C2960-lanbasek9-mz.122-44.se6.bin

Symptom: show processes cpu shows 40-60% usage from ScP process. Cause: Older pre-SE6 builds had inefficient STP timer handling. Solution: This is fixed in SE6. Upgrade. Also, tune hello-time and max-age if needed.

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After the switch reboots:

Symptom: crypto key generate rsa fails or SSH login hangs. Cause: Insufficient entropy or missing ip domain-name. Fix: C2960-lanbasek9-mz.122-44.se6.bin

ip domain-name lab.local
crypto key generate rsa modulus 1024
ip ssh version 2

(Note: 2048-bit keys are not supported in this IOS version.) Symptom: show processes cpu shows 40-60% usage from