Netgear WC7520 WC7520 Reference Manual - Page 119

10 10. Managing Stacking and Redundancy This chapter includes the following sections: • Managing Stacking on this page • Managing Redundancy on page 121 Managing Stacking The wireless controller supports stacking of up to three units for management of up to 150 access points through purchased licensing (see Licenses on page 15). One wireless controller functions as the primary controller and the other two wireless controllers function as secondary controllers. Figure 78 shows a stacked configuration that is licensed to manage 120 access points. Figure 78. The wireless controllers that you intend to make members of the stack must be connected over a wired connection. A switch or router can be located in between the wireless controllers that are part of a stack. You configure the primary and secondary controllers individually, enable stacking on all controllers, and then synchronize their access point configurations with the primary controller. When stacking is enabled, the primary controller synchronizes the administrative user name and password and the firmware image with the secondary controllers. Chapter 10: Managing Stacking and Redundancy | 119