My home Internet facing cisco router Cisco 2621 is running at very high CPU.
My initial reaction is "DoS attack";
however, upon careful examination, I see this:
System flash directory:
File Length Name/status
1 16077544 c2600-ik9o3s3-mz.123-24a.bin
[16077608 bytes used, 175316 available, 16252924 total]
16384K bytes of processor board System flash (Read/Write)
C2621#sh process cpu | i Exec
105 2223900 2176090 1021 21.43% 24.24% 24.46% 0 Exec
132 22396 2900 7722 0.07% 0.61% 1.56% 66 Virtual Exec
In other words, the Exec process is
running at 25% cpu utilization.
I recently upgraded the router to
12.3.24a. I only have 1 telnet session
to the router. SNMP polling shows
cpu at 30% cpu utilization which traffics
is about 256k so not much.
Anyone know how to fix this? I repeatedly reboot the router but it
does not resolve the issue.