Support: All
    Default: No data link  Value: Local-entity-name

    Name of the entity within the data link module to be created when
    a port is opened for that data link type. You can modify this
    characteristic only when the entity is disabled. This attribute
    is supported for all types of circuits, however for X.25 circuits
    set the attribute to x25 access.

    set [node node-id] routing circuit circuit-name -
        data link entity [local entity name]

    Examples:

    set routing circuit csmacd-1 -
         data link entity csma-cd station csmacd-1

    set routing circuit x25_circuit-1 data link entity x25 access