At 6:24 AM +0000 8/3/03, Zsombor Papp wrote:
>Howard C. Berkowitz wrote:
>>  When you consider interface buffers are allocated to each
>>  subinterface
>
>Which command displays information about the buffers allocated to the
>subinterfaces?

Zsombor, interesting observation. I will have to check it; there may 
have been an IOS change. I _know_ I've run out of buffers on 2500s 
under IOS 11x by assigning too many p2p subinterfaces.

If the IOS has changed to buffer on a physical interface basis only, 
that may bring up different performance issues as a large number of 
subinterfaces contend for a limited number of buffers.

>
>XXX#sh ip int br | inc Serial
>Serial4/0                  unassigned      YES manual up                  
>up
>Serial4/0.3                172.168.1.1     YES manual up                  
>up
>Serial4/0.4                172.168.1.5     YES manual up                  
>up
>Serial4/1                  unassigned      YES manual administratively down
>down
>Serial4/2                  unassigned      YES manual administratively down
>down
>Serial4/3                  unassigned      YES manual administratively down
>down
>XXX#sh buffer | inc Serial   
>Serial4/0 buffers, 512 bytes (total 96, permanent 96):
>Serial4/1 buffers, 512 bytes (total 96, permanent 96):
>Serial4/2 buffers, 512 bytes (total 96, permanent 96):
>Serial4/3 buffers, 512 bytes (total 96, permanent 96):
>XXX#

I also remember the buffers in question to be 10 per subinterface, 
and around 1600 bytes. I wonder if we are thinking of two different 
pools?




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