[spring] Comment on draft-alston-spring-crh-bgp-signalling-00

S Moonesamy <sm+ietf@elandsys.com> Wed, 10 July 2019 09:11 UTC

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Date: Wed, 10 Jul 2019 02:10:27 -0700
To: Andrew Alston <Andrew.Alston@liquidtelecom.com>, spring@ietf.org
From: S Moonesamy <sm+ietf@elandsys.com>
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Subject: [spring] Comment on draft-alston-spring-crh-bgp-signalling-00
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Hi Andrew,

I took a quick look at draft-alston-spring-crh-bgp-signalling-00.  In 
Section 3.1, there is the following:

   "Since SIDs in the context of a compressed routing header can be
    either 16bit of 32bit, the attribute value MUST be either 2 or 4 and
    the attribute MUST be ignored if this is not the case."

Where does the 2 or 4 come from?  Is the draft trying to specify that 
the compressed routing header is malformed if the attribute value is 
not 2 or 4?

Regards,
S. Moonesamy