Method for Providing DiffServ Based VoIP QoS on Router

摘要

PURPOSE: A method for supplying DiffServ(Differentiated Service)-based VoIP QoS information through a router is provided to add VoIP flow and QoS information to a flow table for performing a packet forwarding process, and to transmit the added information to an intermediate router, thereby supplying QoS information on a VoIP packet by sharing session information. CONSTITUTION: An SIP(Session Initiation Protocol) server(620) and a router(631) have TCP connections to an active QoS control server(610) by using a TCP port(S601,S602,S605). The router(631) informs the QoS control server(610) of router configuration information(S603,S606). The SIP server(620) informs the QoS control server(610) of the configuration information. When the router configuration information and the configuration information of the SIP server(620) are changed, the router(631) and the SIP server(620) transmit a changed configuration information message to the QoS control server(610) again(S607,S608,S609). The QoS control server(610) updates the configuration information.