Journal of the Institute of Electronics Engineers of Korea TC (대한전자공학회논문지TC)

The Institute of Electronics and Information Engineers (대한전자공학회)
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Improving Performance behavior of TCP over ATM Network in multiple losses of packets

다중 패킷 손실에서 TCP-ATM 네트워크의 성능개선 방안

  • 박우출 (한양대학 전자공학과) ;
  • 박상준 (한양대학 전자통신전파공학과) ;
  • 이병호 (한양대학 전자컴퓨터공학부)
  • Published : 2000.10.01
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Abstract

In this paper, we analyze TCP congestion control algorithm over ATM-UBR network. TCP congestion control algorithm consists of slow start, congestion avoidance, fast recovery, fast retransmit. We analyze the ATM-UBR network service using the BSD 4.3 TCP Reno, Vanilla. However we found the fact that the characteristic of fast retransmit, recovery algorithm makes a serious degradation of Performance in multiple losses of packets. We propose new fast retransmit, recovery algorithm to improve the problem. The results of performance analysis improve the multiple losses of packets using a proposed fast retransmit, recovery algorithm.

본 논문에서는 ATM망에서의 UBR 서비스를 이용한 네트워크 구성에서의 TCP 혼잡 제어 알고리즘에 따른 성능 분석을 하였다. TCP 혼잡 제어 알고리즘에는 Slow Start, Congestion Avoidance, Fast Recovery, Fast Retransmit등으로 이루어져 있다. TCP Reno, TCP Vanilla을 사용하여 ATM-UBR 서비스 망을 구축하여 성능을 비교 분석하였다. 그러나 Fast Retransmit, Recovery 알고리즘의 특성에 의하여 다중 패킷 손실이 발생할 때의 ATM-UBR 네트워크에서도 성능 저하 현상이 현저하게 발생하였다. 이러한 현상에 대한 해결책으로 본 논문은 새로운 Fast Retransmit, Recovery 알고리즘을 제시하여 성능을 개선하였다.

Keywords

References

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