[nsp] Catalyst 3508 -- are they wirespeed?

[MichaelLyngbøl]

On 03.05.2003 18:32:59 -0400, Deepak Jain wrote:
> 
> We are seeing a port on a 3508 picking up ignores:

Which port?

> Last clearing of "show interface" counters 00:01:27
> Queueing strategy: fifo
> Output queue 0/1024, 0 drops; input queue 0/1024, 0 drops
> 5 minute input rate 610373000 bits/sec, 73028 packets/sec
> 5 minute output rate 45548000 bits/sec, 56863 packets/sec
>    6567557 packets input, 2620013000 bytes, 0 no buffer
>    Received 75 broadcasts, 0 runts, 0 giants, 0 throttles
>    0 input errors, 0 CRC, 0 frame, 0 overrun, 8585 ignored
>    0 watchdog, 44 multicast, 0 pause input
>    5109397 packets output, 507372844 bytes, 0 underruns
>    0 output errors, 0 collisions, 0 interface resets
>    0 babbles, 0 late collision, 0 deferred
>    0 lost carrier, 0 no carrier, 0 pause output
> 
> At a pretty furious pace, flowcontrol makes no difference and the box is
> really only taking this port's traffic in and showing it out, nothing else
> is going on.
> 
> Any ideas? Is this a hardware buffer limitation and if so, would a 3550-12G
> really help?

Gi0/1 - Gi0/6 share one ASIC and Gi0/7 + Gi0/8 share another ASIC.

Move your heavily utilized ports to Gi0/7 or Gi0/8 as the support full
wire rate switching.

/Michael

-- 
Michael Lyngbøl -- michael at lyngbol dot dk
Network Manager, AS3292 TDC, IP·backbone