Introducing data center fabric, the next-generation Facebook data center network | Engineering Blog | Facebook Code | Facebook

The more than 1.35 billion people who use Facebook on an ongoing basis rely on a seamless, “always on” site performance. On the back end, we have many advanced sub-systems and infrastructures in place that make such a real-time experience possible, and our scalable, high-performance network is one of them.

Facebook’s production network by itself is a large distributed system with specialized tiers and technologies for different tasks: edge, backbone, and data centers. In this post, we will focus on the latest developments in our data center networking and unveil the next-generation architecture that we have successfully deployed in our new

Facebook’s network infrastructure needs to constantly scale and evolve, rapidly adapting to our application needs. The amount of traffic from Facebook to Internet – we call it “machine to user” traffic – is large and ever increasing, as more people connect and as we create new products and services. However, this type of traffic is only the tip of the iceberg. What happens inside the Facebook data centers – “machine to machine” traffic – is several orders of magnitude larger than what goes out to the Internet.

Our back-end service tiers and applications are distributed and logically interconnected. They rely on extensive real-time “cooperation” with each other to deliver a fast and seamless experience on the front end, customized for each person using our apps and our site. We are constantly optimizing internal application efficiency, but nonetheless the rate of our machine-to-machine traffic growth remains exponential, and the volume has been doubling at an interval of less than a year.



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