New Training: Apply Virtual Port-Channels
In this 8-video skill, CBT Nuggets trainer Jeff Kish explores virtual port-channel technology, how it’s used in the data center, and the topologies we can build with them. Watch this new Cisco training.
Learn Cisco with one of these courses:
Cisco CCNP Data Center
This training includes:
59 minutes of training
You’ll learn these topics in this skill:
Labbing VPCs in CML
Configuring a VPC Domain
VPC Roles and Failover
Configuring VPC Roles
VPC Configuration Options
Configuring VPC Options
Review and Quiz
How Does a Virtual Port-Channel Work
Virtual port-channel, or vPC, is a Cisco proprietary feature that allows two physical Nexus switches of the same model to create one single virtual switch known as a VPC pair.
The benefit to treating these separate physical switches as a single virtual switch is that this vPC pairing can establish a single Etherchannel. By establishing this Etherchannel, the peering device used to receive and transmit data via the switch is unaware data is transmitted via two physical switches. It simply sees one virtual switch.
In this Cisco-specific configuration, the VPC channel group can be thought of as the traditional Etherchannel with the addition of member ports on different switches. Likewise, the VPC Port or VPC Member Port is simply a port that is part of the VPC-based port-channel.
The value organizations gain from vPC switching is that it removes some of the bottleneck and congestion issues that arise with the implementation of a single switch. By implementing this solution, organizations can benefit from more resilient networks with optimized efficiency.