Figure 1 shows an example of the FEC T-LDP session selection process.
T-LDP is used to signal MLDP over a core of RSVP-TE. The criteria for selecting the T-LDP session is as follows:
A T-LDP session with multicast enabled is selected.
An RSVP-TE LSP may be needed to terminate at the upstream node. The RSVP-TE far-end must be equal to the T-LDP peer. The FEC selects a T-LDP session that has an upstream direction RSVP-TE.
Figure 1. FEC T-LDP session selection
