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Chapter 7: Using SmartPath EMS VMA

7. Using SmartPath EMS VMA

Think of the cooperative control architecture as consisting of three broad planes of communication. On the data plane, wireless

clients gain network access by forming associations with SmartPath APs. On the control plane, SmartPath APs communicate with

each other to coordinate functions such as best-path forwarding, fast roaming, and automatic RF management. On the manage-

ment plane, SmartPath EMS VMA provides centralized configuration, monitoring, and reporting of multiple SmartPath APs. These

three planes are shown in Figure 7-1.

The management

plane is the logical division of

administrative traffic relating to the

configuration and monitoring of SmartPath APs.

From a management system, an admin can use the SmartPath

EMS to configure, maintain, and monitor multiple SmartPath APs,

essentially coordinating the control and data planes from a single, central location.

Data Plane

Control Plane

Management Plane

The data plane

is the logical division of

wireless client traffic (user data)

traversing a wireless-to-wired LAN. Traffic

in the data plane follows optimal paths

that various mechanisms in the control

plane determine.

The control plane is

the logical division of traffic that

Cluster members use to collaborate on

how best to forward user data, coordinate

radio frequencies, and provide Layer2

and Layer3 roaming capabilities with

each other.

To the wired

network ...

Management

System

Figure 7-1. Three communication planes in the cooperative control architecture.

As you can see in Figure 7-1, SmartPath EMS VMA operates solely on the management plane. Any loss of connectivity between

SmartPath EMS VMA and the SmartPath APs it manages only affects SmartPath AP manageability; such a loss has no impact on

communications occurring on the control and data planes.

7.1 Installing and Connecting to the SmartPath EMS VMA GUI

To begin using the SmartPath EMS VMA GUI, you must first configure the MGT interface to be accessible on the network, cable

SmartPath EMS VMA and your management system (that is, your computer) to the network, and then make an HTTP connection

from your system to the MGT interface.

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Black Box LWN600CM-1 Guida Utente Pagina 66

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