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.