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The module describes RSVP as the signaling mechanism used in QoS enabled networks. The module builds on knowledge about the IntServ model with the addition of Common Open Policy Service (COPS) discussed in the introductory module. | 7 Signaling Mechanism Overview The module describes RSVP as the signaling mechanism used in QoS enabled networks. The module builds on knowledge about the IntServ model with the addition of Common Open Policy Service COPS discussed in the introductory module. Objectives Upon completion of this module you will be able to perform the following tasks Describe Resource Reservation Protocol RSVP . Configure RSVP. Describe and configure RSVP on shared media using Subnet Bandwidth Management SBM . Monitor and troubleshoot RSVP. Resource Reservation Protocol RSVP Overview The section introduces Resource Reservation Protocol RSVP as the signaling mechanism in QoS-enabled networks using the Integrated Services model. Objectives Upon completion of this lesson you will be able to perform the following tasks Describe Resource Reservation Protocol RSVP . Configure RSVP. Monitor and troubleshoot RSVP. 7-2 IP QoS Signaling Mechanism Copyright 2001 Cisco Systems Inc. Resource Reservation Protocol RSVP is a protocol used to reserve resources in a path between a source and a destination RSVP signals all network devices that a certain application needs certain QoS guarantees RSVP requires applications to initiate the request RSVP by itself does not provide any guarantees An RSVP-interoperable QoS mechanism WFQ CB-WFQ must be used to implement guarantees according to RSVP reservations 2001 Cisco Systems Inc. IP QoS Signaling Mechanism S RSVP is an Internet Engineering Task Force IETF signaling protocol used to reserve bandwidth in a path between a source and a destination. In RSVP the end-node the application node station reserves bandwidth for a flow along its path to a destination in a network. The user can supply the information about how much capacity to reserve. RSVP mechanisms enable real-time traffic to reserve bandwidth necessary for consistent latency. A video conferencing application can use settings in the router to propagate a request for a path with the required bandwidth
