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RadioLAN Campus BridgeLINK manual Interrogating the System for Performance Information

Models: Campus BridgeLINK

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Interrogating the System for Performance Information

Performance is a combination of speed and accuracy. When the CPU transmits at higher rates, and retransmits packets fewer times, it has a higher rate of performance. Most users discover performance issues when sending large files from one CPU to the other.

Although multiple users can send information across the link at the same time, lower shared network resources can cause slower file transfer time. While data packets are being transferred, available link resources shared by all users decrease, so when the CPU finishes the job faster, increased shared link resources are made available for other packet transfers, making file transfer faster.

It is important to query the CPU for performance information occasionally. This allows you to determine when performance issues arise over time and indicates where you can make changes to improve performance.

One change might require the adjustment of a directional antenna to improve signal strength. Another adjustment might be filtering unnecessary packets to disallow passage into the wireless link. This type of fine-tuning is intuitive and one can determine actions, based upon statistics found in the following pages.

890-007 Rev. A 01/28/99

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© 1999 RadioLAN, Inc.

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RadioLAN Campus BridgeLINK manual Interrogating the System for Performance Information

Contents

Wireless Local Area Network Campus BridgeLINK User Guide FCC Remarks Disclaimer Manual Conventions Trademark DisclosuresInstalling the CPU Using the Campus BridgeLINK Manager Recording Important System Information Getting Technical Support 120 890-007 Rev. a 01/28/99 Introduction 890-007 Rev. a 01/28/99 Campus BridgeLINK Processor Unit CPU LED IndicatorsCampus BridgeLINK System MDI/MDI-X Switch Local Port Jack 10BaseT LED Indicators10BaseT Port Jack Mounting Bracket CRM PortCRM Companion Radio Module Companion Radio Module CRMDirectional Antenna Power TransformerLow-Loss RF Cable Antenna CableTypical Campus BridgeLINK Application Typical Campus BridgeLINK ApplicationLinking Networks in Two Locations Determining the Distance between BuildingsQuick Configuration Initial IP Address SetupTemporarily Connect the CPU Configuration Disk Using the IP Assign Utility to Assign the CPU’s IP AddressTools You Will Need Installing the CPULocating the CPU Locating the CPU Closely to Network, Power, and the AntennaMounting the CPU Connecting the Antenna Cable to CRMInserting the CRM into the Bracket Marking Screw Locations Connecting the NetworkAcceptable Ground Source Grounding ConsiderationsAttaching the Directional to a Typical Mount Brief Word About SafetyMinimum Height from Ground Choosing the Best Mounting HeightTools You Will Need Adjusting the Antenna’s DirectionSighting Each Campus BridgeLINK Antenna Eyeball the Direction Sighting ProcedurePower Connection Sequence Apply Power to the CPUDual Remote Management Html and Snmp Adding Security to the Wireless NetworkLocal Management Browser Requirements System RequirementsCPU Web Site Using the Campus BridgeLINK ManagerLogging onto Campus BridgeLINK Manager Browsing the Network for the CPUEnter User Name Enter PasswordProduct ID Campus BridgeLINK Manager Main Menu Campus BridgeLINK Manager Site LayoutCampus BridgeLINK Manager Main ∙ Explicit Address check box Aiming the Directional AntennasStart button Save Distance Parameter buttonSetting the Estimated Distance between Antennas Setting the Frame SizeSelecting the Distant CPU’s Address Starting and Stopping the TestUser Logon Name Fields Setting Up Security FeaturesSetting Up Snmp Capabilities Reload Administration ParametersUse Default System Location System NameSystem Contact IP Parameters IP ParametersSubnet Mask Default Gateway IP AddressIP Address Acquire System IP Only DisabledDhcp Support Dhcp Server IP Address Acquire IP and Download System SoftwareAcquire IP, Download System Software and Save it Authentication Trap check User AuthenticationSnmp Parameters Cold StartWrite Community Enable Authentication TrapRead Community Configure Snmp