HP A5830 series Configuration Manual page 174

B can preempt as the master, ensuring that the hosts in the LAN can access the external network
through Switch B.
Figure 47 Network diagram for monitoring uplinks using BFD
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
Configuration procedure
Create VLANs, and assign corresponding ports to the VLANs. Configure the IP address of each
1.
VLAN interface as shown in
Configure BFD on Switch A.
2.
# Configure the source address of BFD echo packets as 10.10.10.10.
<SwitchA> system-view
[SwitchA] bfd echo-source-ip 10.10.10.10
Create a track entry to be associated with the BFD session on Switch A.
3.
# Create track entry 1 to be associated with the BFD session to check whether the uplink device with the
IP address 1.1.1.2 is reachable.
[SwitchA] track 1 bfd echo interface vlan-interface 3 remote ip 1.1.1.2 local ip 1.1.1.1
Configure VRRP on Switch A.
4.
# Create VRRP group 1, and configure the virtual IP address of the group as 192.168.0.10. Configure
the priority of Switch A in VRRP group 1 as 110. Configure VRRP group 1 to monitor the status of track
entry 1. When the status of the track entry becomes Negative, the priority of Switch A decreases by 20.
[SwitchA] interface vlan-interface 2
[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
Internet
Uplink
Virtual router
Virtual IP address:
192.168.0.10
L2 switch
Figure
Backup
uplink device
Uplink
Switch B
Backup
Vlan-int2
192.168.0.102/24
BFD probe packets
VRRP packets
47. (Details not shown)
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