Release Notes

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
Standby AP
Capacity
Maximum Tunnels Sup-
ported
W-6000M3 2x rated APcapacity 16384 tunnels
W-3600 2x rated APcapacity 16384 tunnels
W-7210 4x rated APcapacity 16384 tunnels
W-7220 4x rated APcapacity 32768 tunnels
W-7240 4x rated APcapacity 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 | Reference Guide show ha oversubscription statistics | 1324