Host Configuring Snmp Managers for the CPUDirecting the System Log to Manager Stations Setting Access Rights for Snmp ManagersDirecting Traps to Manager Stations Point-to-Point Mode Setting the CPU’s Mode of OperationEncryption Key and Retype Encryption Key Fields ∙ Encryption Key field Data Encryption Enabled Check BoxSecuring the CPU with Data Encryption Bridging the Link and 10BaseT Networks Getting to the Port Parameters Menu MAC Address Filter 10BaseT Port ParametersBlock IP Packets Edit ButtonBlock NetBEUI Packets Block NetBIOS PacketsBlock IPX Packets Radio Port Parameters Subnet ID Port NameConsole Parameters Setting the Baud Rate for the Local PortManaging Packet Flow Through the CPU MAC Address Source/Dest Mask BytesAdding MAC Filters Accept/RejectDeleting MAC Filters Modifying MAC FiltersBridging Networks Spanning Tree ParametersBridge Priority 0-65,535 Hello Time Forward Delay TimeMax. Age Time Port Path Cost 1-65,535 Port PriorityInterrogating the System for Performance Information 10BaseT Port Statistics Checking 10BaseT Port StatisticsCRC Error Packets Total Error PacketsCollision Error Packets Total Packets TransmittedRunt Packets Overrun PacketsRadio Port Statistics Checking Radio Port Wireless Link StatisticsAverage Transmit Rate Packets/Sec Packet TransmissionAverage Receive Rate Packets/Sec Total RetransmissionPacket Reception Upgrading System Software Software Upgrade from fileSystem Software Filename Download Button Tftp Server IP AddressConfiguration Changes Saving or Rejecting Configuration Setting ChangesReset Configuration to Factory Default Save All Changes and ResetReload Last Saved Configuration Reset Resetting the CPURecording Important System Information Boot Software Version Default Gateway IP AddressProduct Name System Name890-007 Rev. a 01/28/99 Viewing the System Log Error MessageTask Time SecManaging the CPU Locally Serial Port Adapter Cable Pin-outs Signal Description DB-9F RJ11Hot Keys CPU Local ManagementLogon Menu Logging onto the CPU Configuration ScreenSerial Number Node Discovery Using the Main MenuSystem Features Diagnostics System ConfigurationSystem Statistics System StatusAdministration Parameters Working with the System Configuration MenuPort Parameters IP ParametersSpanning Tree Parameters Snmp Parameters Software Upgrade Parameters Selecting this itemConfiguration Changes Access SecuritySystem Operation Mode Data EncryptionUser Password Configuration Manager Menu ItemsMenu Name Menu Item Refer to User Logon NameSystem Location Menu Name Menu Item Refer to System ContactIP Address Subnet MaskDhcp Operation Mode Menu Name Menu Item Refer to Default Gateway IPAddress Dhcp Server IP Address Dhcp Server IP Address onEnable Trap Receiving Managing Host AccessManaging Host IP Address RightAdd this Managing Host Point-to-Point ModeReceiving 10BaseT Port Parameters Data Encryption Enabled CheckMenu Radio Port Parameters MenuBlock MAC Packets Block NetBIOS PacketsEdit MAC Filters Block IP PacketsList all Filters Configured Packet When SatisfiedSource or Destination Address FilteringMax. Age Time Forward Delay TimePort Priority Port Path Cost 1-65,535Tftp Server IP Address Tftp Server IP Address on Download ModeMenu Name Menu Item Refer to System Software Filename Save All ConfigurationPerform Download ChangesReset All Configuration ConfigurationsPing Destination Ping Frame SizeWorst Menu Name Menu Item Refer to BestPerform Ping System InformationProblem No traffic for anyone IndicatorsProblem Retransmissions are excessive Problem Radio Range seems less than it should beGlossary Access Point Agent Client Station Dhcp ServerDomain Gateway IP Address MAC Address Manager Routing Subnet Mask NodePackets Power LED IndicatorsFault LED 10BaseT Port LEDsStatus LEDs MDI/MDI-X Switch10BaseT connector ConnectorsSerial Port Connector Standards Support Electrical SpecificationsNetwork Protocol Environmental Specifications Physical SpecificationsDimensions WeightElectromagnetic Emissions Safety Agency ApprovalsGetting Technical Support Index 890-007 Rev. a 01/28/99 890-007 Rev. a 01/28/99 890-007 Rev. a 01/28/99 890-007 Rev. a 01/28/99 890-007 Rev. a 01/28/99 890-007 Rev. a 01/28/99 890-007 Rev. a 01/28/99 890-007 Rev. a 01/28/99 890-007 Rev. a 01/28/99 890-007 Rev. a 01/28/99 890-007 Rev. a 01/28/99 890-007 Rev. a 01/28/99 890-007 Rev. a 01/28/99 890-007 Rev. a 01/28/99 RadioLAN