Help us improve your experience.

Let us know what you think.

Do you have time for a two-minute survey?


interface-set (Dynamic VLAN Interface Sets Definition)


Hierarchy Level


For MX Series routers with MPC/MIC modules that face the access side of the network, configure an agent circuit identifier (ACI) or access-line-identifier (ALI) interface set for the creation of dynamic VLAN subscriber interfaces for DHCP or PPPoE subscribers based on information about the subscriber access line received in DHCP or PPPoE control packets.

An ACI or ALI interface set is a logical collection of subscriber interfaces that originate at the same household or on the same access-loop port. An ACI set is created based on the receipt only of the ACI for the subscriber access line in a DHCP or PPPoE control packet. An access-line-identifier set is created based on the receipt of a trusted option, which can be the ACI, the ARI, both these identifiers, or the absence of both these identifiers.

You specify the trigger for either interface set type at the [edit dynamic-profiles profile-name interfaces “$junos-interface-ifd-name” unit “$junos-interface-unit” auto-configure] hierarchy level. For ACI interface sets, use the agent-circuit-identifier statement. For ALI interface sets, use the line-identity statement.

You must associate the interface set with the dynamic subscriber interface by including the interface-set stanza in the dynamic profile that defines the interface set.


  • interface-set-name—Name of the ACI interface set, which is represented in a dynamic profile by the predefined variable $junos-interface-set-name.

The remaining statements are explained separately. Search for a statement in CLI Explorer or click a linked statement in the Syntax section for details.

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 12.2.