
Starting Dial Backup Using the BCC
117353-B Rev. 00
3-15
For example:
isdn-switch/3# switch-type brini1
Go to the next section, “Go to Creating Backup Circuits and Specifying the
Backup Mode” to create backup circuits.
Creating Backup Circuits and Specifying the Backup Mode
After you set up the backup pool, you want to configure backup circuits and
backup mode for these circuits. The backup mode
determines which router
initiates dialing to establish a backup connection if the primary circuit fails.
To do this, navigate to the leased interface prompt for which you are configuring
backup service. For example, to navigate to the leased interface on slot 2,
connector 1, enter:
cwc; serial
<
slot/connector
>;
ppp
For example:
backup-pool/8# cwc; serial 2/1; ppp
Creating the Circuit and the Mode
To create a backup circuit for the leased circuit enter:
backup-circuit pool-id
<
pool-ID
>
backup-mode
<
mode
>
mode can be:
initiator - Instructs the router to initiate dialing. The router at the other end must
be set to receiver so that it waits until the initiator router makes the call. Only one
router on the link can serve as the initiator. If both are set to initiator, they may try
to initiate a call simultaneously, resulting in a collision on the network.
receiver - Instructs the router to wait to receive the call from the initiator.
If you
configure the router to be the receiver, you need to make a caller resolution entry
for the circuit. By requiring an entry, ensures that you identify the remote initiator
router. The local router can then verify the initiator’s identity and accept the
incoming calls.
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