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NGINX structural enhancements for HTTP/2 performance

NGINX structural enhancements for HTTP/2 performance
NGINX structural enhancements for HTTP/2 performance

Introduction

My team: the Cloudflare PROTOCOLS team is responsible for termination of HTTP traffic at the edge of the Cloudflare network. We deal with features related to: TCP, QUIC, TLS and Secure Certificate management, HTTP/1 and HTTP/2. Over Q1, we were responsible for implementing the Enhanced HTTP/2 Prioritization product that Cloudflare announced during Speed Week.

This is a very exciting project to be part of, and doubly exciting to see the results of, but during the course of the project, we had a number of interesting realisations about NGINX: the HTTP oriented server onto which Cloudflare currently deploys its software infrastructure. We quickly became certain that our Enhanced HTTP/2 Prioritization project could not achieve even moderate success if the internal workings of NGINX were not changed.

Due to these realisations we embarked upon a number of significant changes to the internal structure of NGINX in parallel to the work on the core prioritization product. This blog post describes the motivation behind the structural changes, how we approached them, and what impact they had. We also identify additional changes that we plan to add to our roadmap, which we hope will improve performance further.

Background

Enhanced HTTP/2 Prioritization aims to do Continue reading

meeting madness, ONUG, and software defined

Jordan, Eyvonne, and I sit down for a conversation that begins with meetings, and ends with talking about software defined everything (including meetings??).

Outro Music:
Danger Storm Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License
http://creativecommons.org/licenses/by/3.0/

French IT giant Atos enters the edge-computing business

French IT giant Atos is the latest to jump into the edge computing business with a small device called BullSequana Edge. Unlike devices from its competitors that are the size of a shipping container, including those from Vapor IO and Schneider Electronics, Atos' edge device can sit in a closet.Atos says the device uses artificial intelligence (AI) applications to offer fast response times that are needed in areas such as manufacturing 4.0, autonomous vehicles, healthcare and retail/airport security – where data needs to be processed and analyzed at the edge in real time.[ Also see: What is edge computing? and How edge networking and IoT will reshape data centers.] The BullSequana Edge can be purchased as standalone infrastructure or bundled with Atos’ software edge software, and that software is pretty impressive. Atos says the BullSequana Edge supports three main categories of use cases:To read this article in full, please click here

Atos is the latest to enter the edge computing business

French IT giant Atos is the latest to jump into the edge computing business with a small device called BullSequana Edge. Unlike devices from its competitors that are the size of a shipping container, including those from Vapor IO and Schneider Electronics, Atos' edge device can sit in a closet.Atos says the device uses artificial intelligence (AI) applications to offer fast response times that are needed in areas such as manufacturing 4.0, autonomous vehicles, healthcare and retail/airport security – where data needs to be processed and analyzed at the edge in real time.[ Also see: What is edge computing? and How edge networking and IoT will reshape data centers.] The BullSequana Edge can be purchased as standalone infrastructure or bundled with Atos’ software edge software, and that software is pretty impressive. Atos says the BullSequana Edge supports three main categories of use cases:To read this article in full, please click here

French IT giant Atos enters the edge-computing business

French IT giant Atos is the latest to jump into the edge computing business with a small device called BullSequana Edge. Unlike devices from its competitors that are the size of a shipping container, including those from Vapor IO and Schneider Electronics, Atos' edge device can sit in a closet.Atos says the device uses artificial intelligence (AI) applications to offer fast response times that are needed in areas such as manufacturing 4.0, autonomous vehicles, healthcare and retail/airport security – where data needs to be processed and analyzed at the edge in real time.[ Also see: What is edge computing? and How edge networking and IoT will reshape data centers.] The BullSequana Edge can be purchased as standalone infrastructure or bundled with Atos’ software edge software, and that software is pretty impressive. Atos says the BullSequana Edge supports three main categories of use cases:To read this article in full, please click here

History Of The Internet From An Asian Perspective – Kilnam Chon

Kilnam Chon is credited as being largely responsible for bringing the Internet to Asia. In this episode we talk with Professor Chon about his experiences in the early days of the Internet and about his role in bringing the second country in the world, South Korea, onto the global network.
Kilnam Chon
Guest
Russ White
Host
Donald Sharp
Host

Outro Music:
Danger Storm Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License
http://creativecommons.org/licenses/by/3.0/

The post History Of The Internet From An Asian Perspective – Kilnam Chon appeared first on Network Collective.

The Traffic Jam Whopper project may be the coolest/dumbest IoT idea ever

People love to eat in their cars. That’s why we invented the drive-in and the drive-thru.But despite a fast-food outlet on the corner of every major intersection, it turns out we were only scratching the surface of this idea. Burger King is taking this concept to the next logical step with its new IoT-powered Traffic Jam Whopper project.I have to admit, when I first heard about this, I thought it was a joke, but apparently the Traffic Jam Whopper project is totally real and has already passed a month-long test in Mexico City. While the company hasn’t specified a timeline, it plans to roll out the Traffic Jam Whopper project in Los Angeles (where else?) and other traffic-plagued megacities such as São Paulo and Shanghai.To read this article in full, please click here

Improving Routing Security: Microsoft Joins MANRS

In November, a routing incident in Nigeria caused Internet traffic to be rerouted through Russia and China. It lasted for just over an hour, but during that time, it significantly affected some cloud and search services globally, including Spotify and Google’s Search. It was one of more than 10,000 incidents, such as route hijacking and leaks, that occurred in 2018. Past events have led to large-scale Denial of Service attacks, stolen data, and financial losses.

The global routing system is the backbone of the Internet. It determines how everything – from email messages to videoconferences to website content – moves from network to network. The November event, caused by a configuration mistake with a small ISP in Nigeria, shows that routing incidents can have significant global effects – impacting the security of the Internet itself.

A number of network operators around the world – including Oracle, GÉANT, and Comcast – have joined MANRS to address these types of routing threats. The Mutually Agreed Norms for Routing Security (MANRS) initiative, supported by the Internet Society, does this through technical and collaborative action across the Internet. Those who join agree to take meaningful action to keep the Internet safe for everyone – Continue reading

Don’t Base Your Design on Vendor Marketing

Remember how Arista promoted VXLAN coupled with deep buffer switches as the perfect DCI solution a few years ago? Someone took Arista’s marketing too literally, ran with the idea and combined VXLAN-based DCI with traditional MLAG+STP data center fabric.

While I love that they wrote a blog post documenting their experience (if only more people would do that), it doesn’t change the fact that the design contains the worst of both worlds.

Here are just a few things that went wrong:

Read more ...

BrandPost: Mobility and SD-WAN, Part 2: Is SD-WAN the Super-Glue That Will Bring 5G and all the Edges Together?

This is the second blog of a two-part blog series that explores SD-WAN and the future of networking in the 5G era. Part 1 “SD-WAN with 4G LTE is a Reality” can be found here.5G, a game-changer for an ultra-high-speed, hyperconnected world Telecommunications providers are racing to roll out the fifth generation of mobile wireless technology to meet today’s explosive bandwidth and network connectivity demands. 5G is poised to revolutionize several industries by bringing significantly faster connections, shorter delays and increased connectivity for users. It will aid the expansion of “internet of things” (IoT), creating a virtual network of ultra-high-speed connections across multiple devices. To read this article in full, please click here

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