ECMP and weighted ECMP into RSVP-TE and SR-TE LSPs is supported for Ipipe and Epipe spoke SDPs terminating on IP interfaces in an IES or VPRN, or for spoke SDP termination on a routed VPLS. It is also supported for SDPs using LDP over RSVP tunnels. Weighted ECMP is configured under the SDP used by the service, as follows:
config
service
sdp <sdp-id>
[no] weighted-ecmp
Default: no weighted-ecmp
When a service uses a provisioned SDP on which weighted ECMP is configured, a path is selected based on the configured hash. Paths are then load balanced across LSPs used by an SDP according to normalized LSP load balancing weights. If one or more LSPs in the ECMP set to a given next hop has no load-balancing-weight value configured, then regular ECMP spraying is used.