SCTP协议提高吞吐量的研究

SCTP协议作为一种新兴的传输层协议，由于其具有一些良好的特性而广泛应用于IP网络进行信令传输。本文针对SCTP协议的传输模式提出新的路由最优负荷分担多径传输模式，另外对其拥塞控制重发机制也做了改进。最后用NS-2对改进后的协议进行仿真测试，证实这种路由最优负荷分担多径传输对SCTP协议的吞吐量有很大的提高。     

流控制传输协议高级特性介绍

流控制传输协议(SCTP)是IETF为了实现在IP网络上传递电信的信号系统7(SS7)信令消息而设计的协议。在下一代通信网络中广泛采用信令传输协议(SIGTRAN)来传输控制信令,而SCTP是SIGTRAN协议的一个组成部分。SCTP是一种基于IP的可靠传输层协议,它的传输机制和高级特性,包括多宿主与多流的机制,使得它相对于传统的传输层协议(传输控制协议(TCP)、用户数据报协议(UDP))具有明显的优势。     

流控制传输协议研究

文章介绍了流控制传输协议(SCTP)的主要特点:支持多穴主机,支持消息的无序递交,提供端到端的可靠性,提供面向消息的传输,提供相对TCP增强的流量控制和拥塞控制,提供更好的安全性和可扩展性;分析了SCTP的主要应用,强调作为一种通用的传输层协议SCTP是今后发展的方向;综合考察了当前SCTP的研究进展,并给出了相关结论,认为SCTP是一种功能强大的传输层协议.     

SS7 over IP 的关键技术SCTP 概述

介绍了SCTP在信令传输中的使用，随后就SCTP的基本特性，分组格式和协议行为进行了阐述。     

基于SCTP多数据流特性的WEB传输

SCTP是为了在IP网络中传输基于消息的SS7信令而开发的传输层协议，它是可靠的，面向消息的协议。SCTP具有很多新的特点，在对SCTP的多数据流特性研究的基础上，提出使用多数据流特性进行WEB传输的机制，仿真结果的分析表明，使用SCTP来进行WEB的传输比TCP更加可靠，速度更快。     

SCTP与TCP的功能对比及应用分析

本讨论了IP网中新一代传输协议-流控制传输协议（SCTP）的特性及应用，并对SCTP和TCP的功能和应用进行分析比较，可以给协议的使用在选择使用何种协议时提供参考意见。     

SS7 over IP的关键技术SCTP概述

介绍了SCTP在信令传输中的使用，随后就SCTP的基本特性、分组格式和协议行为进行了阐述。     

SCTP应用于SIP消息传送的研究

简单介绍了SCTP协议的结构和内部功能以及SIP的会话过程．分析了SCTP适用于SIP传输层协议的特性,最后给出了SCTP应用于SIP的参数扩展及SIP消息到SCTP流的映射方式。     

SCTP与TCP的功能对比及应用分析

本文讨论了IP网中新一代传输协议———流控制传输协议(SCTP)的特性及应用,并对SCTP和TCP的功能和应用进行分析比较,可以给协议的使用者在选择使用何种协议时提供参考意见。     

SCTP协议在雷达情报传输中的应用研究

流控制传输协议(SCTP)是IETF提出的一个构架于IP层之上的新的传输层协议,具有多流、多宿等特性.对SCTP的应用研究得出,与UDP/TCP相比,SCTP更适合在恶劣的高丢包率的战场环境中应用,有利于传输报文短、突发量大、实时性高的雷达情报,并能有效地减小时延,提高传输可靠性,便于路径切换,更好的抵御拒绝访问,从而进一步提高网络的容错能力和通信质量.     

SCTP: state of the art in research, products, and technical challenges

The stream control transmission protocol (STCP) is being standardized by the IEFT as a reliable transport protocol to transport SS7signaling messages over IP networks. Due to its attractive features such as multistreaming and multihoming, SCTP has received much attention from the network community, in terms of both research and development. This article introduces the main features of SCTP, and discusses the state of the art in SCTP research and development activities. We also provide a survey of the available products that use SCTP. Finally with a view to stimulating further research in this area, the challenges faced by the SCTP research community are identified.     

