02-06-2012 12:46 AM - edited 03-16-2019 09:25 AM
Hi all
I am new to QOS, need a help on how to setup default class.
in following example, I know that trafic with dscp 0 will be placed in fair-queue, but what about packet with other DSCP value apart from CS3/EF. is there any command to reset all other packets to default value.
)# class-map match-any VOIP-RTP
)# match dscp ef
)# class-map match-any VOIP-CONTROL
)# match dscp cs3
)# policy-map VOIP-QOS-POLICY-OUT
)# class VOIP-RTP
)# priority bandwidth 90
)# class VOIP-CONTROL
)# bandwidth 30
)# class class-default
)# fair-queue
)# int s0/2/0:0
)# service-policy output VOIP-QOS-POLICY-OUT
Thanks.
Roy
02-06-2012 03:01 AM
find answer: Each class is evaluated in the order they were put into the policy-map and the last class in the policy-map is always the class-default. The class-default is in every policy-map by default and it cannot be removed. The class-default has a classification policy that matches all traffic that has not been identified by any other class in the policy
details:
02-06-2012 06:33 AM
Correct, basically all other markings will be stripped and traffic will go into default queue with DSCP 0.
HTH,
Chris
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