draft ptomaine minutes

[Mark Knopper]

PTOMAINE working group
19 March 2002 meeting summary

> - Geoff Huston <gih at telstra.net>- NOPEER community for BGP route scope control
> draft-huston-nopeer-00.txt

The (3) slides for the draft-huston-nopeer-00.txt proposal can be found at:
http://www.potaroo.net/papers/ietf/nopeer.pdf
    or (if you want ppt)
http://www.potaroo.net/papers/ietf/nopeer.ppt

It was agreed to make this a ptomaine wg document.




> - Ted Hardie <Ted.Hardie at nominum.com>   - Bounding Longest Match Considered
> draft-hardie-bounded-longest-match-02.txt

Presentation is at:
http://bgp.nu/~mak/IETF/blmc.pdf
http://bgp.nu/~mak/IETF/blmc.ppt


Andrew Partan pointed out that there are cases where the announcer
of the covering aggregrate *does not have a route* to the more
specific.  This was seen as an anomaly by Ted/Russ, but Andrew,
Geoff, and Randy note that it is very common.  This means that the
bounding of the longest match must be constrained to those
announcements where the next hop is common, which limits the utility
of the proposal.  It also means that odd other announcements which
have the longer match but different next-hops get preferenced.


Cengiz A. pointed out that we need to look at the data. Anyone who has
pointers to relevant data should post to the list.

Andrew: possible persistent route oscillation, as longer prefix may
re-appear somewhere else.

Ted and Russ will consider a plan to test, or at least provide an analytic
proof that this works.

It was agreed to keep discussing this draft in the working group. Ted/Russ
will update to address the points above, and will resubmit.


> - Russ White (riw at cisco.com) -  Controlling the
> redistribution of BGP routes
> draft-bonaventure-bgp-redistribution-02.txt


http://www.riw.to/temp/bgp-redist.pdf
http://www.riw.to/temp/bgp-resist.ppt

This is a joint draft with Russ White, Jeffrey Haas, Stefaan De Cnodder and
Bruno Quoitin.

- Requires use of extended communities, which not everyone uses.

- Geoff: how do you know your specifics aren't leaking?

It was agreed to make this a WG document.



> Cathy Wittbrodt <cjw at groovy.com> - presented Gert Doering's presentation on -
IPv6 routing scalability

 http://www.space.net/~gert/RIPE/R41-v6-table/ has now everything
 as one-GIF-per-Slide format, with mini-HTML around to click previous/next.

This presentation describes the global IPv6 routing table (yes, there is
one...) growth resulting from use of BGP4++ on the combined 6bone and RIR.

- Andrew: The martians (extra long AS path) may not be a BGP withdrawal bug.
They may be a transient state due to BGP counting to infinity. Cathy to ask
Gert about this.

- Can the tunneled v6 AS paths be mapped to real geographic network paths?





Other notes:

- Please comment on WG charter:
http://www.ietf.org/html.charters/ptomaine-charter.html

- List archive is here: http://www.shrubbery.net/ptomaine

- Abha's Merit page has been restored (thanks to Merit):
http://www.merit.edu/~ahuja/