The MPLS Topology Server uses the “LSP” class to create instances of the discovered TE tunnels, TE LSPs, P2MP LSPs, subLSPs, and LDP LSPs.

TE tunnels and a P2MP LSPs are compound objects that contain primary/backup/secondary TE LSPs and subLSPs, respectively. As such, neither a TE tunnel nor a P2MP LSP has LSP hops, and neither is directly associated with any interfaces.