| 摘要 |
PROBLEM TO BE SOLVED: To provide a technique for stably supplying time information, even when a time transfer path is disconnected due to transmission path failures, or when a time-synchronizing server breaks down. SOLUTION: In a time-synchronizing method in a communication network, in which a plurality of communication apparatus are connected via communication paths, time information is supplied to the respective communication apparatuses by multiple systems; and a single time information is selected for use from among the time information acquired by the multiple systems, based on a preset priority order setting procedure by the respective communication apparatuses. The time information is supplied by the multiple different system, such as a time transfer path system and a server access system. |
