line discipline
Technical term in data communication: the set of rules governing how a transmission line is controlled, including which station transmits and when.
In this protocol, data is transmitted according to the line discipline.
回線制御 is the broader concept of line control, while 回線制御規則 specifically refers to the rules or discipline governing that control.
Compound of 回線 (line, circuit), 制御 (control), and 規則 (rules, discipline). A direct translation of the English term 'line discipline'.