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


Our monthly meeting is always held at 6:30pm on the first Wednesday of each month... attendance is free but please become a member by signing up for our Meeting Announcements mailing list.



Our Next Meeting


Wednesday April 5, 2017


SDN/OpenFlow Analysis

What is SDN? What is OpenFlow? Basically SDN is about programming network devices like switches and routers from a central point known as the SDN Controller. The controller uses a common protocol - OpenFlow when communicating to the devices.

We'll start by looking at OpenFlow traffic, the initial stages of communications between OpenFlow enabled switches and the SDN controller, see examples of OpenFlow comms using applications on the SDN controller for configuring the switch for flows, and demonstrations showing how a switch processes traffic based on OpenFlow programming and standard switch operations - this is known as "Hybrid SDN".

Everyone is encouraged to bring their laptop with Wireshark installed (min v2.0.0), download the provided trace file, and follow Jeff viewing OpenFlow packets. You will use built-in Wireshark OpenFlow display filters and create color definitions to assist in recognizing OpenFlow traffic quicker.


Jeff Carrell, Network Instructor for HPE Education Services

Jeff Carrell is a Network Instructor for HPE Education Services. Jeff facilitates a plethora of networking courses offered by HPE, serves as a SME for customized courses for specific customer requirements, and participates in new course development.

Most recently Network Consultant at Network Conversions, he is a frequent industry speaker, freelance writer, IPv6 Forum Certified Trainer, and was a network instructor and course developer to major networking manufacturers. He is a technical lead and co-author for the book, Guide to TCP/IP: IPv6 and IPv4, 5th Edition and lead technical editor on Fundamentals of Communications and Networking, Second Edition. Jeff focuses on IPv6 and SDN interoperability, and is also working in Network Automation/NetDevOps.

Jeff Carrell


6:00-6:30 PM - Pizza dinner provided
6:30-9:00 PM - Presentations & Networking with your fellow packet-heads



Cisco's Richardson Campus
2200 E President George Bush
Building 5 - Bullwinkle Room - Enter on the South side to sign in
Richardson, TX

Click for interactive Google map

Our Monthly Meeting Sponsor

DFWCUG welcomes
GDT as our monthly meeting sponsor for April 2017


GDT is an award winning technology integration partner with expertise in the delivery of enterprise network, collaboration, mobility and data center technologies to service providers, large enterprises, and businesses of all sizes. In business since 1996, GDT has a successful track record in designing, building, and delivering complex solutions.

DESIGN IT. GDT solution architects and engineers realize the vision of both business leaders and IT professionals by designing powerful and scalable IT ecosystems that increase resource productivity.

BUILD IT. We build, stage, configure, and test our best-of-breed technology solutions in state-of-the-art facilities to ensure the continuation of a client’s business operations.

DELIVER IT. GDT delivers true, turnkey installations, knowledge transfer and training, and satisfied clients that meet their business objectives.

If you would like to learn more about GDT visit or call 214-857-6100.

Devin Delaney
Account Manager
(262) 227-2928



Future Meetings 


Topic: TBD



 Meeting Links

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 Meeting Contacts

 Meeting Location / Map

Cisco's Richardson Campus
2200 E President George Bush

See meeting room / building location above for details.

Click for interactive Google map


Building 5 is highlighted above... monthly meeting is held in the Bullwinkle Room