Operation Manual – VRRP 
Quidway S3900 Series Ethernet Switches-Release 1510  Chapter 1  VRRP Configuration
 
Huawei Technologies Proprietary 
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# Configure that the virtual router can be pinged. 
[LSW-A] vrrp ping-enable 
# Create a backup group. 
[LSW-A] interface Vlan-interface 2 
[LSW-A-Vlan-interface2] vrrp vrid 1 virtual-ip 202.38.160.111 
# Set the priority for the backup group. 
[LSW-A-Vlan-interface2] vrrp vrid 1 priority 110 
# Set the authentication type for the backup group to md5, and the password to 
abc123. 
[LSW-A-Vlan-interface2] vrrp authentication-mode md5 abc123 
# Configure that the master switch to send VRRP packets once in every 5 seconds. 
[LSW-A-Vlan-interface2] vrrp vrid 1 timer advertise 5 
# Set the tracked VLAN interface. 
[LSW-A-Vlan-interface2] vrrp vrid 1 track Vlan-interface 3 reduced 30 
z  Configure switch B. 
# Configure VLAN 2. 
<LSW-B> system-view 
System View: return to User View with Ctrl+Z. 
[LSW-B] vlan 2 
[LSW-B-vlan2] port Ethernet 1/0/5 
[LSW-B-vlan2] quit 
[LSW-B] interface Vlan-interface 2 
[LSW-B-Vlan-interface2] ip address 202.38.160.2 255.255.255.0 
[LSW-B-Vlan-interface2] quit 
# Configure that the virtual router can be pinged. 
[LSW-B] vrrp ping-enable 
# Create a backup group. 
[LSW-B] interface Vlan-interface 2 
[LSW-B-Vlan-interface2] vrrp vrid 1 virtual-ip 202.38.160.111 
# Set the authentication key for the backup group. 
[LSW-B-Vlan-interface2] vrrp authentication-mode md5 abc123 
# Set the master to send VRRP packets once in every 5 seconds. 
[LSW-B-Vlan-interface2] vrrp vrid 1 timer advertise 5 
Normally, Switch A functions as the gateway, but when VLAN 3 interface on Switch A 
goes down, its priority will be reduced by 30, lower than that of Switch B so that Switch 
B will preempt the master for gateway services instead.