How to enable priority queueing in catalyst 6500 Sup720

Question

Hi,
I need to enable PQ on L2 trunk port for ingress VoIP traffic with DSCP EF set.Is the procedure related to Tx que settings..
Thx
Kas

Answer 1

Hi there
WARNING: Noob alerT! Do not deploy this unless you really really think it works but I think I covered most of the things.
(config)#mls qos
!Enable Qos Globally
(config)#mls qos trust dscp
!Tell Qos what to trust
(config)#class-map MATCH_VOIP match-all
!define the name of your class map and tell it what to match
(config-cmap)#match ip dscp *yourdscpvaluehere*
!match the dscp value you want
(config)#policy map VOIP_ON_STEROIDS
!Give the Qos policy a name
(config-pmap)#class MATCH_VOIP
!What should the policy do ? put in the name of your class map
(config-if)#service policy VOIP_ON_STERIODS in
!assign the policy to the interface you want
(config-if)#priority-group 1
!assign a priority list to the interface this enables priority queuing (was this your question?)
(config)priority-list 1 protocol ip high map VOIP_ON_STEROIDS
!configure what goes into the high priority queue
I must say here that I have used in place of the map command an accesslist and successfuly configured something similar. I just hope this works out for you. Atleast it would get you started out :)
HTH!