SmartBridges sB3021 RTS/CTS Length, Rssi Threshold, Preamble Settings, Distance, Frame Bursting

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i n t e l l i g e n t

w i r e l e s s

p l a t f o r m

 

Page Item

 

Descriptions

 

 

 

 

 

 

 

 

 

Default value is 2346 bytes. The range of value is from 256 to 2346.

 

 

 

 

 

 

 

 

a) Shows current value

 

 

 

 

b) Changes value

 

 

 

 

RTS: Request To Send

CTS: Clear To Send

 

 

 

The RTS/CTS length determines the packet size at or larger than the

 

RTS/CTS Length

 

set value. The radio issues a request to send (RTS) before sending

 

 

the packet.

 

 

 

 

 

 

 

 

The primary reason for implementing RTS/CTS is to minimize

 

 

 

collisions among hidden stations.

 

 

 

 

Default value is 2346 bytes. The range of value is from 256 to 2346.

 

 

 

 

 

 

 

This function provides better performance in high noise area. The

 

RSSI Threshold

 

device will ignore any signal below the set RSSI threshold.

 

 

 

 

 

 

 

The default value is -90. The value ranges from -90 to -20.

 

 

 

 

 

 

 

 

a) Shows current value

 

 

 

 

b) Chooses other settings available in the dropdown menu

 

 

 

The radio preamble is a section of data at the head of a packet that

 

 

 

contains information the Root Device and Remote devices need

 

 

 

when sending and receiving packets.

 

 

 

 

The dropdown menu allows the user to select a long, short or

 

Preamble Settings

 

dynamic radio preamble. The default is dynamic.

 

 

 

 

 

 

 

Long: a long preamble provides a stable link

 

 

 

Short: a short preamble improves throughput performance. But it only

 

 

 

allows short preamble capable Remotes to be associated.

 

 

 

Dynamic: a dynamic preamble allows mixing of short and long

 

 

 

preambles

 

 

 

 

 

 

 

 

The appropriate distance between the Root and the Remote devices

 

Distance

 

needs to be configured for best results.

 

 

The range of the link, which corresponds to the ACK window size.

 

 

 

 

 

 

 

 

 

 

Short 802.11g packets can be unwrapped and rebundled into a larger

 

 

 

packet to reduce the impact of mandatory gaps between the packets.

 

Frame Bursting

 

This increases the speed of the 802.11g based wireless networks.

 

 

 

 

 

 

Frame bursting is sometimes also called “packet bursting”.

 

 

 

 

 

 

 

The benefit of concatenation is that it increases the throughput by

 

Concatenation

 

removing overheads from “extra” frames and interframe latencies.

 

 

 

 

 

 

 

Piggy Back is a performance boosting feature which increases the

 

Piggy Back

 

effective transmission speed with no intervention.

 

 

 

 

 

airHaul2 Nexus PRO™ User Guide

Page 73 of 113

 

