I have a pair of 6509's with Sup720-10g's. They are configured in a VSS cluster. We are seeing some very strange EIGRP behavior. When I do a
show ip eigrp neighbors
H Address Interface Hold Uptime SRTT RTO Q Seq
(sec) (ms) Cnt Num
2 10.0.0.2 Vl123 31 00:00:32 111 666 0 316523
3 10.0.0.1 Vl123 45 00:21:25 63 567 0 627040
1 10.0.0.65 Vl123 14 15:35:18 60 540 0 168147
0 10.0.0.130 Vl123 14 23:10:40 1 300 0 349168
I am not receiving a hello every 5 seconds from 10.0.0.1 and 10.0.0.2. I changed the ip hold-time eigrp 1 60 on Interface Vlan123 on both 10.0.0.1 and 10.0.0.2 in an attempt to keep the neighbors up longer. That helped somewhat, but I still lose those neighbors periodically (hold time expired). I am also missing a neighbor completely. 10.0.0.129 should be in this list. All the other neighbors have no trouble whatsoever seeing each other and staying up. I have tried pinging 220.127.116.11 from 10.0.0.1, 10.0.0.2, and 10.0.0.129 and I get responses from all 5 neighbors every time. I don't get it. It is almost as if the 6509 is dropping the packets or something.
10.0.0.1 is a Catalyst 4506
10.0.0.2 is a Catalyst 4506
10.0.0.65 is a pair of Catalyst 6509 with Sup720-10g's.
10.0.0.129 is a Catalyst 4506
10.0.0.130 is a Catalyst 4506
10.0.0.193 is the problem switch. It is a pair of Catalyst 6509 with Sup720-10g's
I have checked nearly everything. K values match on all devices. I found bug CSCsd31503, but the workaround did not work. There is also no fixed version of the software for the SUP720-10g.
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