Hello,
we've MAN based on Cat 6500 and Cat 3750, we're using QinQ as one of our backbone technologies.
We need to implement "trust cos" on QinQ port for one of our customers (= rewrite CoS bits from the internal 802.1q header (coming from customer) to the external 802.1q header). Do you have some idea how to deal with it ?
We've done several experiments, but we haven't found any solution except CoS-to-CoS map, which is "Cat 6500 only" and "per-group-of-ports" feature. We need to implement it per port (only for this cusomer).
We're looking for this because customer is using MPLS and we need to "trust QoS" as it is set by the customer. Customer is able to set
- DSCP in IP header
- MPLS exp. bits
- CoS in dot1q header.
Have you ever come accross something like this?
Have you found any solution?
Thanks
Jan Klicka, SITMP
