail.com>
To: Haoyu Song <haoyu.song@futurewei.com>
Cc: "spring@ietf.org" <spring@ietf.org>, IETF IPPM WG <ippm@ietf.org>
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Subject: Re: [ippm] [spring] Active OAM in SRv6
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Hi Haoyu,
thank you for bringing the topic of Active OAM to the discussion. As the
concept of Active IOAM is introduced in the IPPM WG draft
<https://datatracker.ietf.org/doc/html/draft-ietf-ippm-ioam-flags> it seems
to me like adding the IPPM WG community to the discussion is the right
thing to do.
Please find my notes in-lined below under the GIM>> tag.

Regards,
Greg

On Wed, Jan 26, 2022 at 2:37 PM Haoyu Song <haoyu.song@futurewei.com> wrote:

> Hi SPRING WG,
>
>
>
> Real time monitor on every node and every link on a network is necessary
> to detect  gray failures, which are the key culprit for poor QoS but hard
> to catch. SR provides an ideal mechanism, when working with some efficient
> planning algorithm, to achieve that with low cost.   Our proposal SRv6
> In-situ Active Measurement (SIAM) suggests a simple  active measurement
> approach which can support different
>
GIM>> I wonder what gaps you find in the existing active measurement
protocols, e.g., STAMP and RFC 6734 (would be more convenient to use an
acronym). It appears to me that, for example, STAMP and its extensions,
including the SRPM draft
<https://datatracker.ietf.org/doc/html/draft-ietf-ippm-stamp-srpm>,
comprehensively address the PM OAM requirements for SRv6.

> options of IOAM and other OAM methods in SRv6, without needing to worry
> about the extension header issue.
>
GIM>> draft-ietf-ippm-ioam-data classifies IOAM as follows:
   In terms of the classification given
   in [RFC7799] IOAM could be portrayed as Hybrid Type 1.
Does your proposal change that?

>
>
> Your comments, questions, and suggestions are very welcome. I’d like to
> know your opinion if you think this work is in scope and should be adopted
> by the working group.  If you are interested in contributing to this work,
> please also let me know.
> https://datatracker.ietf.org/doc/draft-song-spring-siam/
>
>
>
> Thank you very much!
>
>
>
> Best regards,
>
> Haoyu
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring
>

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