In the IntServ model, RSVP involves use of both the control plane and the data plane. In the control plane, RSVP provides a CAC function for reservation request which is based on whether the router has the resources to support the reservation request and whether the host making the request has the right to request the reservation. In the data plane, RSVP data flows are classified and policed based on the traffic descriptions contained in the RSVP messages, and queued to the appropriate queues.
RSVP Interface Bandwidth Queuing
This topic describes how bandwidth is used on an interface configured for RSVP.
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