The router supports both the MPLS entropy label (RFC 6790) and the Flow Aware Transport label, known as the hash label (RFC 6391). LSR nodes in a network to load-balance labeled packets in a more granular way than by hashing on the standard label stack. See the 7450 ESS, 7750 SR, 7950 XRS, and VSR MPLS Guide for more information.
The entropy label is supported for Epipe and Ipipe spoke-SDP termination on IES interfaces. To configure insertion of the entropy label on a spoke-SDP that terminates on the service, use the entropy-label command in the spoke-sdp context of a specific interface.
The hash label is also supported for Epipe and Ipipe spoke-SDP termination on IES services. Configure it using the hash-label command in the spoke-sdp context for an IES interface context.
Either the hash label or the entropy label can be configured on one object, but not both.