1. RFC5440[PCEP]
    • Open and Keepalive
    • PCReq
    • PCRep
    • PCNft
    • PCErr
    • Close
  2. draft-ietf-pce-gmpls-pcep-extensions-11 不对称业务请求
  3. LMP主要用来邻居节点链路发现,OSPF通过洪泛发现拓扑,PCEP discovery(PCED)消息来找到pce位置
  4. RFC4657: stateful pce
  5. pce-initiation: draft-ietf-pce-pce-initiated-lsp-10 首节点建路
  6. pce-ls: draft-dhodylee-pce-pcep-ls-08 取代ospf,但有bgp-ls(RFC7752)
    • The fastest way for a PCE to be updated on TED changes is via a direct interface with each network node and with incremental update from each network node with only the attribute that is modified.
  7. pce-cc: draft-ietf-teas-pce-central-control-05 改水平信令(串行发放)为垂直信令(并行发放)
  8. Hierarchical-PCE[RFC6805]
  9. draft-ietf-pce-applicability-actn-00