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Hierarchy Level

  • For platforms with ELS:

  • For platforms without ELS:


Configure the switch to forward all unknown unicast packets in a VLAN or on all VLANs to a particular interface.


Before you can configure unknown unicast forwarding within a VLAN, you must first configure that VLAN.

The remaining statements are explained separately. See CLI Explorer.


Unknown unicast packets are flooded to all interfaces that belong to the same VLAN.

Required Privilege Level

system—To view this statement in the configuration.system-control—To add this statement to the configuration.

Release Information

Statement introduced in Junos OS Release 9.3.

Hierarchy level [edit switch-options] introduced in Junos OS Release 13.2X50-D10. (See Using the Enhanced Layer 2 Software CLI for information about ELS.)