IXP – Internet Exchange Points
An IXP allows ISP (Internet Service Providers)to extend their network by exchanging routing information and traffic with other ISPs. The ISP buys a connection to the exchange point and locates a router at the physical location of the LAN that forms the IXP. An IXP may therefore be defined as: A physical network infrastructure (layer 2), operated by a single entity to facilitate the exchange of Internet traffic between ISPs. The number of ISPs connected should be at least three and there must be a clear and open policy for others to join.
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