I see this sometimes when someone complains about poor network performance. There is a loop in the network and its driving performance to the ground. Finding it is sometimes a pain, and I wont cover that in this post. But how can you know for sure if there is a loop?
FCX624 Switch#sho cpu-utilization
99 percent busy, from 15352245 sec ago
It's been more than 50 hours since last call, the CPU utilization
data collected may have wrapped around and result in high
utilization
1 sec avg: 1 percent busy
5 sec avg: 1 percent busy
60 sec avg: 1 percent busy
300 sec avg: 1 percent busy
How can you know there isnt a loop?
FCX624 Switch#sho cpu-utilization
1 percent busy, from 15 sec ago
1 sec avg: 1 percent busy
5 sec avg: 1 percent busy
60 sec avg: 1 percent busy
300 sec avg: 1 percent busy
