Google announced collaborations with four of the industry’s leading content delivery network (CDN) providers: CloudFlare, Fastly, Highwinds, and Level 3 Communications.
The new CDN Interconnect program enables the customers of these CDN providers and the Google Cloud Platform to pay reduced prices for in-region Cloud Platform egress traffic (to approved CDN locations).
Google said this CDN Interconnect program will encourage the best practice of regularly distributing content originating from Cloud Platform out to the edge close to end-users. Google provides a private, high-performance link between Cloud Platform and the CDN providers, allowing content to travel a low-latency, reliable route from the Google data centers out to the end users. Google is recommending that publishers on the Google Cloud Platform to also use a CDN provider especially for heavy, frequently accessed content.
Google's network footprint currently extends to 70 PoPs in 33 countries.
Level 3 Content Delivery Network
is in 90+ major metro cities globally.
CloudFlare posted the following explanation: 30 CloudFlare points of presence (PoPs) are directly connected to Google Cloud Platform’s infrastructure. When one of these CloudFlare PoPs requests content from a Google Cloud Platform origin, it’s routed through a high-performance interconnect instead of the public Internet. This dramatically reduces latency for origin requests, and it also enables discounted Google Cloud Platform egress pricing in the US, Europe and Asia regions.
As of May 1st, Fastly has nine points of presence (POPs) interconnected with Google: San Jose, Los Angeles, Dallas-Fort Worth, Chicago, New York, Ashburn, Frankfurt, London, and Tokyo.
http://googlecloudplatform.blogspot.com/2015/09/push-google-cloud-origin-content-out-to-users.html
http://your.level3.com/GoogleCloudPlatformCDN