Skip to main content

The DCCP Service Code

Document Type Replaced Internet-Draft (individual in tsv area)
Expired & archived
Author Gorry Fairhurst
Last updated 2015-10-14 (Latest revision 2007-06-20)
Replaced by draft-ietf-dccp-serv-codes
RFC stream Internet Engineering Task Force (IETF)
Intended RFC status (None)
Stream WG state (None)
Document shepherd (None)
IESG IESG state Replaced by draft-ietf-dccp-serv-codes
Action Holders
Consensus boilerplate Unknown
Telechat date (None)
Responsible AD Lars Eggert
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:


This document describes the usage of Service Codes by the Datagram Congestion Control Protocol, RFC 4340. Service Codes provide a method to identify the intended service/application to process a DCCP Connection Request. This provides improved flexibility in the use and assignment of port numbers for connection multiplexing. The DCCP Service Code can also enable more explicit coordination of services behind NATs and firewalls. This document motivates the setting of Service Codes by applications, rather than assigning a default Service Code value of zero.


Gorry Fairhurst

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)