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Contents Version AirHaul2 Nexus PRO SB3021Table of Contents T e l l i g e n t R e l e s s p l a t f o r m Overview of User Guide About This DocumentTechnical Support Center Related PublicationsSystem Requirements AirHaul2 Nexus PRO Configuration FeaturesPre-Installation Checklist for airHaul2 Nexus PRO ChecklistsSignature of Engineer Name Date Parameters Units Site a Site BPTP Post-Installation Checklist for airHaul2 Nexus PROChecklist Parameters Units Site a Site B User Login and License Agreement AirHaul2 Nexus PRO ConfigurationAdministrator Login AirHaul2 Nexus PRO Summary Information Radio a Wireless ConfigurationRadio B Wireless Operational ModeAdministrator password change Web GUI Administrator Password ChangeNavigation Menu Bar Using the Configuration PagesEditable Boxes for Parameter Editing Menu Functions Menu Item Menu Sub-items Description Home Navigation Menu BarNetworking RadioWPA-PSK TKIP, AES is where Menu Item Menu Sub-items DescriptionWPA2-PSK TKIP,AES Based on ToolsT e l l i g e n t R e l e s s A t f o r m Help Menu Item Menu Sub-items Description ToolsRepeater Mode Configuration Device Operation ModeRepeater Mode Selected Click on the Device Mode link in the System ConfigurationConfirmation IP Configuration 11 Link Aggregate Mode Link Aggregate Root Router ModeNetmask 12 Link Aggregate Root Router Mode Configurations 13 Confirmation Wireless IP Configuration pop up window Link Aggregate Remote Router/NAT Mode 15 Link Aggregate Remote Router/NAT Mode Configuration 16Confirmation Wireless IP pop up window Root Bridge to Remote Bridge Dual Radio Configuration18 System Configuration Page Root to Remote Bridge 19 Changing Root Bridge to Remote Bridge Root Bridge to Remote Router/NAT21 Changing Root Bridge to Remote Router/NAT Remote Bridge to Root Bridge 22 System Configuration--Remote Bridge to Root Bridge23 Changing Remote Bridge to Root Bridge Remote Router/NAT to Root Bridge25 Changing Remote Router/NAT to Root Bridge Remote Router/NAT to Remote Bridge 27 Changing Remote Router/NAT to Remote Bridge Remote Bridge to Remote Router/NATT e l l i g e n t R e l e s s A t f o r m 29 Changing Remote Bridge to Remote Router/NAT Bridge IP Configurations Root Bridge Configuration31 Root Bridge Wireless Settings Wireless ConfigurationsDial-a-Power Wireless SettingsItems Descriptions Domain32 Root Bridge Association List 34 Bridge Configuration Information STP Settings Configuration Configuring Spanning Tree Protocol STPBridge max age Bridge hello timeEthernet port ETH a Bridge forward delayPath cost PriorityT e l l i g e n t R e l e s s A t f o r m 35 Bridge Configuration Bridge IP Configuration Remote Bridge Configuration37 Remote Bridge Wireless Settings Wireless Configuration38 Remote Bridge Associated 40 Remote Router/NAT Ethernet Configurations Remote Router/NAT Configuration41 Remote Router/NAT Wireless IP Configuration 42 Remote Router/NAT Wireless Association Settings 44 Link Status 45 Dhcp Server Configurations Dhcp Configurations46 Disable Dhcp and Dhcp Relay Dhcp Relay Configurations47 Dhcp Relay Agent Configurations 48 Adding a Route in the Routing Table Routing Table49 Deleting a Route entry in the Routing Table 50 Adding Static Route Disabling Radio for Single Radio Operation 51 Disabling of one radio Wireless Settings Wireless Settings ManagementData Encryption Key Table Valid KeyWPA-PSK WPA-Shared Key WPA-PSK Items DescriptionsRe-key Time MAC Address55 WPA2-PSK Frame that the access point is transmitting is larger than Link Performance Parameters and FeaturesRadio Performance Parameters Shows current valueRTS/CTS Length Preamble SettingsRssi Threshold DistanceRadio Operating Choose the desired Radio Operating ModeMode ThroughputBandwidth Controller Bandwidth ControllerEnabling QoS Quality of Service QoSQoS Front Selection Menu of Application Filter Selection Menu of Source/Destination Based Filter Selection of Destination/Source Port TOS value Dialog Box 11 Add filter Confirmation pop up window 13 Delete Selected Filters Deleting Filters14 QoS Configuration Site Survey showing associated devices SurveyAntenna Alignment Antenna Alignment Traffic Statistics Received Errors Transmitted errorEthernet Traffic Statistics Transmitted Bytes Transmitted Unicast packetsReceived Frame FCS Error Count Wireless Traffic Statistics Transmit Success RateTransmit Multiple retry Transmit Retry rateSystem Configuration System ConfigurationReset System Configuration DescriptionsDelayed Reset Version Edit ConfigurationSnmp Security Delayed Reset Settings Reset OptionsProfile Manager NTP Time Server SetupFunction Descriptions Profile ManagerLoad Operating Profile Save ProfileProfile Calendar Scheduling a Profile Ping Test Result Link TestClick on the ‘Radio Receive’ or ‘Radio Transmit’ button Throughput TestClick the ’Compute Distance’ button Link Budget Planning10 Link Budget Planning Calculator Link Budget AirHaul2 Nexus PRO Firmware Upgrade Firmware UpgradeAirHaul2 Nexus PRO Firmware Upgrade firmware transferred Antenna Mode of OperationsThroughput Optimizer RadioPerformance FragmentationMultiple watchdog timers Firmware upgradeLink Test Association of RadioAcronyms and Abbreviations Appendix B Useful terms and definitionsAirHaul 2 Nexus PRO User Guide 109 AirHaul 2 Nexus PRO User Guide 110 Value AirHaul AirPoint AirClient Appendix C Snmp TrapAppendix D Snmp MIB Appendix E License