H3C Technologies H3C SR8800 - Manual (Page 67)

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[RouterD-rip-1] quit
3. Verify the configuration:
# Display route 4.4.4.4/32 on Router S and you can view the backup next hop information.
[RouterS] display ip routing-table 4.4.4.4 verbose
Routing Table : Public
Summary Count : 1
Destination: 4.4.4.4/32
Protocol: RIP Process ID: 1
Preference: 100 Cost: 1
NextHop: 13.13.13.2 Interface: GigabitEthernet3/1/2
BkNextHop: 12.12.12.2 BkInterface: GigabitEthernet3/1/1
RelyNextHop: 0.0.0.0 Neighbor : 0.0.0.0
Tunnel ID: 0x0 Label: NULL
State: Active Adv Age: 00h01m27s
Tag: 0
# Display route 1.1.1.1/32 on Router D. You can find the backup next hop information.
[RouterS] display ip routing-table 1.1.1.1 verbose
Routing Table : Public
Summary Count : 1
Destination: 1.1.1.1/32
Protocol: RIP Process ID: 1
Preference: 100 Cost: 1
NextHop: 13.13.13.1 Interface: GigabitEthernet3/1/2
BkNextHop: 24.24.24.2 BkInterface: GigabitEthernet3/1/1
RelyNextHop: 0.0.0.0 Neighbor : 0.0.0.0
Tunnel ID: 0x0 Label: NULL
State: Active Adv Age: 00h01m27s
Tag: 0
Configuring BFD for RIP (single-hop detection in BFD echo
packet mode)
Network requirements
As shown in the following figure:
• Router A and Router C are interconnected through Router D. GigabitEthernet 4/1/1 of the two
routers runs RIP process 1, BFD is enabled on GigabitEthernet 4/1/1 of Router A.
• Router A is connected to Router C through Router B. GigabitEthernet 4/1/2 on Router A runs RIP
process 2; GigabitEthernet 4/1/2 on Router C, and GigabitEthernet 4/1/1 and GigabitEthernet
4/1/2 on Router B run RIP process 1.
• Configure a static route and enable static route redistribution into RIP on Router C. Router A learns
the static route sent by Router C, and the outbound interface of the route is the interface connected
to Router D.
• When the link between Router C and Router D fails, BFD can quickly detect the link failure and
notify it to RIP, and the BFD session goes down. In response, RIP deletes the neighbor relationship