AIR-WLC2125-K9

The Cisco 2100 series of wireless LAN controllers (WLC) provide a cost effective unified wireless solution for small businesses as well as remote or satellite offices.  Although the 2100 series WLCs have multiple 10/100 ports, like the larger WLCs, they do not behave like switches or routers.  The 2100 is a software switch without full IPv4 connectivity between the individual ports; so it is not good idea to use the different ports as a hub/switch implementation.  Understanding this fundamental point is a key aspect of getting the best performance out of the controller.

Because of the lack of full IPv4 support between the individual ports, the 2100s are designed to have a single network connection. This means that all of the interfaces, i.e. management, ap-manager, and dynamic interfaces, on the WLC should all be assigned to the same physical port.  Configuration Example 1 shows a 2100 using port 1 as the network distribution port for the WLC.