We have a ME-3400 with IOS Metro IP.
The giga0/1 and gi0/3 ports are configured all the same with qos policing (input policy-map) and port shaping+Class Based Priority queueing (output policy-map).
We have no drop on gi0/1 output.
On gi0/3 output the drop is about 1-2% although the traffic (for example 10Mbps) is much less than the port shaped bandwidth (for example 200Mbps).
Can anyone help me?