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Category Archives for "Networking"

Worth Reading: Every Silver Lining has a Cloud

All the tools you built during those last two years work only because they have direct knowledge of the system components down to the metal, or at least as close to the metal as possible. Once you move a system into the cloud, your application is sharing resources with other, competing systems, and if you are taking advantage of elastic pricing, then your machines may not even be running until the cloud provider deems them necessary. —George V. Neville-Neil @ACM

Kernel of Truth episode 5 — HCI, agility and the physical network

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If you’ve been waiting for a tech-heavy deep dive, then you’re in luck. In this episode we’re getting REAL nerdy — so we decided to bring out the big guns and invite two of the industry’s biggest networking geeks to discuss hyper-converged infrastructure. Naturally, we got our fearless co-founder and CTO JR Rivers into the recording booth so he could share his wisdom (and crack a few jokes, as usual).

And who did we invite to go toe-to-toe with JR on networking knowledge? None other than the one and only Greg Ferro, co-founder of Packet Pushers! We couldn’t be more excited that Greg agreed to join us in the recording booth and share his industry insights.

So, what data center networking topic did we decide was meaty enough for these guys to chew on? Because Greg and JR are all about looking toward the future and analyzing what they see coming up on the horizon, this episode is dedicated to hyper-converged infrastructure (HCI). How is HCI changing the way we look at network architecture? We’ll discuss these topics Continue reading

PQ 152: An IETF Update On RIFT, BIER, SD-WAN And More

Today, an update on some compelling projects at IETF 102. Ours guest are Jeff Tantsura and Russ White.

We review the following projects to see what’s new and understand what problems they’re solving:

  • RIFT (Routing In Fat Trees)
  • BIER (Bit Indexed Explicit Replication)
  • PPR (Preferred Path Routing)
  • YANG data modeling

We also look at the state of SD-WAN, which is a bit of the Wild West, to look at standards and interoperability efforts underway.

Jeff is the Head of Technology Strategy at Nuage Networks. He’s also deeply involved with the IETF as the Chair of Routing Area Working Group, the Chair of Routing In Fat Trees, a Member of Internet Architecture Board, and a Member of IP Stack Evolution.

Jeff has recorded with us several times before, most recently on Priority Queue 126, where Greg chatted with Jeff about the future of data center fabrics. Jeff, welcome back to Packet Pushers.

Russ White is a network architect, author, and blogger. Rush also chairs the Interface to Routing System and the Babel routing protocol efforts at the IETF, and is a reviewer in the IETF’s Routing Area Directorate.

Show Links:

Jeff Tantsura IETF work – IETF

Russ White’s IETF work Continue reading

Growing the Cloudflare Apps Ecosystem

Growing the Cloudflare Apps Ecosystem

Starting today we are announcing the availability of two key pilot programs:

Why now? Over the course of past few months we've seen accelerating interest in Workers, and we frequently field the question on what we are doing to combine our growing ecosystem around Workers, and our unique deliverability capability, Cloudflare Apps. To meet this need, we have introduced two programs, Apps with Workers and Workers Service Providers. Let’s dig into the details:

First, we are announcing the upcoming availability of Cloudflare Apps, powered by embeddable Workers. This will allow any developer to build, deploy and in the near future package Workers to distribute to third parties, all using the Cloudflare Apps platform. It will be, in effect, the world's first serverless Apps platform.

Today, it's easy develop Workers using with our UI or API. The ability to App-ify Workers opens up a whole new promise to those who prefer to deal in clicks and not code. For our Apps developers, Apps with Workers allows for more complex Apps offerings running on Cloudflare, and for our customers the next generation in Apps. So, while we are actively putting the finishing touches on Continue reading

Become a VMware NSX Expert Today

If you’ve wanted to learn about VMware NSX, a L2-L7 networking and security virtualization platform entirely in software, and didn’t know where to start, this is the guide for you. Already an NSX user, and want to improve on your skills? This is also a great resource to becoming an NSXpert!

Reintroducing the VMware NSX Networking and Security Portfolio

VMware NSX is a network virtualization and security platform that offers a rich, full-stack of L2-L7 networking services such as routing, switching, load balancing, and firewalling to connect, protect, automate, and manage workloads across private, public and hybrid cloud environment as well as branch and cloud edge environments.

VMware NSX networking and securityPortfolio 2019

The VMware NSX portfolio consists of a complete set of networking and security offerings designed to address customer use-cases supporting workloads based on virtual machines (VMs), containers, and bare-metal.

