公开(公告)号：KR100554015B1

公开(公告)日：2006-02-22

申请号：KR1020020082636

申请日：2002-12-23

Applicant: 한국과학기술정보연구원

Inventor： 박형우 ,  홍정우 ,  김상완 ,  조금원 ,  장행진 ,  이종숙 ,  김은성 ,  임민열 ,  함재균 ,  구기범 ,  명훈주 ,  홍원택 ,  안준언 ,  권오경 ,  이지수 ,  이홍석 ,  정영균 ,  성춘호 ,  이상산

IPC: H04L29/06 ,  H04L12/801

CPC classification number: H04L69/16 ,  H04L47/10 ,  H04L47/193 ,  H04L47/27 ,  H04L47/29 ,  H04L47/37 ,  H04L69/163

Abstract: Disclosed are a system and a method for controlling a data transmission adapted for a grid computing and a computer readable recording medium of recording a process thereof, in which efficiently perform a grid computing using an ultrahigh speed communication network from an ultrahigh speed communication network in a non-congestion state to a communication network in a congestion state. TCP state information-providing section stores and provides TCP state information of a network. TCP state information-initializing section initializes TCP state information. Transmission mode-judging section judges a transmission mode of data to be transmitted according to the TCP state information. Packet processor generates and transmits traffic corresponding to each transmission mode classified according to the judgment result from transmission mode-judging section.

公开(公告)号：KR1020040056443A

公开(公告)日：2004-07-01

申请号：KR1020020082636

申请日：2002-12-23

Applicant: 한국과학기술정보연구원

Inventor： 박형우 ,  홍정우 ,  김상완 ,  조금원 ,  장행진 ,  이종숙 ,  김은성 ,  임민열 ,  함재균 ,  구기범 ,  명훈주 ,  홍원택 ,  안준언 ,  권오경 ,  이지수 ,  이홍석 ,  정영균 ,  성춘호 ,  이상산

IPC: H04L29/06 ,  H04L12/801

CPC classification number: H04L69/16 ,  H04L47/10 ,  H04L47/193 ,  H04L47/27 ,  H04L47/29 ,  H04L47/37 ,  H04L69/163

Abstract: PURPOSE: A data transmission control system suitable for grid computing, method therefor and a recording medium for reading a computer storing process of the same are provided to enhance transmission capability in high speed communication network and grid network environment by adopting a virtual buffer concept. CONSTITUTION: A TCP state information initializing unit initializes TCP state information by using a pre-set initial value(S100). A transmission mode determining unit determines a transmission mode of data based on the TCP state information(S120). The transmission mode determining unit checks whether the data transmission mode is an initial mode(S130). If it is not the initial mode, the transmission mode determining unit checks whether a CWND(transmittable window) is greater than an RWND(Receive Window)(S140). If so, the transmission mode determining unit checks whether an SWND(Send Window) is the same as the RWND(S150). The transmission mode determining unit checks whether the SWND is the same as or greater than the RWND and smaller than four times a reference point(SSTHRESH) indicating start of congestion(S160). If not, the transmission mode determining unit checks whether the SWND is greater than or the same as four times the reference point or smaller than eight times the reference point(S170), it transmits data at a high speed(S180). The transmitted data is uniformly distributed and transmitted(S190). The uniformly distributed data is fully delayed(S200). It is determined whether a packet of the data has been lost(S210). The reference point is reset to half of the SWND(S220).

Abstract translation: 目的：提供一种适用于网格计算的数据传输控制系统，其方法和用于读取其计算机存储过程的记录介质，以通过采用虚拟缓冲区概念来提高高速通信网络和网格网络环境中的传输能力。 构成：TCP状态信息初始化单元通过使用预设初始值初始化TCP状态信息（S100）。 传输模式确定单元基于TCP状态信息确定数据的传输模式（S120）。 传输模式确定单元检查数据传输模式是否是初始模式（S130）。 如果不是初始模式，则发送模式确定单元检查CWND（可发送窗口）是否大于RWND（接收窗口）（S140）。 如果是，则传输模式确定单元检查SWND（发送窗口）是否与RWND相同（S150）。 传输模式确定单元检查SWND是否与RWND相同或更大，并且小于指示拥塞开始的参考点（SSTHRESH）的四倍（S160）。 如果不是，传输模式确定单元检查SWND是否大于或等于参考点的四倍或小于参考点的八倍（S170），则它以高速传输数据（S180）。 发送的数据被均匀分布和发送（S190）。 均匀分布的数据完全延迟（S200）。 确定数据包是否已丢失（S210）。 参考点重置为SWND的一半（S220）。