A lapb port entity represents an access point for LAPB module clients to
    Data Link layer services.  The port-name refers to the port managed by this
    command.

1  –  status

    CLIENT NAME

       Name of the client with which the port is associated.

    LINK

       Name of the link with which the port is associated.

    STATE

       State of the lapb port entity.

       OPEN          - The port is assigned to a client.

       OPEN DISABLED - The port is assigned to a client, but the associated
                       link is disabled.

    TYPE

       Type of port.

       SEQUENCED    - The port is used for sending LAPB data.

       UNSEQUENCED  - The port is used for sending loopback data.  This is only
                      possible if the maintenance mode characteristic of the
                      relevant lapb link entity is set to true.