High CPU utilization in 6513 core switches

hebaelshahat · ‎04-09-2012

Hello,

we have two 6513 core switches redundant to each other by using HSRP and MST. Currently we have a problem in a CPU as it's high in both cores as appeared in the following logging message:

1: 04/09/12 16:06:20 7/-1: MAJ, GOLD,

test_sp_rp_inband_ping[7]: diag_hit_sp_sys_limit. SP-RP Ping Test skipped. Reason(s): netint_thr_active[1].

2: 04/09/12 16:04:27 7/-1: MAJ, GOLD,

test_sp_rp_inband_ping[7]: diag_hit_sp_sys_limit. SP-RP Ping Test skipped. Reason(s): RP CPU is busy (94% util).

3: 04/09/12 15:58:38 7/-1: MAJ, GOLD,

test_sp_rp_inband_ping[7]: diag_hit_sp_sys_limit. SP-RP Ping Test skipped. Reason(s): RP CPU is busy (94% util).

4: 04/09/12 15:57:18 7/-1: MAJ, GOLD,

test_sp_rp_inband_ping[7]: diag_hit_sp_sys_limit. SP-RP Ping Test skipped. Reason(s): RP CPU is busy (100% util).

5: 04/09/12 15:42:22 7/-1: MAJ, GOLD,

test_sp_rp_inband_ping[7]: diag_hit_sp_sys_limit. SP-RP Ping Test skipped. Reason(s): RP CPU is busy (94% util).

6: 04/09/12 15:38:34 7/-1: MAJ, GOLD,

test_sp_rp_inband_ping[7]: diag_hit_sp_sys_limit. SP-RP Ping Test skipped. Reason(s): RP CPU is busy (81% util).

7: 04/09/12 15:37:10 7/-1: MAJ, GOLD,

test_sp_rp_inband_ping[7]: diag_hit_sp_sys_limit. SP-RP Ping Test skipped. Reason(s): RP CPU is busy (100% util).

8: 04/09/12 15:20:22 7/-1: MAJ, GOLD,

test_sp_rp_inband_ping[7]: diag_hit_sp_sys_limit. SP-RP Ping Test skipped. Reason(s): RP CPU is busy (96% util).

9: 04/09/12 15:18:40 7/-1: MAJ, GOLD,

test_sp_rp_inband_ping[7]: diag_hit_sp_sys_limit. SP-RP Ping Test skipped. Reason(s): RP CPU is busy (97% util).

Could you Please advise the reason of that.

Attached is the output of the "show processes cpu"

Pulkit Nagpal · ‎04-09-2012

Hello Heba,

The CPU is high because of Interrupt. You might want to check this page for guidance:

http://www.cisco.com/en/US/products/hw/switches/ps708/products_tech_note09186a00804916e0.shtml#situations

Also, this document which teaches you how to capture traffic going to CPU:

https://supportforums.cisco.com/docs/DOC-15608

Hope this helps,

Pulkit

hebaelshahat · ‎04-11-2012

Thanks a lot Pulkit for your reply, I'll check them and feed you back.

ldominguezhe · ‎01-10-2017

Hello Heba, could you please tell me if find a solution for this issue?. In this moment i have a similar problem.

Best regards from Chile!