TIE breaking: Tunable interdomain egress selection

Renata Teixeira, Timothy G. Griffin, Mauricio G.C. Resende, Jennifer L. Rexford

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

17 Scopus citations

Abstract

The separation of intradomain and interdomain routing has been a key feature of the Internet's routing architecture from the early days of the ARPAnet. However, the appropriate "division of labor" between the two protocols becomes unclear when an Autonomous System (AS) has interdomain routes to a destination prefix through multiple border routers-a situation that is extremely common today because neighboring domains often connect in several locations. We believe that the current mechanism of early-exit or hot-potato routing-where each router in an AS directs traffic to the "closest" border router based on the intradomain path costs-is convoluted, restrictive, and sometimes quite disruptive. In this paper, we propose a flexible mechanism for routers to select the egress point for each destination prefix, allowing network administrators to satisfy diverse goals, such as traffic engineering and robustness to equipment failures. We present one example optimization problem that uses integer-programming techniques to tune our mechanism to improve network robustness. Experiments with topology and routing data from two backbone networks demonstrate that our solution is both simple (for the routers) and expressive (for the network administrators).

Original languageEnglish (US)
Title of host publicationCoNEXT 2005 - Proceedings of the 2005 ACM Conference on Emerging Network Experiment and Technology
Pages93-104
Number of pages12
DOIs
StatePublished - Dec 1 2005
Event1st International Conference on Emerging Networking Experiments and Technologies, CoNEXT'05 - Toulouse, France
Duration: Oct 24 2005Oct 27 2005

Publication series

NameCoNEXT 2005 - Proceedings of the 2005 ACM Conference on Emerging Network Experiment and Technology

Other

Other1st International Conference on Emerging Networking Experiments and Technologies, CoNEXT'05
CountryFrance
CityToulouse
Period10/24/0510/27/05

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

Keywords

  • BGP
  • Egress-point selection

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    Teixeira, R., Griffin, T. G., Resende, M. G. C., & Rexford, J. L. (2005). TIE breaking: Tunable interdomain egress selection. In CoNEXT 2005 - Proceedings of the 2005 ACM Conference on Emerging Network Experiment and Technology (pp. 93-104). (CoNEXT 2005 - Proceedings of the 2005 ACM Conference on Emerging Network Experiment and Technology). https://doi.org/10.1145/1095921.1095935