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