Resource Reservation Protocol

The Resource Reservation Protocol (RSVP) is a signaling protocol in the Internet Protocol stack. It allows recipients outside of a multicast group to determine their service requirements. This particular transfer rates for individual compounds may be reserved for specific applications, such as the transmission of video streams. In version 4 of the Internet Protocol (IPv4 ) such guarantees are not actually provided, which in the example of the video streams can lead to Pufferungspausen.

RSVP can also for the reservation of QoS (Quality of Service, QoS ) can be used in unicast transmissions. Such a reservation is structured as follows:

Possible level of QoS are rate - sensitive ( requested certain transmission rate ), delay - sensitive ( maximum delay ), and Best Effort.