datagram congestion control protocol (DCCP)

The Datagram Congestion Control Protocol (DCCP) is a transport protocol that supports bidirectional unicast connections with congestion control of unsafe datagrams.

The DCCP protocol can be used where relatively large amounts of data are transmitted and where a compromise must be made between correct delivery in time and reliability in the transmission of datagrams.

The DCCP protocol is used in real-time transmission ofmedia streams to avoid congestion and congestion, and dynamically adapts the data rate to the transmission bandwidth. DCCP is a transport protocol that is used instead of the TCP protocol and, like the latter, is based on the IP protocol. It works like the UDP protocol without confirmation.

The DCCP header consists of two 16-bit data fields for the source and destination ports, further data fields for the data offset (8 bits ), several control fields, the 16-bit checksum field and a 24 or 48-bit sequence number field.