Users Guide

1004| AirGroup Dell Networking W-Series ArubaOS 6.5.x| User Guide
on these devices. The rate of mDNS packets handled by the supported controller platform varies.
Table 235
displays the total number of mDNS packets received per second by supported the controller platforms:
Controller Model mDNS packets per second (pps)
W-7240 100
W-7220 60
W-7210 60
W-7205 40
W-7030 50
W-7024 50
W-7010 30
W-7005 30
W-7008 70
Table 235: mDNS Packet Limits in Controller
Use the following command to determine the number of mDNS packets received per second by the controller:
show airgroup internal-state statistics
Issue this command multiple times to measure the time difference and the mDNS packet count.
General AirGroup Limitations
The AirGroup feature has the following limitations:
l AirGroup is supported only in tunnel and decrypt-tunnel forwarding modes.
l If you use CPPM to define AirGroup users, the shared user and role lists, and location attributes cannot
exceed 1000 characters.
l The RTSP protocol does not support AirPlay on an Apple TV receiver if you enable NAT on the user VLAN
interface.
l The location-based access feature only supports AP FQLNs (Fully Qualified Location Names) configured in
the format <ap name>.floor <number>.<building>.<campus>. The AP names cannot contain periods.
l AirGroup’s DLNA discovery works across VLANs, however, media streaming from Windows Media Server
does not work across VLANs. This limitation is because of Digital Rights Management (DRM) support in
Windows Media Server, which restricts media sharing across VLANs. Media streaming works only when both
client and server are connected to the same VLAN.
l Android devices cannot discover media server while using the native music and video player applications
and when they are connected across VLANs. For example, Samsung Tab 3 cannot discover the media server
on Samsung Galaxy S4 while using the native music and video player applications. Android devices can