DCCP

Currently 0.00/5
1
2
3
4
5

天下维客，你可以修改的网络知识库

DCCP正在翻译。欢迎您积极翻译与修订。

**网络协议** 编辑
应用层	DNS, FTP, ENRP，HTTP, IMAP, IIRC, NNTP, POP3, SIP, SMTP, SNMP, SSH, Telnet, BitTorrent ...
传输层	DCCP, SCTP, TCP, RTP, UDP, IL, RUDP, ...
网络层	IPv4, IPv6...
数据链路层	以太网, Wi-Fi, 令牌环, MPLS, PPP ...
物理层	RS-232, EIA-422, RS-449, EIA-485, 10BASE2, 10BASE-T ...

数据拥塞控制协议

英文:Datagram Congestion Control Protocol, DCCP
是当前IETF一个针对传输层的协议而发展出来。

Applications that might make use of DCCP include those with timing constraints on the delivery of data such that reliable in-order delivery, when combined with congestion control, is likely to result in some information arriving at the receiver after it is no longer of use. Such applications might include streaming media and Internet telephony. Congestion control is the way that a network protocol discovers the available network capacity on a particular path. The primary motivation for the development of DCCP is to provide a way for such applications to gain access to standard congestion control mechanisms without having to implement them at the application layer.

DCCP is intended for applications that require the flow-based semantics of TCP, but which do not want TCP's in-order delivery and reliability semantics, or which would like different congestion control dynamics than TCP. Similarly, DCCP is intended for applications that do not require features of SCTP such as sequenced delivery within multiple streams.

To date most such applications have used either TCP, with the problems described above, or used UDP and implemented their own congestion control mechanisms (or no congestion control at all). The purpose of DCCP is to provide a standard way to implement congestion control and congestion control negotiation for such applications. One of the motivations for DCCP is to enable the use of ECN, along with conformant end-to-end congestion control, for applications that would otherwise be using UDP. In addition, DCCP implements reliable connection setup, teardown, and feature negotiation.

A DCCP connection contains acknowledgement traffic as well as data traffic. Acknowledgements inform a sender whether its packets arrived, and whether they were ECN marked. Acks are transmitted as reliably as the congestion control mechanism in use requires, possibly completely reliably.

[编辑]

External links

es:Datagram Congestion Control Protocol fr:Datagram Congestion Control Protocol he:DCCP pt:Datagram Congestion Control Protocol

网络是在20世纪60年代末开始发展起来的，最初是美国专门用于军事研究的专用计算机网，后建立军用网。90年代中期专用计算机网技术的迅速发展，使它变成了一个普及全球的信息网络。

互联网的英文名字是Internet ，汉译音为因特网。它是一个具体的网络实体，没有一个特定的网络疆界，泛指通过网关连接起来的网络集合，即是一个由各种不同类型和规模的独立运行与管理的计算机网络组成的全球范围的计算机网络。组成Internet的计算机网络，包括局域网(LAN)、城域网(MAN)以及大规模的广域网(WAN)等。

网络分类

相关概念