Hello, Just for clarification : On a 3560, a port in 'mls qos trust dscp' mode will derived his internal dscp from the dscp inside the received packet, so the egress packet (if dscp transparency is not activated) will also contains the dscp value.
If this is right I don't understand the solution of task 3.3 in volume3 lab 10 : Ensure that received EF-marked packets have correct marking when they leave the switch. SOlution : mls qos mls qos map cos-dscp 0 8 16 24 32 46 4_856 int f0/1 mls qos trust dscp If we trust dscp there's no need for cos to dscp marking. And only mls qos trust dscp answer to the question. Could you clarify ? Thanks
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