H3C Technologies H3C SR8800 - Manual (Page 135)

126
Figure 35 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 3/1/1 remote ip 1.1.1.2 local
ip 1.1.1.1
3. Configure VRRP on Router A:
# Create VRRP group 1, and configure the virtual IP address of the group as 192.168.0.10;
configure the priority of Router 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 Router
A decreases by 20.
[RouterA] interface GigabitEthernet 3/1/2
[RouterA-GigabitEthernet3/1/2] vrrp vrid 1 virtual-ip 192.168.0.10
[RouterA-GigabitEthernet3/1/2] vrrp vrid 1 priority 110
[RouterA-GigabitEthernet3/1/2] vrrp vrid 1 track 1 reduced 20
[RouterA-GigabitEthernet3/1/2] return
4. Configure VRRP on Router B:
# Create VRRP group 1, and configure the virtual IP address of the group as 192.168.0.10.
[RouterB] interface GigabitEthernet 3/1/2
Internet
Master
Uplink device
Backup
Uplink device
Uplink
Virtual router
Virtual IP address:
192.168.0.10
GE3/1/2
192.168.0.101/24
GE3/1/2
192.168.0.102/24
Router A
Master
Router B
Backup
GE3/1/1
1.1.1.1/24
GE3/1/1
1.1.1.2/24
L2 switch
Uplink
VRRP packets
BFD probe packets