[Pals] Endpoint-ID in draft https://datatracker.ietf.org/doc/html/draft-schmutzer-pals-ple-signaling-00

Alexander Vainshtein <Alexander.Vainshtein@rbbn.com> Thu, 09 November 2023 13:40 UTC

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From: Alexander Vainshtein <Alexander.Vainshtein@rbbn.com>
To: "Christian Schmutzer (cschmutz)" <cschmutz@cisco.com>
CC: "pals@ietf.org" <pals@ietf.org>, "bess@ietf.org" <bess@ietf.org>, "Andrew G. Malis" <agmalis@gmail.com>, Stewart Bryant <stewart.bryant@gmail.com>
Thread-Topic: Endpoint-ID in draft https://datatracker.ietf.org/doc/html/draft-schmutzer-pals-ple-signaling-00
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Date: Thu, 09 Nov 2023 13:34:41 +0000
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Subject: [Pals] Endpoint-ID in draft https://datatracker.ietf.org/doc/html/draft-schmutzer-pals-ple-signaling-00
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Christian and all,
Repeating the gist of my comments on the PLE Signaling draft<https://datatracker.ietf.org/doc/html/draft-schmutzer-pals-ple-signaling-00> at the MPLS WG session in Prague today.

I think that Endpoint-ID defined in Section 5.5. of this draft is not needed.

If you want the endpoints of a PLE to be aware of the remote AC, you can use the generalized PWId FEC<https://datatracker.ietf.org/doc/html/rfc8077#section-6.2> a.k.a. FEC-129) for this purpose.

I also think that your reference to Path Trace Identifier in OTN is not really accurate:

  1.  This construct has been already defined for SONET and SDH
  2.  Mismatch of Path Trace Identifier, if enabled, results in killing he traffic (generation of downstream AIS) in both SONET/SDH and OTN.
     *   I have not found any action on mismatch of Endpoint-IDs in the draft
     *   Mismatch of AII in FEC-129 would result in failure to establish a PW.

Hopefully these notes will be useful.


Regards,
Sasha

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