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2600 Cisco router error message

haocan
Level 1
Level 1

From the console screen, Cisco 2600 displayed late collision error messages every 20 sec. Below is the exact snapshot of it. Any help to stop the error would be appreciated.

TCO_2600>sh ip route

Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP

D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area

N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2

E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP

i - IS - IS, L1 - IS - IS level - 1, L2 - IS - IS level - 2, * - candidate default

U - per - user static route, o - ODR

Gateway of last resort is 192.168.10.1 to network 0.0.0.0

I 192.168.30.0/24 [100/8576] via 192.168.20.2, 00:00:03, Serial0/0

C 192.168.10.0/24 is directly connected, Ethernet0/0

192.168.20.0/24 is variably subnetted, 2 subnets, 2 masks

C 192.168.20.0/24 is directly connected, Serial0/0

192.168.20.2/32 is directly subnetted, Serial0/0

S * 0.0.0.0/0 [1/0] via 192.168.10.1

TCO_2600>

% AMDP2 - FE - 5 - Latecoll : AMDP2/FE<0/0>, Late collision

% AMDP2 - FE - 5 - Latecoll : AMDP2/FE<0/0>, Late collision

% AMDP2 - FE - 5 - Latecoll : AMDP2/FE<0/0>, Late collision

% AMDP2 - FE - 5 - Latecoll : AMDP2/FE<0/0>, Late collision

% AMDP2 - FE - 5 - Latecoll : AMDP2/FE<0/0>, Late collision

% AMDP2 - FE - 5 - Latecoll : AMDP2/FE<0/0>, Late collision

Thanks,

Hao

2 Replies 2

Craig Norborg
Level 4
Level 4

This is actually a symptom of another problem. Usually of bad cabling (possibly too long) or too many hubs deep in the network. It could also be a bad NIC on some system in the network.

I would first try changing the cabling between the router and the switch/hub that its connected to. After that, I would look deeper into your network to try and figure out if you have too many hubs deep in your network.

I would probably also verify the duplex and speed settings of the devices on the ports getting the late collisions.... I seem to remember problems of this type (though it shouldn't be late collisions), for some reason.

Russ.W