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7606 MPLS QoS question

I have built an MPLS core(2 x 7201, 2 x 7606), and I am trying to implement QoS matching on MPLS EXP.  I am using LLQ-priority for voice class-based guaranteed bandwidth for other traffic.  This works well on the 7201's, but I have discovered the 7606 does not support LLQ 'priority' or 'bandwidth' on WS-X6724-SFP interfaces.  This has really thrown a spanner in the works.

I've read the following docs for QoS on the 7600 - , however it appears queuing is based on DSCP or COS values?  Will this work since the L3 egress (WAN) interface I need to apply QoS is MPLS enabled?

Super Bronze

7606 MPLS QoS question


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The 7600, I believe, uses actual internal CoS markings for directing traffic to egress queues, but also believe you can map various DSCP markings into the internal CoS markings.  I.e., you can indirectly prioritize based on DSCP.  (I think something similar is possible if using MPLS EXP markings.)

Correct, the 6724 card doesn't support LLQ or bandwidth, but you can define on of the queues to be a priority queue, to take the role of LLQ, and other queues can be assigned weight (effectively giving them ratios like the CBWFQ bandwidth statement).  Compared to a 7200, you only have 4 queues to work with, and the LLQ like PQ doesn't offer an implicit policer.