R0106-HP MSR Router Series High Availability Configuration Guide(V7)

Load-shared interface backup configuration example

Network requirements

As shown in Figure 5:

• Configure Serial 2/1/1 and Serial 2/1/2 on Router A to back up the primary interface Serial

2/1/0.

• Assign Serial 2/1/1 higher priority than Serial 2/1/2.

• On the primary interface:

{ Specify the interface bandwidth used for traffic load calculation.

{ Set the upper and lower thresholds to 80 and 20, respectively.

Figure 5 Network diagram

Configuration procedure

1. Assign IP addresses to interfaces, as shown in Figure 5. (Details not shown.)

2. Configure routes:

# On Router A, configure routes to 192.168.2.0/24 through the primary and backup interfaces.

<RouterA> system-view

[RouterA] ip route-static 192.168.2.0 24 serial 2/1/0

[RouterA] ip route-static 192.168.2.0 24 serial 2/1/1

[RouterA] ip route-static 192.168.2.0 24 serial 2/1/2

# On Router B, configure routes to 192.168.1.0/24.

<RouterB> system-view

[RouterB] ip route-static 192.168.1.0 24 serial 2/1/0

[RouterB] ip route-static 192.168.1.0 24 serial 2/1/1

[RouterB] ip route-static 192.168.1.0 24 serial 2/1/2

3. On Router A, configure backup interfaces and traffic thresholds:

# Specify Serial 2/1/1 and Serial 2/1/2 to back up Serial 2/1/0, and assign them with a

priority of 30 and 20, respectively.

[RouterA] interface serial 2/1/0

[RouterA-Serial2/1/0] backup interface serial 2/1/1 30

[RouterA-Serial2/1/0] backup interface serial 2/1/2 20

# Set the expected bandwidth to 10000 kbps on the primary interface.

[RouterA-Serial 2/1/0] bandwidth 10000