Here are the core components of the NSX portfolio:

  • NSX Data Center is the flagship NSX platform designed to connect and protect workloads in and across data center environments.
  • NSX Cloud extends the networking and security capabilities of NSX to workloads running natively in public clouds such as AWS and Azure.
  • NSX Distributed IDS/IPS is a fully distributed software intrusion Continue reading

Las Marías of Azacualpa: Internet for Raising Women’s Voices

Azacualpa Yamaranguila, a village in the Intibuca region in Honduras, is celebrating. And not for nothing. Last Saturday was a historic day as they accessed the Internet for the very first time. For many of us, the Internet is taken for granted, but for the Lenca people it started like a dream 6 months ago when the Internet Society Honduras’ Chapter gave them the idea of connecting their village to the Internet. This idea became a reality thanks to the collective effort of the community and the support of Beyond the Net.

Las Marías

The party is for everyone but it focuses on them: Las Marías. With great curiosity, the women of the community came to the celebration early.

When I arrived after a 4-hour trip from Tegucigalpa, they were already there, dressed in colorful clothing. They were selling their products, taking care of their children, and anxiously awaiting the inauguration of the first community network of Azacualpa.

It was also the first anniversary of the radio ‘La Voz de las Mujeres’ (‘The Voice of the Women’) and María Santos, one of the heroes of the day and a leader of the community, was the first Continue reading

Computing should be based on light, not electricity, scientists say

Light-carrying, miniature wires are potentially more efficient for computing than other forms of interconnects, including copper and larger optical systems, say experts.However, there’s been a problem in getting such a nanowire system to work, the University of North Carolina at Chapel Hill, explains in an article published on Science Daily.“There hasn't been a controlled method for selectively sending light down along nanoscale wires,” says James Cahoon, a professor in the College of Arts and Sciences. “Optical technology has either used much larger structures or wasted a lot of light in the process.” Creating light uses power, defeating the object, for one thing.To read this article in full, please click here

Computing should be based on light, not electricity, scientists say

Light-carrying, miniature wires are potentially more efficient for computing than other forms of interconnects, including copper and larger optical systems, say experts.However, there’s been a problem in getting such a nanowire system to work, the University of North Carolina at Chapel Hill, explains in an article published on Science Daily.“There hasn't been a controlled method for selectively sending light down along nanoscale wires,” says James Cahoon, a professor in the College of Arts and Sciences. “Optical technology has either used much larger structures or wasted a lot of light in the process.” Creating light uses power, defeating the object, for one thing.To read this article in full, please click here

Cisco pays cool $2.3 billion for hot security company Duo

Cisco today laid out $2.35 billion in cash and stock for network identity, authentication security company Duo.According to Cisco, Duo helps protect organizations against cyber breaches through the company’s cloud-based software that verifies the identity of users and the health of their devices before granting access to applications with the idea of preventing breaches and account takeover.A few particulars of the deal include: Cisco currently provides on-premises network access control via its Identity Services Engine (ISE) product. Duo's software as a service-based (SaaS) model will be integrated with Cisco ISE to extend ISE to provide cloud-delivered application access control. By verifying user and device trust, Duo will add trusted identity awareness into Cisco's Secure Internet Gateway, Cloud Access Security Broker, Enterprise Mobility Management, and several other cloud-delivered products. Cisco's in-depth visibility of over 180 million managed devices will be augmented by Duo's broad visibility of mobile and unmanaged devices. Cisco said that Integration of its network, device and cloud security platforms with Duo Security’s zero-trust authentication and access products will let customers to quickly secure users to any application on any networked device. In fact, about 75% of Duo’s customers are up and running in less than Continue reading

Cisco pays cool $2.3 billion for hot security company Duo

Cisco today laid out $2.35 billion in cash and stock for network identity, authentication security company Duo.According to Cisco, Duo helps protect organizations against cyber breaches through the company’s cloud-based software that verifies the identity of users and the health of their devices before granting access to applications with the idea of preventing breaches and account takeover.A few particulars of the deal include: Cisco currently provides on-premises network access control via its Identity Services Engine (ISE) product. Duo's software as a service-based (SaaS) model will be integrated with Cisco ISE to extend ISE to provide cloud-delivered application access control. By verifying user and device trust, Duo will add trusted identity awareness into Cisco's Secure Internet Gateway, Cloud Access Security Broker, Enterprise Mobility Management, and several other cloud-delivered products. Cisco's in-depth visibility of over 180 million managed devices will be augmented by Duo's broad visibility of mobile and unmanaged devices. Cisco said that Integration of its network, device and cloud security platforms with Duo Security’s zero-trust authentication and access products will let customers to quickly secure users to any application on any networked device. In fact, about 75% of Duo’s customers are up and running in less than Continue reading

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