Content Delivery Network Interconnection Footprint versus Capability information and exchange

In the current Internet, more and more providers are developing and deploying their own Content Delivery Networks in order to improve the Quality of Experience and decrease the load within their networks. An interesting scenario would be to interconnect these networks to cooperate between these different Content Delivery Networks. The IETF Content Delivery Network Interconnection Working Group has started defining and standardising the framework for interconnecting two Content Delivery Networks. This paper presents an overview of the CDN Interconnection framework and describes and analyses the terms Footprint and Capabilities information as well as the exchange protocols for such information, the extension to M-BGP for CDNi and ALTO. Keywords— CDN, Interconnection, Footprint, Capabilities, M-