4506 reboots

Unanswered Question
Feb 16th, 2007

Good afternoon,

I have 6 4506 on my network and have 3 SUPV-10Ge that have rebooted on different chassis ???

my IOS version is 12.2(25)EWA5.

I have noticed one thing is that my CPU History is very high, please have a look on it.

Thakns in advance for your help


I have this problem too.
0 votes
  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 5 (1 ratings)
hoogen_82 Sat, 02/17/2007 - 23:30

Could you also attach the show proc mem command output. I could pin point the problem with that output.



rduke Fri, 02/16/2007 - 12:31

See if you can tell what the switch is busy with by typing in show process. I recently had a 4503 at 99%. Show process indicated it was busy with IGMP. The only problem was that I should not have seen IGMP traffic. I sniffed the LAN for IGMP and found that a bug in the 1310 bridge IOS was causing the problem.

By the way, there is an IOS bug that can crash your 4500 when you type show cdp nei det. Show cdp nei is OK, but the detail crashes them sometimes. I have not seen it fixed in an IOS release for the 4500 yet.

robert-meyer Mon, 02/19/2007 - 10:18

Funny, we had the same thing happen with two 4506 with SupIV's. It appear that there is a problem with 12.2(25)EWAxx.

In my case it was 12.2(25)EWA7 - which has been pulled and replaced with 12.2(25)EWA8. It's been a week and so far so good. But that MAY not be enough time as our reboots were occuring between 5 and 9 days.

hoogen_82 Mon, 02/19/2007 - 18:31

Hi Robert,

The replacement for 12.2(25)EWA7 was given to be EWA8 not because the switch reboots or high CPU utilization. This was actually a result of bug causing arp issues.

If you are still expierencing high cpu do post your show proc cpu output. There are several other problems which may not have been rectified by upgrading.



ogor Tue, 02/20/2007 - 01:54

Hummm, I think you right

I will check with my customer

thanks a lot.



This Discussion