Re: I-D Action: draft-ietf-bfd-yang-17.txt

t petch <ietfa@btconnect.com> Thu, 20 August 2020 16:32 UTC

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Subject: Re: I-D Action: draft-ietf-bfd-yang-17.txt
To: Jeffrey Haas <jhaas@pfrc.org>
References: <C71CC69E-DAE4-49E0-983A-9B2EE9B4CD46@gmail.com> <D5A12762.2D4DB5%rrahman@cisco.com> <E4E310A2-A79C-403E-B68E-A39B76E2C5E0@gmail.com> <773E4FFC-D66A-49E5-A03A-58B7DBA82D90@gmail.com> <20170731170550.GO24942@pfrc.org> <BAF4C9E6-ED02-4E25-89DD-2FA181AF3B72@gmail.com> <3637B198-8F82-4A85-A4A1-4383AF98088D@pfrc.org> <D26CB257-E4B2-42FA-940E-BF77C8BC1751@gmail.com> <20170801144129.GC24942@pfrc.org> <F319C69C-3A4E-4C5C-ADA4-37BDFD97E91A@gmail.com> <20170801163340.GD24942@pfrc.org>
Cc: Reshad Rahman <rrahman@cisco.com>, rtg-bfd@ietf.org, draft-ietf-bfd-yang@ietf.org
From: t petch <ietfa@btconnect.com>
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Date: Thu, 20 Aug 2020 17:32:40 +0100
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Yes bfd-yang.  Sometimes I would like to be wrong.

When I look at this I-D, I see that it references
     /rt:routing/mpls:mpls/mpls:interface/mpls:config/mpls:enabled
In 2018, the MPLS WG removed that /config from the mpls-base-yang so
this would seem to be no longer valid. What needs changing to rectify
this I have not explored.

The I-D has
      augment "/te:te/te:lsps-state/te:lsp"
which I no longer see in  draft-ietf-teas-yang-te - the -state has gone.
Again, I have not explored the ramifications of this.

MPLS WG has a new base-yang out this week which differentiates between
an IP route with a MPLS next hop and a MPLS route with no IP, the latter
forming a new, mpls Address Family.  I would think that the latter is
not catered for by BFD but it would be nice to be wrong

Tom Petch