Memory Excessive Fragmentation ???

[gianfranco DI SANTO]

Hello Everybody ,

I've received from our management station the following message : Memory excessive fragmentation, Someone could you say me if they are some commands for throubleshoot this error and see the memory status of the switch.

The running platform is :  WS-C6509  with WS-X6K-SUP2-2GE   supervisor.

thanks in advance

gianfranco

[Giuseppe Larosa]

Hello Gianfranco,

you should use

sh proc mem

example

sh proc mem
Processor Pool Total:  168488064 Used:   69705432 Free:   98782632
      I/O Pool Total:   35651584 Used:    9616800 Free:   26034784

PID TTY  Allocated      Freed    Holding    Getbufs    Retbufs Process
   0   0   72180632    8760800   58147560          0          0 *Init*         
   0   0      15824  175449416      15824          0          0 *Sched*        
   0   0 1824137536 1763277992     690112    8978216          0 *Dead*   

taken from a device like yours

Hope to help

Giuseppe

[gianfranco DI SANTO]

thanks for your message

[lamav]

Gianfranco:

You have to investigate why the memory allocation is fragemented in the first place. It could be a result of a DoS attack on the control plane, which is pretty easily addressed with CoPP.

Or you can be using a dated version of IOS. An upgrade may be in order.

Sometimes something as simple as a reboot clears the memory buffers and clears the problem....

HTH

Victor