Just a quick question.....
Just about to configiure QoS on a large campus for Voice. The Core switches have Firewall Service Modules (FWSM) installed so that each network segment is effectivley a DMZ with rules configured to permit/deny traffic flows between networks.
Does anyone know how QoS is handled through the Firewall Service Modules.?
Do they retain the DSCP values and pass them on or are they reset to zero.?