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Community Member

High cpu utilization in Cisco 6509E

Hi,

I have two core 6509 switches and in one switch utilization is continiously around 60%.. Attached the show process cpu output..

Kindly suggest me...

Thanks rajeev

12 REPLIES
Hall of Fame Super Silver

Re: High cpu utilization in Cisco 6509E

Hello Rajeev,

what are the devices doing?

what type of supevisor is installed

sh ip route summary

can tell how many routes are present.

the process that uses most is ip input so the first question is to check if IP traffic is processed by CEF

Hope to help

Giuseppe

Community Member

Re: High cpu utilization in Cisco 6509E

I have just attached below module details:

------------------ show module ------------------

Mod Ports Card Type Model Serial No.

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

1 48 CEF720 48 port 10/100/1000mb Ethernet WS-X6748-GE-TX SAL1137ZYH9

3 48 48 port 10/100/1000mb EtherModule WS-X6148-GE-TX SAL1134YAVY

4 48 48 port 10/100/1000mb EtherModule WS-X6148-GE-TX SAL1134YAW5

5 2 Supervisor Engine 720 (Active) WS-SUP720-3B SAD11330854

6 48 48 port 10/100/1000mb EtherModule WS-X6148-GE-TX SAL1134YAU9

9 48 48-port 10/100 mb RJ45 WS-X6148-RJ-45 SAL1136ZY3E

Mod MAC addresses Hw Fw Sw Status

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

1 001d.45ba.6e80 to 001d.45ba.6eaf 2.6 12.2(14r)S5 12.2(33)SXI1 Ok

3 001d.450f.06b0 to 001d.450f.06df 7.2 7.2(1) t_whit21@1.0 Ok

4 001d.450e.fd80 to 001d.450e.fdaf 7.2 7.2(1) t_whit21@1.0 Ok

5 0017.944a.8b28 to 0017.944a.8b2b 5.4 8.4(2) 12.2(33)SXI1 Ok

6 001c.5849.25a8 to 001c.5849.25d7 7.2 7.2(1) t_whit21@1.0 Ok

9 001d.4578.feb0 to 001d.4578.fedf 5.1 8.3(1) t_whit21@1.0 Ok

Mod Sub-Module Model Serial Hw Status

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

1 Centralized Forwarding Card WS-F6700-CFC SAL113703PK 4.0 Ok

5 Policy Feature Card 3 WS-F6K-PFC3B SAD113308E5 2.3 Ok

5 MSFC3 Daughterboard WS-SUP720 SAD113303RB 3.0 Ok

Mod Online Diag Status

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

1 Pass

3 Pass

4 Pass

5 Pass

6 Pass

9 Pass

Community Member

Re: High cpu utilization in Cisco 6509E

How to check if the traffic is processed by CEF?

Other thing i noticed is IOS-BASE is taking around 30-40 % of total cpu utilization continiously.. What is IOS-BASE? try to find in google but could not get the exect.

I will also attache the running configuration in following attachment.. please suggest best to reduce the cpu utilization..

Regards

Rajeev

Community Member

Re: High cpu utilization in Cisco 6509E

attached the running configuration and also other details in previous attachment.

Bronze

Re: High cpu utilization in Cisco 6509E

Hi.

I see that you have downloaded the modular image, but have not installed and unpacked it:

boot system flash bootdisk:s72033-adventerprisek9_wan-vz.122-33.SXI1.bin

The -vz in the middle of the name tells that it's the modular image.

When running on the modular image without installing (unpacking) it most processes are just shown like IOS BASE. You do not have the possibility to see the individual processes.

For that reason I would advice to either install the modular image or download and use the monolithic image (with -mz as part of the image name).

HTH, Ingolf

Community Member

Re: High cpu utilization in Cisco 6509E

Hi iyde,

Thanks for the help as i was wondering what is this IOS base process,One more request, kindly suggest the best possible and stable IOS based on the config.

Regards

Rajeev

Bronze

Re: High cpu utilization in Cisco 6509E

Hi;

Well, as I do not know your network in detail, including what kind of traffic you are running, then it will be a little too shaky for me to tell you what to run. However, you are already at SXI level and at maintenance release 1 (SXI1) so you should be fairly okay with your current code.

Should you want to upgrade, then you shall avoid SXI2 as it has been deferred due to a serious bug: CSCtb27643 - cat6000 Medium buffers leak on SP leading to crash in SXI2.

SXI3 has just passed Safe Harbor so it should be a good candidate for an upgrade.

HTH, and thanks for the rating!

Ingolf

Community Member

Re: High cpu utilization in Cisco 6509E

Hi Ingolf,

Just checked the safe harbor workroom but I can't find the SXI3 testresults. Only the testplan is there. What gives you the impression it passed safe harbor testing? Do you have a pointer?

Cheers,

Vincent

Bronze

Re: High cpu utilization in Cisco 6509E

Hi Vincent.

I got the info in a status update mail from the Safe Harbor team:

12.2(33)SXI3:

The latest SXI maintenance release 12.2(33)SXI3 has finished Safe Harbor testing successfully, and is a Safe Harbor recommended release.

Documents are being prepared now, and the target date for them to be available is November 20th. Another update will be sent once they are available for download.

HTH, Ingolf

Community Member

Re: High cpu utilization in Cisco 6509E

Hi Ingolf,

That is very good news. Glad to hear there is a SXI release which is extensively tested. We've had serious issues running SXI2 and SXI2a releases...

Again, thanks for the info!

cheers,

Vincent

VIP Super Bronze

Re: High cpu utilization in Cisco 6509E

How can an IOS version be Safe Harbor, when it was just released a week ago??

Reza

Community Member

Re: High cpu utilization in Cisco 6509E

The testplan is dated 9-oct-2009. I guess the safe harbor team got IOS SXI3 before it was released to the general public.

Vincent

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