SCTP数据传输模式在SG中应用研究

信令流控制传送协议(SCTP)是根据RFC 2960(2000)建议制定的。SCTP协议主要用于在IP网中传送PSTN的信令消息。基于SCTP数据传输模式的基本功能,首先对比分析SCTP与TCP的特点和适用范围,对No.7信令与IP网互通的信令网关(SG)设备进行介绍,详细论述了在M2PA方式下SCTP的应用,并展望SCTP的发展前景。     

Evaluation of SCTP for space networks

The stream control transmission protocol has recently been standardized as a new transport layer protocol in the IP protocol suite. SCFP is based on the TCP protocol, but incorporates a number of advanced and unique features that are not available in TCP. Although the suitability of TCP over satellite networks has been widely studied, the suitability of SCTP over satellite networks remains to be evaluated. The objective of this article is to investigate the suitability of SCTP for data communications over satellite networks. We focus on the advanced features of SCTP that enhance its performance in satellite networks. Finally, we provide recommendations on the use of SCTP over satellite networks.     

Secure SCTP – A Versatile Secure Transport Protocol

The Stream Control Transmission Protocol (SCTP) is a new general purpose transport protocol defined by the IETF. Originally intended for the transport of voice signaling data (SS7) over IP networks, SCTP together with newly defined extensions is increasingly considered for other application scenarios as well. These require strong security solutions to authenticate the communication partners and protect sensitive data with respect to integrity and confidentiality. Proposals have been issued on how to protect SCTP transport by using standard security protocols such as TLS and IPsec. However, these solutions introduce limitations or inefficiencies und thus may not be able to fully exploit the capabilities of SCTP. Therefore, we propose a security extension to SCTP named Secure SCTP (S-SCTP) to solve these issues in an efficient and user-friendly way.     

基于SCTP的SIP的研究

在基于IP的3G移动网络中,SIP将是主要的信令协议。IMS第五版本要求支持SIP的服务器具有拥塞控制能力。SCTP是为IP网传输电话信令而设计的,但它的许多特征也适用于传输SIP消息(如拥塞控制机制)。文章研究了如何用SCTP传输SIP信令消息。     

Improving stream control transmission protocol performance over lossy links

The current stream control transmission protocol (SCTP) does not work well over lossy links. To make SCTP congestion control algorithms robust in lossy networks, the paper first introduces a fine-tuned explicit congestion notification (ECN) mechanism for SCTP in such environment, and then discusses the ECN-D SCTP that can differentiate noncongestion losses from congestion losses. We identify the optimal value of the congestion window for an SCTP source in response to ECN messages in order to maximize the throughput and maintain relatively small end-to-end delay. A simple and practical method to achieve the optimal value is developed by carefully choosing the threshold of queues that support ECN. Because the total goodput performance of SCTP associations is not sensitive to window reduction policies when the network load is heavy, and because fine-tuning SCTP or transmission control protocols congestion window in response to congestion indications using complicated methods may not be worth the increase in complexity of the protocol, the simplified method becomes attractive in achieving the optimal congestion window.     

SCTP在无线网络上的最佳协议参数配置分析

本文研究了在WLAN、GPRS、UMTS这3种无线网络上运行流控制传输协议(SCTP)时,不同的协议参数配置对系统传输性能的影响。文中找出了达到最大系统传输性能时的SCTP协议参数设置,从而解决了符合IETF-RFC2960的SCTP应用于无线网络上协议最佳参数选择的关键问题。理论分析和仿真结果表明,运行于无线网络上时,采用了最佳参数配置的SCTP协议传输性能明显地高于采用传统参数配置的SCTP协议。     

Chunk Checksum of SCTP for Throughput Enhancement

Stream control transmission protocol (SCTP) uses a checksum in the common header for each packet, by which a corrupted SCTP packet will be regarded as a loss. This letter proposes a new "chunk checksum" scheme for SCTP, in which each data chunk contains its own checksum field to determine a corruption of data chunk. Simulation results show that the proposed scheme could improve the throughput of SCTP transmission in the networks with a high bit error rate