High CPU and slow response of cat 4006 switch

[vijay kumar]

Hi all ,

we r having Cat 4006 switch with SUP 2 . It is having more CPU util and below is the output ,

CPU utilization for five seconds:  81.91%

                      one minute:  81.08%

                    five minutes:  81.02%

PID Runtime(ms) Invoked    uSecs    5Sec    1Min    5Min    TTY Process

--- ----------- ---------- -------- ------- ------- ------- --- ---------------

1   2933730834  0          0         18.09%  18.92%  18.98% -2  Kernel and Idle

2013 Oct 10 10:01:18 IST +05:30 %IP-6-UDP_SOCKOVFL:UDP socket overflow from Source IP: 10.201.53.201, Destination port: 161

193 3542538145  3562126410 12557     46.35%  45.95%  45.55% 0   Packet forwardi

194 2340721807  1077747100 10237      5.67%   5.99%   5.54% 0   Switching overh

195 3261557550  2677388342 32532     13.52%  13.62%  13.65% 0   Admin overhead

> (enable) 2013 Oct 10 10:01:18 IST +05:30 %SYS-4-P2_WARN: 1/Ast

Moreover We are getting below error logs in console ,

2013 Oct 10 10:02:07 IST +05:30 %SYS-4-P2_WARN: 1/Astro 5-5(5/33-40) - management request timed out.

2013 Oct 10 10:02:23 IST +05:30 %SYS-4-P2_WARN: 1/Astro 4-5(4/33-40) - management request timed out

2013 Oct 10 10:03:11 IST +05:30 %SYS-4-P2_WARN: 1/Astro 3-5(3/33-40) - management request timed out.

Show version :

Mod Port Model              Serial #              Versions

--- ---- ------------------ -------------------- ---------------------------------

1   2    WS-X4013                                Hw : 3.2

                                                 Gsp: 8.4(11.0)

Is it Related to SUP engine failure problem ?

Kindly suggest,

Thanks!,

Regards,

Vijay

[Wilson Bonilla · Accepted solution]

Hello Vijay

If the errors are seen only on one Astro (or other stub ASIC) on one module, and a layer 2 loop is not occurring, the problem is most likely a faulty SERDES component on either the Supervisor or Line Card. Check if those symthopms are also experienced in your network, if the error messages is always point to Astro 5 on Module 3, 4 and 5, then either the fifth SERDES component on each module or the fourth SERDES component on the Supervisor is faulty.

A faulty SERDES component can cause intermittent connectivity for control traffic and data traffic to the Astro, resulting in timeouts.

Typically, however, the error message will be continuously displayed if the SERDES is faulty.

I suggest the following steps:

1- Set diagnostics level to complete.

2- Reset the linecard and supervisor.

3- Check the diagnostics results command and consider a rma based on the outputs.

Regards.

Wilson B

[Marvin Rhoads]

The Catalyst 4006 and Supervisor 2 were end of sales in 2004 and last date of support was May 2010 so an RMA will not be possible. (Reference)

If indeed hardware failure is the issue it may be time to upgrade this very old switch.