PCEP Extensions to support BFD parameters

This document proposes extension to PCEP to configure LSP parameters. Some of LSP parameters are needed to configure S-BFD for candidate paths. Each candidate path is identified in PCEP by its uniquely assigned PLSP-ID. The mechanism proposed in this document is applicable to to all path setup types. This extension can work with ifferent PCEP Path Setup Types but especially suitable for Segment Routing (SR-MPLS, SRv6)..