Experiences with TCP/IP over an ATM OC12 WAN

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Description

This paper discusses the performance testing experiences of a 622.08 Mbps OC12 link. The link will be used for large bulk data transfer, and as such, of interest are both the ATM level throughput rates and end-to-end TCP/IP throughput rates. Tests were done to evaluate the ATM switches, the IP routers, the end hosts, as well as the underlying ATM service provided by the carrier. A low level of cell loss, (resulting in <.01 % packet loss), decreased the TCP throughput rate considerably when one TCP flow was trying to use the entire OC12 bandwidth. Identifying and correcting cell loss ... continued below

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12 pages

Creation Information

Nitzan, Rebecca L. & Tierney, Brian L. December 23, 1999.

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Description

This paper discusses the performance testing experiences of a 622.08 Mbps OC12 link. The link will be used for large bulk data transfer, and as such, of interest are both the ATM level throughput rates and end-to-end TCP/IP throughput rates. Tests were done to evaluate the ATM switches, the IP routers, the end hosts, as well as the underlying ATM service provided by the carrier. A low level of cell loss, (resulting in <.01 % packet loss), decreased the TCP throughput rate considerably when one TCP flow was trying to use the entire OC12 bandwidth. Identifying and correcting cell loss in the network proved to be extremely difficult. TCP Selective Acknowledgement (SACK) improved performance dramatically, and the maximum throughput rate increased from 300 Mbps to 400 Mbps. The effects of TCP slow start on performance at OC12 rates are also examined, and found to be insignificant for very large file transfers (e.g., for a 10 GB file). Finally, a history of TCP performance over high-speed networks is presented.

Physical Description

12 pages

Notes

OSTI as DE00764365

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  • Other Information: PBD: 23 Dec 1999

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  • Report No.: LBNL--44765
  • Grant Number: AC03-76SF00098
  • DOI: 10.2172/764365 | External Link
  • Office of Scientific & Technical Information Report Number: 764365
  • Archival Resource Key: ark:/67531/metadc720224

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  • December 23, 1999

Added to The UNT Digital Library

  • Sept. 29, 2015, 5:31 a.m.

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  • April 4, 2016, 12:54 p.m.

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Nitzan, Rebecca L. & Tierney, Brian L. Experiences with TCP/IP over an ATM OC12 WAN, report, December 23, 1999; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc720224/: accessed August 17, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.