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Verifying the configuration
# Display the BFD session information on Switch A.
<SwitchA> display bfd session
Total Session Num: 1 Up Session Num: 1 Init Mode: Active
IPv4 session working under Ctrl mode:
LD/RD SourceAddr DestAddr State Holdtime Interface
513/513 192.168.1.1 192.168.2.2 Up 1700ms vlan100
# Display RIP routes destined for 100.1.1.0/24 on Switch A.
<SwitchA> display ip routing-table 100.1.1.0 24
Summary count : 1
Destination/Mask Proto Pre Cost NextHop Interface
100.1.1.0/24 RIP 100 1 192.168.2.2 vlan-interface 100
The output shows that Switch A communicates with Switch C through VLAN-interface 100. Then the
link over VLAN-interface 100 fails.
# Display RIP routes destined for 100.1.1.0/24 on Switch A.
<SwitchA> display ip routing-table 100.1.1.0 24
Summary count : 1
Destination/Mask Proto Pre Cost NextHop Interface
100.1.1.0/24 RIP 100 2 192.168.3.2 vlan-interface 300
The output shows that Switch A communicates with Switch C through VLAN-interface 300.
Configuring RIP FRR
Network requirements
As shown in Figure 16, Switch A, Switch B, and Switch C run RIPv2. Configure RIP FRR so that
when Link A becomes unidirectional, services can be switched to Link B immediately.
Figure 16 Network diagram
Table 8 Interface and IP address assignment
Switch A VLAN-interface 100 12.12.12.1/24
Switch A Switch B
Switch C
Loop0
Vlan-int100
Vlan-int200
Vlan-int200
Vlan-int100
Vlan-int101
Vlan-int101
Loop0
Link A
Link B
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