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This network diagram only illustrates a simple application where a dynamic route backup group is
used to monitor multiple subnets. In actual use, the monitored network segments can be connected
to multiple devices.
Configuration procedure
1. Configure Router A:
# Create a dialer access group rule.
<RouterA> system-view
[RouterA] dialer-rule 1 ip permit
# Create a dynamic route backup group to monitor three network segments.
[RouterA] standby routing-rule 1 ip 10.0.0.0 255.0.0.0
[RouterA] standby routing-rule 1 ip 11.0.0.0 255.0.0.0
[RouterA] standby routing-rule 1 ip 12.0.0.0 255.0.0.0
# Bundle timeslots on the CE1 interface into a PRI group.
[RouterA] controller e1 2/1
[RouterA-E1 2/1] pri-set
[RouterA-E1 2/1] quit
# Configure Serial 2/0 as an FR interface.
[RouterA] interface serial 2/0
[RouterA-Serial2/0] ip address 1.0.0.1 255.0.0.0
[RouterA-Serial2/0] link-protocol fr
[RouterA-Serial2/0] fr interface-type dte
[RouterA-Serial2/0] fr inarp
[RouterA-Serial2/0] fr map ip 1.0.0.2 100
[RouterA-Serial2/0] quit
# Configure C-DCC on the PRI interface.
[RouterA] interface serial 2/1:15
[RouterA-Serial2/1:15] ip address 2.0.0.1 255.0.0.0
[RouterA-Serial2/1:15] dialer enable-circular
[RouterA-Serial2/1:15] dialer-group 1
[RouterA-Serial2/1:15] dialer route ip 10.0.0.0 mask 8 660220
[RouterA-Serial2/1:15] standby routing-group 1
[RouterA-Serial2/1:15] quit
# Configure RIP.
[RouterA] rip
[RouterA-rip-1] network 1.0.0.0
[RouterA-rip-1] network 2.0.0.0
[RouterA-rip-1] import-route direct
# Configure the routes used by the serial interface to adopt higher priorities than those used by
the dialup interface.
[RouterA] interface serial 2/1:15
[RouterA-Serial2/1:15] rip metricin 2
2. Configure Router B:
# Create a dialer access group rule for dialup.
[RouterB] system
[RouterB] dialer-rule 1 ip permit
# Bundle timeslots on the CE1 interface into a PRI group.
[RouterB] controller e1 2/1
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