R0106-HP MSR Router Series Layer 3 - IP Routing Configuration Guide(V7)

11.4.1.2/32 Direct 0 0 127.0.0.1 InLoop0

127.0.0.0/8 Direct 0 0 127.0.0.1 InLoop0

127.0.0.0/32 Direct 0 0 127.0.0.1 InLoop0

127.0.0.1/32 Direct 0 0 127.0.0.1 InLoop0

127.255.255.255/32 Direct 0 0 127.0.0.1 InLoop0

Configuring BFD for RIP (single-hop echo detection for a

directly connected neighbor)

Network requirements

As shown in Figure 11, 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 of Router C and

GigabitEthernet 2/1/1 and GigabitEthernet 2/1/2 of 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 failure and notify it to RIP so RIP deletes the neighbor

relationship and route information learned on GigabitEthernet 2/1/1, and uses the route destined

for 100.1.1.1 24 through GigabitEthernet 2/1/2.

Figure 11 Network diagram

Configuration procedure

1. Configure basic RIP and enable BFD on the interfaces:

# Configure Router A.

<RouterA> system-view

[RouterA] rip 1

[RouterA-rip-1] version 2

[RouterA-rip-1] undo summary

[RouterA-rip-1] network 192.168.1.0

[RouterA-rip-1] quit

[RouterA] interface gigabitethernet 2/1/1

[RouterA-GigabitEthernet2/1/1] rip bfd enable

[RouterA-GigabitEthernet2/1/1] quit