BBR Evaluation at a Large CDN
Bottleneck Bandwidth and Round-trip propagation time (BBR) is a TCP congestion control algorithm that has gained significant market attention due to its ability to deliver higher throughput as reported by many content providers. In this post, we evaluate BBR (version 1) in the context of Verizon Media’s content delivery network (CDN) workloads, which delivers significant volumes (multiple Tbps) of software updates and streaming video, and quantify the benefits and impact on the traffic. We hope that such an evaluation at a large CDN will help other content providers to choose the right congestion control protocol for their traffic.
Continue ReadingMeasuring Video QoE from the Server Side - Estimate Rebuffering
Video Quality of Experience and Rebuffers
In the early days of video streaming, viewers were willing to endure a frustrating playback experience to gain access to exclusive content. As the number of content providers sharing their content among multiple distributors has grown, Quality of Experience (QoE) has become vital to viewer retention.
Continue ReadingHTTP/2 Denial of Service Update
Verizon Media makes every effort to ensure that your web services remain 100% available. As such, we wanted to inform you that the recent vulnerabilities associated with HTTP/2 on our network have been patched.
Continue ReadingBringing live 4K streaming sporting events to life at scale
Today, the vast majority of live and streaming content is either 720p or 1080p. Despite the widespread availability of affordable 4K screens, broadcasters are still struggling with the complex challenges of producing and distributing 4K on an infrastructure designed to handle much lower bitrate HD streams.
Continue ReadingHow to get personal with millions by scaling manifest manipulation
Personalized viewing experiences at a 1:1 level are transforming the TV experience. Instead of one-size-fits-all, viewers get targeted and highly relevant advertising, tailored content, recommendations for new programs, and precise DRM/blackout management, all based on your viewers’ device type, location, history, demographics, and other data.
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