supervisory format

A format used to perform data link supervisory control functions, such as acknowledge Ⅰ frames, request retransmission of Ⅰ frames, and request temporary suspension of transmission of Ⅰ frames.; 用以執行數據鏈路管理控制操作［功能］的一種信息格式,管理控制功能［操作］可以是:認可Ⅰ幀、請求重新傳送Ⅰ幀、請求暫停傳送Ⅰ幀 等等。參閱information format, unnumbered format。