华为交换机链路聚合Eth-trunk LACP配置实例

链路聚合基本概念：链路聚合是把两台设备之间的链路聚集在一块，当做一条逻辑链路使用。

链路聚合的作用：

1.增加链路带宽：多个链路聚合成一个带宽更大的链路，一般采用基于流的负载均衡模式；

2.增加链路可靠性：通过聚合组的多个链路，若一条物理链路出现问题，不会影响整个逻辑链路聚合组链路；

3.实现流量的负载均衡。把流量平均分到所有成员链路中去。使得每个成员链路最低限度的降低产生流量阻塞链路的风险

华为交换机配置Eth-Trunk端口（LACP模式）交换机配置示例：

[A2-42U-ACC]int Eth-Trunk 10

[A2-42U-ACC-Eth-Trunk10]mode lacp

[A2-42U-ACC-Eth-Trunk10]port link-type access

Info: This operation may take a few seconds. Please wait for a moment...done.

[A2-42U-ACC-Eth-Trunk10]port default vlan 88

[A2-42U-ACC]int g 0/0/23

[A2-42U-ACC-GigabitEthernet0/0/23]eth-trunk 10

Info: This operation may take a few seconds. Please wait a moment...done.

[A2-42U-ACC-GigabitEthernet0/0/23]dis th

#

interface GigabitEthernet0/0/23

eth-trunk 10

#

return

[A2-42U-ACC]int g 0/0/24

[A2-42U-ACC-GigabitEthernet0/0/24]eth-trunk 10                

Info: This operation may take a few seconds. Please wait a moment...done.

[A2-42U-ACC-GigabitEthernet0/0/24]dis th

#

interface GigabitEthernet0/0/24

eth-trunk 10

#

return

[A2-42U-ACC]dis int Eth-Trunk 10

Eth-Trunk10 current state : UP

Line protocol current state : UP

Description:

Switch Port, Link-type : access(configured),

PVID :   88, Hash arithmetic : According to SIP-XOR-DIP,Maximal BW: 2G, Current BW: 2G, The Maximum Frame Length is 9216

除此之外，在对端的设备上也要配置相同的聚合模式。