The router supports the MPLS entropy label, as specified in RFC 6790, on RFC 3107 BGP labeled routes. LSR nodes in a network can load-balance labeled packets in a more granular way than by hashing on the standard label stack. For more information, see the 7450 ESS, 7750 SR, 7950 XRS, and VSR MPLS Guide.
Entropy Label Capability (ELC) signaling is not supported for labeled routes representing BGP tunnels. Instead, ELC is configured at the head end LER using the configure router bgp override-tunnel-elc command. This command causes the router to ignore any advertisements for ELC that may or may not be received from the network, and instead to assume that the whole domain supports entropy labels.