What is vPC and what are its benefits?

あ. Virtual PortChannel (vPC) is a port-channeling concept that extends link aggregation to two separate physical switches.

Benefits of vPC include:

• • • Utilizes all available uplink bandwidth
    • Allows the creation of resilient Layer 2 topologies based on link aggregation
    • Eliminates the dependence of Spanning Tree Protocol in Layer 2 access distribution layer(s)
    • Enables transparent server mobility and server high availability (ハ) clusters
    • Scales available Layer 2 bandwidth
    • Simplifies network design
    • Dual-homed servers can operate in active-active mode
    • Faster convergence upon link failure
    • Improves convergence time when a single device fails
    • Reduces capex and opex