UK Carriers Step Up 5G Rollout Plans, Seek Better Licensing Conditions
The countries four large carriers are reported to have come up with a plan that might help them...
Copyright 2019 SDxCentral, LLC; For non-commercial use
Microsoft Inks Wide-Ranging Partnership With SK Telecom on 5G, IoT
Partnerships between large tech companies and telecom operators are growing as 5G efforts gain...
Copyright 2019 SDxCentral, LLC; For non-commercial use
Tech Bytes: SnapRoute’s NOS Targets The Intersection Of NetOps And DevOps (Sponsored)
Today we welcome sponsor SnapRoute for a Tech Bytes conversation. SnapRoute makes CN-NOS, a network OS that runs on whitebox hardware. We discuss the NOS's containerized design that lets you update, test, and replace components; its use of Kubernetes to tie into automation pipelines; and customer use cases.
The post Tech Bytes: SnapRoute’s NOS Targets The Intersection Of NetOps And DevOps (Sponsored) appeared first on Packet Pushers.
Gall’s Law and the Network
In Systemantics: How Systems Really Work and How They Fail, John Gall says:
A complex system that works is invariably found to have evolved from a simple system that worked. A complex system designed from scratch never works and cannot be patched up to make it work. You have to start over with a working simple system.
In the software development world, this is called Gall’s Law (even though Gall himself never calls it a law) and is applied to organizations and software systems. How does this apply to network design and engineering? The best place to begin in answering this question is to understand what, precisely, Gall is arguing for; there is more here than what is visible on the surface.
What does a simple system mean? It is, first of all, an argument for underspecification. This runs counter to the way we instinctively want to design systems. We want to begin by discovering all the requirements (problems to be solved and constraints), and then move into an orderly discussion of all the possible solutions and sets of solutions, and then into an orderly discussion of an overall architecture, then into a nice UML chart showing all the interaction Continue reading
Mellanox Infuses Ethernet Switches With Network Telemetry Tech
The monitoring technology, which Mellanox deemed What Just Happened, helps enterprises identify...
Copyright 2019 SDxCentral, LLC; For non-commercial use
Install the Antidote (NRE Labs) network emulator on a Linux system
Antidote is a network emulator combined with a presentation framework designed to create and deliver networking technology training. Its user interface operates in a web browser, including the terminals that students use to run commands on emulated network devices and servers.
Antidote is the engine that runs the Network Reliability Labs web site. Antidote is an open-source project, released under the Apache license. A standalone version of Antidote may be installed and run on your personal computer using the selfmedicate script. In this post, I will install Antidote on my Linux laptop and make a few changes that improve Antidote performance on my Linux system.
Antidote documentation
The Antidote documentation is being expanded regularly but, at the time I am writing this, the most helpful information is in the NRE Labs blog and in the videos produced by the developers. Most of these are accessible from the NRE Labs Community Resources page.
Also, Antidote is in active development and it is changing quickly as the developers create new features and content. Keep that in mind when following this blog post. Some things may already have changed about the way Antidote installs or operates.
Install prerequisite software
Antidote requires that you Continue reading
A Simple Virtual Network based on proxy ARP and Policy Based Routing
Introduction Choosing a Virtual networking to connect VMs or Containers across Hosts is always a complicated decision. Most of us would have found the virtual networking on a single VM/Container Host to be very simple, easy to implement and debug. Just plug the VM/Container to a bridge and your are done. For access from the … Continue reading A Simple Virtual Network based on proxy ARP and Policy Based RoutingNetwork Break 234: Windows Adds A Linux Kernel; Cisco Announces An SD-WAN Colo Option
Today's Network Break explores why Microsoft is adding a Linux kernel to Windows, examines a new SD-WAN colo option from Cisco, discusses a new offering from VMware and Dell EMC that lets you get infrastructure on premises but pay for it like the cloud, plus more tech news and a couple of follow-ups.
The post Network Break 234: Windows Adds A Linux Kernel; Cisco Announces An SD-WAN Colo Option appeared first on Packet Pushers.
The Week in Internet News: Broadband Project to Nowhere
Dead end: ProPublica has a story about Kentucky’s $1.5 billion broadband expansion program, which the story calls an information highway to nowhere. The program is behind schedule and over budget, with the state’s IT chief directing money to other projects and partnering with commercial ISPs.
