Subspace Rebuilt the Internet for Real-Time Applications

Re:Subspace Rebuilt the Internet for Real-Time Applications by quentusrex on Thursday October 28, 2021 @05:46PM (#29032474)

That's actually a pretty close guess. In order to get to the measurement capabilities that we needed, we had to build our own internal systems. Some of those systems had a small mention in this public talk: https://www.youtube.com/watch?v=kyu_wDcO0S4&t=7140s

There are several major issues when trying to measure network paths in real time, but one in particular is how to avoid the assumption about path latency related to RTT/2. The latency of a path one direction rarely is half of the over all round trip latency, usually there are a combination of things that cause path asymmetry.

Anything you or others would like to know more about in terms of network performance measurements?

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Re:Subspace Rebuilt the Internet for Real-Time Applications by jlmcguire on Thursday October 28, 2021 @06:36PM (#29032908)

Thanks for the reply! Nice talk! I spent around a month going down the perfsonar rabbit hole and set some cool stuff up. It was really instructive. At the end of the day work didn't operate a large enough network for us to get great insights from the perfsonar network.

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