User Manual
Table Of Contents
- Chapter 1 - System Description
- 1.1 Introducing BreezeACCESS VL
- 1.2 Base Station Equipment
- 1.3 Subscriber Unit
- 1.4 BreezeACCESS VL B&B (4.9 GHz only)
- 1.5 Networking Equipment
- 1.6 Management Systems
- 1.7 Specifications
- 1.7.1 Radio
- 1.7.2 Data Communication
- 1.7.3 Configuration and Management
- 1.7.4 Standards Compliance, General
- 1.7.5 Physical and Electrical
- 1.7.6 Environmental
- Chapter 2 - Installation
- 2.1 Installation Requirements
- 2.2 Equipment Positioning Guidelines
- 2.3 Installing the Outdoor Unit
- 2.4 Installing the Universal IDU Indoor Unit
- 2.5 Installing the SU-I
- 2.6 Installing the Modular Base Station Equipment
- Chapter 3 - Commissioning
- Chapter 4 - Operation and Administration
- 4.1 Working with the Monitor Program
- 4.2 Menus and Parameters
- 4.2.1 Main Menu
- 4.2.2 Info Screens Menu
- 4.2.3 Unit Control Menu
- 4.2.3.1 Reset Unit
- 4.2.3.2 Default Settings
- 4.2.3.3 Change Unit Name
- 4.2.3.4 Change Password
- 4.2.3.5 Flash Memory Control
- 4.2.3.6 Log Out Timer
- 4.2.3.7 Ethernet Negotiation Mode
- 4.2.3.8 Change System Location
- 4.2.3.9 Event Log Menu
- 4.2.3.10 Feature Upgrade
- 4.2.3.11 SW Version Download
- 4.2.3.12 Configuration File Upload/Download
- 4.2.4 Basic Configuration Menu
- 4.2.5 Site Survey Menu
- 4.2.6 Advanced Configuration Menu
- 4.2.6.1 IP Parameters
- 4.2.6.2 Air Interface Parameters
- 4.2.6.2.1 Country Code and Sub-Bands
- 4.2.6.2.2 ESSID Parameters
- 4.2.6.2.3 Frequency Definition Parameters
- 4.2.6.2.4 Frequency Definition Submenu in AU
- 4.2.6.2.5 Frequency Definition Submenu in SU
- 4.2.6.2.6 Best AU Parameters (SU)
- 4.2.6.2.7 Scanning Mode (SU only)
- 4.2.6.2.8 Power Control Parameters
- 4.2.6.2.9 Antenna Gain
- 4.2.6.2.10 Cell Distance Parameters (AU only)
- 4.2.6.2.11 Arbitration Inter-Frame Spacing (AIFS)
- 4.2.6.2.12 Maximum Number of Associations (AU only)
- 4.2.6.2.13 Wireless Link Trap Threshold (AU only)
- 4.2.6.2.14 Spectrum Analysis
- 4.2.6.2.14.1 Spectrum Analysis Channel Scan Period
- 4.2.6.2.14.2 Spectrum Analysis Scan Cycles
- 4.2.6.2.14.3 Automatic Channel Selection (AU only)
- 4.2.6.2.14.4 Spectrum Analysis Activation
- 4.2.6.2.14.5 Reset Spectrum Analysis Information
- 4.2.6.2.14.6 Spectrum Analysis Information Display
- 4.2.6.2.14.7 Spectrum Analysis Information Display - Continuous
- 4.2.6.2.14.8 Show Spectrum analysis Parameters & Data
- 4.2.6.2.15 Lost Beacons Transmission Watchdog Threshold (AU only)
- 4.2.6.2.16 Disassociate (AU only)
- 4.2.6.2.17 Noise Immunity Control
- 4.2.6.2.18 Noise Floor Calculation Parameters
- 4.2.6.3 Network Management Parameters
- 4.2.6.3.1 Access to Network Management
- 4.2.6.3.2 Network Management Filtering
- 4.2.6.3.3 Set Network Management IP Address
- 4.2.6.3.4 Delete a Network Management IP Address
- 4.2.6.3.5 Delete All Network Management IP Addresses
- 4.2.6.3.6 Set/Change Network Management IP Address Ranges
- 4.2.6.3.7 SNMP Traps (AU Only)
- 4.2.6.3.8 Wi2 IP Address (SU Only)
- 4.2.6.4 Bridge Parameters
- 4.2.6.4.1 VLAN Support
- 4.2.6.4.1.1 VLAN ID-Data (SU only)
- 4.2.6.4.1.2 VLAN ID-Management
- 4.2.6.4.1.3 VLAN Link Type
- 4.2.6.4.1.4 VLAN Forwarding (AU and SU)
- 4.2.6.4.1.5 VLAN Relaying (AU only)
- 4.2.6.4.1.6 Service Provider VLAN ID (SU only)
- 4.2.6.4.1.7 VLAN Traffic Priority
- 4.2.6.4.1.8 VLAN QinQ Protocol Ethertype
- 4.2.6.4.1.9 Show VLAN Parameters
- 4.2.6.4.2 Ethernet Broadcast Filtering (SU only)
- 4.2.6.4.3 Ethernet Broadcast/Multicast Limiter
- 4.2.6.4.4 Bridge Aging Time
- 4.2.6.4.5 Broadcast/Multicast Relaying (AU only)
- 4.2.6.4.6 Unicast Relaying (AU only)
- 4.2.6.4.7 MAC Address List (AU only)
- 4.2.6.4.8 Roaming Option (SU only)
- 4.2.6.4.9 Ports Control (SU only)
- 4.2.6.4.10 Show Bridge Parameters
- 4.2.6.4.1 VLAN Support
- 4.2.6.5 Performance Parameters
- 4.2.6.5.1 RTS Threshold
- 4.2.6.5.2 Minimum Contention Window
- 4.2.6.5.3 Maximum Contention Window
- 4.2.6.5.4 Multicast Modulation Level (AU only)
- 4.2.6.5.5 Maximum Modulation Level
- 4.2.6.5.6 Average SNR Memory Factor
- 4.2.6.5.7 Number of HW Retries
- 4.2.6.5.8 Burst Mode
