RE: [Sip] comments on draft-hilt-sip-correction-503-01

["Brett Tate" <brett at broadsoft.com>]

> I'm really unsure about whether this is an 
> essential correction or not. Its not a 
> functional bug, but a performance bug.

I'm also uncertain if this should be an essential correction.

The only 503 essential corrections that I see needed are clarification
of "server" within the rfc3261 section 21.5.4 and security implications
of honoring a 503's Retry-After.  Draft-hilt-sip-correction-503-01
attempts to provide some clarification concerning "server".  However I
did not notice what should occur if immediate destination IP address of
request was different than source address of 503 response.  Leaving it
vague is ok with me; however the topic (and 503 with Retry-After in
general) should be likely be discussed from a security perspective.

The rest of the draft appears to mainly be an rfc3261 extension and
related justification.


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