Legacy of The CIX As An Exchange Point
The CIX established the business model for the settlement-free exchange of Internet traffic between Network Service Providers. From an engineering perspective this was an important precursor to the Internet interconnection architecture that followed such as the Metropolitan Area Ethernet (MAE) and the NSF sponsored Network Access Points (NAPs) that were established for the transition of NSFNET traffic to competing service providers that included Sprint, ANS, internetMCI, and others.
By 1995 the CIX was essentially superseded by events both commercial and technical, though the CIX router continued to operate until 2001 when the UUNET peering session was turned down.
The hardware, a Cisco 7500 router, that had been the workhorse for most of the CIX's operational life (though not at its inception), together with papers and notes from the founding meetings (donated by Bill Schrader of PSINET) were acquired by the National Museum of American History in November 2005.
Read more about this topic: Commercial Internet E Xchange
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