- Bronze, 100 points or more
I have a 4507R with a Sup-V that crashed yesterday morning. My bandwidth monitoring showed that a downstream switch connected to an HP BladeEnclosure was transmitting about 900Mbps at the time of the crash. My 'show ver' output says "System returned to ROM by abort at PC 0x0". Does anyone know what that means, and where I should look for more information? During the time the downstream switch was transmitting 900Mbps, the CPU utilization on the 4507R was 99-100% -- I couldn't maintain connectivity with the switch long enough to ever find out much of anything. I had to go unplug the fiber cable from the HP switch (Cisco CBS3020) before things calmed down.
I was able to see from 'show proc cpu' that it was the Cat4K Mgmt LoPri that was utilizing the CPU, but I couldn't look into further due to connectivity problems. I was able to grab some logs from my syslog server that showed a number of MACFLAP_NOTIF from 4 other blade switches connected to this 4507R, but I didn't receive anything from the 4507R until it rebooted.
Any ideas on this I can look for to help troubleshoot the cause of the issue?
Thanks in advance,