Docker Containers

June 27, 2023

LEARNING

Exploring Default Docker Networking
Part 1

18 min read

Learn Docker networking starting with the three options every network engineer should know. Principal Engineer Hank Preston provides a step-by-step walkthrough of the default Docker bridge network environment in Linux, Docker container networking, and much more.

September 20, 2022

LEARNING

Exploring Default Docker Networking
Part 2

17 min read

In the second installment of the default Docker networking series, Principal Engineer Hank Preston continues his exploration into layer 3 (network), shining the light on how container network traffic is routed, NATed, and filtered.

February 16, 2021

DEVELOPER

Understanding Container Images, Part 3: Working with Overlays

4 min read

Learn more about the mechanism Docker uses to work with image layers, and how you can use it for other projects.

February 1, 2021

DEVELOPER

Understanding Container Images, Part 2: Optimizing Your Images

4 min read

See how to build containers that help you build your application in an automated and consistent way, and then use it in your environment.

January 25, 2021

DEVELOPER

Understanding Container Images, Part 1: Image Layers

9 min read

See how thinking about container images as an advanced file packaging system may be just what’s needed to make your application run.

February 19, 2020

DEVELOPER

Measuring Network Performance by Hosting on the Cisco Catalyst 9300 Switch

2 min read

Learn how application hosting on Catalyst 9000 switches opens opportunities for innovation.

October 17, 2019

DEVELOPER

It’s All About Visibility – DevOps Series, Part 13

2 min read

See how to interface with kubernetes API and graphically display how its constructs relate to each other and the underlying infrastructure.

August 13, 2019

DEVELOPER

“Code for Catalyst Challenge” is Now Open!

2 min read

Create an original Docker container application for the Cisco Catalyst Switch 9300, and WIN great prizes! New learning labs and Sandbox get you started.

July 25, 2019

TECHWISETV

Applications Running on Network Switches?

1 min read

Why would you ever want to run applications on your network switch? Isn’t that a bit of a ‘distraction’ for what we want our switches to be doing? Maybe not. Application Hosting on the Catalyst 9000 provides intelligence at the edge. Now with support for NATIVE docker applications.