ASON的基本功能模块包括三个部分：路由、信令和链路管理。
According to its functions, ASON is departed into three basic modules: routing, signaling and link management.
从功能上分，通用多协议标签交换协议控制平面分为信令、路由和链路管理。
From the functional point of view, a GPMLS control plane can be partitioned into the following components: link management, routing, and signaling.
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