A device for detection of the size of a communication network, by analysis of the waiting times for messages periodicals to be transmitted by a connecting member.

摘要

The device (D) has a control unit (MC) that is utilized for storing messages that are transmitted periodically. The control unit stores time difference data of a periodic message part. An analysis unit (MA) is utilized for determining whether time difference data satisfies a rule for determining whether a communication network (R) e.g. vehicle area network, is subjected to congestion when a storage area comprises time difference data of periodic messages of associated group.