Alia Atlas' Discuss on draft-ietf-bfd-seamless-ip-04: (with DISCUSS)

"Alia Atlas" <akatlas@gmail.com> Mon, 02 May 2016 22:26 UTC

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From: Alia Atlas <akatlas@gmail.com>
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Subject: Alia Atlas' Discuss on draft-ietf-bfd-seamless-ip-04: (with DISCUSS)
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Alia Atlas has entered the following ballot position for
draft-ietf-bfd-seamless-ip-04: Discuss

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----------------------------------------------------------------------
DISCUSS:
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I think that these are both simple fast issues to resolve.

1) Sec 3: "This document defines only the UDP port value
   for the S-BFD Echo function.  The source port and the procedures for
   the S-BFD Echo function are outside the scope of this document."
Please add a reference to the S-BFD base document for defining where the
procedures are found. 

Where, precisely, is the source port defined?  It wasn't in the S-BFD
base
document.  This seems like a hole.  Can you please clarify?

2) Sec 4:  " If the port is not 7784, then the packet MUST be looked up
to locate
   a corresponding SBFDInitiator session or classical BFD session based
   on the value from the "your discriminator" field in the table
   describing BFD discriminators. "

I assume that you mean that UDP source port is used to look up the
appropriate receiver.
If that receiver handles BFD and S-BFD packets, then the "your
discriminator" field is used
to identify the BFD session.   PLEASE clarify that because this reads as
if BFD is the only
application that uses UDP.