Cisco Switch Virtual Interface for VLAN

Introduction

With a Cisco switch, you can create virtual interfaces that connect two or more VLANs. This is useful for situations where you have one physical switch, but need to manage multiple networks on the same network device. The virtual interface allows you to create logical connections between different VLANs on the same switch. You can then use these virtual interfaces in your configuration as if they were physical ports on the device.

Virtual interface is a logical interface that connect two or more VLANs

A virtual interface is created by assigning an 802.1Q trunk port to a VLAN as opposed to having separate physical interfaces for each layer 3 subnet.

Conclusion

Switch Virtual Interface is a logical interface that connect two or more VLANs. This article describes how to configure a Virtual Interface on Cisco Switch, and shows some examples with configuration commands and output.