HP 4800G Series Configuration Manual page 1616

Figure 1-10 Network diagram for monitoring the uplink through VRRP
Master
uplink
device
Vlan-int3
1.1.1.2/24
Vlan-int3
1.1.1.1/24
Switch A
Master
Vlan-int2
192.168.0.101/24
Trunk
L2 switch
BFD probe packet
VRRP packet
Trunk
Configuration procedure
# Configure Switch A. The IP address of the uplink device is 1.1.1.2/24.
<SwitchA> system-view
[SwitchA] bfd session init-mode active
[SwitchA] bfd echo-source-ip 10.10.10.10
[SwitchA] interface vlan-interface 3
[SwitchA–vlan-interface3] ip address 1.1.1.1 24
[SwitchA–vlan-interface3] bfd min-echo-receive-interval 10
[SwitchA–vlan-interface3] bfd detect-multiplier 3
[SwitchA–vlan-interface3] quit
[SwitchA] track 1 bfd echo interface vlan-interface 3 remote ip 1.1.1.2 local ip 1.1.1.1
[SwitchA] interface vlan-interface 2
[SwitchA–vlan-interface3] ip address 192.168.0.101 24
[SwitchA–vlan-interface2] vrrp vrid 1 virtual-ip 192.168.0.10
[SwitchA–vlan-interface2] vrrp vrid 1 priority 110
[SwitchA–vlan-interface2] vrrp vrid 1 track 1 reduced 20
[SwitchA–vlan-interface2] return
# Configure Switch B.
<SwitchB> system-view
[SwitchB] interface vlan-interface 2
[SwitchB–vlan-interface2] ip address 192.168.0.102 24
Internet
L3
forwarding
Virtual Router
Heartbeat
Trunk
MSTP enabled
User data
Port blocked
1-31
Backup
uplink
device
Switch B
Backup
Vlan-int2
192.168.0.102/24
L2 switch