VRRP with multiple VLANs configuration example
Network requirements
Hosts in VLAN 2 use 202.38.160.100/25 as their default gateway and hosts in VLAN 3 use 202.38.160.200/25 as their default gateway.
Switch A and Switch B belong to both VRRP group 1 and VRRP group 2. The virtual IP address of VRRP group 1 is 202.38.160.100/25, and that of VRRP group 2 is 202.38.160.200/25.
In VRRP group 1, Switch A has a higher priority than Switch B. In VRRP group 2, Switch B has a higher priority than Switch A. In this case, hosts in VLAN 2 and VLAN 3 can communicate with external networks through Switch A and Switch B, respectively, and when Switch A or Switch B fails, the hosts can use the other switch to communicate with external networks to avoid communication interruption.
Figure 41: Network diagram
Configuration procedure
Configure Switch A:
# Configure VLAN 2.
<SwitchA> system-view [SwitchA] vlan 2 [SwitchA-vlan2] port gigabitethernet 1/0/5 [SwitchA-vlan2] quit [SwitchA] interface vlan-interface 2 [SwitchA-Vlan-interface2] ip address 202.38.160.1 255.255.255.128
# Create a VRRP group 1 and set its virtual IP address to 202.38.160.100.
[SwitchA-Vlan-interface2] vrrp vrid 1 virtual-ip 202.38.160.100
# Configure the priority of Switch A in VRRP group 1 as 110, which is higher than that of Switch B (100), so that Switch A can become the master in VRRP group 1.
[SwitchA-Vlan-interface2] vrrp vrid 1 priority 110 [SwitchA-Vlan-interface2] quit
# Configure VLAN 3.
[SwitchA] vlan 3 [SwitchA-vlan3] port gigabitethernet 1/0/6 [SwitchA-vlan3] quit [SwitchA] interface vlan-interface 3 [SwitchA-Vlan-interface3] ip address 202.38.160.130 255.255.255.128
# Create a VRRP group 2 and set its virtual IP address to 202.38.160.200.
[SwitchA-Vlan-interface3] vrrp vrid 2 virtual-ip 202.38.160.200
Configure Switch B:
# Configure VLAN 2.
<SwitchB> system-view [SwitchB] vlan 2 [SwitchB-vlan2] port gigabitethernet 1/0/5 [SwitchB-vlan2] quit [SwitchB] interface vlan-interface 2 [SwitchB-Vlan-interface2] ip address 202.38.160.2 255.255.255.128
# Create a VRRP group 1 and set its virtual IP address to 202.38.160.100.
[SwitchB-Vlan-interface2] vrrp vrid 1 virtual-ip 202.38.160.100 [SwitchB-Vlan-interface2] quit
# Configure VLAN 3.
[SwitchB] vlan 3 [SwitchB-vlan3] port gigabitethernet 1/0/6 [SwitchB-vlan3] quit [SwitchB] interface vlan-interface 3 [SwitchB-Vlan-interface3] ip address 202.38.160.131 255.255.255.128
# Create a VRRP group 2 and set its virtual IP address to 202.38.160.200.
[SwitchB-Vlan-interface3] vrrp vrid 2 virtual-ip 202.38.160.200
# Configure the priority of Switch B in VRRP group 2 to 110, which is higher than that of Switch A (100), so that Switch B can become the master in VRRP group 2.
[SwitchB-Vlan-interface3] vrrp vrid 2 priority 110
Verify the configuration:
To verify your configuration, use the display vrrp verbose command.
# Display the detailed information about the VRRP group on Switch A.
[SwitchA-Vlan-interface3] display vrrp verbose IPv4 Standby Information: Run Mode : Standard Run Method : Virtual MAC Total number of virtual routers : 2 Interface Vlan-interface2 VRID : 1 Adver Timer : 1 Admin Status : Up State : Master Config Pri : 110 Running Pri : 110 Preempt Mode : Yes Delay Time : 0 Auth Type : None Virtual IP : 202.38.160.100 Virtual MAC : 0000-5e00-0101 Master IP : 202.38.160.1 Interface Vlan-interface3 VRID : 2 Adver Timer : 1 Admin Status : Up State : Backup Config Pri : 100 Running Pri : 100 Preempt Mode : Yes Delay Time : 0 Become Master : 2200ms left Auth Type : None Virtual IP : 202.38.160.200 Master IP : 202.38.160.131# Display the detailed information about the VRRP group on Switch B.
[SwitchB-Vlan-interface3] display vrrp verbose IPv4 Standby Information: Run Mode : Standard Run Method : Virtual MAC Total number of virtual routers : 2 Interface Vlan-interface2 VRID : 1 Adver Timer : 1 Admin Status : Up State : Backup Config Pri : 100 Running Pri : 100 Preempt Mode : Yes Delay Time : 0 Become Master : 2200ms left Auth Type : None Virtual IP : 202.38.160.100 Master IP : 202.38.160.1 Interface Vlan-interface3 VRID : 2 Adver Timer : 1 Admin Status : Up State : Master Config Pri : 110 Running Pri : 110 Preempt Mode : Yes Delay Time : 0 Auth Type : None Virtual IP : 202.38.160.200 Virtual MAC : 0000-5e00-0102 Master IP : 202.38.160.131The output shows that in VRRP group 1 Switch A is the master, Switch B is the backup and hosts with the default gateway of 202.38.160.100/25 accesses the Internet through Switch A; in VRRP group 2 Switch A is the backup, Switch B is the master and hosts with the default gateway of 202.38.160.200/25 accesses the Internet through Switch B.