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Top 5 Certifications For Network Engineers In 2020

Top 5 Certifications For Network Engineers In 2020

[Update 04/15/2020: Starting April 15, 2020, Cisco is allowing online testing of their certifications due to the COVID-19 restrictions. Eligible candidates may take the CCNA, DevNet, and other exams online. Read more here.] A new year often means looking at what we’d like to achieve. There

Test Driven Development Concepts

Test Driven Development Concepts

Coming from the network engineering world, I had not a single thought what Test Driven Development (TDD) was. We just do it live, right? All jokes aside, as network engineers, we test out our configuration in a lab environment. Similarly for the DevNet Associate, you’ll need to understand what

Cisco 9800 WLC - AP Sniffer Mode

Cisco 9800 WLC - AP Sniffer Mode

There are a few times when converting a Cisco AP to sniffer mode helps with remote investigation of a wireless issue. In this blog post I'll go over setting an AP into Sniffer mode from the Cisco 9800-CL. In my lab, I’d like to convert a

Parsing XML with Python Minidom

Parsing XML with Python Minidom

A core skill for a DevNet associate is being knowledgeable of how to parse XML into a Python structure. Data can be retrieved from devices using different data structures such as XML, YAML, or JSON. In this lab, I’ll look at parsing XML into a useable structure within Python.

What is YANG - For Network Engineers

What is YANG - For Network Engineers

YANG was created by IETF to define a data structure network engineers can use to get configuration on network devices. It's also used to configure network devices. Network engineers must know what YANG is for the DevNet Associate certification.

Parsing JSON with Python

Parsing JSON with Python

JSON seems to be a popular data structure to use with APIs. I work with Meraki often and noticed the decision they went with. You can see the output easily with an API dev environment such as Postman. When working with the Meraki API, I receive data in the form

Configuring NETCONF: Cisco C9800 WLC

Configuring NETCONF: Cisco C9800 WLC

The best way to learn Python is to leverage your existing lab. Learn how easy it is to enable NETCONF-YANG on the Cisco C9800.