Hi, Have you done any debugging to see if EIGRP packets are being seen before the hold time expires?
On Sun, Jun 14, 2009 at 7:40 PM, Antonio Dee Hotmail < [email protected]> wrote: > I don't think it's an MTU issue, as i'm running the NM-16 module for the > switching function on the GNS3 simulator > > > > > > *From:* Wouter Prins [mailto:[email protected]] > *Sent:* Monday, 15 June 2009 12:54 AM > *To:* Antonio Dee Hotmail > *Subject:* Re: [OSL | CCIE_RS] Fallback Bridging creating problem with > routing protocol > > > > MTU issue? > > 2009/6/13 Antonio Dee Hotmail <[email protected]> > > Hi All, > > > > I'm not sure if this is just because of GNS3 or this is really a problem > with Fallback bridging to look out for. > > > > My fallback bridging configuration on Cat1 is: > > > > Cat1(config)# bridge 10 protocol vlan-bridge > > Cat1(config)# no bridge 10 acquire > > Cat1(config)# bridge 10 address 1111.1111.1111 forward > > Cat1(config)# bridge 10 address aaaa.aaaa.aaaa forward > > ! > > Cat1(config)# int vlan 5 > > Cat1(config-if)# bridge 10 > > ! > > Cat1(config)# int fa1/10 > > Cat1(config-if)# bridge 10 > > > > Nothing fancy, I'm just trying out scenarios integrating different things > to see if they break or not. And i stumbled something that breaks :-) or :-( > > > > My setup is so simple: R10 <-------> Cat1 <------> R5 > > > > R10 (192.168.10.10) to Cat1 subnet is 192.168.10.0/24 - Cat1 > connected to R10 with Fa1/10 port L3 configuration > > R5 (192.168.5.5) to Cat1 subnet is 192.168.5.0/24 - Cat1 > connected to R5 with Fa1/5 port L2 configuration (vlan 5) ; SVI on Cat1 is > 192.168.5.1 > > > > Everytime i stop my GNS3 and then start back from scratch, i get this error > after injecting the fallback bridging on Cat1 to bridge both subnets. > > > > I get this error on R5 to Cat1 leg, i don't see this on R10 to Cat1 leg. > > > > It goes up and then goes down, it's flapping. > > > > Cat1(config)# > > *Mar 1 00:20:53.703: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 1: Neighbor > 192.168.5.5 (Vlan5) is up: new adjacency > > Cat1(config)# > > *Mar 1 00:22:13.187: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 1: Neighbor > 192.168.5.5 (Vlan5) is down: Interface Goodbye received > > Cat1(config)# > > *Mar 1 00:22:15.999: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 1: Neighbor > 192.168.5.5 (Vlan5) is up: new adjacency > > Cat1(config)# > > *Mar 1 00:23:35.511: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 1: Neighbor > 192.168.5.5 (Vlan5) is down: retry limit exceeded > > Cat1(config)# > > *Mar 1 00:23:38.131: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 1: Neighbor > 192.168.5.5 (Vlan5) is down: Interface Goodbye received > > Cat1(config)# > > *Mar 1 00:23:41.563: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 1: Neighbor > 192.168.5.5 (Vlan5) is up: new adjacency > > > > > > Cheers! > > Antonio > > > > > -- > Wouter Prins > [email protected] > 0x301FA912 > -- Bryan Bartik CCIE #23707 (R&S), CCNP Sr. Support Engineer - IPexpert, Inc. URL: http://www.IPexpert.com
