NDLI: Analysis of TCP Vegas and TCP Reno

Content Provider	IEEE Xplore Digital Library
Author	Ait-Hellal, O. Altman, E.
Copyright Year	1997
Description	Author affiliation: Inst. Nat. de Recherche en Inf. et Autom., Sophia Antipolis, France (Ait-Hellal, O.)
Abstract	The best known congestion control mechanism for the TCP/IP protocols, is that proposed by Van Jacobson (1988) dubbed Tahoe. Revised two years after (Van Jacobson, 1990), by including fast recovery and fast retransmit (Stevens, 1994), the new version called Reno achieves more bandwidth utilization and retransmits less data than its predecessor. However its method of predicting the available bandwidth by provoking losses, is the main source of large averages and variances of rtt (round trip time) and also of aggressiveness (network saturation). Brakmo and Peterson (1995) proposed a new congestion avoidance algorithm dubbed Vegas based on some modifications to the source behavior of Reno. In this paper we use an analytic fluid approach in order to analyze the different features of both Vegas and Reno. We then use simulations to confirm our analytic results. When the available bandwidth is high, our results confirm the claims of Brakmo and Peterson (1995) and An et al. (1995); indeed Vegas can retransmit less than one-fifth as much data as Reno does, so that the higher the available bandwidth is, the more efficient Vegas is. However, under heavy congestion Vegas behaves like Reno and does not manage to make efficient use of its new mechanism for detection of congestion. The analytic results that we obtain are the evolution of the window size, round trip times and their averages, and the average throughput.
Starting Page	495
Ending Page	499
File Size	548676
Page Count	5
File Format	PDF
ISBN	0780339258
DOI	10.1109/ICC.1997.605357
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1997-06-12
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Bandwidth TCPIP Throughput Size control Electronic mail Protocols Jacobian matrices Analytical models Tail Filtering theory
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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