DCCP ( Datagram Congestion Control Protocol ) is an OSI model transport layer protocol developed by the IETF . Adopted as a standard in March 2006 . It provides mechanisms to track network congestion, avoiding the need to create them at the application level. This protocol does not guarantee the delivery of information in the proper order.
| DCCP | |
|---|---|
| Title | Datagram congestion control protocol |
| Level ( OSI model ) | Transport |
| Family | TCP / IP |
| Created in | 2002 |
| Port / ID | 33 / IP |
| Protocol Purpose | Analog UDP with traffic density control |
| Specification | RFC 4340 |
| Main implementations | Linux |
DCCP is very effective for applications in which data arriving out of time becomes useless. For example, streaming media broadcasting, online games and Internet telephony. The main feature of these applications is that old messages become very useless very quickly, so it’s better to get a new message than try to forward the old one. But at the moment, most of these applications independently implement congestion monitoring, and TCP or UDP are used as the transmission protocol .
DCCP is available on the Linux kernel since version 2.6.14 and is improving with every release.
To tunnel DCCP packets through NAT, a special protocol called DCCP-UDP has been developed. [one]
Notes
- ↑ RFC 6773