R3303-HP HSR6800 Routers Layer 3 - IP Routing Configuration Guide

BFD for static routes configuration example (direct next hop)

Network requirements

In Figure 3, configure a static route to subnet 120.1.1.0/24 on Router A, configure a static route to subnet

121.1.1.0/24 on Router B, and enable BFD for both routes. Configure a static route to subnet 120.1.1.0/24

and a static route to subnet 121.1.1.0/24 on Router C. When the link between Router A and Router B

through the Layer 2 switch fails, BFD can detect the failure immediately and inform Router A and Router

B to communicate through Router C.

Figure 3 Network diagram

Device Interface IP address

Device

Interface

IP address

Router A GE2/1/1 12.1.1.1/24

Router B

GE2/1/1 12.1.1.2/24

GE2/1/2 10.1.1.102/24 GE2/1/2 13.1.1.1/24

Router C GE2/1/1 10.1.1.100

GE2/1/2 13.1.1.2/24

Configuration procedure

1. Configure IP addresses for the interfaces. (Details not shown.)

2. Configure static routes and BFD:

# Configure static routes on Router A and enable BFD control packet mode for the static route

through the Layer 2 switch.

<RouterA> system-view

[RouterA] interface GigabitEthernet 2/1/1

[RouterA-GigabitEthernet2/1/1] bfd min-transmit-interval 500

[RouterA-GigabitEthernet2/1/1] bfd min-receive-interval 500

[RouterA-GigabitEthernet2/1/1] bfd detect-multiplier 9

[RouterA-GigabitEthernet2/1/1] quit

[RouterA] ip route-static 120.1.1.0 24 GigabitEthernet 2/1/1 12.1.1.2 bfd

control-packet

[RouterA] ip route-static 120.1.1.0 24 GigabitEthernet 2/1/2 10.1.1.100 preference

[RouterA] quit

# Configure static routes on Router B and enable BFD control packet mode for the static route

through the Layer 2 switch.

<RouterB> system-view

[RouterB] interface GigabitEthernet 2/1/1

[RouterB-GigabitEthernet2/1/1] bfd min-transmit-interval 500

[RouterB-GigabitEthernet2/1/1] bfd min-receive-interval 500