- Network requirements
• • VLAN 2 in the host's default gateway as the default gateway for the hosts in 10.1.1.100/25;VLAN 3 10.1.1.200/25;
• • Switch A and Switch B belong to the virtual IP address is 10.1. backup group 1.100 / 1 and 25 virtual IP address
10.1.1.200/25 backup group 2;
• • Switch B is higher than the priority of the VRRP group 1 Switch a high priority VRRP group 2, Switch B to Switch
a, and to ensure the hosts 3 VLAN 2 VLAN communication through Switch a and Switch B, when Switch a
or when Switch B fails, the host can continue to communicate to another device, to avoid communication interruption.
- 配置步骤
(1) 配置 Switch A
<H3C> system-view
[H3C]hostname SwitchA
[SwitchA]inter range g 1/0/21 to g 1/0/24
[SwitchA-if-range]port link-type trunk
[SwitchA-if-range]port trunk per vlan all
[SwitchA-if-range]quit
Configure VLAN 2.
[SwitchA] vlan 2
[SwitchA-vlan2] quit
[SwitchA] interface vlan-interface 2
[SwitchA-Vlan-interface2] ip address 10.1.1.1 255.255.255.128
Create backup group 1 and configure virtual IP address of the backup group 1 is 10.1.1.100.
[SwitchA-Vlan-interface2] vrrp vrid 1 virtual-ip 10.1.1.100
Switch A is provided in the backup group 1 priority 110, Switch B is higher than the priority of 100, to ensure that the backup group 1
Switch A has become the Master is responsible for forwarding traffic.
[SwitchA-of Vlan-interface2] vrid VRRP priority. 1 110
[SwitchA-of Vlan-interface2] quit
Configure VLAN 3.
[SwitchA] vlan 3
[SwitchA-vlan3] quit
[SwitchA] interface vlan-interface 3
[SwitchA-Vlan-interface3] ip address 10.1.1.130 255.255.255.128
Create backup group 2, and configure the backup set of virtual IP address as 10.1.1.200.
[SwitchA-Vlan-interface3] vrrp vrid 2 virtual-ip 10.1.1.200
[SwitchA-Vlan-interface3]quit
[SwitchA]inter g 1/0/1
[SwitchA-GigabitEthernet1/0/1]port link-m r
[SwitchA-GigabitEthernet1/0/1]ip add 10.1.3.1 24
[SwitchA-GigabitEthernet1/0/1]undo shut
[SwitchA-GigabitEthernet1/0/1]quit
[SwitchA]ip route-static 0.0.0.0 0 10.1.3.2
(2) 配置 Switch B
<H3C> system-view
[H3C]hostname SwitchB
[SwitchB]inter range g 1/0/21 to g 1/0/24
[SwitchB-if-range]port link-type trunk
[SwitchB-if-range]port trunk per vlan all
[SwitchB-if-range]quit
Configure VLAN 2.
[SwitchB] vlan 2
[SwitchB-vlan2] quit
[SwitchB] interface vlan-interface 2
[SwitchB-Vlan-interface2] ip address 10.1.1.2 255.255.255.128
Create backup group 1 and configure virtual IP address of the backup group 1 is 10.1.1.100.
[SwitchB-Vlan-interface2] vrrp vrid 1 virtual-ip 10.1.1.100
[SwitchB-Vlan-interface2] quit
配置 VLAN 3。
[SwitchB] vlan 3
[SwitchB-vlan3] quit
[SwitchB] interface vlan-interface 3
[SwitchB-Vlan-interface3] ip address 10.1.1.131 255.255.255.128
创建备份组 2，并配置备份组 2 的虚拟 IP 地址为 10.1.1.200。
[SwitchB-Vlan-interface3] vrrp vrid 2 virtual-ip 10.1.1.200
设置 Switch B 在备份组 2 中的优先级为 110，高于 Switch A 的优先级 100，以保证在备份组 2
中 Switch B 成为 Master 负责转发流量。
[SwitchB-Vlan-interface3] vrrp vrid 2 priority 110
[SwitchA-Vlan-interface3]quit
[SwitchA]inter g 1/0/2
[SwitchA-GigabitEthernet1/0/2]port link-m r
[SwitchA-GigabitEthernet1/0/2]ip add 10.1.4.1 24
[SwitchA-GigabitEthernet1/0/2]undo shut
[SwitchA-GigabitEthernet1/0/2]quit
[SwitchA]ip route-static 0.0.0.0 0 10.1.4.2
（3）配置SwitchC
<H3C> system-view
[H3C]hostname SwitchC
[H3C]vlan 2
[H3C-vlan2]port g 1/0/1 to g 1/0/10
[H3C-vlan2]quit
[H3C]vlan 3
[H3C-vlan3]port g 1/0/11 to g 1/0/20
[H3C-vlan3]quit
[SwitchC]inter range g 1/0/21 to g 1/0/24
[SwitchC-if-range]port link-type trunk
[SwitchC-if-range]port trunk per vlan all
[SwitchC-if-range]quit
（4）配置SwitchD
<H3C> system-view
[H3C]hostname SwitchD
[SwitchD]inter g 1/0/1
[SwitchD-GigabitEthernet1/0/1]port link-m r
[SwitchD-GigabitEthernet1/0/1]ip add 10.1.3.2 24
[SwitchD-GigabitEthernet1/0/1]undo shut
[SwitchD-GigabitEthernet1/0/1]quit
[SwitchD]inter g 1/0/2
[SwitchD-GigabitEthernet1/0/2]port link-m r
[SwitchD-GigabitEthernet1/0/2]ip add 10.1.4.2 24
[SwitchD-GigabitEthernet1/0/2]undo shut
[SwitchD-GigabitEthernet1/0/2]quit
[SwitchD]inter g 1/0/11
[SwitchD-GigabitEthernet1/0/11]port link-m r
[SwitchD-GigabitEthernet1/0/11]ip add 10.1.2.1 24
[SwitchD-GigabitEthernet1/0/11]undo shut
[SwitchD-GigabitEthernet1/0/11]quit
[SwitchD]ip route-s 10.1.1.0 24 10.1.3.1
[SwitchD]ip route-s 10.1.1.0 24 10.1.4.1
