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Category Archives for "Networking"

Worth Reading: Time is not on your side

Many of the presenters, like Truman Boyes of Bloomberg and Peyton Maynard-Koran of EA, discussed the idea of building boxes from existing components instead of buying them from established networking vendors like Cisco and Arista. The argument does hold some valid ideas. If you can get your hardware from someone like EdgeCore or Accton and get your software from someone else like Pluribus Networks or Pica8 it looks like a slam dunk. You get 90% to 95% of a solution that you could get from Cisco with much less cost to you overall. —Networking Nerd

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Cumulus content roundup: September

The Cumulus content roundup is back! This month, we’ve journeyed to the far-reaches of the Internet to bring you the best articles, blog posts, and videos about network automation trends. Now, the latest news about containers, clouds and configurations is a click away. Wondering what the CNCF is up to? Or are you more interested in bringing connectivity and visibility to your network? Read on to satiate your curiosities and find the answers to your burning questions. Then, let us know what you think in the comments section below.

Cumulus’ current content

Introduction to Host Pack: Are you searching for software essentials that remove the difficulties of container networking while also bringing visibility and connectivity to the entire stack? Then Host Pack is the product for you! Watch this video to learn about what Host Pack can do for you.

What is FRRouting?: FRRouting (FRR) is the open source software that makes Host Pack’s connectivity so revolutionary. This page goes into deeper, more technical detail about how FRR was developed and how it is used in Cumulus Networks’ Host Pack. Read about FRR here.

NetDevOps: important idempotence: What exactly is idempotence, and what does it have to do with Continue reading

Worth Reading: Improving metrics in cyber resiliency

With the growth in cloud computing, businesses rely on the network to access information about operational assets being stored away from the local server. Decoupling information assets from other operational assets could result in poor operational resiliency if the cloud is compromised. Therefore, to keep the operational resiliency unaffected, it is essential to bolster information asset resiliency in the cloud. To study the resiliency of cloud computing, the CSA formed a research team consisting of members from both private and public sectors within the Incident Management and Forensics Working Group and the Cloud Cyber Incident Sharing Center. —The Cloud Security Alliance

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Network Longevity – Think Car, Not iPhone

One of the many takeaways I got from Future:Net last week was the desire for networks to do more. The presenters were talking about their hypothesized networks being able to make intelligent decisions based on intent and other factors. I say “hypothesized” because almost everyone admitted that we aren’t quite there. Yet. But the more I thought about it, the more I realized that perhaps the timeline for these mythical networks is a bit skewed in favor of refresh cycles that are shorter than we expect.

Software Eats The World

SDN has changed the way we look at things. Yes, it’s a lot of hype. Yes, it’s an overloaded term. But it’s also the promise of getting devices to do much more than we had ever dreamed. It’s about automation and programmability and, now, deriving intent from plain language. It’s everything we could ever want a simple box of ASICs to do for us and more.

But why are we asking so much? Why do we now believe that the network is capable of so much more than it was just five years ago? Is it because we’ve developed a revolutionary new method for making chips that are ten times Continue reading

Discussion with Maldivian Operator Dhiraagu (AS7642)

I discussed the BGP Router Reflector design, Settlement Free Peering , Transit Operator choice, Internet Gateways and the Route Reflector connections, MPLS deployment option at the Internet Edge and many other things with the Operator from Maldives. Operator name is Dhiraagu. Autonomous System Number is 7642.   Engineer from the ISP Core team, who is […]

The post Discussion with Maldivian Operator Dhiraagu (AS7642) appeared first on Cisco Network Design and Architecture | CCDE Bootcamp | orhanergun.net.

IDG Contributor Network: How intent-based networking is transforming an industry

The fundamental principles of intent-based networking have been present for years, but only recently has this phenomenon grow to its full size today, where it stands to upend modern industry and business practices. So what exactly is intent-based networking, and is it really so marvelous to warrant the recent renewal in interest and support it’s gained?A brief foray into intent-based networking shows that, while it’s a very complex technology, it’s rather easy to grasp a basic understanding of it. Furthermore, a look at what some of today’s top companies are doing with this tech, and some ruminations about what they plan to do in the future, shows just how significantly intent-based networking can reshape modern markets.To read this article in full or to leave a comment, please click here

IDG Contributor Network: How intent-based networking is transforming an industry

The fundamental principles of intent-based networking have been present for years, but only recently has this phenomenon grow to its full size today, where it stands to upend modern industry and business practices. So what exactly is intent-based networking, and is it really so marvelous to warrant the recent renewal in interest and support it’s gained?A brief foray into intent-based networking shows that, while it’s a very complex technology, it’s rather easy to grasp a basic understanding of it. Furthermore, a look at what some of today’s top companies are doing with this tech, and some ruminations about what they plan to do in the future, shows just how significantly intent-based networking can reshape modern markets.To read this article in full or to leave a comment, please click here

What is controllerless Wi-Fi and who needs it?

It’s no longer necessary for enterprises to install dedicated Wi-Fi controllers in their data centers because that function can be distributed among access points or moved to the cloud, but it’s not for everybody.While the arrangement is often referred to as controllerless, that is a misnomer; there is still a control plane, it’s just not located in a dedicated device.The traditional data-center deployment of a controller really isn’t a strict necessity for enterprise WLAN use any more, according to Farpoint Group principal Craig Mathias,+RELATED: 5 Wi-Fi analyzer and survey apps for Android; The future of Wi-Fi: The best is yet to come+To read this article in full or to leave a comment, please click here

OpenStack SDN – Building a Containerized OpenStack Lab

For quite a long time installation and deployment have been deemed as major barriers for OpenStack adoption. The classic “install everything manually” approach could only work in small production or lab environments and the ever increasing number of project under the “Big Tent” made service-by-service installation infeasible. This led to the rise of automated installers that over time evolved from a simple collection of scripts to container management systems.

Evolution of automated OpenStack installers

The first generation of automated installers were simple utilities that tied together a collection of Puppet/Chef/Ansible scripts. Some of these tools could do baremetal server provisioning through Cobbler or Ironic (Fuel, Compass) and some relied on server operating system to be pre-installed (Devstack, Packstack). In either case the packages were pulled from the Internet or local repository every time the installer ran.

The biggest problem with the above approach is the time it takes to re-deploy, upgrade or scale the existing environment. Even for relatively small environments it could be hours before all packages are downloaded, installed and configured. One of the ways to tackle this is to pre-build an operating system with all the necessary packages and only use Puppet/Chef/Ansible to change configuration files and Continue reading

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