Which configuration for the IP DSCP value in the ToS byte to 5 with Expedited Forwarding is correct?

Which configuration for the IP DSCP value in the ToS byte to 5 with Expedited Forwarding is correct?
A. policy-map policy1class class1 set ip dscp 5 class class2 set ip dscp ef
B. policy-map policy1class class1 set ip dscp 3 class class2 set ip dscp ef
C. policy-map policy1class class1 set ip dscp ef class class2 set ip dscp 5
D. policy-map policy1class class1 set ip dscp 5 class class2 set ip dscp CS3

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7 thoughts on “Which configuration for the IP DSCP value in the ToS byte to 5 with Expedited Forwarding is correct?

  1. set ip precedence 2
    class biz-app
    set ip precedence 0
    class class-default
    set ip precedence 1
    policy-map qos-out
    class p-voice
    set ip dscp ef
    class p-video
    set ip dscp af41

  2. Router(config-pmap-c)# set ip dscp ip-dscp-value

    Specifies the IP DSCP of packets within a traffic class. The number is in the range 0 to 63.

  3. I agree with answer A,
    “set ip dscp”; Marks a packet by setting the IP DSCP in the ToS byte.
    Expedited Forwarding (EF) PHB

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