Help - a lot of undersize errors

dahua.huang · ‎11-19-2007

Hi,

we have a cisco 3560 channel/trunk to core 4506.

when I type in "show interface counters errors" there are a lot of undersize errors on these channel ports. and my boss let me finger out why.

and other switch (cisco 2950) have the same proble if this port trunk to Juniper/Netscreen VPN server.

Is there anyone can help me. I am very appreciate.

CISCO 3560 :12.2(25r)SE1

Adam Frederick · ‎11-19-2007

Something is generating packets <64 bytes. May want to sniff the trunk and check trunk config on both devices. has the config chg'd on either interface recently?

dahua.huang · ‎11-19-2007

Hi,

Thanks for you reply.

I am just new guy to this company, and it looks they have this problem for a long time.

I check the config, it looks OK. and now I found this issue and boss give me a headache to let me fix it.

here is the config

Cisco 4506

interface Port-channel2

switchport