Example: Configuring multiple VRRP groups

As shown in Figure 52, Switch A and Switch B form two VRRP groups. VRRP group 1 uses the virtual IP address 10.1.1.100/25 to provide gateway service for hosts in VLAN 2, and VRRP group 2 uses the virtual IP address 10.1.1.200/25 to provide gateway service for hosts in VLAN 3.

Assign a higher priority to Switch A than Switch B in VRRP group 1, but a lower priority in VRRP group 2. Traffic from VLAN 2 and VLAN 3 can then be distributed between the two switches. When one of the switches fails, the healthy switch provides gateway service for both VLANs.

	IMPORTANT: By default, interfaces on the device are disabled (in ADM or Administratively Down state). To have an interface operate, you must use the undo shutdown command to enable that interface.

1. Configure Switch A:

   # Configure VLAN 2.

   <SwitchA> system-view
   [SwitchA] vlan 2
   [SwitchA-vlan2] port fortygige 1/0/5
   [SwitchA-vlan2] quit
   [SwitchA] interface vlan-interface 2
   [SwitchA-Vlan-interface2] ip address 10.1.1.1 255.255.255.128
   

   # Create VRRP group 1, and set its virtual IP address to 10.1.1.100.

   [SwitchA-Vlan-interface2] vrrp vrid 1 virtual-ip 10.1.1.100
   

   # Assign Switch A a higher priority than Switch B in VRRP group 1, so Switch A can become the master in the group.

   [SwitchA-Vlan-interface2] vrrp vrid 1 priority 110
   [SwitchA-Vlan-interface2] quit
   

   # Configure VLAN 3.

   [SwitchA] vlan 3
   [SwitchA-vlan3] port fortygige 1/0/6
   [SwitchA-vlan3] quit
   [SwitchA] interface vlan-interface 3
   [SwitchA-Vlan-interface3] ip address 10.1.1.130 255.255.255.128
   

   # Create VRRP group 2, and set its virtual IP address to 10.1.1.200.

   [SwitchA-Vlan-interface3] vrrp vrid 2 virtual-ip 10.1.1.200
   

2. Configure Switch B:

   # Configure VLAN 2.

   <SwitchB> system-view
   [SwitchB] vlan 2
   [SwitchB-vlan2] port fortygige 1/0/5
   [SwitchB-vlan2] quit
   [SwitchB] interface vlan-interface 2
   [SwitchB-Vlan-interface2] ip address 10.1.1.2 255.255.255.128
   

   # Create VRRP group 1, and set its virtual IP address to 10.1.1.100.

   [SwitchB-Vlan-interface2] vrrp vrid 1 virtual-ip 10.1.1.100
   [SwitchB-Vlan-interface2] quit
   

   # Configure VLAN 3.

   [SwitchB] vlan 3
   [SwitchB-vlan3] port fortygige 1/0/6
   [SwitchB-vlan3] quit
   [SwitchB] interface vlan-interface 3
   [SwitchB-Vlan-interface3] ip address 10.1.1.131 255.255.255.128
   

   # Create VRRP group 2, and set its virtual IP address to 10.1.1.200.

   [SwitchB-Vlan-interface3] vrrp vrid 2 virtual-ip 10.1.1.200
   

   # Assign Switch B a higher priority than Switch A in VRRP group 2, so Switch B can become the master in the group.

   [SwitchB-Vlan-interface3] vrrp vrid 2 priority 110
   

# Display detailed information about the VRRP groups on Switch A.

[SwitchA-Vlan-interface3] display vrrp verbose
IPv4 Virtual Router Information:
 Running Mode      : Standard
 Total number of virtual routers : 2
   Interface Vlan-interface2
     VRID             : 1                    Adver Timer  : 100
     Admin Status     : Up                   State        : Master
     Config Pri       : 110                  Running Pri  : 110
     Preempt Mode     : Yes                  Delay Time   : 0
     Auth Type        : None
     Virtual IP       : 10.1.1.100
     Virtual MAC      : 0000-5e00-0101
     Master IP        : 10.1.1.1

   Interface Vlan-interface3
     VRID             : 2                    Adver Timer  : 100
     Admin Status     : Up                   State        : Backup
     Config Pri       : 100                  Running Pri  : 100
     Preempt Mode     : Yes                  Delay Time   : 0
     Become Master    : 203ms left
     Auth Type        : None
     Virtual IP       : 10.1.1.200
     Master IP        : 10.1.1.131

# Display detailed information about the VRRP groups on Switch B.

[SwitchB-Vlan-interface3] display vrrp verbose
IPv4 Virtual Router Information:
 Running Mode      : Standard
 Total number of virtual routers : 2
   Interface Vlan-interface2
     VRID             : 1                    Adver Timer  : 100
     Admin Status     : Up                   State        : Backup
     Config Pri       : 100                  Running Pri  : 100
     Preempt Mode     : Yes                  Delay Time   : 0
     Become Master    : 211ms left
     Auth Type        : None
     Virtual IP       : 10.1.1.100
     Master IP        : 10.1.1.1

   Interface Vlan-interface3
     VRID             : 2                    Adver Timer  : 100
     Admin Status     : Up                   State        : Master
     Config Pri       : 110                  Running Pri  : 110
     Preempt Mode     : Yes                  Delay Time   : 0
     Auth Type        : None
     Virtual IP       : 10.1.1.200
     Virtual MAC      : 0000-5e00-0102
     Master IP        : 10.1.1.131

The output shows the following information:

• Switch A is operating as the master in VRRP group 1 to forward Internet traffic for hosts that use the default gateway 10.1.1.100/25.

• Switch B is operating as the master in VRRP group 2 to forward Internet traffic for hosts that use the default gateway 10.1.1.200/25.