CIPT: Using tuangou to reduce IP transit costs

Rade Stanojevic, Ignacio Castro, Sergey Gorinsky

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

19 Citations (Scopus)

Abstract

A majority of ISPs (Internet Service Providers) support connectivity to the entire Internet by transiting their traffic via other providers. Although the transit prices per Mbps decline steadily, the overall transit costs of these ISPs remain high or even increase, due to the traffic growth. The discontent of the ISPs with the high transit costs has yielded notable innovations such as peering, content distribution networks, multicast, and peer-to-peer localization. While the above solutions tackle the problem by reducing the transit traffic, this paper explores a novel approach that reduces the transit costs without altering the traffic. In the proposed CIPT (Cooperative IP Transit), multiple ISPs cooperate to jointly purchase IP (Internet Protocol) transit in bulk. The aggregate transit costs decrease due to the economies-of-scale effect of typical subadditive pricing as well as burstable billing: not all ISPs transit their peak traffic during the same period. To distribute the aggregate savings among the CIPT partners, we propose Shapley-value sharing of the CIPT transit costs. Using public data about IP traffic of 264 ISPs and transit prices, we quantitatively evaluate CIPT and show that significant savings can be achieved, both in relative and absolute terms. We also discuss the organizational embodiment, relationship with transit providers, traffic confidentiality, and other aspects of CIPT.

Original languageEnglish
Title of host publicationProceedings of the 7th Conference on Emerging Networking EXperiments and Technologies, CoNEXT'11
DOIs
Publication statusPublished - 1 Dec 2011
Event7th ACM International Conference on Emerging Networking EXperiments and Technologies, CoNEXT'11 - Tokyo, Japan
Duration: 6 Dec 20119 Dec 2011

Publication series

NameProceedings of the 7th Conference on Emerging Networking EXperiments and Technologies, CoNEXT'11

Other

Other7th ACM International Conference on Emerging Networking EXperiments and Technologies, CoNEXT'11
CountryJapan
CityTokyo
Period6/12/119/12/11

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Keywords

  • Shapley value
  • burstable billing
  • cost sharing
  • group buying
  • network economics

ASJC Scopus subject areas

  • Computer Networks and Communications

Cite this

Stanojevic, R., Castro, I., & Gorinsky, S. (2011). CIPT: Using tuangou to reduce IP transit costs. In Proceedings of the 7th Conference on Emerging Networking EXperiments and Technologies, CoNEXT'11 (Proceedings of the 7th Conference on Emerging Networking EXperiments and Technologies, CoNEXT'11). https://doi.org/10.1145/2079296.2079313