SDX: Software defined internet exchange

Arpit Gupta, Laurent Vanbever, Muhammad Shahbaz, Sean P. Donovan, Brandon Schlinker, Nicholas G. Feamster, Jennifer L. Rexford, Scott Shenker, Russ Clark, Ethan Katz-Bassett

Research output: Contribution to journalConference articlepeer-review

3 Scopus citations


BGP severely constrains how networks can deliver traffic over the Internet. Today's networks can only forward traffic based on the destination IP prefix, by selecting among routes offered by their immediate neighbors. We believe Software Defined Networking (SDN) could revolutionize wide-area traffic delivery, by offering direct control over packet-processing rules that match on multiple header fields and perform a variety of actions. Internet exchange points (IXPs) are a compelling place to start, given their central role in interconnecting many networks and their growing importance in bringing popular content closer to end users. To realize a Software Defined IXP (an "SDX"), need new programming abstractions that allow participating networks to create and run these applications and a runtime that both behaves correctly when interacting with BGP and ensures that applications do not interfere with each other. We must also ensure that the system scales, both in rule-table size and computational overhead. In this demo, we show how we tackle these challenges demonstrating the flexibility and scalability of our SDX platform. The paper also appears in the main program [1].

Original languageEnglish (US)
Pages (from-to)579-580
Number of pages2
JournalComputer Communication Review
Issue number4
StatePublished - Feb 25 2015
EventACM SIGCOMM 2014 Conference - Chicago, United States
Duration: Aug 17 2014Aug 22 2014

All Science Journal Classification (ASJC) codes

  • Software
  • Computer Networks and Communications


  • BGP
  • Internet exchange point (IXP)
  • Software defined networking (SDN)


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