Signaling, the executive of automatic connection set-up, release, modification and maintenance, plays an important part in ASON.
信令是光通道自动创建、拆除和修改等操作的具体执行者，在自动交换光网络中起着至关重要的作用。
Signaling, the executive of automatic connection set-up, release, modification and maintenance, plays an important part in ASON.
信令是光通道自动创建、拆除和修改等操作的具体执行者，在自动交换光网络中起着至关重要的作用。
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