. "Reference to the value of the EXP bits of the segment\nidentifier." . . . . . . "The value of the MPLS EXP (experimental) or Traffic Class bits that the\nSID statistics relate to. Packets received with a MPLS label value\nequal to the SID's MPLS label and EXP bits equal to the this value\nshould be counted towards the associated ingress statistics. Packets\nthat are forwarded to the destination MPLS label corresponding to the\nSID should be counted towards this value. In the egress direction, where\nforwarding follows a SID value that requires PHP at the local node,\npackets should still be counted towards the egress counters." .