TCP selective acknowledgments and UBR drop policies to improve ATM-UBR performance over terrestrial and satellite networks

Author

Goyal, Rohit ; Jain, Raj ; Kalyanaraman, Shivkumar ; Fahmy, Sonia ; Vandalore, Bobby ; Kota, Sastri

Author_Institution

Dept. of Comput. Inf. Sci., Ohio Univ., Athens, OH, USA

fYear

1997

fDate

22-25 Sep 1997

Firstpage

17

Lastpage

25

Abstract

We study the performance of selective acknowledgements (SACK) with TCP over the ATM-UBR service category. We examine various unspecified bit rate (UBR) drop policies, TCP mechanisms and network configurations to recommend optimal parameters for TCP over UBR. We discuss various TCP congestion control mechanisms compare their performance for LANs and WANs. We describe the effect of satellite delays on TCP performance over UBR and present simulation results for LANs, WANs and satellite networks. SACK TCP improves the performance of TCP over UBR, especially for large delay networks. Intelligent drop policies at the switches are an important factor for good performance in local area networks

Keywords

asynchronous transfer mode; delays; local area networks; performance evaluation; satellite communication; telecommunication congestion control; transport protocols; wide area networks; ATM-UBR performance; ATM-UBR service; LAN; TCP performance; TCP selective acknowledgments; UBR drop policies; WAN; congestion control mechanism; intelligent drop policies; large delay networks; local area networks; network configurations; optimal parameters; satellite delays; satellite networks; simulation results; switches; terrestrial networks; unspecified bit rate; Computer networks; Electronic mail; Information science; Local area networks; Performance analysis; Performance loss; Satellites; Switches; Telecommunication congestion control; Wide area networks;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer Communications and Networks, 1997. Proceedings., Sixth International Conference on

Conference_Location

Las Vegas, NV

ISSN

1095-2055

Print_ISBN

0-8186-8186-1

Type

conf

DOI

10.1109/ICCCN.1997.623286

Filename

623286