Sender RTT Estimate Option for the Datagram Congestion Control Protocol (DCCP) (RFC6323) (01-Jul-2011)

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IP.com Prior Art Database Disclosure (Source: IPCOM)

Disclosure Number IPCOM000209190D dated 01-Jul-2011

Added to Prior Art Database on 30-Jul-2011

Disclosed by: ISOC

Country: United States

Related People

G. Renker - AUTHOR [+1]

Disclosure File: 26 pages / 27.5 KB / English (United States)

The Datagram Congestion Control Protocol (DCCP) [RFC4340] is a transport protocol for connection-oriented, unreliable, and congestion-controlled datagram delivery. In DCCP, an application has a choice of congestion control mechanisms, each specified by a Congestion Control Identifier (CCID; [RFC4340], Section 10).

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Internet Engineering Task Force (IETF) G. Renker Request for Comments: 6323 G. Fairhurst Updates: 4342, 5622 University of Aberdeen Category: Standards Track July 2011 ISSN: 2070-1721

Sender RTT Estimate Option for the Datagram Congestion Control Protocol (DCCP)

Abstract

This document specifies an update to the round-trip time (RTT) estimation algorithm used for TFRC (TCP-Friendly Rate Control) congestion control by the Datagram Congestion Control Protocol (DCCP). It updates specifications for the CCID-3 and CCID-4 Congestion Control IDs of DCCP.

The update addresses parameter-estimation problems occurring with TFRC-based DCCP congestion control. It uses a recommendation made in the original TFRC specification to avoid the inherent problems of receiver-based RTT sampling, by utilising higher-accuracy RTT samples already available at the sender.

It is integrated into the feature set of DCCP as an end-to-end negotiable extension.

Status of This Memo

This is an Internet Standards Track document.

This document is a product of the Internet Engineering Task Force (IETF). It represents the consensus of the IETF community. It has received public review and has been approved for publication by the Internet Engineering Steering Group (IESG). Further information on Internet Standards is available in Section 2 of RFC 5741.

Information about the current status of this document, any errata, and how to provide feedback on it may be obtained at http://www.rfc-editor.org/info/rfc6323.

Renker & Fairhurst Standards Track [Page 1]
RFC 6323 Sender RTT Estimate Option for DCCP July 2011

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Table of Contents

1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3

2. Problems Caused by Sampling the...

(Source: IPCOM)

(Source: IPCOM)