Change MTU for interface and check for too-large packets (Cisco)
Check for packets exxeeding MTU
The number of packets exceeding MTU are listed under the giant counter
on the interface:
cloud.net#sh int BVI1 | i giant
Received 0 broadcasts, 0 runts, 85 giants, 0 throttles
Change MTU
en
conf t
int dsl0
mtu <mtu in bytes>
exit
copy running-config startup-config