- backup-options {
- interface interface-name;
- }
- [edit interfaces interface-name unit logical-unit-number],
- [edit logical-systems logical-system-name interfaces interface-name unit logical-unit-number]
Statement introduced before JUNOS Release 7.4.
Configure an interface to be used as a backup interface if the primary interface goes down. This is used to support ISDN dial backup operation.
The remaining statement is explained separately.
See Configuring ISDN Logical Interface Properties.
interface—To view this statement in the configuration.
interface-control—To add this statement to the configuration.
J-series Services Router Basic LAN and WAN Access Configuration Guide