Dell W-7010 AOS 6.4.x CLI Reference Guide - Page 1502

show ha oversubscription statistics show ha oversubscription statistics Description This command displays statistics for the High Availability extended controller capacity feature Syntax No parameters. Usage Guidelines Starting with ArubaOS 6.4.0.0, a W-7200 Series controller acting as a standby controller can oversubscribe to standby APs by up to four times that controller's rated AP capacity, and a standby W-6000M3 controller module or W-3600 controller can oversubscribe by up to two times its rated AP capacity, as long as the tunnels consumed the standby APs do not exceed the maximum tunnel capacity for that standby controller. Feature Requirements All controllers using this feature must be deployed in a master-local topology where centralized licensing is enabled on the active and standby controllers. If centralized licensing is disabled, the standby AP oversubscription feature are disabled also. Standby controller oversubscription and the high availability state synchronization features are mutually incompatible cannot be be enabled simultaneously. If your deployment uses the state synchronization feature, you must disable it before you enable standby controller oversubscription. W-3200, W-3400 and W-600 Series controllers do not support this feature. Standby Controller Capacity The following table describes the AP oversubscription capacity maximum supported tunnels and for controllers that support this feature. Controller Model W-6000M3 W-3600 W-7210 W-7220 W-7240 Standby AP Capacity 2x rated AP capacity 2x rated AP capacity 4x rated AP capacity 4x rated AP capacity 4x rated AP capacity Maximum Tunnels Supported 16384 tunnels 16384 tunnels 16384 tunnels 32768 tunnels 65536 tunnels To determine the number of standby tunnels consumed by APs on each active controller, multiply the number of APs on the active controllers by the number of BSSIDs per AP. As an example, consider a deployment with four active W-7210 controllers that each have 512 APs with 8 BSSIDs. The APs on each active controller consume (512 * 8) tunnels, for a combined total of 16,384 tunnels. A single W-7210 controller using the standby controller oversubscription feature can act as the standby controller for all four active controllers in Dell Networking W-Series ArubaOS 6.4.x | User Guide show ha oversubscription statistics | 1502