Virtual Port Channels (vPC)
vPC’s, or Virtual Port Channels, are a Cisco Nexus technology. They are used to connect layer-2 devices to two switches at once.
This makes it possible to create a highly available environment in the data centre. If one switch fails, the other one continues to operate.
The articles in this series will help you to understand how it works, how it’s configured, and how to troubleshoot.