The Dallas / Fort Worth Cisco Users Group


The DFWCUG is an organization in Dallas TX that works with and helps organize new Cisco Users Groups in the US.

The Dallas / Fort Worth Cisco Users Group

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The Dallas / Fort Worth Cisco Users Group

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The Dallas / Fort Worth Cisco Users Group is an independent users group which meets on the first Wednesday of each month for the open exchange of technical information regarding the networking industry and Cisco products for the benefit of Cisco users.
Our meetings are free to attend - all we ask is that you sign up via our membership / meeting announcements mailing list.

We also have a pizza buffet starting at 6:00 pm (no charge) with the main meeting starting at 6:30 pm.

Our Next Meeting - Wednesday April 4, 2018

Using Python + Netmiko to Enable Network Automation

Netmiko is a multi-vendor Python library that simplifies network automation. This talk will discuss how to use Netmiko to enable network automation. Various Netmiko use cases will be discussed including connecting to devices, retrieving information, making configuration changes, and troubleshooting. The talk will also discuss using Netmiko-tools, a set of command-line tools based upon Netmiko.


Kirk Byers, Founder - Twin Bridges Technology

Kirk Byers is the founder of Twin Bridges Technology–a technology business in San Francisco. He teaches Python and Ansible courses for Network Engineers and writes about network automation at He is the creator of the Netmiko, Python Library and is a core maintainer on the NAPALM project. He is a long-time network engineer (CCIE #6243 emeritus), has extensive experience with *nix system administration, and is a Python programmer.

He is interested in programming and networking and how to improve network engineering practices through automation.

Kirk Byers

Sponsor for April 4, 2018

DFWCUG welcomes
Glow Networks as our monthly meeting sponsor for April 2018


Glow Networks was established in 1999 as a solutions provider to Nortel Networks, with a focus on optical networking solutions. Since then, Glow Networks has grown to become a preferred solutions provider to Cisco, particularly to the Advanced Services Group. Glow Networks has many CCIE certified and senior level engineers working around the US in a variety or roles supporting Cisco. In addition, we provide Project Management support to various groups within Cisco.

Local Contact:

Mark Jacobs


Our Last Meeting - Wednesday March 7, 2017

Getting Started with Python (For Network Engineers)


This session is a Hands-On Workshop for Network Engineers that have little or no experience with the Python Scripting/Programming Language. The goal of this Workshop is not to actually teach the fundamentals of the Language. (Although we will provide numerous links to excellent resources to learn Python.) Instead, the Workshop will walk the attendees through the process of setting up many of the key tools on their laptop to make the development of Python scripts/programs easy to write and debug. This includes installing the latest Python compilers (both 2.7 and 3.6) on their Windows PC’s, installing the PyCharm Integrated Development Environment (IDE) that helps you write Python programs, installing the git utility to quickly and easily download Python Code Repositories and many other tips and techniques.

By the end of this Workshop, the attendee will have all the key tools loaded onto their laptop and have a basic understanding as to how to make use of them. They will also have a quick exposure to the Python Language via some simple examples ("Hello World" and other examples) and will have access to additional resources to learn the Python programming language.

IMPORTANT NOTE: Because it is unlikely that Cisco IT will be able to supply WiFi access to attendees at this DFWCUG meeting, attendees wishing to participate in the Hands-On exercises MUST have pre-stage (but not installed) key installer packages on their laptop prior to coming to the meeting. They will then be walked through the steps to install and setup these tools. Watch for more details on the links to the installers that must be pre-staged in our Newsletter that is sent to all registered DFWCUG members.

Details on what to download to your laptop for the Workshop were sent in the Meeting Announcement email. The email is from "The DFWCUG" in case you need to search your inbox.


Beau Williamson, CCIE #1346

Beau Williamson (aka “Mr. Multicast”) is a Principle Network Engineer whose area of expertise is General IP Routing and IP Multicast. Mr. Williamson received his B.S. in Mathematics (with a specialty in Computer Science) from the University of Texas (Dallas) in 1984 and has been working in the computer and networking technology fields for well over 30 years. 14 of those years were with Cisco Systems teaching and consulting on IP Multicast all over the world. This work includes writing scripts and programs for Dev-Net operations as well as developing other software for his other passion which is building flight simulators. His software development experience covers a variety of programming languages including Python, C#, C++ and many others.

Besides being an accomplished Network engineer, Mr. Williamson prides himself at being able to translate, teach and mentor other engineers on complex networking topics. In fact, many of Mr. Williamson’s presentations have been recorded and are used as technical speaker training material by Power Speaking, Inc. on how to give top-notch technical presentations. He has won numerous awards for speaking including Five Time Cisco Networkers Top “Power Session” Presenter and Three Time Cisco Networkers Top “Breakout Session” Presenter and is a CiscoLive Distinguished Speaker.

Finally, Mr. Williamson is a 20+ Year R&S CCIE #1346 (currently CCIE Emeritus), has two network technology Patents and is the author of the highly acclaimed Cisco Press book, “Developing IP Multicast Networks”


The DFWCUG wishes to thank Performance Recruiters as our meeting sponsor for February 2018


Todd Lammle, LLC provides Cisco certification classes, study guides, videos and practice test questions, all found at

You can buy memberships monthly or yearly and the practice questions are updated every month.

Todd Lammle, Certified in almost every Cisco category, is the authority on network certification and internetworking. He is a world-renowned author, speaker, trainer, and consultant with over 100 study guides in print. Todd has over 30 years of experience working with LANs, WANs, and large licensed and unlicensed wireless networks, and currently is working as a Cisco Security expert using Firepower Threat Defense, ISE and Stealthwatch. He’s president and CEO of Todd Lammle, LLC., a network-integration and training firm based in Colorado, Texas, and San Francisco, California. You can reach Todd through his website at