I am trying to compare the behaviour of the Linux DiffServ implementation with that of Cisco, in DSCP remarking for traffic policing. As I understand it, the DSCP is marked at the egress interface (parent queue), based on the class that packets are in. I am looking at what happens at an inter-AS boundary. DSCP marked traffic coming into the Edge Router need to be policed and remarked: e.g. EF traffic up to 2Mbps marked as EF EF traffic beyond 2Mbps should be policed and remarked as BE. Is there a way to do this remarking before the traffic is segregated into egress queues? Cheers Andrew
