
Configuring Dial Services
13-2
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Table 13-1 lists the instructions you should use to configure backup circuits.
You cannot configure a bandwidth-on-demand circuit as a primary circuit.
Creating a PPP Backup Circuit for a Direct Mode PVC
If your frame relay circuit is configured as a direct mode PVC, that is, there is
only one PVC in the service record, you must configure PPP for the backup
circuit. This is called circuit backup.
Using the BCC
To configure a PPP backup circuit for a frame relay PVC:
1.
Configure a frame relay leased interface.
For example, to create a frame relay interface on a synchronous interface on
slot 5 connector 1 and configure a service record, navigate to the serial prompt
and enter:
serial/5/1#
frame-relay; service to-Boston; pvc 100
To create a frame relay interface on an MCT1 connector, navigate to the
logical line entry for the MCT1 interface and enter:
logical-line/to-Boston#
frame-relay; service to-Boston; pvc 100
Table 13-1. Dial Backup Configurations
Primary Circuit Protocol
Backup Circuit
Protocol
Refer to this section for
configuration instructions
Standard PPP (async or sync) “Creating PPP Dial Backup Circuits”
on page 2-19 (Site Manager)
“Configuring PPP Backup Circuits” on
page 3-19 (BCC)
PPP PPP (async or sync)
Frame relay backing up
only one PVC
(
circuit backup
)
PPP (async or sync) “Creating a PPP Backup Circuit for a
Direct Mode PVC” on page 13-2
Frame relay backing up
the entire interface
(
link backup
)
Site Manager configurable
only.
frame relay “Creating Frame Relay Backup
Circuits for Group Mode PVCs” on
page 13-5
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