- The primary function of a BGP speaking system is to exchange network reachability information with other BGP systems.
- RIB: Routing Information Base
Category: IETF
Internet Protocol(IP) RFC791
- The internet protocol implements two basic functions:
- addressing
- fragmentation
- The internet modules use the addresses carried in the internet header to transmit internet datagrams toward their destinations. The selection of a path for transmission is called routing.
pcep
- RFC5440[PCEP]
- Open and Keepalive
- PCReq
- PCRep
- PCNft
- PCErr
- Close
- draft-ietf-pce-gmpls-pcep-extensions-11 不对称业务请求
- 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
- RFC4657: stateful pce
- pce-initiation: draft-ietf-pce-pce-initiated-lsp-10 首节点建路
- 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.
- 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)
- Hierarchical-PCE[RFC6805]
- draft-ietf-pce-applicability-actn-00
rfc 4655 pce architecture
- TE information is not exchanged across the domain boundaries.
- Motivation of a PCE-Based Architecture
2.1 CPU-Intensive Path Computation
2.2 Partial Visibility - PCE is not considered to be a solution that is applicable to the entire Internet.