以太信道是一种端口链路聚合技术。

Etherchannel is a port link aggregation technology.

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链路聚合提供了跨多个交换机路由通信流的机制，有助于防止交换机造成的网络故障。

Link aggregation provides a mechanism for routing traffic across multiple switches in the case of a network failure of a switch.

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可以使用链路聚合设备把两个物理适配器连接在一起，让它们看起来像一个适配器一样。

A link aggregation device can be used to connect two physical adapters together to look like one adapter.

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