Catalyst 2960S problem

[allen_huang]

Hi,

I have 4 Catalyst 2960S, and they have the same problem.

The CPU usage is 60% before I telnet them.

It fell to 20% when I using telnet to login. And raised to above 60% after logout.

This is the output of 'show proc cpu' when I login.

This is the output of 'show proc cpu' 2 mins later.

And the traffic chart will like this.

How can I to solve this problem?

The hardware & software version is:

WS-C2960S-48TS-L   12.2(53)SE1           C2960S-UNIVERSALK9-M

Many thanks for any comments.

[guidobrinkmannl]

Hi Guys,

Also my first post:-)

We have the same problem on our stacks.

1 52    WS-C2960S-48FPD-L  12.2(55)SE2           C2960S-UNIVERSALK9-M

2 52    WS-C2960S-48FPD-L  12.2(55)SE2           C2960S-UNIVERSALK9-M

3 52    WS-C2960S-48FPD-L  12.2(55)SE2           C2960S-UNIVERSALK9-M

4 52    WS-C2960S-48FPD-L  12.2(55)SE2           C2960S-UNIVERSALK9-M

CSCth24278 is still not solved in 12.2(58)SE or SE1 (according to the release notes)

I could not download the release notes of SE2 (it presents SE instead)

I'll upgrade 2 of our 9 stacks this weekend to the new c2960s-universalk9-mz.150-1.SE.bin (posted on july 26, 2011)

No words of CSCth24278 in this document!

lets see and wait!

Guido

Message was edited by: Guido Brinkman [typos]

[guidobrinkmannl]

I upgraded 3 uninstalled stacks: util. went down!

We installed these 3, lets see if they also perform under load!

[sunshuangbeijing]

I have 4 ws-c2960s-24ts-L too.

but only 2 C2960 exist this problem like you.(the IOS the same to you )

other 2 C2960 haven't this problem.the IOS is 12.2(55)SE3  UNIVERSALK9-M .

I think update to 12.2(55)SE3 can be solve this problem.

hope can help you

.

[allen_huang]

I just got mail notification this morning related to this bug.

• Bug Id : CSCth24278
  Headline : High CPU when no Console/VTY activity
  What changed : Fixed In Versions
  Fixed In Versions : 12.2(55)SE3, 12.2(55)EX3
  Detailed Bug Description: https://www.cisco.com/cisco/psn/bssprt/bss?searchType=bugIdSearch&bugId=CSCth24278

FYI.

[Ricardo Ferreira]

thanks for your reply. We have this problem too.