Huawei v200r001 DDR Using Dialer Map as Backup, Solution 1 Logical interface as backup interface

User Manual - Configuration Guide (Volume 3)	Chapter 1
Versatile Routing Platform	DDR Configuration

Quidway(config-if-Serial0)# dialer in-band

Quidway(config-if-Serial0)# dialer-group 1

Quidway(config-if-Serial0)# dialer map ip 100.1.1.2 8810052

Quidway(config-if-Serial0)# dialer map ip 100.1.1.2 8810060

2)Configure router B:

Quidway(config)# dialer-list 1 protocol ip permit

Quidway(config)# interface dialer 0

Quidway(config-if-Dialer0)# ip address 100.1.1.2 255.255.255.0

Quidway(config-if-Dialer0)# dialer in-band

Quidway(config-if-Dialer0)# dialer-group 1

Quidway(config-if-Dialer0)# interface serial 0

Quidway(config-if-Serial0)# physical-layer async

Quidway(config-if-Serial0)# modem

Quidway(config-if-Serial0)# dialer rotary-group 0

Quidway(config-if-Serial0)# interface serial 1

Quidway(config-if-Serial1)# physical-layer async

Quidway(config-if-Serial1)# modem

Quidway(config-if-Serial1)# dialer rotary-group 0

1.6.17DDR Using Dialer Map as Backup

I.Networking requirements

We have designed two configurations in which the logical interface designed by dialer map is used as backup interface and as main interface. In the following diagram, we have configured backup in router A. s0 port of router A is configured as dial port, and s1 port is configured as DDN directly connected port of encapsulation PPP.

II. Networking diagram

			8810060
			Modem
Router A	8810048	PSTN	Router B
			8810052
	Modem		Modem

Figure DC-1-20Networking diagram of the configuration example of DDR with dialer map as backup

III. Configuration procedure

Solution 1: Logical interface as backup interface

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