Dell PowerConnect W AirWave 7.2 | User Guide Introduction | 15 Multiple tests to eliminate false positive results. Provides rogue discovery that identifies the switch and port to which a rogue device is connected.Master Console and FailoverThe AWMS Master Console and Failover tools enable network-wide information in easy-to-understandpresentation, to entail operational information and high-availability for failover scenarios. The benefits of thesetools include the following: Provides network-wide visibility, even when the WLAN grows to 50,000+ devices Executive Portal allows executives to view high-level usage and performance data Aggregated alerts Failover Many-to-one failover One-to-one failoverThe Master Console and Failover servers can be configured with a Device Down trigger that generates an alert ifcommunication is lost. In addition to generating an alert, the Master Console or Failover server can also sendemail or NMS notifications about the event. See “Supporting AWMS Servers with the Master Console” onpage 211.Integrating AWMS into the Network and Organizational HierarchyAWMS generally resides in the NOC and communicates with various components of your WLAN infrastructure.In basic deployments, AWMS communicates solely with indoor wireless access points (and WLAN controllersover the wired network. In more complex deployments, AWMS seamlessly integrates and communicates withauthentication servers, accounting servers, TACACS+ servers, routers, switches, network management servers,wireless IDS solutions, helpdesk systems, indoor wireless access points, mesh devices. AWMS has the flexibility tomanage devices on local networks, remote networks, and networks using Network Address Translation (NAT).AWMS communicates over-the-air or over-the-wire using a variety of protocols.The power, performance, and usability of the AWMS solution become more apparent when considering thediverse components within a WLAN. Table 3 itemizes such network components, as an example.Table 3 Components of a WLANComponent DescriptionAutonomous AP Standalone device which performs radio and authentication functionsThin AP Radio-only device coupled with WLAN controller to perform authenticationWLAN controller Used in conjunction with thin APs to coordinate authentication and roamingNMS Network Management Systems and Event Correlation (OpenView, Tivoli, and so forth)RADIUS Authentication RADIUS authentication servers (Funk, FreeRADIUS, ACS, or IAS)RADIUS Accounting AWMS itself serves as a RADIUS accounting clientWireless Gateways Provide HTML redirect and/or wireless VPNsTACACS+ Used to authenticate AWMS administrative usersRouters/Switches Provide AWMS with data for user information and AP and Rogue discoveryHelp Desk Systems Remedy EPICORRogue APs Unauthorized APs not registered in the AWMS database of managed APs
