SWITCH QOS

QUESTION

Ensure cos 5 is mapped to EF 46 . On port 1/0/1 which is  connected to HQ router , guarentee 16k for MGCP signalling traffic .Excess traffic should be marked to DSCP 8 and then transmitted .

 

ANSWER:

CHECK MY CONFIGURATION IS RIGHT OR NOT 

 

mls qos map cos-dscp 0 8 16 24 34 46 48 56

 

class-map MGCP-SIG

 match protocol MGCP

policy-map MGCP 

 class MGCP-SIG

  bandwith 16

 class class-default

  set dscp 8

 

interface fast thernet 1/0/1

 service-policy output MGCP

 

Comments

  • Assuming the switch to be a 3750 Switch i will would prefer to configure as follow

    mls qos

    mls qos map cos-dscp 0 8 16 24 32 46 48 56

    mls qos map policed-dscp 24 to 8

    access-list 100 permit tcp any any eq 2428

    acces-list 100 permit udp any any eq 2427

    class-map match-any MGCP-SIG 

    match access-group 100

    policy-map MGCP

    class MGCP-SIG

    set ip dscp cs3

    police 16000 8000 exceed-action policed-dscp-transmit

    class class-default

    int fa1/0/1

    service-policy input MGCP

    *** I am not sure of NBAR Functionality which your commands refers too ******** 

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