Re: How does one make not playing nice with each other scale? (Was: net.terrorism)

[Joshua Goodall <joshua () roughtrade net>]

On Sat, 13 Jan 2001, Mark Mentovai wrote:

> Paul Vixie wrote:
> > Nope.  No part of ORBS is listed in AS7777.  The block which inspired this
> > thread is completely private to AS6461 and has to do with that network's AUG.
>
> This sort of brings up an interesting point, though.  Has anyone ever
> thought about adding a mechanism to BGP for advertising "anti-routes?"

Look at:
http://www.ietf.org/internet-drafts/draft-chen-bgp-route-filter-01.txt

however this functionality was not incorporated into the very recent
http://www.ietf.org/internet-drafts/draft-ietf-idr-bgp4-12.txt


Note that you still can't reach the nullroutes in this case if you have
the path 6461 702$, so this (or the alternative suggested,
community-tagging a nullroute feed for munging localprefs) would have to
be deployed amongst every above peer - with their cooperation - to avoid
asymmetric peculiarities.

Quite a lot of work just to allow orbs to probe you :) although the
generic case as addressed in the route-filter draft is quite interesting.

joshua