- 4.2.6.5.9 Adaptive Modulation Algorithm (Multi Rate)
- 4.2.6.5.10 Concatenation Parameters
- 4.2.6.6 Service Parameters
- 4.2.6.6.1 User Filtering Parameters (SU only)
- 4.2.6.6.2 MIR and CIR Parameters
- 4.2.6.6.2.1 MIR: Downlink (SU only)
- 4.2.6.6.2.2 MIR: Uplink (SU only)
- 4.2.6.6.2.3 CIR: Downlink (SU only)
- 4.2.6.6.2.4 CIR: Uplink (SU only)
- 4.2.6.6.2.5 Maximum Burst Duration (SU and AU)
- 4.2.6.6.2.6 Maximum Delay (SU only)
- 4.2.6.6.2.7 Graceful Degradation Limit (AU only)
- 4.2.6.6.2.8 MIR Only Option (AU only)
- 4.2.6.6.2.9 MIR Threshold Percent (AU only)
- 4.2.6.6.2.10 Show MIR/CIR Parameters
- 4.2.6.6.3 Traffic Prioritization
- 4.2.6.6.3.1 VLAN Priority Threshold
- 4.2.6.6.3.2 ToS Prioritization
- 4.2.6.6.3.3 UDP/TCP Port Ranges Traffic Prioritization
- 4.2.6.6.3.4 Low Priority Traffic Minimum Percent
- 4.2.6.6.3.5 Wireless Link Prioritization Parameters (AU)
- 4.2.6.6.3.5.1 Wireless Link Prioritization Option
- 4.2.6.6.3.5.2 Low Priority AIFS
- 4.2.6.6.3.5.3 Number of HW Retries for High Priority Traffic
- 4.2.6.6.3.5.4 Number of HW Retries for Low Priority Traffic
- 4.2.6.6.3.5.5 AU Burst Duration for High Priority Traffic
- 4.2.6.6.3.5.6 AU Burst Duration for Low Priority Traffic
- 4.2.6.6.3.5.7 SU Burst Duration for High Priority Traffic
- 4.2.6.6.3.5.8 SU Burst Duration for Low Priority Traffic
- 4.2.6.6.4 DRAP Parameters (AU only)
- 4.2.6.6.5 Show Service Parameters
- 4.2.6.7 Security Parameters
- 4.2.6.8 Country Code Parameters
Chapter 4 - Operation and Administration
BreezeACCESS VL System Manual
178
For AUs in the 900 MHz band the default is 60. When Tx power is bellow 22 dBm
The RTS Threshold can be changed to 4092 to improve overall performance. If the
Tx power is higher then 22 dBm it is strongly recommended not to change the
RTS Threshold from its default value of 60 since it may result in an excessive
number of CRC errors on the received side.
4.2.6.5.2 Minimum Contention Window
The Minimum Contention Window parameter determines the time that a unit
waits from the time it has concluded that there are no detectable transmissions
by other units until it attempts to transmit. The BreezeACCESS VL system uses a
special mechanism based on detecting the presence of a carrier signal and
analyzing the information contained in the transmissions of the AU to estimate
the activity of other SUs served by the AU. The target is to minimize collisions in
the wireless medium resulting from attempts of more than one unit to transmit at
the same time.
The system uses an exponential Back-off algorithm to resolve contention between
several units that want to access the wireless medium. The method requires each
station to choose a random number N between 0 and a given number C each time
it wants to access the medium. The unit will attempt to access the medium only
after a time equal to DIFS (for more details refer to section
4.2.6.2.11
) plus N time
slots, always checking if a different unit has accessed the medium before. Each
time the unit tries to transmit and a collision occurs; the maximum number C
used for the random number selection will be increased to the next available
value. The available values are 7, 15, 31, 63, 127, 255, 511 and 1023.
The Minimum Contention Window parameter is the first maximum number C
used in the back-off algorithm. The higher the number of SUs served by the same
AU, the higher the Minimum Contention Window for each SU should be. In
addition, when the Wireless Link Prioritization Option is enabled, the Minimum
and Maximum Contention Window parameters can be configured to provide
certain units with an advantage over other units.
The available values are 0, 7, 15, 31, 63, 127, 255, 511 and 1023. A value of 0
means that the contention window algorithm is not used and that the unit will
attempt to access the medium immediately after a time equal to DIFS.
The default value is 15.
CAUTION
A value of 0 disables the contention window back-off algorithm. It should only be used in point-to-
point applications. For more details on configuring units in a point-to-point link refer to section
4.2.6.2.11.