What are the differences between the CoS traffic-manager options on the MX Series?
Use traffic-manager mode with the following options to configure CoS traffic manager mode of operation:
egress-only—Enables CoS queuing and scheduling on the egress side for the PIC that houses the interface. This is the default mode for an Enhanced Queuing (EQ) DPC on MX Series routers.
ingress-and-egress—Enables CoS queuing and scheduling on both the egress and ingress sides for the PIC. This is the default mode for IQ2 and IQ2E PICs on M Series and T Series routers. For EQ DPCs, you must configure the traffic-manager statement with ingress-and-egress mode to enable ingress CoS on the EQ DPC. By default, ingress CoS features are disabled on EQ DPCs. EQ DPCs support ingress queuing.
For more information, see MX Series Interface Module Reference