R3102-R3103-HP 6600/HSR6600 Routers Layer 3 - IP Routing Configuration Guide

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3. Verify the configuration:
# Display route 4.4.4.4/32 on Router S, then 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
IpPrecedence: QosLcId:
NextHop: 13.13.13.2 Interface: GigabitEthernet2/1/2
BkNextHop: 12.12.12.2 BkInterface: GigabitEthernet2/1/1
RelyNextHop: 0.0.0.0 Neighbor : 0.0.0.0
Tunnel ID: 0x0 Label: NULL
BKTunnel ID: 0x0 BKLabel: NULL
State: Active Adv Age: 00h01m27s
Tag: 0
# Display route 1.1.1.1/32 on Router D. You can see 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
IpPrecedence: QosLcId:
NextHop: 13.13.13.1 Interface: GigabitEthernet2/1/2
BkNextHop: 24.24.24.2 BkInterface: GigabitEthernet2/1/1
RelyNextHop: 0.0.0.0 Neighbor : 0.0.0.0
Tunnel ID: 0x0 Label: NULL
BKTunnel ID: 0x0 BKLabel: NULL
State: Active Adv Age: 00h01m27s
Tag: 0
Configuring BFD for RIP (single-hop echo detection)
Network requirements
As shown in Figure 12, GigabitEthernet 2/1/1 of Router A and Router C runs RIP process 1.
GigabitEthernet 2/1/2 of Router A runs RIP process 2. GigabitEthernet 2/1/2 on Router C and
GigabitEthernet 2/1/1 and GigabitEthernet 2/1/2 on Router B run RIP process 1.
Configure a static route destined for 100.1.1.1/24 and enable static route redistribution into RIP on Router
C so Router A can learn two routes destined for 100.1.1.1/24 through GigabitEthernet 2/1/1 and
GigabitEthernet 2/1/2, respectively, and uses the one through GigabitEthernet 2/1/1.
Enable BFD for RIP on GigabitEthernet 2/1/1 of Router A. When the link over GigabitEthernet 2/1/1
fails, BFD can quickly detect the link failure and notify it to RIP so RIP deletes the neighbor relationship
and the route information learned on GigabitEthernet 2/1/1, and uses the route destined for 100.1.1.1
24 through GigabitEthernet 2/1/2.