FIELD: radio engineering, communication.
SUBSTANCE: method comprises the stages whereat: during 802.1X client network access the authentication node used for access authentication sends, according to the valid period of maintaining the activity of the authentication node, the activity monitoring request message to the 802.1X client to determine whether the 802.1X client has lost the connection to the network; and if the authentication node does not receive the response message to the activity monitoring request from the 802.1X client in response to the activity monitoring request message for a period of time specified for the authentication node, the authentication node determines that the 802.1X client has lost connections to the network; otherwise, it determines that the 802.1X client is connected to the network.
EFFECT: improving the use of the network resource, reducing the protection problem caused by the overload of the authentication node, and reducing the risk of errors in subscriber fee accruals for the connection time.
12 cl, 11 dwg
