On Mon, 16 Nov 1998, I Am Not An Isp wrote:
At 01:00 AM 11/14/98 +0000, Andrew Bangs wrote:
You really want all backbone routers to ignore AS-Path length in the BGP route selection process? I think I like it better the way it is now - at least for the near future.
Hrmm.... Perhaps if the vendors covered the RFC error code type stuff at least, then they could add kewl, new features like "as-path length" as a step in the route selection process.
TTFN, patrick
You appear to have misunderstood the problem. The issue has nothing to do with route selection, or are you talking about FastPath(TM, Pat Pending) here? The issue is that an invalid as-path attribute was injected from somewhere. The cisco as-path sanity check code failed to pick it up. Bug ID : CSCdk63586 Project: CSC.sys Status : O 3 encls Product : all Found : customer-use Care Update: N Versions : 11.1CC Headline : BGP: Tighten as-path sanity check -- Release-note -- When the total bytes (2*seglen) of an as-path segment is equal to the as-path attribute length, the as-path sanity check would fail and such a bad attribute would be accepted. The workaround is to identify and get rid of the announcement of prefixes with the bad attributes. /vijay