Resource Reservation Protocol for Real- Time QoS

摘要

Real-time applications require end-to-end Quality of Service(QoS) in order tornbe accepted and used. One approach to achieve end-to-end QoS is tornprovide end-to-end resource reservations. Resource ReSerVation Protocolrn(RSVP) is a unicast and multicast signalling protocol for setting uprnnetwork bandwidth reservation. In this paper, we discuss resourcernreservation protocol and it's reservation.rnQuality of Service is implemented for a particular data flow by a mechanismrncalled "traffic control". A set of quality requirement on the collectivernbehavior of one or more objects. A number of QoS parameters describe thernspeed and reliability of data transmission, e.g., throughput, transit delay, andrnerror rate.rnThe RSVP protocol is part of a larger effort to enhance the current Internetrnarchitecture with support for Quality of Service flows. The RSVP protocol isrnused by a host to request specific Quality of Service from the network forrnparticular application data streams or flows. RSVP is also used by routers torndeliver Quality-of-Service (QoS) requests to all nodes along the path(s) of thernflows and to establish and maintain state to provide the requested service.rnRSVP requests will generally result in resources being reserved in each nodernalong the data path.