Dell PowerConnect W-AirWave 7.6 User Manual download pdf (Page 15)

Master Console and Failover

The Dell PowerConnect W-AirWave 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:

l Provides network-wide visibility, even when the WLAN grows to 50,000+ devices

l Executive Portal allows executives to view high-level usage and performance data

l Aggregated alerts

l Failover

n Many-to-one failover

n One-to-one failover

The Master Console and Failover servers can be configured with a Device 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.

Integrating AirWave into the Network and Organizational Hierarchy

Dell PowerConnect W-AirWave generally resides in the NOC and communicates with various components of your

WLAN infrastructure. In basic deployments, AirWave communicates solely with indoor wireless access points (and

WLAN controllers over the wired network. In more complex deployments, AirWave seamlessly integrates and

communicates with authentication servers, accounting servers, TACACS+ servers, LDAP servers, routers, switches,

network management servers, wireless IDS solutions, helpdesk systems, indoor wireless access points, mesh devices.

AirWave has the flexibility to manage devices on local networks, remote networks, and networks using Network

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

The power, performance, and usability of AirWave become more apparent when considering the diverse components

within a WLAN. Table 1 itemizes some example network components.

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 Correlation (OpenView, Tivoli, and so forth)

RADIUS Authentication RADIUS authentication servers (Funk, FreeRADIUS, ACS, or IAS)

RADIUS Accounting AirWave itself serves as a RADIUS accounting client

Wireless Gateways Provide HTML redirect and/or wireless VPNs

TACACS+ and LDAP Used to authenticate AirWave administrative users

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

Help Desk Systems Remedy EPICOR

Rogue APs Unauthorized APs not registered in the AirWave database of managed APs

Table 1:

Components of a WLAN

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Dell PowerConnect W-AirWave 7.6 User Manual Page 15