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Hierarchy Level


Configure the loopback pseudointerface in a redundancy group.

Redundancy groups are used to bundle interfaces into a group for failover purpose in a chassis cluster setup. You can configure a loopback interface as an alternative physical interface to reach the peer gateway. Loopback interfaces can be configured on any redundancy group.

For example: An Internet Key Exchange (IKE) gateway operating in chassis cluster, needs an external interface to communicate with a peer device. When an external interface (a reth interface or a standalone interface) is used for communication; the interface might go down when the physical interfaces are down. Instead, use loopback interfaces as an alternative to physical interfaces.



Configure the redundancy group number.

  • Range: 0 through 255

Required Privilege Level

interface—To view this statement in the configuration.

interface-control—To add this statement to the configuration.

Release Information

Statement introduced in Junos OS Release 12.1X44-D10.