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Archive for January, 2008

European Internet exchange update slides

I presented a talk on recent European Internet exchange news [download] with Mike Hughes from the LINX last week at UKNOF. Many of the attendees run networks that do not peer publicly, so it was a pleasure to explain the impact that European IXPs have on member traffic. We also then gave a perspective on peering in London.

Many of the statistics came from Serge at Euro-IX who did the leg work for the raw figures.

The highlight points of the talk were

  • Euro-IX identify 103 exchanges in Europe, in 31 countries. (3 in 1993)
  • 8 Exchanges in the UK (was 9 until BT’s UK6x closed)
  • At the end of 2007 networks publicly peered 1.215Tbit/sec at peak.
  • More public peering in EU than US (but it’s cheaper to peer in EU thanks to lower x-connect fees, and cheap ubiquitous mutual exchanges)
  • London is #1 for network reach – 601 networks peer publicly, 415 peer exclusively in the UK.
  • 22% of LINX members peer exclusively at LINX, 31% of LONAP members peer exclusively at LONAP.
  • 577 networks peer at more than one IXP, and one network (Colt) is present at 19 exchanges!
  • Last year the good weather in April caused an additional summer-time traffic dips in Europe, in addition to the regular dip in July/August

There’s other stuff in the slides too, such as the usual traffic updates for various major exchanges in Europe.