Internet Exchange Point

Definition: An Internet (IX) is a layer 2 service to facilitate the interconnection between Internet Service Providers and Large Scale Network Savvy Content Providers.

An IX facilitates peering between players, usually across a public and/or private peering fabric of some type. Ethernet is the most common IX public peering fabric.

Definition: Public Peering is Internet Peering across a shared (more than two party) peering fabric.

Most Internet Exchange Points offer some form of public peering, typically using ethernet as the layer 2 fabric. In some cases, private peering is a reasonable alternative or complementary service.

Public Peering diagram

Most IXes enable or support both public and private peering. See the US vs European Exchange Points for a description of alternative models of IXes.


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The 2014 Internet Peering Playbook is now available on the iPad at the Apple Store and for the Amazon Kindle. The Kindle, ePub and PDF form are also perpetually updated on the DrPeering DropBox share.