Bedienungsanleitung D-Link DWL-6620APS (Seite 41 von 136) (Englisch)

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Unied Access Point Administrator’s Guide

Page 41

October 2017

Section 4 - Managing the Access Point

Field Description

AeroScout™ Engine

Protocol Support

AeroScout Engine support provides location-based services for wireless networks. Specify

whether to enable support for the AeroScout protocol.

Options are Enabled or Disabled. The default is Disabled. When enabled, Aeroscout

devices are recognized and data is sent to an Aeroscout Engine (AE) for analysis. The AE

determines the geographical location of 802.11 capable devices, such as STAs, APs, and

AeroScout’s line of 802.11 enabled RFID devices, or tags. The AE communicates with APs

that support the AE protocol in order to collect information about the RF devices detected

by the APs. Using the AE protocol, D-Link supports direct communication between AE and

the APs. When operating in managed mode, the AE is congured with the IP address of

the managed access points from which it collects information. The Wireless Switch cannot

communicate with the AE.

For more information about the AeroScout protocol, see “Enabling AeroScout™ Engine

Support” on page 41.

Note: Only AeroScout tag hardware of types T2 and T3 are explicitly supported. Other tag

models are also supported only if their implementation of the AeroScout protocol conforms

to the AeroScout Engine - Access Point Interface Specication, version 2.1.

Note: AeroScout tags operate only in 802.11 b/g mode. Therefore, network administrators

who use the AeroScout tags must congure at least one radio on APs that are expected to

detect tags in either 802.11b/g or 802.11b/g/n mode. The radios congured in 2.4 GHz IEEE

802.11 mode or any of the 5GHz modes cannot detect AeroScout tags.

Note: The AE protocol allows access points to mark detected APs as rogue devices. The

D-Link APs do not support this feature and never report detected APs as rogues.

Table 20 - Wireless Settings

Note: After you congure the wireless settings, you must click Apply to apply the changes and

to save the settings. Changing some settings might cause the AP to stop and restart system

processes. If this happens, wireless clients will temporarily lose connectivity. We recommend that

you change AP settings when WLAN trafc is low.

Using the 802.11h Wireless Mode

For 802.11a radios, if the regulatory domain requires radar detection on the channel, the Dynamic Frequency

Selection (DFS) and Transmit Power Control (TPC) features of 802.11h are automatically activated.

There are a number of key points about the IEEE 802.11h standard:

•) 802.11h only works for the 802.11a band. It is not required for 802.11b or 802.11g.

•) If you are operating in an 802.11h enabled domain, the AP attempts to use the channel you assign. If the channel

has been blocked by a previous radar detection, or if the AP detects a radar on the channel, then the AP

automatically selects a different channel.

•) When 802.11h is enabled, the AP will not be operational in the 5GHz band for at least 60 seconds due to radar

scanning.

•) Setting up WDS links may be difcult when 802.11h is operational. This is because the operating channels of the

two APs on the WDS link may keep changing depending on channel usage and radar interference. WDS will

only work if both the APs operate on the same channel. For more information on WDS, see “Conguring Load

Balancing” on page 64.

Enabling AeroScout™ Engine Support

The AeroScout Engine (AE) is a software platform produced by AeroScout Inc. for location-based services. The AE

can determine the physical location of 802.11 capable AeroScout devices. The AE communicates with APs that have

the AE protocol enabled in order to collect information about the RF devices detected by the APs.

The DWS-4000 Series switch supports only direct communication between the AE and the APs. When operating

in managed mode, the AE is congured with the IP address of the managed access points from which it collects

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