voice vlan

From: wsqccie@hotnail.com
Date: Wed Apr 16 2003 - 09:46:31 GMT-3


hi, guys
   If I have installed a voice vlan in 3550. and now I want to assign cost value 2 to the packets who has owned a old cost value, how can i do?
   mls qos trust cos command can class packets with CoS,and will assign port default cos to untagged packets , Mls Qos cos value overidde command seems to assign a cos value to the port. As I know, this is no other comand to assign a value to a packets. Do I need a policy-map to do so?

   BTW, the below is my other configuration for the require for changing the COS of data and coice to 1 , pls correct if needed.

switchport trunk encapsulation dot1q
 switchport trunk native vlan 2
 switchport mode trunk
switchport voice vlan 200
no ip address
mls qos trust cos
spanning-tree portfast
mls qos cos 1
mls qos cos overide---->mandory the all cos both voice and data to 1
switchport priority extend cos 1---->assign cos 1 to ip data , is it useful for override is working?
mls qos cos trust



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