I have several 6500 Sup720s running IOS 12.2(18)FX7.
'MLS QOS' is configed globally and 'mls qos trust dscp' is on all the interfaces. Other than that everything else is default as far as MLS qos is concerned. I've enabled MLS QOS so the switches will trust the dscp markings on voice packets and to also set up the appropriate priority queue for the voice packets traveling through the switches.
Now I'm trying to learn what all the counters mean and have a question about one of them. Here is the output of 'show mls qos':
ROC-6504-DW-A#sh mls qos
QoS is enabled globally
Policy marking depends on port_trust
QoS ip packet dscp rewrite enabled globally
Input mode for GRE Tunnel is Pipe mode
Input mode for MPLS is Pipe mode
QoS Trust state is DSCP on the following interface
Is it possible that this 6504 receives DSCP-marked packets via non-trunk links (or via native VLAN of the 802.1Q trunk)? If yes, it will (re)mark the COS on the outgoing trunk link using DSCP-to-COS map.
Hi everyone, I would like to thank you in advance for any help you can provide a newcomer like myself!
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