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Users Guide

ManualsBrandsDell ManualsAccess PlatformsW-Series Controller AOS
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Table Of Contents
l iPad users in L2, M, and L4 can discover any Apple TV or AirPrint Printer in L2, M, and L4.
l iPad users in M can discover any Apple TV or AirPrint printer in L1, L2, L3, and L4 and vice-versa.
l iPad users in L1 and L3 cannot discover any Apple TV or AirPrint printer in L2 and L4 and vice-versa.
Scalability
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. For detailed scalability information, see AirGroup
Scalability Limits on page 1003.
An AirGroup domain can include a list of controllers, which may participate in the multi-controller AirGroup
cluster. Depending on the deployment setup, the IP address in the AirGroup domain could either be the
controller IP or VRRP IP address. The configuration elements are defined by the administrator on a master
controller and its associated local controllers that share the same configuration. The actual AirGroup multi-
controller cluster may include one or several local controllers, and this cluster is defined by including one or
several relevant AirGroup domains, on the respective local controller, in the active-domain list. As a result, a
master or local controller may participate in one or more AirGroup clusters based on its active-domain list.
Incorrect or incomplete configuration of the controllers participating in an AirGroup cluster can lead to disjoint
clusters. In a disjoint cluster, an AirGroup user will not have a seamless view of the AirGroup servers spanning
multiple controllers. Therefore ensure that the participating controllers in an AirGroup cluster are configured
appropriately.
The AirGroup domain configurations are restricted to the master controller. This ensures all local controllers in
a master-local setup have unique AirGroup domain names. If duplicate AirGroup domain names on multiple
master controllers are encountered, ensure that the duplicate AirGroup domain names have the same values
to participate in a single AirGroup cluster.
Any controller that shares VLANs with another controller must be part of the same AirGroup multi-controller cluster.
When an AirGroup controller has the list of all the controllers in the multi-controller table, it uses a Dell
proprietary protocol called Process Application Programming Interface (PAPI) to communicate with other
controllers in the table. The PAPI control channel carries AirGroup specific packets only. For configuration
details, see Configuring an AirGroup Domain on page 1012.
Master-Local Controller Synchronization
Administrators can configure AirGroup from the master controller to ease deployment. The master controller
then synchronizes the AirGroup configuration elements with all the local controllers it manages. For more
information, see Master-Local Controller Synchronization on page 1005.
Pre-configured AirGroup Services
The following services are pre-configured and available as part of the factory default configuration:
l AirPlay
l AirPrint
l iTunes
l RemoteMgmt
l Sharing
l Chat
l GoogleCast
Dell Networking W-Series ArubaOS 6.5.x | User Guide AirGroup | 997