METHOD FOR INTER-DOMAIN QOS ROUTING USING BGP INFORMATION

摘要

PURPOSE: A QoS routing method between domains using BGP information is provided to request QoS path calculation to a next AS in advance before the QoS path calculation. CONSTITUTION: An initial source BGP(Bolder Gateway Protocol) router receives a QoS(Quality of Service) path calculation request message(100). The source BGP router transmits the QoS path calculation request message to a related BGP router(110). The source BGP router calculates the QoS path of a related AS(Autonomous System)(120). The source BGP router receives the QoS path calculation result value of the AS from the BGP router(130). The source BGP router establishes the QoS path(140).