QOS between two cat4506s

Unanswered Question
Jul 16th, 2008
User Badges:

Hello,


Question I have two cat4506s connected via an etherchannel. Do I need to enable "qos trust dscp" on the etherchannel interface to get markings from one switch to another? Since it is a trunk shouldnt it already accept the QOS tages and not wipe them?

  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 0 (0 ratings)
Loading.
Collin Clark Wed, 07/16/2008 - 11:52
User Badges:
  • Purple, 4500 points or more

You do not need to configure qos trust dscp on trunks. They will accept the tags and not re-write/remove them.

Marwan ALshawi Wed, 07/16/2008 - 19:06
User Badges:
  • Purple, 4500 points or more
  • Community Spotlight Award,

    Best Publication, December 2015

After you configure the access port queuing, you must also configure the uplink interfaces to the distribution, or core, switch. This involves enabling trust for Ethernet frames coming into the trunk port, enabling output scheduling, and manipulating the CoS-to-queue mapping entrance criteria, mapping the CoS values to the appropriate DSCP value



http://www.cisco.com/en/US/prod/collateral/switches/ps5718/ps708/prod_white_paper0900aecd80233956.html


rate if helpful

Actions

This Discussion