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Internetwork Engineering

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Dennis Holmes

Dennis Holmes is the Director of Mobility and Infrastructure Solutions for Internetwork Engineering (IE) and has been involved with Wi-Fi for over 18 years. He enjoys speaking on Wireless LAN solutions, technology, and best practices at industry events.

Blog Feature

Networking | Mobility & WiFi

By: Dennis Holmes
June 13th, 2022

A little over a year ago, Cisco announced the sunsetting of AireOS controllers and the end of a dynasty in the Wi-Fi industry. Approximately ten years ago, Cisco acquired a young startup company named Meraki in an enormous, 1.2-billion-dollar purchase. As an Airespace Wi-Fi fan, the news was a bit intriguing. The one thing that had been clearly missing from the Cisco/Airespace acquisition of 2005 was the lack of a cloud-based management system coupled with state-of-the-art hardware and radios. The Meraki acquisition held the promise of closing that gap in Cisco/Airespace portfolio.  

Blog Feature

Partners | Mobility & WiFi

By: Dennis Holmes
February 4th, 2021

I'm feeling nostalgic as I write this blog. Like Rose on the movie Titanic explaining it had been 84 years since she went to Titanic and she could still smell the fresh paint. 

Blog Feature

Data Center | Data Protection | Networking | Mobility & WiFi

By: Dennis Holmes
January 23rd, 2020

Smart Cities have revolutionized communities and with their inception comes the demand for seamless Internet of Things (IoT) integrations. You need to choose IoT solutions that address commonly faced issues within your community.

Blog Feature

Partners | Mobility & WiFi

By: Dennis Holmes
August 15th, 2019

Last week in my lab, I had an issue arise with one of my older network testbeds. When I came into the lab in the morning, none of my access points were connected to my older Cisco 5508 controller. A little troubleshooting and I quickly discovered that there was a certificate issue on my access points and controllers. Here, I’ll share what the issue was, the fix, and what impact it will have on your business.

Blog Feature

Technology Solutions

By: Dennis Holmes
November 1st, 2017

At IE, our wireless practice engineers often are called on to troubleshoot a network that’s gone awry, for some unknown or unforeseen reason, resulting in a negative impact to the business. The WLAN has been run through multiple support calls and RF surveys to show that good RF signal exists and the RF cell is stable. Vendor support centers may have been contacted, but with little to no actual onsite visibility, the vendor online support engineer has no real way to identify the issue. Quite often of late, this has been the result of a change to the network that may’ve been intended to improve the behavior of one client’s device at the cost of older legacy devices on the network. One, or multiples of, new Institute of Electrical and Electronics Engineers (IEEE) standards have been engaged and legacy client devices are suffering. These standards are varietal configurations of 802.11r, k, v, and w. I will briefly describe what each of these IEEE roaming and protection standards is and how they could potentially cause issues with your WLAN client devices.

Blog Feature

Mobility & WiFi

By: Dennis Holmes
October 16th, 2017

By now, just about everyone has heard of the coming 5G standard for mobile devices like phones and tablets. Interoperability and the coexistence of 5G in the enterprise space with existing WiFi technology has been a serious concern for some who fear 5G LTE will mark the end of WiFi as it encroaches on unlicensed spectrum. I don’t see it that way. For over a decade I’ve believed that the true mobility sweet spot will be realized when we have complete interoperability between cellular-based devices and WiFi. Allowing enterprises to offer 5G throughout their network on licensed spaces, owned and operated by the carriers, allows them to easily transition latency and security sensitive applications on and off of their networks. The interoperability of 5G and WiFi is not only convenient but necessary to provide adequate data backhaul for the increasing bandwidth demands of data-hungry end-users.