Transitions the specified link instance of a particular llc2
    sap entity to the "on" state.

    enable [node node-id] llc2 sap simple-name link simple-name

    Example:

    enable llc2 sap sap-0 link dte-1

1  –  Exceptions

 o  Client Data Size Not Supportable

    The data size specified by a client opening an LLC2 port
    cannot be supported.

 o  Link Data Size Not Supportable

    The data size specified by the characteristic MAXIMUM DATA SIZE
    cannot be supported by the SAP owning this link.

 o  Remote Address In Use

    The remote MAC address and remote link service access
    point (LSAP) address are already being used by another link.