Published at LXer: The HardenedBSD Foundation has partnered with Protectli, a manufacturer of open-source firewall appliances, to develop a censorship- and surveillance-resistant mesh network. ...

TCP BBR is one of the most powerful congestion control algorithms. In this article, we provide a comprehensive review of BBR analysis, expanding on existing knowledge across various fronts. Utilising ns3 simulations, we evaluate BBR's performance under diverse conditions, generating graphical representations. Our findings reveal flaws in the probe's RTT phase duration estimation and unequal bandwidth sharing between BBR and CUBIC protocols. Specifically, we demonstrated that the probe's RTT phase duration estimation algorithm is flawed and that BBR and CUBIC generally do not share bandwidth equally. Towards the end of the article, we propose a new improved version of TCP BBR which minimises these problems of inequity in bandwidth sharing and corrects the inaccuracies of the two key parameters RTprop and cwnd. Consequently, the BBR' protocol maintains very good fairness with the Cubic protocol, with an index that is almost equal to 0.98, and an equity index over 0.95.

Spotty Wi-Fi in certain areas of you home? A mesh network system can bring seamless connectivity to every corner. Here's what you need to know to choose the right system and set it up for optimal performance.

Have a larger home with Wi-Fi dead zones? A multi-node system might be a better solution than a traditional wireless router with extenders. Here are the best Wi-Fi mesh network systems we've tested in our labs.