Worth Reading: Simulating the Internet

15 June 2021


Imagine you are developing a new protocol like TCP BBR, or a networked application like uTorrent. You could even be adding features to an existing application such as Skype. Your latest modification might sound great in theory, but how would you go about testing whether it would work well in the ‘real world’?

Worth Reading: Experience is the New Uptime

15 June 2021


It used to be that having a network that was up and running was the key priority for IT teams to worry about. Now, it’s the overall quality of the end-user experience. For retailers, assured network and application performance has become critical to successfully delivering modern shopping experiences.

Worth Reading: Bandwidth, system capacity and inter-satellite routing

14 June 2021


One important point to consider: I keep telling my students that the straight path to a D grade is to use the word ‘speed’ in conjunction with data communication — that it’s meaningless, and they ought to use words like ‘rate’, ‘capacity’, ‘latency’, ‘bandwidth’, ‘throughput’ and ‘goodput’ instead.

Worth Reading: Closing the Loop on Testing Network Changes

14 June 2021


Network changes, such as adding a rack, adding a VLAN or a BGP peer or upgrading the OS, can easily cause an outage and materially impact your business. Rigorous testing is key to minimizing the chances of change-induced outages.

Worth Reading: Driving a Differentiated Service Experience is the Next Opportunity

10 June 2021


Offering service differentiation at scale is a daunting task, but it’s also a great opportunity to capture new business, even as churn is minimized. Customers in every industry are genuinely excited about the possibilities of 5G, cloud and AI coming together.

Worth Reading: Securing the Future of IPv6

10 June 2021


One of the most important of these is the need for better IPv6 security, both for current networks and as a requirement for the implementation of new ones.

Worth Reading: IPv6 Adoption in 2021

9 June 2021


As part of our ongoing efforts to chart the rise and rise of IPv6, we’ve been looking into the difference between average IPv6 capability per country over a few days in June 2020 versus the most recent similar averages for 2021.

Worth Reading: The Space Cloud

9 June 2021


Cloud providers Amazon, Google, and Microsoft are building relationships with satellite companies at a rapid clip, working on two distinctly different objectives.

Worth Reading: Everything you wanted to know about LEO satellites, part 2: Constellations, gateways and antennas

8 June 2021


In this blog series (you can read part 1 here), we look at what is known about Low Earth Orbit (LEO) networks, what that tells us about the potential of these networks, and whether they’ll be the right choice in a particular situation.

Worth Reading: Of Donkeys, Mules and Horses–Store and Retrieve IP Prefixes Efficiently

8 June 2021


Storing and searching a full table of IP prefixes from the default free zone appears to be a solved problem, since this is the bread-and-butter of BGP speaking routers. Lots of research and engineering efforts have gone into making longest-matching-prefix searches for IP addresses in routers happen at wire-speed.