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— Blog

Evolving Internet Exchange Points

July 6, 2017

Multiple networks need a physical infrastructure, and intersection, where they can connect and exchange information. It’s called an Internet exchange point (IXP) and it’s a big part of what makes the digital world go around. The IXP all about the free flow of data from network to network, from Internet service providers (ISPs) to content delivery networks (CDNs) to content providers to eye-ball networks or any other networks in the digital neighborhood.

In the United States traffic moving between networks has traditionally passed through IXPs owned and operated by data center companies or by telecommunications providers such as Verizon -- for-profit companies with a cost model that includes a fees structure for the traveling through their IXPs, and port fees and cross connect fees.

A European Twist

Not so in Europe. A different model developed and grew. Not-for-profit, data center-agnostic organizations began implementing internet exchanges. These IXPs were spread across multiple data centers in a particular metro region and didn’t necessarily have the same fees structure attached to the data traveling across them. The model evolved and migrated from Europe to the U.S. and other parts of the world. Of the not-for-profit IXPs that have become established in this country, the London Exchange (LINX) boasts 740 members connecting from over 71 different countries worldwide and can be found in Ashburn, VA (LINX NoVa).

What are the benefits of having an IXP in a data center?

The proliferation and expansion of not-for-profit IXPs went hand in hand with the establishment across the US of IXPs in third-party data centers, some of which are owned by wholesale data center providers like Digital Realty.

There are benefits of having an IXP in your data center:

  • Improved network performance
  • Decreased network latency
  • Elimination of bringing traffic from outside the data center to connect to an internet exchange

Data centers without in-house IXPs have to backhaul their network data over dark fiber to an exchange located in a separate facility. That can be time consuming, that can be costly, and that can have a degraded impact on the network performance.

Learn more about the benefits of the Digital Realty Internet Exchange.

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