Cisco Cisco Access Registrar 4.2 Especificações descarregar pdf (Página 377)

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Cisco Wireless LAN Controller Configuration Guide

OL-13826-01

Chapter 7 Controlling Lightweight Access Points

Retrieving the Unique Device Identifier on Controllers and Access Points

Using DFS, the controller monitors operating frequencies for radar signals. If it detects radar signals on

a channel, the controller takes these steps:

• It changes the access point channel to a channel that has not shown radar activity within the last 30

minutes. (The radar event is cleared after 30 minutes.) The controller selects the channel at random.

• If the channel selected is one of the channels in Table 7-4, it scans the new channel for radar signals

for 60 seconds. If there are no radar signals on the new channel, the controller accepts client

associations.

• It records the channel that showed radar activity as a radar channel and prevents activity on that

channel for 30 minutes.

• It generates a trap to alert the network manager.

Retrieving the Unique Device Identifier on Controllers and

Access Points

The unique device identifier (UDI) standard uniquely identifies products across all Cisco hardware

product families, enabling customers to identify and track Cisco products throughout their business and

network operations and to automate their asset management systems. The standard is consistent across

all electronic, physical, and standard business communications. The UDI consists of five data elements:

• The orderable product identifier (PID)

• The version of the product identifier (VID)

• The serial number (SN)

• The entity name

• The product description

The UDI is burned into the EEPROM of controllers and lightweight access points at the factory. It can

be retrieved through either the GUI or the CLI.

Using the GUI to Retrieve the Unique Device Identifier on Controllers and

Access Points

Follow these steps to retrieve the UDI on controllers and access points using the GUI.

Step 1 Click Controller > Inventory to open the Inventory page (see Figure 7-30).

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