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3-8
Cisco Wireless LAN Controller Configuration Guide
OL-8335-02
Chapter3 Configuring Ports and Interfaces
Overview of Ports and Interfaces
WLANs
A WLAN associates a service set identifier (SSID) to an interface. It is configured with security, quality
of service (QoS), radio policies, and other wireless network parameters. Up to 16 access point WLANs
can be configured per controller.
Note Chapter 6 provides instructions for configuring WLANs.
Figure 3-4 illustrates the relationship between ports, interfaces, and WLANs.
Figure 3-4 Ports, Interfaces, and WLANs
As shown in Figure 3-4, each controller port connection is an 802.1Q trunk and should be configured as
such on the neighbor switch. On Cisco switches, the native VLAN of an 802.1Q trunk is an untagged
VLAN. Therefore, if you configure an interface to use the native VLAN on a neighboring Cisco switch,
make sure you configure the interface on the controller to be untagged.