通过为顾客提供标准化的信封和信盒以及要求标签上标有一致的信息,这些公司建立起一套可靠的跟踪系统。
By providing standard envelopes and boxes to customers and requiring consistent information on the shipping label, these companies were able to build sophisticated tracking systems.
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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