Gday Bryan, A couple of questions:
1. Can you let me know IOS version/platform you're using (I want to try it) - At a guess I'd say 7200 if you're playing with ATM. 2. Is the summary you're configuring under a global or VRF interface? 3. Any other kookie stuff going on where R7 might be receiving or advertising a 0/0 from another protocol? (again to try and recreate issue in my lab) I'll play with this first thing in the AM - it's telly (read: wind down) time now! :-) Cheers, Con. On Sat, Aug 29, 2009 at 7:12 PM, Bryan Bartik<[email protected]> wrote: > Have you guys ever seen this? > > R7(config)#interface ATM1/0.711 point-to-point > R7(config-subif)#ip summary-address eigrp 117 0.0.0.0 0.0.0.0 > R7(config-subif)#^Z > R7# > 04:19:34: %DUAL-5-NBRCHANGE: IP-EIGRP(2) 117: Neighbor 117.117.117.12 > (ATM1/0.711) is down: summary configured > > The neighbor never comes back up! Remove the summary > > R7(config-subif)#no ip summary-address eigrp 117 0.0.0.0 0.0.0.0 5 > R7(config-subif)# > 04:21:06: %DUAL-5-NBRCHANGE: IP-EIGRP(2) 117: Neighbor 117.117.117.12 > (ATM1/0.711) is up: new adjacency > R7(config-subif)# > > Comes back up! > > On a hunch I decided to use AD 255: > > R7(config-subif)#ip summary-address eigrp 117 0.0.0.0 0.0.0.0 255 > R7(config-subif)# > 04:23:55: %DUAL-5-NBRCHANGE: IP-EIGRP(2) 117: Neighbor 117.117.117.12 > (ATM1/0.711) is up: new adjacency > > It's up! Is this correct behavior? > > -- > Bryan Bartik > CCIE #23707 (R&S), CCNP > Sr. Support Engineer - IPexpert, Inc. > URL: http://www.IPexpert.com > > _______________________________________________ > For more information regarding industry leading CCIE Lab training, please > visit www.ipexpert.com > > _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com
