Abstract
Many efforts are devoted to increase the understanding of the complex and evolving Internet ecosystem. Internet eXchange Points (IXP) are shared infrastructures where Autonomous Systems (AS) implement peering agreements for their traffic exchange. In recent years, IXPs have become an increasing research target since they represent an interesting microcosm of the Internet diversity and a strategic vantage point to deliver end-user services. In this paper, we analyze the largest set of public IXPs in a single country, namely the IX.br project in Brazil. Our in-depth analyses are based on BGP data from all looking glass servers and provide insights into the peering ecosystem per IXP and from a nation-wide perspective. We propose a novel peering affinity metric well-suited to measure the connectivity between different types of ASes. We found lower values of peering density in IX.br compared to more mature ecosystems, such as AMS-IX, DE-CIX, LINX, and MSK-IX. Our final contribution is sharing the 15 GB dataset along all supporting code.
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Notes
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According to NIC.br, there are currently 45 candidates interested in hosting the new IXPs. Interested entities, be it commercial or not, are only requested to operate neutrally and free of fees to IXP participants.
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Although IX.br is a national project, we highlight that a member peered at one IXP of IX.br is not connected to the members of other IXPs.
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Acknowledgements
This work was supported by the Innovation Center of Ericsson, Brazil. The authors would like to thank Antonio Moreiras (NIC.br) and Antonio Galvao Filho (IX.br) for their help in accessing all LGs. We also thank Giovanni Comarela and Steve Uhlig for their insightful comments on earlier versions of the paper.
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Brito, S.H.B., Santos, M.A.S., Fontes, R.d.R., Perez, D.A.L., Rothenberg, C.E. (2016). Dissecting the Largest National Ecosystem of Public Internet eXchange Points in Brazil. In: Karagiannis, T., Dimitropoulos, X. (eds) Passive and Active Measurement. PAM 2016. Lecture Notes in Computer Science(), vol 9631. Springer, Cham. https://doi.org/10.1007/978-3-319-30505-9_25
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