H3C 5120配置链路聚合（动态LACP）

网络拓扑图如下：

 

组网需求【华三默认链路聚合模式是静态模式】：

• Device A与Device B通过各自的以太网端口GigabitEthernet1/0/1～GigabitEthernet1/0/3相互连接
• 在Device A和Device B上分别配置链路聚合组，并使两端的VLAN 10和VLAN 20之间分别互通

(1)        配置Device A

<DeviceA> system-view
[DeviceA] vlan 10
[DeviceA-vlan10] port gigabitEthernet 1/0/4
[DeviceA-vlan10] quit

[DeviceA] vlan 20
[DeviceA-vlan20] port gigabitEthernet 1/0/5
[DeviceA-vlan20] quit

[DeviceA] interface bridge-aggregation 1        #创建二层聚合组1
[DeviceA-Bridge-Aggregation1] quit

[DeviceA] interface gigabitethernet 1/0/1
[DeviceA-gigabitethernet1/0/1] port link-aggregation group 1    #将端口加入聚合组1
[DeviceA-gigabitethernet1/0/1] quit

[DeviceA] interface gigabitethernet 1/0/2
[DeviceA-gigabitethernet1/0/2] port link-aggregation group 1    #将端口加入聚合组1
[DeviceA-gigabitethernet1/0/2] quit

[DeviceA] interface gigabitethernet 1/0/3
[DeviceA-gigabitethernet1/0/3] port link-aggregation group 1    #将端口加入聚合组1
[DeviceA-gigabitethernet1/0/3] quit

[DeviceA] interface bridge-aggregation 1    #进入聚合组1
[DeviceA-Bridge-Aggregation1] port link-type trunk        #配置聚合组端口类型为trunk
[DeviceA-Bridge-Aggregation1] port trunk permit vlan 10 20    #允许vlan 10 20通过
[DeviceA-Bridge-Aggregation1] link-aggregation mode dynamic　　#配置链路聚合模式为动态LACP模式

 link-aggregation load-sharing mode destination-mac 　　#聚合端口组链路基于目的mac实现链路负载分担，有些设备可能不支持，不配置也能用，两端都配置

 

(2)        配置Device B

Device B的配置与Device A相似，配置过程略

 

(3)        检验配置效果

# 查看Device A上所有聚合组的摘要信息，工作模式是Dynamic动态，有3条线路被选中，1条未选中

[DeviceA] display link-aggregation summary

 

#查看聚合口状态，哪些端口加入聚合组

[DeviceA] dis link-aggregation verbose 

 

(4)        修改端口优先级，使流量优先走指定的端口，选中的端口后有 (R)

<Sysname> system-view

[Sysname] interface gigabitethernet 1/0/48

[Sysname-GigabitEthernet1/0/1] link-aggregation port-priority 1000    #端口优先级，默认值32678，取值范围为0～65535，该数值越小，优先级越高，两端相连的接口都需配置