Broadband billions: Meanwhile, the U.S. Department of Agriculture says that bringing broadband to unserved areas of the country would generate $47 billion of new economic activity a year, according to a story at Talkbusiness.net. Broadband in rural areas would enable precision agriculture technologies, which allows high-tech crop management based on sensors and other connected data sources.
I can’t Google: Finally, our broadband access trifecta of stories concludes with a Cronkite News story about the lack of access in many U.S. tribal areas. “Just Google it” has become a bit of a joke among the Hopi tribe in Arizona because many areas don’t have Internet access.
The luxury of privacy: Consumer privacy online can’t be a luxury good that only the rich have access to, Google CEO Sundar Pichai said recently in an opinion piece at the New York Times. Speaking at a conference, Pichai also spoke in favor of privacy legislation Continue reading
Argo and the Cloudflare Global Private Backbone
Welcome to Speed Week! Each day this week, we’re going to talk about something Cloudflare is doing to make the Internet meaningfully faster for everyone.
Cloudflare has built a massive network of data centers in 180 cities in 75 countries. One way to think of Cloudflare is a global system to transport bits securely, quickly, and reliably from any point A to any other point B on the planet.
To make that a reality, we built Argo. Argo uses real-time global network information to route around brownouts, cable cuts, packet loss, and other problems on the Internet. Argo makes the network that Cloudflare relies on—the Internet—faster, more reliable, and more secure on every hop around the world.
We launched Argo two years ago, and it now carries over 22% of Cloudflare’s traffic. On an average day, Argo cuts the amount of time Internet users spend waiting for content by 112 years!
As Cloudflare and our traffic volumes have grown, it now makes sense to build our own private backbone to add further security, reliability, and speed to key connections between Cloudflare locations.
Today, we’re introducing the Cloudflare Global Private Backbone. It’s been in operation for a while now and links Continue reading
Automating Brownfield Environments (Using an 802.1x Example)
This is a guest blog post by Albert Siersema, senior network and cloud engineer at Mediacaster.nl. He’s always busy broadening his horizons and helping his customers in (re)designing and automating their infrastructure deployment and management.
This is the second post in a series focused primarily on brownfield automation principles using 802.1x deployments as an example (you might want to read part 1 first).
Before diving into the specifics of the next 802.1x automation phase, let’s take a step back and think about why we’re going through this effort. Automation is a wonderful tool, but it’s not a goal… and neither is 802.1x a goal - it’s just another tool that can help us realize business benefits like:
Read more ...Welcome to Speed Week!
Every year, we celebrate Cloudflare’s birthday in September when we announce the products we’re releasing to help make the Internet better for everyone. We’re always building new and innovative products throughout the year, and having to pick five announcements for just one week of the year is always challenging. Last year we brought back Crypto Week where we shared new cryptography technologies we’re supporting and helping advance to help build a more secure Internet.
Today I’m thrilled to announce we are launching our first-ever Speed Week and we want to showcase some of the things that we’re obsessed with to make the Internet faster for everyone.
How much faster is faster?
When we built the software stack that runs our network, we knew that both security and speed are important to our customers, and they should never have to compromise one for the other. All of the products we’re announcing this week will help our customers have a better experience on the Internet with as much as a 50% improvement in page load times for websites, getting the most out of HTTP/2’s features (while only lifting a finger to click the button that enables them), finding the optimal route across Continue reading
Weekly Top Posts: 2019-05-12
- Kontainer Korner: Red Hat Boosts Quay Support
- Cybera Injects Cloud Management Into Its SD-WAN Platform
- Canonical Sharpens Focus on Red Hat, VMware; IPO Plans Remain
- SDxCentral Weekly Wrap: Dell EMC, Big Switch Take On Cisco With Open Networking Deal
- 5G Security Draws a Global Crowd, Results in Draft Proposals
Worth Reading: Nothing Fails Like Success
I hope I'm still allowed to quote a paragraph from someone else's article (thank you, EU, you did a great job). Here's what Jeffrey Zeldman wrote about startup business models:
A family buys a house they can’t afford. They can’t make their monthly mortgage payments, so they borrow money from the Mob. Now they’re in debt to the bank and the Mob, live in fear of losing their home, and must do whatever their creditors tell them to do.
Read the article and think about how it applies to unicorn-based networking technologies ;)