- Netmiko Introduction and Basics
Video link https://vimeo.com/254569911
Length is 8 minutes
- Netmiko Show Commands
Video link https://vimeo.com/254578980
Length is 13 minutes
- Netmiko and Prompting
Video link https://vimeo.com/254587832
Length is 12 minutes
- Netmiko and TextFSM
Video link https://vimeo.com/254611876
Length is 10 minutes
- Netmiko Config Changes
Video link https://vimeo.com/254614073
Length is 8 minutes
- Netmiko Troubleshooting
Video link https://vimeo.com/254786724
Length is 9 minutes
This tutorial is a bit old, but still should be generally correct.
Reference code for these exercises is posted on GitHub at:
Note, you will need some sort of a network device to work on these exercises. This can be a virtual or physical device. Make sure you are only working on test or lab devices.
1. Using Netmiko, establish a connection to a network device and print out the device’s prompt.
2. Use send_command() to send a show command down the SSH channel. Retrieve the results and print the results to the screen.
3. Find a command on your device that has additional prompting. Use send_command_timing to send the command down the SSH channel. Capture the output and handle the additional prompting.
4. Use send_config_set() and send_config_from_file() to make configuration changes.
The configuration changes should be benign. For example, on Cisco IOS I typically change the logging buffer size.
As part of your program verify that the configuration change occurred properly. For example, use send_command() to execute ‘show run’ and verify the new configuration.
5. Optional, use send_command() in conjunction with ntc-templates to execute a show command. Have TextFSM automatically convert this show command output to structured data.
6. Optional, connect to three networking devices one after the other. Use send_command() to execute a show command on each of these devices. Print this output to the screen.
As part of this process, I provided links to several documents that might be helpful from a Netmiko perspective:
I also provided links to some useful Netmiko examples:
Simple Connection using a Dictionary
Simple Connection to Multiple Devices
Basic Show Command
Handling Additional Prompting
Basic Config Change
Config Change from File
Basic Threads Example
Platform Autodection using SSH
In additional to centralizing these links, I also updated the tutorial reference code to Python36 and cleaned up the page’s styling (i.e. added Python syntax highlighting to the code shown on the page).