Dell PowerConnect W-Airwave 7.1 Instrukcja Użytkownika Pobierz pdf (Strona 15)

Dell PowerConnect W AirWave 7.1 | User Guide Introduction | 15

 Queries routers and switches.

 Ranks devices according to the likelihood they are rogues.

 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 Failover

The AWMS Master Console and Failover tools enable network-wide information in easy-to-understand

presentation, to entail operational information and high-availability for failover scenarios. The benefits of these

tools 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 failover

The Master Console and Failover servers can be configured with a Devic

e Down trigger that generates an alert if

communication is lost. In addition to generating an alert, the Master Console or Failover server can also send

email or NMS notifications about the event. See “Using Triggers and Alerts” on page232.

Integrating AWMS into the Network and Organizational Hierarchy

AWMS 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 controllers

over the wired network. In more complex deployments AWMS seamlessly integrates and communicates with

authentication servers, accounting servers, TACACS+ servers, routers, switches, network management servers,

wireless IDS solutions, help systems, indoor wireless access points, mesh devices, and WiMAX devices.

AWMS has the flexibility to manage devices on local net

works, remote networks, and networks using Network

Address Translation (NAT). AWMS communicates over-the-air or over-the-wire utilizing a variety of protocols.

The power, performance, and usa

bility of the AWMS solution become more apparent when considering the

diverse components within a Wireless LAN. Table 3 itemizes such network components, as an example.

Table 3 Components of a Wireless LAN

Component Description

Autonomous AP Standalone device which performs radio and authentication functions

Thin AP Radio-only device coupled with WLAN controller to perform authentication

WLAN controller Used in conjunction with thin APs to coordinate authentication and roaming

NMS Network Management Systems and Event Correlatio

n (OpenView, Tivoli, and so forth)

RADIUS Authentication RADIUS Authentication servers (Funk

, FreeRADIUS, ACS, or IAS)

RADIUS Accounting AWMS itself serves as a RADIUS accounting client

Wireless Gateways Provide HTML redirect and/or wireless VPNs

TACACS+ Used to authenticated AWMS administrative user

Routers/Switches Provide AWMS with data for user information and AP and Rogue discovery

Help Desk Systems Remedy EPICOR

1 2 ... 10 11 12 13 14 15 16 17 18 19 20 ... 333 334

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