The TIME-WAIT state in TCP and its effect on busy servers

Faber, Ted; Touch, Joseph D.; Yue, Wei Thoo

doi:10.1109/infcom.1999.752180

Cited by 26 publications

(18 citation statements)

References 6 publications

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“…Many researchers [Hasegawa et al 1999;Faber et al 1999;Bruyeron et al 1998;Heidemann 1997;Mathis et al 1997] studied the performance of TCP and suggested improvements ( [Rhee et al 1999;Pazos et al 1999]). Many others were interested in the modeling and analysis of TCP [Yang 1999;Mo et al 1999;Paxon 1994].…”

Section: Introductionmentioning

confidence: 99%

Improving TCP performance over mobile networks

ElAarag

2002

ACM Comput. Surv.

144

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Transmission Control Protocol (TCP) is the most commonly used transport protocol on the Internet. All indications assure that mobile computers and their wireless communication links will be an integral part of the future internetworks. In this paper, we present how regular TCP is well tuned to react to packet loss in wired networks. We then define mobility and the problems associated with it. We discuss why regular TCP is not suitable for mobile hosts and their wireless links by providing simulation results that demonstrate the effect of the high bit error rates of the wireless link on TCP performance. We discuss and illustrate the problems caused by the mobility of hosts using a graph tracing packets between fixed and mobile hosts. We then present a survey of the research done to improve the performance of TCP over mobile wireless networks. We classify the proposed solutions into three categories: link layer, end-to-end and split. We discuss the intuition behind each solution and present example protocols of each category. We discuss the protocols functionality, their strengths and weaknesses. We also provide a comparison of the different approaches in the same category and on the category level. We conclude this survey with a recommendation of the features that need to be satisfied in a standard mobile TCP protocol.

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Section: Introductionmentioning

confidence: 99%

Improving TCP performance over mobile networks

ElAarag

2002

ACM Comput. Surv.

144

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“…This period can be as long as four minutes. During this period, a certain amount of memory must be maintained, and the port cannot be reused for the same remote host and port [13].…”

Section: Stagementioning

confidence: 99%

Investigating the limits of SOAP performance for scientific computing

Chiu

Govindaraju

Bramley

Proceedings 11th IEEE International Symposium on High Performance Distributed Computing

185

137

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The growing synergy between Web Services and Gridbased technologies [7] will potentially enable profound, dynamic interactions between scientific applications dispersed in geographic, institutional, and conceptual space. Such deep interoperability requires the simplicity, robustness, and extensibility for which SOAP [4,3] was conceived, thus making it a natural lingua franca. Concomitant with these advantages, however, is a degree of inefficiency that may limit the applicability of SOAP to some situations. In this paper, we investigate the limitations of SOAP for high-performance scientific computing. We analyze the processing of SOAP messages, and identify the issues of each stage. We present a high-performance SOAP implementation and a schema-specific parser based on the results of our investigation. After our SOAP optimizations are implemented, the most significant bottleneck is ASCII/double conversion. Instead of handling this using extensions to SOAP, we recommend a multiprotocol approach that uses SOAP to negotiate faster binary protocols between messaging participants.

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“…However, web sites close a connection once it becomes idle for a short period of time in order to free resources and prevent certain types of denial of service attacks [5], [6], [18]. This is captured in our model where an established connection is re-used to download multiple objects, but closed once the pageview is complete.…”

Section: Client-server Interaction Modelmentioning

confidence: 99%

Connection and performance model driven optimization of pageview response time

Kumar

Olshefski

Zhang

2009

2009 IEEE International Symposium on Modeling, Analysis &Amp; Simulation of Computer and Telecommunication Systems

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Managing client perceived pageview response time for multiple classes of service is essential in today's highly competitive, e-commerce environment. We present Connection and Performance Model Driven Optimization (CP-MDO), a novel approach for providing optimal QoS as defined by a cost objective based on client perceived pageview response time and pageview drop rate. Our approach combines two vital models: 1) a latency model for connection establishment that captures the interactions between web browsers and web servers across network protocol layers and 2) a server performance model based on queueing theory that models performance across all tiers of a server complex. An algorithm capable of enforcing the optimal admission control based on the inter-arrival time between pageview admissions is given. Our approach has been implemented and evaluated in an experimental setting, demonstrating how CP-MDO achieves the minimal cost while providing minimal pageview response times under minimal drop rates across multiple classes of service.

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The TIME-WAIT state in TCP and its effect on busy servers

Cited by 26 publications

References 6 publications

Improving TCP performance over mobile networks

Improving TCP performance over mobile networks

Investigating the limits of SOAP performance for scientific computing

Connection and performance model driven optimization of pageview response time

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