H3CNE 15 三层动态链路聚合

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15 三层动态链路聚合

基本配置

<H3C>system-view

[H3C]sysname sw1

[sw1]vlan 10

[sw1-vlan10]name pc

[sw1-vlan10]description pcvlan

[sw1-vlan10]quit

[sw1]interface vlan-interface 10

[sw1-Vlan-interface10]ip address 192.168.10.1 24

[sw1-Vlan-interface10]quit

[sw1]interface gigabitethernet 1/0/48

[sw1-GigabitEthernet1/0/48]port link-type access

[sw1-GigabitEthernet1/0/48]port access vlan 10

[sw1-GigabitEthernet1/0/48]quit

配置交换机链路聚合控制协议的优先级

（值越小优先级越高使SW1成为主动端）

[sw1]lacp system-priority 100  //配置LACP系统优先级100

[sw1]link-aggregation global load-sharing mode source-ipdestination-ip source-mac destination-mac //配置链路聚合全局负载分担模式

创建三层路由链路聚合组

[sw1]interface route-aggregation 1  //创建三层链路聚合组

[sw1-Route-Aggregation1]link-aggregation mode dynamic  //配置链路聚合模式为动态

[sw1-Route-Aggregation1]ip address 172.16.100.1 24  //为聚合接口配置IP地址

[sw1-Route-Aggregation1]link-aggregation selected-portmaximum 2  //配置链路聚合最大选择两个端口（未选中的会成为备份链路）

[sw1-Route-Aggregation1]quit

将二层端口转换成三层接口并划入链路聚合组

[sw1]interface range gigabitethernet 1/0/1 togigabitethernet 1/0/3  //进入端口范围

[sw1-if-range]port link-mode route  //端口类型改为路由接口

[sw1-if-range]port link-aggregation group 1  //将端口划入链路聚合组

[sw1-if-range]quit

[sw1]interface range GigabitEthernet 1/0/1 toGigabitEthernet 1/0/2

[sw1-if-range]link-aggregation port-priority 100  //配置链路聚合接口的优先级（高优先级会被选中为主动接口）

[sw1-if-range]quit

配置静态路由

[sw1]ip route-static 192.168.20.0 255.255.255.0172.16.100.2

<H3C>system-view

[H3C]sysname sw2

[sw2]interface gigabitethernet 1/0/48

[sw2-GigabitEthernet1/0/48]port link-mode route

[sw2-GigabitEthernet1/0/48]ip address 192.168.20.1 24

[sw2-GigabitEthernet1/0/48]quit

[sw2]link-aggregation global load-sharing modedestination-mac source-mac destination-ip source-ip

[sw2-Route-Aggregation1]link-aggregation mode dynamic

[sw2]interface route-aggregation 1

[sw2-Route-Aggregation1]ip address 172.16.100.2 24

[sw2-Route-Aggregation1]link-aggregation selected-portmaximum 2

[sw2-Route-Aggregation1]quit

[sw2]interface range GigabitEthernet 1/0/1 toGigabitEthernet 1/0/3

[sw2-if-range]port link-mode route

[sw2-if-range]port link-aggregation group 1

[sw2-if-range]quit

[sw2]display link-aggregation summary

                              

[sw2]display link-aggregation verbose

[sw2]ip route-static 192.168.10.0 255.255.255.0172.16.100.1

此时将SW1的G 1/0/2接口掉电

[sw1-GigabitEthernet1/0/2]shutdown

[sw1]display link-aggregation verbose

此时G 1/0/3备份链路成为选中链路继续代替G 1/0/2接口工作。