Hi David, On Wed, 2008-11-05 at 11:08 -0500, David Jacobs wrote: > I did a sh ip route X.X.X.X and at times it would say x.x.x.x/32 and > other times I would just see x.x.x.x/16. Quite obviously this made > life for my frame relay customers life misery. > After trying all sorts of steps we could not get the flapping to stop. > In a last ditch effort we offloaded our OC3 onto another router,( we > are still using this router as a lifeboat.)
What did the box itself have in its routing table at this time? How does the box lift the host prefix into IS-IS? Does a "debug isis rib resdistribution" give any clues? > To skip ahead, I ended up getting a new 7507 chassis, brand new RSP 4 > and brand new GEIP's and OC3 cards. I reconfigured the router with the > same Ip and ISIS config and WHAMMO the same ISIS route flapping begins > to happen. After many hours of troubleshooting one thing I did was > change the ISIS NET address, once this was changed things went back to > normal. Brand new 7500 hardware? Where? ;-) > Why would changing the NET address suddenly stop an ISIS route from > flapping? A shot in the dark, but you wouldn't happen to have another box with the same NET on your network? Regards, Peter _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
