are noticing a fairly high CPU load compared what we were used to on the older 
3550's.

It looks like we are punting packets like crazy...

cpu-queue-frames  retrieved  dropped    invalid    hol-block  stray
----------------- ---------- ---------- ---------- ---------- ----------
rpc               0          0          0          0          0
stp               234154     0          0          0          0
ipc               0          0          0          0          0
routing protocol  1871818    0          0          0          0
L2 protocol       208159     0          0          0          0
remote console    0          0          0          0          0
sw forwarding     14959846   0          0          0          0
host              305132     0          0          0          0
broadcast         1754197    0          0          0          0
cbt-to-spt        0          0          0          0          0
igmp snooping     369150     0          0          0          0
icmp              731133339  0          0          4          0
logging           0          0          0          0          0
rpf-fail          0          0          0          0          0
dstats            0          0          0          0          0
cpu heartbeat     2320747    0          0          0          0

I think crazy punting would go into the "sw forwarding" line (and deliver high latency to your customers), but you appear to have a big "icmp" line. Maybe you are just generating a lot of ICMP unreachables for the usual reasons, and maybe this is more difficult for a 3400 than it is for a 3550.

I would try to "deb plat cpu-queues software-fwd-q" (this is guaranteed to be a heavy debug for your CPU) to see what kind of packets the CPU is transmitting/receiving.

I know this is not much but hope this helps somehow.

                        Bergonz

--
Ing. Michele Bergonzoni - Laboratori Guglielmo Marconi S.p.a.
Phone:+39-051-6781926 e-mail: berg...@labs.it
alt.advanced.networks.design.configure.operate
_______________________________________________
cisco-nsp mailing list  cisco-nsp@puck.nether.net
https://puck.nether.net/mailman/listinfo/cisco-nsp
archive at http://puck.nether.net/pipermail/cisco-nsp/

Reply via email to