什么是Eth-trunk？

Eth-Trunk的建立方式

How Eth-Trunk was created

Eth-Trunk接口的创建、成员接口的加入由手工配置，没有链路聚合控制协议的参与。

The creation of the Eth-Trunk interface, the addition of the membership interface are manually configured and there is no involvement in the connection polymer control protocol.

Eth-Trunk接口的创建、成员接口的加入由手工配置，LACP协议参与链路动态调整，负责链路状态维护。在聚合条件发生变化时，自动调整或解散链路聚合。

The Eth-Trunk interface is created, the membership interfaces are manually configured, and the LACP protocol is involved in the dynamic alignment of the links and is responsible for the maintenance of the links.

设备是否需要支持LACP协议

Need for equipment to support the LACP agreement

不需要

I don't need it.

需要

Yes.

数据转发

Data forwarding

正常情况下，所有链路都是活动链路。所有活动链路均参与数据转发。如果某条活动链路故障，链路聚合组自动在剩余的活动链路中分担流量。

Normally, all links are active links. All active links are involved in data forwarding.

正常情况下，部分链路是活动链路。所有活动链路均参与数据转发。如果某条活动链路故障，链路聚合组自动在非活动链路中选择一条链路作为活动链路，参与数据转发的链路数目不变。

Normally, part of the link is an active link. All active links are involved in data forwarding. If an active link fails, the cell automatically selects a non-active link as an active link, and the number of links involved in data forwarding remains the same.

检测故障

Checking faults.

只能检测到同一聚合组内的成员链路有断路等故障，无法检测到链路断连、错连等故障。

Only faults, such as broken circuits, can be detected in the member's links within the same polymer group, and faults, such as broken links, fault lines, etc., cannot be detected.

不仅能够检测到同一聚合组内的成员链路有断路等故障，还可以检测到链路故障、链路错连等故障。

Not only are faults detected in the member's links within the same polymer group, such as broken circuits, but faults in the link, fault links, etc., can also be detected.