Improvement of a TCP incast avoidance method using a fine-grained kernel timer

Shigeyuki Osada, Shogo Wakai, Yukinobu Fukushima, Tokumi Yokohira

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

When a standard TCP implementation using the minimum retransmission timeout (RTOmin) of 200 ms is used in distributed file systems in data centers, a well-known throughput degradation called TCP Incast occurs, because 200 ms is too large as an RTOmin in data centers. In order to avoid TCP Incast, a TCP implementation using a much smaller RTOmin attained by a fine-grained kernel timer is proposed. However, throughput still decreases in the implementation when the number of servers in distributed file systems is large. In this paper, we propose an improvement method introducing a new TCP option which enables a client to request servers to retransmit packets in a better timing. Numerical examples obtained by extensive simulation runs show the effectiveness of the improved method.

Original languageEnglish
Title of host publicationInternational Conference on Information and Communication Technology Convergence
Subtitle of host publicationICT Convergence Technologies Leading the Fourth Industrial Revolution, ICTC 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages147-152
Number of pages6
Volume2017-December
ISBN (Electronic)9781509040315
DOIs
Publication statusPublished - Dec 12 2017
Event8th International Conference on Information and Communication Technology Convergence, ICTC 2017 - Jeju Island, Korea, Republic of
Duration: Oct 18 2017Oct 20 2017

Other

Other8th International Conference on Information and Communication Technology Convergence, ICTC 2017
CountryKorea, Republic of
CityJeju Island
Period10/18/1710/20/17

Keywords

  • Data Center Networks
  • Incast
  • TCP
  • Throughput

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Computer Science Applications
  • Information Systems
  • Information Systems and Management

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  • Cite this

    Osada, S., Wakai, S., Fukushima, Y., & Yokohira, T. (2017). Improvement of a TCP incast avoidance method using a fine-grained kernel timer. In International Conference on Information and Communication Technology Convergence: ICT Convergence Technologies Leading the Fourth Industrial Revolution, ICTC 2017 (Vol. 2017-December, pp. 147-152). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICTC.2017.8190962