计算机工程与应用 ›› 2009, Vol. 45 ›› Issue (15): 130-131.DOI: 10.3778/j.issn.1002-8331.2009.15.037

• 网络、通信、安全 • 上一篇    下一篇

支持QoS服务的SCTP中伪共享问题的研究

李晓夏,杜中军,贾 钊   

  1. 四川大学 计算机学院,成都 610065
  • 收稿日期:2008-04-01 修回日期:2008-06-23 出版日期:2009-05-21 发布日期:2009-05-21
  • 通讯作者: 李晓夏

Research about false-sharing of SCTP based on QoS

LI Xiao-xia,DU Zhong-jun,JIA Zhao   

  1. Department of Computer,Sichuan University,Chengdu 610065,China
  • Received:2008-04-01 Revised:2008-06-23 Online:2009-05-21 Published:2009-05-21
  • Contact: LI Xiao-xia

摘要: 多流是流控制传输协议(SCTP)的一个重要特点,利用这个特点可以在同一个关联中传输不同优先级的数据包。然而当前的SCTP协议规范并没有提供对QoS服务的支持,提出对SCTP的一种改进,但是由此引出伪共享问题。主要研究了伪共享对于SCTP性能的危害,并通过对SCTP拥塞系统的改进解决了伪共享问题,最后通过仿真实验进行了证实。

关键词: 流控制传输协议, 服务质量, 子组流, 拥塞控制, 伪共享

Abstract: Multi-stream is an important characteristic of SCTP,which provides an aggregation mechanism for SCTP association to accommodate heterogeneous objects,which originate from the same application but may require different type of QoS from network.The current SCTP specification is not aware of QoS provided by networks,and an extension of SCTP provided to support QoS.However,another problem——false-sharing comes out.This paper provides a method which solves the false-sharing problem,and is validated by simulate experiments.

Key words: Stream Control Transmission Protocol(SCTP), Quality of Service(QoS), sub-flows, congestion control, false-sharing