ASON中信令协议RSVP_TE建立LSP的研究

Study on LSP Building in ASON with RSVP_TE

文章对自动交换光网络(ASON)信令协议——基于流量工程扩展的资源预留协议(RSVP_TE)的主要内容及工作机制进行了分析研究,它主要是在ASON网络中动态地完成建立、保持和删除标签交换路径(LSP)。LSP的建立时间与信息传输时延、信息处理时延和节点配置时间有关。在RSVP_TE信令基础上提出一种新的标签分组方式来减少LSP建立时延。从理论和仿真上都验证了采用这种标签分组方式会改善LSP建立时延性能。

This paper presented an introduction to the main content of extension and mechanism of signaling protocol for ASON-RSVP_TE, which is mainly used to dynamically establish/maintain/delete LSPs in ASON. The establishment time of a LSP is relevant to the node configuring, transmitting delay and managing delay of information. We give a method of label grouping to reduce the establishment time for LSP based on RSVP-TE signaling. The results of simulations and analyses prove that the method can reduce the establishment delay of LSP.