Immersive internet requires sub-millisecond latency

The German DE-CIX launched Finland's third internet interconnection point in late May. With the new connections Finnish companies users will have even faster connections. CEO Ivo Ivanov already painted a future where the virtual world works as fast as the real one. There are quite a few requirements for this network, especially in terms of latency.

At the end of May, DE-CIX launched Finland's third Internet access point with Nokia routers. With improved connections, Finland is closer to the other Nordic countries and Europe again. But what does it mean in terms of real-time, or immersive internet?

There has been a lot of research around the world on what kind of delay the human brain perceives as natural or pleasant in different situations. The delay can be 20 milliseconds in the sensation of touch, less than 13 milliseconds in detecting visual stimuli, and less than half a millisecond in hearing sound. This means that in order to be truly immersive, we allow, for example, a delay of milliseconds for an AR/VR experience.

The speed of light is 300 thousand kilometers per second, but Ivanov reminded that in one millisecond, under optimal conditions, the signal travels a maximum distance of 80 kilometers. So this is the so-called RTT time, i.e. the time it takes for a data packet to travel from the device to the destination and back. In practice, this means that the data has to be much closer for the experience to be pleasant. Immersive, if you will.

Thanks to DE-CIX's new connection point located in Equinix's data center, the "distance" between Finland and Frankfurt shrinks to less than 25 milliseconds. A data package travels to Oslo in 13.5 milliseconds, from there to Copenhagen 7.3 milliseconds and from Denmark to Hamburg 4.5 milliseconds. Next year, DECIX plans to open a new connection point to Stockholm, which will shorten the journey to the western neighbor to less than 10 milliseconds.

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