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Hierarchy Level

Release Information

Statement introduced before Junos OS Release 7.4.

Starting with Junos OS Release 18.2R1, the SRX Series devices support frame-relay encapsulation and adds DLCI information to the given frame.


For Frame Relay and Multilink Frame Relay (MLFR) user-to-network interface (UNI) network-to-network interface (NNI) encapsulation only, and for link services, voice services and point-to-point interfaces only, configure the data-link connection identifier (DLCI) for a permanent virtual circuit (PVC) or an switched virtual circuit (SVC). The DLCI setups a frame-relay PVC to form a L2 point-to-point connection. This is used for peering different LT IFL pairs.

To configure a DLCI for a point-to-multipoint interface, use the multipoint-destination statement to specify the DLCI.


dlci-identifier—Data-link connection identifier.

Range: 16 through 1022.

Required Privilege Level

interface—To view this statement in the configuration.

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