H3C Technologies H3C MSR 50 - Manual (Page 90)

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Configuration procedure
1. Configure Router A:
<RouterA> system-view
[RouterA] interface ethernet 1/2
[RouterA-Ethernet1/2] ip address 202.38.160.1 255.255.255.0
# Create VRRP group 1 and configure its virtual IP address as 202.38.160.111.
[RouterA-Ethernet1/2] vrrp vrid 1 virtual-ip 202.38.160.111
# Configure the priority of Router A in the VRRP group as 110, which is higher than that of Router
B (100), so that Router A can become the master.
[RouterA-Ethernet1/2] vrrp vrid 1 priority 110
# Configure the authentication mode of the VRRP group as simple and authentication key as hello.
[RouterA-Ethernet1/2] vrrp vrid 1 authentication-mode simple hello
# Configure the master to send VRRP packets every 4 seconds.
[RouterA-Ethernet1/2] vrrp vrid 1 timer advertise 4
# Configure Router A to operate in preemptive mode, so that it can become the master whenever
it works correctly. Configure the preemption delay as 5 seconds to avoid frequent status
switchover.
[RouterA-Ethernet1/2] vrrp vrid 1 preempt-mode timer delay 5
# Set interface Ethernet 1/1 on Router A to be tracked. Configure the amount by which the priority
value decreases to be more than 10 (30 in this example). Then when Ethernet 1/1 fails, the priority
of Router A in VRRP group 1 decreases to a value lower than 100 and Router B can become the
master.
[RouterA-Ethernet1/2] vrrp vrid 1 track interface ethernet 1/1 reduced 30
2. Configure Router B:
<RouterB> system-view
[RouterB] interface ethernet 1/2
[RouterB-Ethernet1/2] ip address 202.38.160.2 255.255.255.0
# Create VRRP group 1 and configure its virtual IP address as 202.38.160.111.
[RouterB-Ethernet1/2] vrrp vrid 1 virtual-ip 202.38.160.111
# Configure the authentication mode of the VRRP group as simple and authentication key as hello.
[RouterB-Ethernet1/2] vrrp vrid 1 authentication-mode simple hello
# Configure the master to send VRRP packets every 4 seconds.
[RouterB-Ethernet1/2] vrrp vrid 1 timer advertise 4
# Configure Router B to operate in preemptive mode, so that Router B can become the master after
the priority of Router A decreases to a value lower than 100. Configure the preemption delay as
5 seconds to avoid frequent status switchover.
[RouterB-Ethernet1/2] vrrp vrid 1 preempt-mode timer delay 5
3. Verify the configuration:
After the configuration, Host B can be pinged successfully on Host A. To verify your configuration,
use the display vrrp verbose command.
# Display the detailed information about VRRP group 1 on Router A.
[RouterA-Ethernet1/2] display vrrp verbose
IPv4 Standby Information:
Run Mode : Standard
Run Method : Virtual MAC