How to assess your company’s network architecture

Mark Giles, Wireless Design Engineer, PowerNet Global

Network reliability is vital for any business. With so many systems and departments being dependent on your company’s network, it’s vital that your systems are up 100 percent of the time.

As most of us already know, network outages can potentially cost a company thousands and, in some cases, millions of dollars. One way to prevent outages is by doing a proper network assessment and finding out where your network’s weaknesses are.

A company’s network architecture includes hardware, software, connectivity, communication protocols and the mode of transmission, such as wired or wireless. You need to assess your network architecture routinely to ensure that everything is current and in line with your ever-changing business model, says Mark Giles, wireless design engineer at PowerNet Global. If not, you’ll want to begin integrating changes to ensure your network is running efficiently. Conducting an assessment also allows you to see if your company’s security has been compromised, allowing you to fix any problems and prevent these breaches from happening in the future, he says.

“When you go through an assessment, you end up with good documentation and can find where your weak spots are,” says Giles. “A lot of companies have single points of failure, meaning there’s no redundancy if a portion of their network fails. A network assessment can help identify those single points of failure so that a plan can be put into place to fix these issues.”

Smart Business spoke with Giles about what you need to understand about a network architecture assessment and how to implement any changes.

What is involved in a network architecture assessment?

It starts with a site survey done by a network engineer or network consultant who will look at existing drawings and documentation of how the network is set up. Nine times out of 10, companies don’t have documentation or their documentation is outdated. This means the first step in the assessment will be to map out how the network is currently run.

Next, your network engineer or consultant will look at the current hardware and bandwidth utilization to see if your circuits are overloaded or your hardware is maxed out. Then they’ll review your routing to see if that’s being optimized and how your configuration is set up. This will help determine whether you need to upgrade or just optimize how traffic is flowing and configure your equipment accordingly.

Very often, it’s less likely that you need new hardware or circuits, and more likely that your current equipment needs to be configured more efficiently. This is where many companies fail to do a proper network assessment. They will pay top dollar for hardware but go cheap on the person configuring and maintaining the hardware. You could have the best hardware possible, but if the person configuring it has little to no experience, it will end up costing you more money in the long run.

What are some key items business leaders need to understand about their network architecture and implementing a plan?

A lot of it comes down to what your benefits will be and the costs associated with them to determine if it’s going to be worthwhile. If you’re going to be upgrading a piece of equipment, you need to understand why you are upgrading it and if the cost outweighs the benefit.

You’re also looking for service-impacting changes during the implementation portion while ensuring everything is designed well and that your implementation plan is solid. You should ask whether the network changes are going to be service or customer impacting. That’s the big one people want to know — who will be affected? Is there going to be an outage when you’re implementing or upgrading? How long is that outage going to be?

Who should be involved in the network architecture assessment and what are the costs?

Your network engineer or consultant should be the one doing the assessment and it should be conducted any time you’re coming into a new business environment or making changes. Then every six months to a year, depending on how rapidly your network is changing, you’ll want to go through it again. Check everything within your network and make sure the drawings and documentation are current. You’d be surprised how quickly things can change and become outdated.

The cost of an assessment depends on the size of your network and the accuracy of your documentation. It also depends on what you are looking to do. If you need new equipment, it might be more expensive than updating drawings. If you hire a consultant to run the assessment, the cost will typically range anywhere from $125 to $200 an hour.

How often should you implement changes to your network architecture and how should this be accomplished?

You should never stop making changes to your network; you should always try to improve it. According to CISCO’s model, you need to prepare your network, develop a plan to assess your company’s readiness to support any changes and create a detailed design to address any technical and business requirements. Then, implement any new technology, operate and maintain the most up-to-date network systems on a day-to-day basis, and optimize your network by making ongoing improvements to ensure that you have the most efficient network running.

Once you find you’re at the optimization stage, go back to step one. You need to go through this process continuously to make sure your network is up to date and running efficiently.

Mark Giles is the wireless design engineer with PowerNet Global. Reach him at (866) 764-7329.

Insights Technology is brought to you by PowerNet Global

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