Configuring Bfd For The Vrrp Master To Monitor The Uplink - HPE FlexNetwork HSR6800 series Configuration Manual

The output shows that when BFD detects that Router A fails, it notifies VRRP through the Track
module to change the status of Router B to master without waiting for a period three times the
advertisement interval. This ensures that a backup can quickly preempt as the master.

Configuring BFD for the VRRP master to monitor the uplink

Network requirements
•
As shown in
address is 192.168.0.10.
•
The default gateway of the hosts in the LAN is 192.168.0.10.
•
When Router A works correctly, hosts in the LAN access the external network through Router A.
When Router A detects that the uplink is down through BFD, it decreases its priority so that
Router B can preempt as the master, ensuring that the hosts in the LAN can access the external
network through Router B.
Figure 58 Network diagram
Configuration procedure
1. Configure BFD on Router A:
# Configure the source address of BFD echo packets as 10.10.10.10.
<RouterA> system-view
[RouterA] bfd echo-source-ip 10.10.10.10
2. Create the track entry to associate with the BFD session on Router A:
# Create track entry 1 for the BFD session on Router A to check whether the uplink device with
the IP address 1.1.1.2 is reachable.
[RouterA] track 1 bfd echo interface gigabitethernet 1/0/1 remote ip 1.1.1.2 local
ip 1.1.1.1
3. Configure VRRP on Router A:
Figure 58, Router A and Router B belong to VRRP group 1, whose virtual IP
217