Finding Your Network’s Weakest Link

High availability is the nirvana of network engineers. When everything is humming, monitoring screens are green, and no notifications are in their inbox, network managers can spend time dreaming about how big their Christmas bonuses might be this year. But an unforeseen problem can interrupt their dreams and pop their bubbles at any given moment. […]

Software Defined Networking: The Speed of Software

Imagine that you are a data packet. You have information to deliver, and you’re anxious to get started. Here you are at your source network device, and you look out on the vast network of switches, routers, and other machines. But where do you go? You look down and see that you’ve been given a […]

Unchanging Internet Concepts

Internet technology continues to change at a rapid pace, but the fundamentals are the same. Most networks are still using TCP/IP. Networks are designed and analyzed using protocol stacks. And data packet switching is still the lifeblood of the network. In this post, we take a look at some fundamental concepts in networking that the […]

What Is Load Balancing — And Do I Need It?

Unless your job encompasses application availability or delivery, you may not be aware of what load balancing is, what it does, or whether it is even a necessary component. As to the last part of that statement, the answer is simple:  It is absolutely necessary. In today’s demanding online world, load balancing helps to ensure […]

What is an Application Delivery Network?

Today’s networks are focused on results. It’s not enough to have active connections with no errors. Customers expect that IT management teams do their best to deliver the applications that are essential to the success of the enterprise. The goal is complete service assurance. The environment in which these efforts at faultless application delivery take […]

Hardware Application Delivery Controllers are Dead

There’s a big migration going on – people are moving away from hardware. Oh, hardware has its place. Some companies still like something they can touch, installing and upgrading and surveilling and maintaining it throughout their local data center. But for many managers, moving their IT workloads to a virtualized cloud environment seems to be […]

Network Failover Can Save Your Business

Don’t put all your eggs in one basket, they say. You should always have a plan B. Companies spend millions on their data connections, but even the best of them can fail. And what happens when you don’t have adequate backup systems in place? Well, take a look at our survey of outages in 2018 […]

What is an Application Delivery Controller?

Just when you think you have a good handle on the key technologies on the market, they come up with something new. If you’ve been told that you need to look at putting in an application delivery controller (ADC), read on. Glorified Load Balancer? To get to the heart of the matter, we need to […]

Internet Load Balancing and Failover for Multiple ISP Links

Controlling traffic is a key facet of internet management. Sometimes primary connections will go down. Or too much traffic may cause congested links or overwhelmed devices to become unusable. We wrote about the implementation of load balancing in the cloud in a 2017 blog post. When people think of load balancing, they usually think about traffic that […]

HTTP/2 Makes the Internet Faster

If you have ever worked on a farm or have done construction, you probably got used to carrying things. And you might have heard your supervisor say at some point, “Get it all in one trip if you can.” That’s the idea behind HTTP/2. Earlier versions of HTTP required multiple TCP streams to transfer the […]