Dell W-Series 228 Instant 6.4.3.1-4.2 User Guide - Page 276

Chapter 20 Services This chapter provides information on how to configure following services on a W-IAP: l AirGroup l Real Time Location Server (RTLS) l Analytics and Location Engine (ALE) l OpenDNS l Communications Assistance for Law Enforcement Act (CALEA) l Palo Alto Network Firewall l XML-API Server AirGroup Configuration AirGroup provides a unique enterprise-class capability that leverages zero configuration networking to enable AirGroup services from mobile devices in an efficient manner. Zero configuration networking enables service discovery, address assignment, and name resolution for desktop computers, mobile devices, and network services. It is designed for flat, single-subnet IP networks such as wireless networking at home. The users can register their personal devices and define a group of users who can to share the registered devices. Administrators can register and manage an organization's shared devices such as printers and grant global access to each device, or restrict access according to the username, role, or user location. In large universities and enterprise networks, it is common for devices to connect to the network across VLANs. As a result, user devices on a specific VLAN cannot discover service that resides on another VLAN. As the addresses used by the protocol are link-scope multicast addresses, each query or advertisement can only be forwarded on its respective VLAN, but not across different VLANs. Broadcast and multicast traffic are usually filtered out from a wireless LAN network to preserve the airtime and battery life. This inhibits the performance of AirGroup services that rely on multicast traffic. Dell addresses this challenge with AirGroup technology. The distributed AirGroup architecture allows each W-IAP to handle mDNS and DLNA queries and responses individually instead of overloading a Virtual Controller with these tasks. This results in a scalable AirGroup solution. The AirGroup solution supports both wired and wireless devices. An AirGroup device can be registered by an administrator or a guest user. 1. The AirGroup administrator gives an end user the AirGroup operator role, which authorizes the user to register the client devices on the CPPM platform. 2. W-IAPs maintain information for all AirGroup services. W-IAP queries CPPM to map each device's access privileges to the available services and responds to the query made by a device based on contextual data such as user role, username, and location. Dell Networking W-Series Instant 6.4.3.1-4.2.0.0 | User Guide Services | 276