ASON中链路管理基于pSOS系统的实现

Realizaton of LMP in pSOS

自动交换光网络(ASON)在管理平面和传送平面之间引入控制平面,链路管理协议(LMP)是ASON控制平面的重要组成部分,主要研究相邻节点间的控制信道管理、链路状态同步、数据通道连接确认和故障管理。在对链路管理协议研究的基础上,基于实时操作系统pSOS,在OADM设备上实现了链路管理协议的主要功能。

Control plane, which is imported by ASON between management plane and transport plane, makes optical network intelligent. Link Management Protocol (LMP) is one of ASON protocol series.LMP runs be- tween neighboring nodes and is used to manage data links.LMP is also used to maintain control channel connectivity, verify the physical connectivity of the data links, correlate the link property information and localize link failures for protection/restoration purposes in multiple kinds of networks. This paper studies on the realization of four function modules of LMP, especially in embedded real time OS PSOS.