Patent ID: 8675506

Claim:
A network system for collecting, in a network including an access network and a transport network, pieces of statistical information including a traffic amount of the network and alarm information, comprising: an access terminal coupled to the access network; and an edge node for interconnecting the access network and the transport network, wherein the access terminal is configured to: measure pieces of statistical information including a traffic amount in the access terminal itself, and detect a device alarm and a communication alarm of the access terminal; and notify the edge node of the measured pieces of statistical information, and the device alarm and the communication alarm of the access terminal; wherein the edge node is configured to: collect the pieces of statistical information and device alarm and the communication alarm of the access terminal, notified by the access terminal; measure a traffic amount received from the access network; collect, from the access terminal, a traffic amount transmitted from the access terminal to the access network; calculate a difference between the measured traffic amount and the traffic amount collected from the access terminal; notify, in a case where the calculated difference is larger than a predetermined first threshold value, the access terminal of a bandwidth set in a manner that the traffic amount transmitted from the access terminal to the access network is smaller than a predetermined traffic amount; notify, in a case where the calculated difference is smaller than a predetermined third threshold value, the access terminal of a bandwidth set in a manner that the traffic amount transmitted from the access terminal to the access network is larger than a predetermined traffic amount; and wherein the access terminal is further configured to limit, based on the notified bandwidth, the traffic amount transmitted from the access terminal to the access network.