Re: Enabling MLS QoS ON 6500 Running IOS 12.2(18)SXD1
two imp points.
1. When QoS is enabled, enter the "no mls qos channel-consistency" port-channel interface command to support EtherChannels that have ports with and without strict-priority queues.
2. Whenever you enable qos , always make sure to do classification. W/o classification , qos can hurt more then it can help. With qos enabled , the ports go into untrusted mode and all traffic ends up mapping to one queue instead of utilizing several queues for different classes. So make sure you do classification ( classification can be done by enabling trust states or through qos acls / policy maps ).
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