Is DiffServ code point (DSCP) classification of MPLS-tagged packets supported on the I-chip-based DPCs?
The DSCP classifier is supported on I-chip DPCs as shown in the following table.
DSCP Classifier Configuration
Layer 3 VPNs and VPLSs using an LSI routing instance
M320, M120, and MX Series
Configured under class-of-service routing-instances on the egress PE router.
Layer 3 VPNs using a virtual tunnel (VT) routing instance
Configured on the core-facing interface under class-of-service interfaces on the egress PE router.
(not supported on IQE and MX Series when ingress queuing is used)
Configured on the ingress core facing interface under class-of-service interfaces on the P or egress PE router.
VPLS using a VT routing instance
MPLS forwarding when number of labels in the MPLS label stack is more than two
For more information, see MX Series Interface Module Reference