Re: [Isis-wg] draft-wei-isis-tlv-03 (Purge Originator Id)

[Tony Li <[e-mail]>]

Hi Les,

> But hopefully we can comment on 01 anyway?? :-)

Of course!  ;-)

> I don't see the need for Section 3. It was interesting discussion
> material while we were debating the merits of making this a WG document,
> but I think it has drawbacks when it is included in what is intended to
> become a standards document.

Well, the point was to help document some of the field failures that we've
seen and motivate the changes.
 
> In the second set of three points, only the first (which documents the
> lamentable purge on checksum error experience) has value. The last two
> are anecdotal and could be translated as "there are some weird bugs out
> there". Interesting - but unnecessary. The first point could be
> mentioned in the introduction as part of the justification for the
> protocol extensions - but I think even that is unnecessary.

True, but without the background, these changes would seem like something
straight out of the Oort cloud.

Compromise: condense the text and move to the introduction?


> In Section 5 I would like to see language which says "hostname TLV
> SHOULD only be used in addition to the system ID TLV". As every IS MUST
> have a unique systemID but hostnames are optional I would prefer that if
> an implementation chooses to include the extra info in the purge that
> the system ID ALWAYS be there. (This is unenforceable of course)


Works for me.  Other folks?


> I think there needs to be language which makes clear that the absence or
> presence of this additional information has no impact on the acceptance
> of a purged LSP as valid i.e. no changes to the operation of the Update
> process are introduced by this draft.


Can't hurt.  I'm certain that this will break some conformance testers
regardless.  

Any other comments?

Tony