Category: Veriflow

Feed: Blog – Veriflow. Author: Benjamin Mourad; Networks today are not neat and simple, with clear hierarchies. Users, networks, data, and applications are becoming more distributed; security boundaries are more amorphous; and changes occur more quickly over time. In addition, data today is exchanged and shared with multiple partners and with Internet of Things (IoT)-enabled devices, which are continuing to grow in popularity. IoT creates a greater need for IPv6, which can improve security but also adds complexity, given the large address spaces it requires. Networks today are also multi-vendor, have grown organically over time, and traditionally are poorly documented ... Read More

Feed: Blog – Veriflow. Author: Brighten Godfrey; Ransomware is top of mind again with the rapid spread of the WannaCry malware, which has spread across the Internet encrypting users’ files and demanding $300 in Bitcoin before decrypting them. Even after a lucky fix slowed it down, the infections continue and new variants can be expected. This is a time to reflect: what could enterprises who critically depend on their networks do to protect themselves from such digital pandemics? How can we adopt a defense in depth approach? First, let’s take a step back and ask, how does WannaCry spread? Take an ... Read More

Feed: Blog – Veriflow. Author: Firat Kiyak, Senior Software Engineer; In today’s networking world, a wide variety of technologies at different layers are applied to solve problems: high availability, load balancing, address translation, access control, packet forwarding and traffic engineering to name a few. Due to this large problem and solution space, it does not take much time to realize that every network is truly unique. Computer networks are heterogeneous and complex, and existing network administration and operation tools are either too generic to the point it merely becomes useful for everyone or is too specific to the point it ... Read More

Feed: Blog – Veriflow. Author: James F. Brear, President & CEO; Helping network operators be agile while eliminating outages and vulnerabilities Last week we were named to Gartner’s Cool Vendor report for Enterprise Networking. I’d like to think we are cool because we have a team made up of the top computer scientists and engineers from around the globe. But the reason we are cool, why we get out of bed every day, and why we think Gartner named Veriflow to their “Cool Vendor” list is because we are helping the networking industry evolve in the design and automation of ... Read More

Feed: Blog – Veriflow. Author: James F. Brear, President & CEO; Network design has been a one-sided affair. As engineers and network operators/architects we come up with an idea based on need, and we sit down to create the ideal network. But then something happens, as we go to implement the network we have a breakdown in communication. We have no way to ask the network if it is going to be able to out carry our design. This failure to communicate is causing all kinds of issues, whose effects usually show themselves as deteriorations in performance, network outages, and ... Read More

Feed: Blog – Veriflow. Author: Milind Kulkarni; Can we prevent network outages, before they happen? Major AWS Outage: The recent AWS outage was so big and lasted so long that it affected thousands of Amazon customers that depend on AWS infrastructure. Some even tweeted that “half of the Internet was down due to the outage.” Amazon deserves kudos for being transparent about this incident (and many prior incidents) by releasing detailed analysis of what caused the outage. Amazon described that the outage was caused by human error, when an incorrect command was entered that accidentally took more servers offline than ... Read More

Feed: Blog – Veriflow. Author: James F. Brear, President & CEO; One of the highlights of leading a startup is working with companies who also want to drive innovation and pave the way into the future of networking. Veriflow is pleased to welcome Pandora, one of those forward-oriented companies, as a customer of Veriflow’s CloudPredict. CloudPredict is an industry first in bringing formal verification and intent-based networking into the cloud. CloudPredict from Veriflow overcomes the lack of visibility and awareness into network behavior that limits confidence in working within multi-cloud environments. It exposes the infrastructure of the cloud while getting ... Read More

Feed: Blog – Veriflow. Author: James F. Brear, President & CEO; Why Intent?Why focus on intent? Because you already do. Intent is the inspiration behind innovation; it is the why that drives everything we do. This is the genesis behind intent-based networking: to align the entire system’s behavior to the original motivation and goal of the design, to improve operational efficiency, and to achieve excellence within the network. Intent-based networking spurs evolution from a network that needs constant operational attention with manual human intervention at every update and change, to one that intuitively knows what needs to be done and ... Read More

Feed: Blog – Veriflow. Author: James F. Brear, President & CEO; Organizations are using continuous network verification to move from reactive to proactive operations The network is complex. Anyone operating in today’s distributed multi-vendor network, full of virtual overlays, containers, SDN, and cloud migrations, knows this. Under the weight of all this complexity, it is easy to wonder if excellence is even possible. And what exactly does excellence mean in this context? How do we achieve this lofty goal? As a business executive and leader, I see excellence as the ability to bring out the best in our team in ... Read More

Feed: Blog – Veriflow. Author: Brighten Godfrey; Organizations are using continuous network verification to move from reactive to proactive operations In a previous post I discussed network verification, a new area of technology that applies what is known as formal verification – mathematical analysis of a complex system to determine rigorously if it meets the end-to-end goal – to network infrastructure. But what is network verification good for and how is it different from today’s common practice? Nearly every organization monitors its network, typically by sampling ongoing flows, events, or logs. Isn’t that enough to catch problems as the organization ... Read More