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Enabling an ISDN Interface as a Secondary Connection (Optional)

Continuous network connectivity is important to every network and crucial for businesses that depend on network connectivity for day-to-day operations and important business applications. The Services Router can be configured to fail over to the ISDN interface when the primary connection experiences interruptions in Internet connectivity.

ISDN backup connectivity is supported on all interfaces except ls-0/0/0.

To configure an interface for backup connectivity:

  1. Navigate to the top of the interfaces configuration hierarchy in either the J-Web or CLI configuration editor.
  2. Perform the configuration tasks described in Table 44.
  3. If you are finished configuring the router, commit the configuration.
  4. To verify that the network interface is configured correctly, see Verifying the ISDN Configuration.

Table 44: Configuring an Interface for ISDN Backup

Task

J-Web Configuration Editor

CLI Configuration Editor

Navigate to the Interfaces level in the configuration hierarchy.

  1. In the configuration editor hierarchy, select Configuration>View and Edit>Edit Configuration.
  2. Next to Interfaces, click Edit.

From the top of the configuration hierarchy, enter

edit interfaces interface-name unit number

Select the interface for backup ISDN connectivity.

  1. In the Interface name column, click the interface name.
  1. Under Unit, in the Nested Configuration column, click Edit.

Configure the backup interface—for instance, dl0.0.

  1. Next to Backup options, click Configure.
  2. In the Interface box, type dl0.0.
  3. Click OK until you return to the Interfaces page.

Enter

set backup-options dl0.0


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