This section describes PCEP support of PCE Client-initiated (PCC-initiated) RSVP-TE LSP. The PCEP support of an RSVP-TE LSP provides the following modes of operation:
PCC-initiated and PCC-controlled
PCC-initiated and PCE-computed
PCC-initiated and PCE-controlled
Each primary and secondary path is assigned its own unique path LSP-ID (PLSP-ID). PCC indicates to PCE the state of each path (both up and down) and which path is currently active and carrying traffic (active state).
The PCEP support of an RSVP-TE LSP differs from that of an SR-TE LSP in that PCE initiated RSVP-TE LSPs are not supported.