My remote site customer has a router that is having an unusually high number of
discard packets compared to other Internet routers with much higher utilization.
Their engineers are thinking that this is due to the fact that they have a 10 Gig
network and Gigabit-connected servers behind the router with a default 40-packet que-depth on the OC3 FIFO interface. They are thinking that it may not be deep enough to hold the packets during brief bursts coming in the Gig interface before going out their 155Mbps WAN interface.
What would be your opinion on changing the output queue depth on router's POS2/0 to a higher value,like 400? The max setting is 4096.
The configuration would be:
Their engineers are wanting to know if this would be an acceptable remedy to this
problem or if there is a Cisco-approved number for the hold-queue for an 155Mbps
circuit behind a 10-gig network.