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1. (WO2013152718) PATH COMPUTATION ELEMENT COMMUNICATION PROTOCOL SESSION ESTABLISHMENT METHOD AND DEVICE

Pub. No.:    WO/2013/152718    International Application No.:    PCT/CN2013/073984
Publication Date: Fri Oct 18 01:59:59 CEST 2013 International Filing Date: Wed Apr 10 01:59:59 CEST 2013
IPC: H04L 29/06
H04L 12/70
Applicants: ZTE CORPORATION
中兴通讯股份有限公司
Inventors: CAO, Xuping
曹徐平
WANG, Zhihong
王志宏
LU, Gang
卢刚
QIAN, Jia
钱佳
Title: PATH COMPUTATION ELEMENT COMMUNICATION PROTOCOL SESSION ESTABLISHMENT METHOD AND DEVICE
Abstract:
Disclosed are a path computation element communication protocol (PCEP) session establishment method and device. The technical solution comprises: at a PCC or PCE node device side, before needing to establish a PCEP session, allocating a TCP connection communication end attribute to a PCC or a PCE at either end in the manner of static configuration/dynamic designation or election mechanism automatic allocation; or detecting whether to establish a TCP connection relationship, if not, actively connecting the opposite end, and if a plurality of TCP connection relationships has been established, simultaneously cutting off a plurality of connections at both ends, and reinitiating a TCP connection after waiting a random time respectively. The present invention achieves the establishment of a PCEP session in the multi-PCE cooperation computation scenario under the condition of meeting two constraint conditions which are specified by a protocol.