Release Notes

265 | Services Dell Networking W-Series Instant 6.4.2.0-4.1.1 | User Guide
Figure 84 AirGroup Enables Personal Device Sharing
AirGroup is not supported on a 3G and PPPoE uplinks.
Multicast DNS and Bonjour® Services
Bonjour is the trade name for the zero configuration implementation introduced by Apple. It is supported by
most of the Apple product lines, including the Mac OS X operating system, iPhone, iPod Touch, iPad, Apple TV,
and AirPort Express. Apple AirPlay and AirPrint services are based on the Bonjour protocol and are essential
services in campus Wi-Fi networks.
Bonjour can be installed on computers running Microsoft Windows® and is supported by the new network-
capable printers. Bonjour is also included with popular software programs such as Apple iTunes, Safari, and
iPhoto. Bonjour uses multicast DNS (mDNS) to locate devices and the services offered by these devices.
As shown in the following figure, the W-IAP1 discovers AirPrint (P1) and W-IAP3 discovers Apple TV (TV1). W-
IAP1 advertises information about its connected P1 device to the other W-IAPs that isW-IAP2 and W-IAP3.
Similarly, W-IAP3 advertises TV1 device to W-IAP1 and W-IAP2. This type of distributed architecture allows any
W-IAP to respond to its connected devices locally. In this example, the iPad connected to W-IAP2 obtains direct
response from the same W-IAP about the other Bonjour-enabled services in the network.