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Hank Preston

Network Programmability Evangelist

DevNet

Hank’s two passions are technology and theatre. Bringing them together drives him towards a borderline obsession on creating entertaining presentations, labs and demonstrations that breakdown complex technology topics for audiences. After spending several years working on and behind the scenes on stage productions, what started as a hobby turned to a profession when Hank entered the IT industry with a focus on web and database development and engineering.

Drifting from development into infrastructure engineering brought him to Cisco as a Systems Engineer, focusing on Data Center and Cloud Architecture for large enterprise customers.

And after six years as an SE, Hank has taken up the mantle of a Developer Evangelist with DevNet where he can focus full time on reminding everyone that technology can and should be fun to work with.

Hank holds a Master Degree in Information Systems as well as several certifications including CCIE R/S 38336 from Cisco.

Find Hank at:

twitter: @hfpreston

GitHub: http://github.com/hpreston

Articles

February 26, 2021

DEVELOPER

How can I automate device configurations using CML2?

Cisco Modeling Labs is a great tool for learning all aspects of networking, including automation. Hank discusses options for making the setup and management of your lab topology fast, easy, and automated.

January 19, 2021

DEVELOPER

Read-Only YANG Leaves: Where Does the Data Come From?

DevNet's Hank Preston digs into another user's question related to model driven programmability. Do you have a question about network automation? You can Ask Hank!

January 11, 2021

DEVELOPER

Native, IETF, OpenConfig… Why so many YANG models?

Which YANG model to use for your project? Ask Hank takes a look at your options, and how model driven programmability is a foundational technology for the automation engineer.

December 22, 2020

DEVELOPER

How can I automate a MAC address interface report?

Hank's back to answer another question from the community. This time we use automation to associate ARP data, MAC addresses, and network interfaces.

December 17, 2020

DEVELOPER

Dear Hank… Help Me with RESTCONF URL Creation

Got a network automation question? Ask Hank. Here, a network engineer wants to understand how the URLs for RESTCONF are constructed from the YANG models, and how to use the feature for updating IP addresses.

September 22, 2020

DEVELOPER

Tune in to the “Creators” Channel at DevNet Create

October 13th, DevNet Create 2020 goes virtual, and goes global with three regional programs featuring use cases, showing code, and innovations relevant to your region.

May 1, 2020

DEVELOPER

Mid Season Check-in with NetDevOps Live!

NetDevOps Live! episodes in April were fantastic, looking at Ansible, GitLab, Batfish and HashiCorp. Get ready for May's amazing line-up, with shows on Postman, NetBox, and ELK!

March 20, 2020

DEVELOPER

Announcing NetDevOps Live! Season 3

Take a look at what we've got in store for Season 3 of NetDevOps Live! — powerful tooling available that every NetDevOps engineer can use in their tool chest: Batfish, Postman, HashiCorp, Ansible Network Automation, NetBox and more!

January 20, 2020

DEVELOPER

CLEUR Preview! Source of Truth Driven Network Automation

Learn what a Source of Truth is, and see how DevNet Sandbox uses Netbox to drive network automation!