[bess] Comments about draft-gmsm-bess-evpn-bfd-01

"Rabadan, Jorge (Nokia - US/Mountain View)" <jorge.rabadan@nokia.com> Mon, 05 November 2018 09:44 UTC

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From: "Rabadan, Jorge (Nokia - US/Mountain View)" <jorge.rabadan@nokia.com>
To: "bess@ietf.org" <bess@ietf.org>, "draft-gmsm-bess-evpn-bfd.authors@ietf.org" <draft-gmsm-bess-evpn-bfd.authors@ietf.org>
Thread-Topic: Comments about draft-gmsm-bess-evpn-bfd-01
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Date: Mon, 5 Nov 2018 09:44:49 +0000
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Subject: [bess] Comments about draft-gmsm-bess-evpn-bfd-01
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Dear authors,

I couldn’t make it to the BESS meeting, so my apologies if some of these things have been discussed.
 
Some comments/questions:

- In the last IETF, I suggested the use of BGP and the BGP-BFD attribute to exchange discriminators, as in section 3.1.6 of draft-ietf-bess-mvpn-fast-failover. The idea seemed to be accepted, but it is not in the new version. This would allow the signaling of the discriminators along with MAC/IP routes, IMET routes, AD per-EVI routes, IP-Prefix routes, etc. without the burden of having to support the EVPN LSP-ping draft.

- The draft describes an encapsulation and an alternative encapsulation. Is the intend to keep both? Wouldn't be better to leave only one to ease implementations and interoperability?

Thank you.
Jorge