User's Manual

AirGroup Scalability Limits
Table 207 displays the total number of AirGroup servers (Apple TV, AirPrint printer) and users (iPad) supported
in individual controllers:
Controller Model
Number of
AirGroup
servers
Number of
AirGroup
users
W-3200 500 1500
W-3400 1000 3000
W-3600 2000 6000
W-6000M3 2000 6000
W-7005 300 700
W-7010 500 1500
W-7030 1000 3000
W-7210 2000 9000
W-7220 2000 12000
W-7240 2000 16000
Table 207: AirGroup Server and User Limits in Controller
In a multi-controller deployment, there is a scaling limit of 2,000 AirGroup servers and 16,000 AirGroup users for all
controllers in a cluster. If you require more servers and users than the prescribed limit, configure multiple clusters,
so that each cluster is within the prescribed limit.
The ArubaOS scaling limits are based on the following metrics:
l Memory Utilization
l CPU Utilization
Memory Utilization
The memory utilization is affected by the number of AirGroup servers and users in an AirGroup cluster. In an
AirGroup cluster, the total number of AirGroup servers and users cannot exceed the limit defined by the top-
end controller. For example, in an AirGroup cluster of one W-3200 controller and two W-6000M3 controllers,
the cluster limit is determined as per the scaling limit of the top-end controller which is the W-6000M3
controller. For the W-3200 controller in the cluster, the controller platform limit of the W-3200 controller is
applied. Based on the memory utilization, Table 207 summarizes the maximum number of AirGroup servers
and users for all supported controller platforms.
CPU Utilization
The CPU utilization is measured by the rate at which the controller receives mDNS packets. The rate of mDNS
packets in the cluster depends on the number of AirGroup servers, users, and number of applications installed
on these devices. The rate of mDNS packets handled by the supported controller platform varies. Table 208
displays the total number of mDNS packets received per second by supported the controller platforms:
Dell Networking W-Series ArubaOS 6.4.x | User Guide AirGroup | 952