Diffserv Support over MPLS
diffserv is supported today over MPLS
<draft-ietf-mpls-diff-ext-09.txt>
Neither more nor less than “plain old” diffserv
All of the mechanisms are available today to allow Diffserv QoS to be deployed in an MPLS network
Two methods defined:
Using the 3-bit EXP field in the MPLS header and mapping DSCP to EXP
“Label inferred CoS”: Mapping a label per-CoS