H3C Technologies H3C S12500-X Series Switches - Manual (Page 90)

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Figure 22 Network diagram
Configuration procedure
1. Create VLANs and assign corresponding ports to them. Configure the IP address of each VLAN
interface as shown in Figure 22 . (Details not shown.)
2. Configure VRRP on Switch A:
system-view
[SwitchA] interface vlan-interface 2
# Create VRRP group 1, and configure the virtual IP address 192.168.0.10 for the group. Set the
priority of Switch A in VRRP group 1 to 110.
[SwitchA-Vlan-interface2] vrrp vrid 1 virtual-ip 192.168.0.10
[SwitchA-Vlan-interface2] vrrp vrid 1 priority 110
[SwitchA-Vlan-interface2] return
3. On Switch B, configure the source address of BFD echo packets as 10.10.10.10.
system-view
[SwitchB] bfd echo-source-ip 10.10.10.10
4. On Switch B, create track entry 1 to be associated with the BFD session to check whether Switch
A is reachable.
[SwitchB] track 1 bfd echo interface vlan-interface 2 remote ip 192.168.0.101 local
ip 192.168.0.102
5. On Switch B, create VRRP group 1, and configure the virtual IP address 192.168.0.10 for the
group. VRRP group 1 monitors the status of track entry 1. When the status of the track entry
becomes Negative, Switch B quickly becomes the master.
[SwitchB] interface vlan-interface 2
[SwitchB-Vlan-interface2] vrrp vrid 1 virtual-ip 192.168.0.10
[SwitchB-Vlan-interface2] vrrp vrid 1 track 1 switchover
Internet
Virtual router
Virtual IP address:
192.168.0.10
Vlan-int2
192.168.0.101/24
Vlan-int2
192.168.0.102/24
Switch A
Master
Switch B
Backup
L2 switch
VRRP packets
BFD probe packets