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February 18, 2020

Google’s new transport protocol BBR offers significant improvements in the queueing and throughput performance of connections when compared to the state-of-the-art TCP CUBIC. For example, TCP BBR flows show a 2 to 20 times improvement in throughput when compared to TCP...

August 17, 2019

Google has recently developed a new algorithm called BBR (B for Bottleneck, B for Bandwidth, R for Round-Trip-Time) which dramatically changes the way in which information flows on the Internet. BBR throughput and latency improvements have been observed independently a...

December 5, 2018

Rather than running at faster clock-speeds, modern CPUs increasingly rely on multi-core technology to deliver performance. High performance devices such as smart phones and desktop PCs leverage the power of multi-core CPUs to enable multitasking; i.e., the capability t...

September 13, 2018

With the Internet expected to support an estimated 30 billion devices by 2020 (on the so-called Internet-of-Things), the need for ultra-fast speeds within the network has never been greater. This need can be explained by Little’s Theorem in queuing theory which necessi...

January 2, 2018

An interesting fact about some of the most pervasive forms of digital telephony is that; instead of transmitting the raw bits derived from the digitization of the speech signal, a reduced set of (coded) parameters representing the speech production model is transmitted...

December 7, 2017

Typically, the cost of higher data rate links is less (unit cost wise) than the cost of a lower data rate links – for example; the bandwidth of a T3-link is 28 times that of a T1-link, but the cost of a T3-link is much less than 28 times the cost of a T1-link. However,...

October 30, 2017

The design of core/backbone network links is based on queuing theory; namely, given the ratio of the arrival rate of packets to the link transmission rate (i.e., link utilization) it is possible to determine the delay of packets at the queue; the latter of which should...

October 23, 2017

When deploying and operating broadband networks, it is essential to implement an analytical approach that determines if congestion is occurring at a potential bottleneck link or at a link with a high level of subscriber aggregation. Indeed, it is entirely possible for ...

October 10, 2017

Whereas congestion is readily apparent to Internet subscribers when their download speeds deteriorate resulting in performance degradation such as a lower video quality and/or buffering, the same cannot be said of Network Operators who have to find a way to detect cong...

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Deploying BBR v2 on geo-distributed cloud servers

February 18, 2020

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