METHOD OF GUARANTEE FOR END-TO-END QUALITY OF SERVICE, USING SIP AND RSVP-TE

摘要

A method for guaranteeing end-to-end QoS(Quality of Service) among terminals using SIP(Session Initiation Protocol) and RSVP-TE is provided to assure end-to-end QoS by setting a QoS guaranteed packet flow through UNI(User-Network Interface) signaling and RSVP-TE Server/CAC(Call Admission Control) of an ISP. According to a method for guaranteeing end-to-end QoS(Quality of Service) among terminals using SIP(Session Initiation Protocol) and RSVP-TE, a terminal provides SIP/SDP(Session Description Protocol), RSVP-TE(Resource Reservation Protocol-Traffic engineering) agent functions. A service provider constitutes all functions in one router or a switch.