A virtual interface is a logical wireless LAN controller interface associated with the Virtual Gateway IP Address configured during initial controller setup. It supports controller functions such as relaying client DHCP messages. section 21.2.1 section 21.4
Operational distinctions:
- Represents a logical interface rather than a physical connector. section 21.2.1
- Uses the Virtual Gateway IP Address for specific controller functions, including DHCP relay. section 21.2.1 section 21.4
- Differs from dynamic interfaces, which map WLANs to VLANs, and from the AP-manager interface, which carries CAPWAP communication with LWAPs. section 21.2.1 section 21.4
Figure 21.9 WLC ports and interfaces. Ports are physical connectors that connect to other devices, and interfaces are logical entities in the WLC.
Use the interface diagram to distinguish logical WLC interfaces from the physical ports that connect to other devices. section 21.2.1
