Cisco Cisco Access Registrar 4.2 Specifikace stáhnout pdf (Strana 317)

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Cisco Wireless LAN Controller Configuration Guide

OL-13826-01

Chapter 7 Controlling Lightweight Access Points

Cisco 1000 Series Lightweight Access Points

Also note that the 802.11a 5-GHz left external antenna connector is separate from the internal antennas,

and adds diversity to the 802.11a transmit and receive path. Note that no external 802.11a antennas are

certified in FCC-regulated areas, but external 802.11a antennas may be certified for use in other

countries.

Antenna Sectorization

Note that the Cisco WLAN Solution supports Antenna Sectorization, which can be used to increase the

number of clients and/or client throughput a given air space. Installers can mount two Cisco 1000 series

lightweight access points back-to-back, and the Network operator can disable the second antenna in both

access points to create a 360-degree coverage area with two sectors.

Installers can also mount Cisco 1000 series lightweight access points on the periphery of a building and

disable the Side B internal antennas. This configuration can be used to supply service to the building

interior without extending coverage to the parking lot, at the cost of eliminating the internal antenna

diversity function.

Cisco 1000 Series Lightweight Access Point LEDs

Each Cisco 1000 series lightweight access point is equipped with four LEDs across the top of the case.

They can be viewed from nearly any angle. The LEDs indicate power and fault status, 2.4-GHz

(802.11b/g) Cisco radio activity, and 5-GHz (802.11a) Cisco radio activity.

This LED display allows the wireless LAN manager to quickly monitor the Cisco 1000 series

lightweight access point status. Here is the expected LED behavior. Note that the LED behavior is the

same for both Layer 2 and Layer 3 LWAPP mode until you get to step 6.

1. During discovery, the LEDs turn on and off, one after another.

2. The LEDs turn off, and then the Power LED turns on.

3. If the radio state is Up, then the 2.4- or 5-GHz LED is on. If the radio state is Down, then the 2.4-

or 5-GHz LED is off.

4. Before the access point joins the controller, its radio state is in the Up state in order to perform

over-the-air-provisioning (OTAP).

5. The access point turns its radio Down and sends a join request to the controller. The controller

responds and configures the access point to turn its radio Up again.

6. Because there are more configurations for Layer 3 mode than Layer 2 mode, you may notice a

difference in the LED behavior. In Layer 2 mode, the radio LED turns off and on so quickly that you

probably cannot see it. However, in Layer 3 mode, it takes much longer for the radio to turn off and

on, so you can see when this occurs.

For more detailed LED troubleshooting instructions, refer to the hardware installation guide for the

access point.

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