Whatever you design , it should be usable first. Computer network design is not an exception.You are not designing a network to support one service only such as VPN or Internet.It should provide enough functionality for today and future needs. Your design should be usable today and the future ! It was so common to use… Read More »
The post Your design should be usable ! appeared first on Network Design and Architecture.
When quality and reliability issues dog UC deployments, most of the time the problem is with the underlying network. UC SDN can help resolve these issues so organizations get the most out of UC systems.
Packet Pushers took on an SD-WAN whitepaper sponsored by CloudGenix. There were two main ideas behind this whitepaper. (1) Describe a typical SD-WAN solution. (2) Discuss CloudGenix specifics. When done reading, you should know both what SD-WAN will do for you, as well as how to integrate CloudGenix into your existing WAN with a minimum of disruption. Download with no regwall from here: http://bit.ly/PPCGWP.
The post CloudGenix SD-WAN Whitepaper by Packet Pushers appeared first on Packet Pushers.
As some of you probably already know, the CCNA Security IINS exam topics have been refreshed from version 2.0 to version 3.0. The new exam is now called CCNA 210-260 “Implementing Cisco Network Security”. We will now take a look at the differences between the two exams and highlight the most important topic changes.
First thing, IINS 3.0 topics combine and adjust the current domains. Instead of covering nine domains (IINS 2.0), only seven domains are now included. This change was made to better reflect current job roles and job tasks typically performed by CCNA Security individuals. Note that although there are fewer domains, the exam remains the same length – it lasts for 90 minutes and contains 60-70 questions. This is because some new technologies were added and certain topic areas are now covered in more depth. The exam prerequisites did not change – you will not be able to obtain a valid CCNA Security Certificate until you already possess a valid CCENT or CCNA R&S, or any CCIE certificate.
In general, the new CCNA Security exam tests the candidate’s knowledge of secure network infrastructure, understanding core security concepts, managing secure access, VPN encryption, firewalls, Continue reading
Take our quick survey to enter for a chance to win one of two $200 Amazon gift cards.
Five webinars over the course of three months. Get ready, SDxCentral -- the NFV for Dummies webinar series is here.
Are there ideas in IT that must die for progress to be made?
Max Planck wryly observed that scientific progress is often less meritocracy and more Lord of the Flies:
A new scientific truth does not triumph by convincing its opponents and making them see the light, but rather because its opponents eventually die, and a new generation grows up that is familiar with it.
Playing off this insight is a thought provoking book collection of responses to a question posed on the Edge: This Idea Must Die: Scientific Theories That Are Blocking Progress. From the book blurb some of the ideas that should transition into the postmortem are: Jared Diamond explores the diverse ways that new ideas emerge; Nassim Nicholas Taleb takes down the standard deviation; Richard Thaler and novelist Ian McEwan reveal the usefulness of "bad" ideas; Steven Pinker dismantles the working theory of human behavior.
Let’s get edgy: Are there ideas that should die in IT?
What ideas do you think should pass into the great version control system called history? What ideas if garbage collected would allow us to transmigrate into a bright shiny new future? Be as deep and bizarre as you want. This is Continue reading
Meet us at OpenStack Summit Tokyo and learn how to build fast, scalable, secure OpenStack networking.
Mark McClain (CTO, Akanda Inc) and I will be presenting at the OpenStack Summit in Tokyo about the next-generation physical and virtual network that DreamHost is deploying for their DreamCompute cloud.
The design marries Cumulus Networks Dynamic LNV (Lightweight Network Virtualization) with Akanda’s Astara L3-7 services, all being orchestrated by the OpenStack Neutron.
We’ll be expanding on the talk we gave at the last OpenStack summit in Vancouver. That talk was about the design and why we should deploy it. In this one, we will be discussing in depth about our experiences deploying it in production.
If you can’t make it to Tokyo, don’t worry, the talk will be recorded.
Watch out for this space for updates on the talk!
The post OpenStack Summit Tokyo: Learn Open Networking with OpenStack appeared first on Cumulus Networks Blog.
Meet us at OpenStack Summit Tokyo and learn how to build fast, scalable, secure OpenStack networking.
Mark McClain (CTO, Akanda Inc) and I will be presenting at the OpenStack Summit in Tokyo about the next-generation physical and virtual network that DreamHost is deploying for their DreamCompute cloud.
The design marries Cumulus Networks Dynamic LNV (Lightweight Network Virtualization) with Akanda’s Astara L3-7 services, all being orchestrated by the OpenStack Neutron.
We’ll be expanding on the talk we gave at the last OpenStack summit in Vancouver. That talk was about the design and why we should deploy it. In this one, we will be discussing in depth about our experiences deploying it in production.
If you can’t make it to Tokyo, don’t worry, the talk will be recorded.
Watch out for this space for updates on the talk!
The post OpenStack Summit Tokyo: Learn Open Networking with OpenStack appeared first on Cumulus Networks Blog.
The post Worth Reading: Diffie-Hellman Case Study appeared first on 'net work.
For many years, when I worked out in the center of the triangle of runways and taxiways, I would get up at around 4, swim a mile in the indoor poor (36 laps), shower, grab breakfast, run by base weather just to check the bigger pieces of equipment out (mostly the RADAR system), and then I’d head out to the shop. We could mostly only get downtime on the airfield equipment (particularly the VOR, TACAN, and glideslopes) in the early morning hours — unless, of course, there was a war on. Then we couldn’t get downtime at all. By 2:30 I was done with my work day, and I headed home to get whatever else done.
When I left the USAF, after being trapped in some 9–5 jobs, I joined the cisco TAC. Our shift started at 8 or 8:30, when we took over the 1–800 number from Brussels, and our shift lasted until around 2 in the afternoon (it varied over time, as the caseloads and TACs were moved around). Freed from 9–5, I started getting to work at around 5:30 again. I could spend the first two or three hours following up on cases (did you know that Continue reading
I’m sure some of you are scratching your head right about now wondering why I would join an Internet security and optimization company. But, Ben, this is not even close to your passion: operating systems.
I had the same reaction when I first saw the CloudFlare website. I wasn’t even sure it made sense for me to go interview here. After taking a closer look, however, I realized that it would be the perfect new home for me. Take a look at this page for a brief introduction to what CloudFlare does and how we do it.
If you know me, you know that I'm a sucker for distributed systems. I fall for a hard computer science problem every time. So, it shouldn’t be a surprise to you that CloudFlare’s John Graham-Cumming, had me at “hello” when he nonchalantly described one of the company's projects: a globally distributed key value store with sub-second consistency guarantees! Ho hum! No big deal.
As the interview process progressed, the team graciously spent several hours walking me through the architecture as well as future plans and product roadmaps. These discussions and email exchanges were frequently interrupted by my cries of protest: Continue reading