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Faro FaroArm Quantum User Manual

Faro FaroArm Quantum
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FaroArm® Quantum
August 2017
130
Chapter 6: Maintenance and Troubleshooting
Infrastructure BSS (BSS)
In an Infrastructure BSS there is one special STA called the Access Point (AP).
The AP is solely responsible for starting and maintaining the BSS and admitting
(or excluding) other STAs. The AP receives all traffic either bound for or
originating from every STA that it admits into its BSS. (Exception is contained in
IEEE 802.11e amendment for Quality of Service - a special QoS BSS).
The STAs are known as Clients, the AP is known as a Server.
A Distribution System (DS) interconnects a set of APs to create an Extended
Service Set (ESS). The ESS is a super set of all member STAs. The DS
distributes data between ESS STAs. An ESS may include LANs (via a gateway).
The simplest and most common configuration is to have an ESS that includes
exactly one AP. It is known as a Small Or Home Office (SOHO). This is the
intended configuration for the Quantum Stations.
In an Infrastructure BSS, the AP broadcasts Beacon frames that announce the
identity and capabilities of its BSS.
Joining a WLAN
An STA joins a WLAN using a three-step process:
1. Scanning
2. Association
3. Authentication
Scanning
The STA generates a list of all BSSs (APs in the network) it can detect.
Association
In an Infrastructure BSS the Association process requires a frame exchange
between the joining STA and the selected AP. This frame includes the STAs
capabilities. The AP will accept or deny the request (Association Response
Frame). The STA (Client) learns the BSSID (SSID - Service Set Identifier or
WLAN name) and AP MAC address. If the STA is accepted the AP will
issue an Association Identifier (AID - logical port) at this time.
Authentication
Apply Security - establish a secure wireless network. WPA2-Personal is
recommended for the FARO WLAN security (based on IEEE 802.11i and
Advanced Encryption Standard -AES). The password is the real key to
security!
08m80e00_FaroArm_Quantum.book Page 130 Tuesday, August 22, 2017 11:03 AM

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Faro FaroArm Quantum Specifications

General IconGeneral
BrandFaro
ModelFaroArm Quantum
CategoryRobotics
LanguageEnglish