H3C Technologies H3C S7500E Series Switches - Manual (Page 153)

10-20
z Switch A and Switch B belong to VRRP group 1 with the virtual IP address of
202.38.160.111/24.
z When Switch A operates normally, packets sent from Host A to Host B are forwarded by
Switch A; when Switch A fails, packets sent from Host A to Host B are forwarded by Switch
B.
Figure 10-7 Network diagram for single VRRP group configuration
Configuration procedure
1) Configure Switch A
# Configure VLAN 2.
<SwitchA> system-view
[SwitchA] vlan 2
[SwitchA-vlan2] port gigabitethernet 2/0/5
[SwitchA-vlan2] quit
[SwitchA] interface vlan-interface 2
[SwitchA-Vlan-interface2] ip address 202.38.160.1 255.255.255.0
# Create VRRP group 1 and set its virtual IP address to 202.38.160.111.
[SwitchA-Vlan-interface2] vrrp vrid 1 virtual-ip 202.38.160.111
# Set the priority of Switch A in VRRP group 1 to 110, which is higher than that of Switch B (100),
so that Switch A can become the master.
[SwitchA-Vlan-interface2] vrrp vrid 1 priority 110
# Configure Switch A to work in preemptive mode so that it can become the master whenever it
works normally, and configure the preemption delay as five seconds to avoid frequent status
switchover.
[SwitchA-Vlan-interface2] vrrp vrid 1 preempt-mode timer delay 5
2) Configure Switch B
# Configure VLAN 2.
<SwitchB> system-view
[SwitchB] vlan 2
[SwitchB-Vlan2] port gigabitethernet 2/0/5
[SwitchB-vlan2] quit
[SwitchB] interface vlan-interface 2
[SwitchB-Vlan-interface2] ip address 202.38.160.2 255.255.255.0