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Cisco 3550 (SMI) High CPU Usage, attack? virus?

velocityservers
Level 1
Level 1

I'm trying to track down strange CPU spikes as traffic increase. Right now, Fa0/1 is doing 5mbit in/5mbit out, and CPU is at 45 percent. I'm not running anything special (just snmp, no web, 1 static route to switch traffic to a gateway)

Fa0/1 is our uplink to our companies border router.

Fa0/2 - 0/6 are in use, they don't do much traffic, all a couple of mbit, nothing more.

sh proc cpu doesnt show -any- high processes at all.

Ideas?

1 Reply 1

didyap
Level 6
Level 6

Have a check on CAM entries when the problem occurs and put a sniffer to see what kind of traffic is creating the problem.