
308621-14.00 Rev 00
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Chapter 13
Customizing Backup Circuits
The router activates a backup circuit when a leased circuit fails. To configure
backup service, you designate a leased circuit as a primary circuit. This
designation tells the router to activate a backup circuit if the leased circuit fails. If
you have not configured a leased circuit, you cannot configure a backup circuit.
For PPP configurations only, you should have set up a backup pool according to
the instructions in Chapter 2, “Starting Dial Services Using Site Manager” or
Chapter 3, “Starting Dial Services Using the BCC,” and added PPP backup
circuits.
This chapter includes the following information:
For a complete description of frame relay and PPP backup service, see Chapter 1,
“Dial Services Overview.”
Topic Page
Creating a PPP Backup Circuit for a Direct Mode PVC 13-2
Creating Frame Relay Backup Circuits for Group Mode PVCs 13-5
Customizing PPP and Frame Relay Backup Circuits 13-10
Scheduling Backup Circuit Availability 13-18
Removing PPP or Frame Relay Backup Service 13-22
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