CCNA Data Center DCICT 640-916 Official Cert Guide

What Is Virtual Port Channel?

You learned in the previous section that a port channel bundles multiple physical links into a logical link. All the member ports of a port channel belong to the same network switch. A vPC enables the extension of a port channel across two physical switches. These two switches work together to create a virtual domain, so a port channel can be extended across the two devices within this virtual domain. It means that member ports in a virtual port channel can be from two different network switches. In Layer 2 network design, Cisco vPC technology allows dual-homing of a downstream device to two upstream switches. The upstream switches present themselves to the downstream device as one switch from the port channel and ...