Re: [Idr] Fwd: New Version Notification for draft-scudder-idr-optional-transitive-00

Danny McPherson <danny@tcb.net> Tue, 03 March 2009 08:11 UTC

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From: Danny McPherson <danny@tcb.net>
To: "John G. Scudder" <jgs@juniper.net>
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Date: Tue, 03 Mar 2009 01:12:14 -0700
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Subject: Re: [Idr] Fwd: New Version Notification for draft-scudder-idr-optional-transitive-00
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On Mar 1, 2009, at 6:40 AM, John G. Scudder wrote:

> FYI.  We plan to present this at the upcoming IDR meeting.
>
> URL: http://www.ietf.org/internet-drafts/draft-scudder-idr-optional-transitive-00.txt

Some comments on the draft...

-
I'm not sure I like the recommended behavior in S 2
where we're treating malformed updates "as though all
contained prefixes had been withdrawn".  I'd strongly
prefer that in ALL cases the update be discarded.
Making assumptions and providing rules for how to
selectively handle mal-formed updates seems much like
something you yourself would caution us against.  I'd
much prefer a 'discard and log' requirement.

-
I could see how this text is S 2. might not be the case,
if varying implementations handle a given update in
different ways:

"This is likewise the case if an optional transitive
attribute is received whose Partial bit is not set --
this is because the detected error can be imputed to
the direct peer."


No other comments, I think this is a useful document.

-danny