[c-nsp] %CPU_MONITOR

[Dan Mosneanu]

Hi all,

 

We have a 6009 equipped with:

Mod Ports Card Type                              Model              Serial
No.

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

  1    2  Cat 6k sup 1 Enhanced QoS (Active)     WS-X6K-SUP1A-2GE
SAL0539CB5W

  3   16  16 port 1000mb GBIC ethernet           WS-X6416-GBIC
SAD041406KY

  7   48  48 port 10/100 mb RJ-45 ethernet       WS-X6248-RJ-45
SAD040806EC

  9   48  48 port 10/100 mb RJ45                 WS-X6348-RJ-45
SAL0437156A

With PFC and MSFC 2 daughterboard 

 

Lately we have some problems with our box. Here are some lines from its log:

 

Jul 16 12:14:19: %CPU_MONITOR-6-NOT_HEARD: CPU_MONITOR messages have not
been heard for 30 seconds [1/1]

Jul 16 12:15:32: %CPU_MONITOR-6-NOT_HEARD: CPU_MONITOR messages have not
been heard for 30 seconds [1/1]

*Jul 16 12:14:19: %CPU_MONITOR-SP-2-NOT_RUNNING: CPU_MONITOR messages have
not been sent for 30 seconds [Spanning Tree 99%/99% (00:00:32.552 100%/99%)]
[Spanning Tree 00:00:29.624] [Compute load avgs 00:00:29.736] [PM Callback
00:00:29.780]

*Jul 16 12:14:19: %CPU_MONITOR-SP-2-NOT_RUNNING_TB: CPU_MONITOR traceback:
602B11A0 6061E05C 6061F08C 60620174 602487E0 6020E728 6021263C 0

*Jul 16 12:14:40: %CPU_MONITOR-SP-6-NOT_HEARD: CPU_MONITOR messages have not
been heard for 51 seconds [1/2]

*Jul 16 12:15:32: %CPU_MONITOR-SP-2-NOT_RUNNING: CPU_MONITOR messages have
not been sent for 30 seconds [Spanning Tree 100%/99% (00:00:32.708
100%/99%)] [Spanning Tree 00:00:29.128] [Compute load avgs 00:00:29.308] [PM
Callback 00:00:29.376]

*Jul 16 12:15:32: %CPU_MONITOR-SP-2-NOT_RUNNING_TB: CPU_MONITOR traceback:
602A91B8 6020E658 6021263C 0 0 0 0 0

*Jul 16 12:15:33: %CPU_MONITOR-SP-6-NOT_HEARD: CPU_MONITOR messages have not
been heard for 31 seconds [1/2]

 

Does "[Spanning Tree 99%/99% (00:00:32.552 100%/99%)]" means that the
Spanning Tree process is using al the CPU of the SUP and that is why
"CPU_MONITOR messages have not been sent" ? There are 34 vlans. STP is
running in rstp mode. The switch is the root for STP

After we reestablish the connectivity to the switch output of the show proc
cpu shows 0.00% utilization for spanning tree process. Overall CPU:
utilization for five seconds: 26%/20%; one minute: 20%; five minutes: 20%

 

Has anyone seen this before?

 

Regards, 

    Dan Mosneanu