RFC 5595 · PROPOSED STANDARD · 2009

The Datagram Congestion Control Protocol Service Codes

Overview

RFC 5595, “The Datagram Congestion Control Protocol Service Codes”, is a Proposed Standard document published in September 2009 by G. Fairhurst. It updates RFC 4340. It has since been updated by RFC 6335. The canonical text is published by the RFC Editor.

Abstract

This document describes the usage of Service Codes by the Datagram Congestion Control Protocol, RFC 4340. It motivates the setting of a Service Code by applications. 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 use of a DCCP Service Code can also enable more explicit coordination of services with middleboxes (e.g., network address translators and firewalls). This document updates the specification provided in RFC 4340. [STANDARDS-TRACK]

Abstract as published in the RFC, via rfc-editor.org.

What “Proposed Standard” means

An entry-level standards-track specification: stable, peer-reviewed and a solid basis for implementation, though it may still evolve before becoming an Internet Standard.

Read this RFC

The canonical text of RFC 5595 is hosted at rfc-editor.org. Available in TXT,HTML.

Relationships to other RFCs
This RFC updates
RFC 4340
Updated by
RFC 6335
Other RFCs from 2009

Who Is Online

In total there are 68 users online: 0 registered, 60 guests and 8 bots.

Most users ever online was 5,555 on 17 Jul 2026, 3:23 am.

Bots: AhrefsBot Applebot Baiduspider Bingbot Majestic Other Bot PetalBot SemrushBot

Users active in the past 15 minutes. Total registered members: 372