This attribute indicates the most recent A-bit status received from
the subnet. The A-bit status is part of the LMI protocol. It indicates
willingness to accept data from the Protocol Port associated with
this GvcIf. When an inactive status is sent out, the Frame Relay
service discards any data offered from the Protocol Port. When an
active status is sent out, the Frame Relay service tries to process all
data offered from the Protocol Port.