RadioLAN Campus BridgeLINK specification

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 Disclosures Installing 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 Port CRM Companion Radio Module Companion Radio Module CRM Directional Antenna Power Transformer Low-Loss RF Cable Antenna Cable Typical Campus BridgeLINK Application Typical Campus BridgeLINK Application Linking Networks in Two Locations Determining the Distance between Buildings Quick Configuration Initial IP Address Setup Temporarily Connect the CPU Configuration Disk Using the IP Assign Utility to Assign the CPU’s IP Address Tools You Will Need Installing the CPU Locating the CPU Locating the CPU Closely to Network, Power, and the Antenna Mounting the CPU Connecting the Antenna Cable to CRM Inserting the CRM into the Bracket Marking Screw Locations Connecting the Network Acceptable Ground Source Grounding Considerations Attaching the Directional to a Typical Mount Brief Word About Safety Minimum Height from Ground Choosing the Best Mounting Height Tools You Will Need Adjusting the Antenna’s DirectionSighting Each Campus BridgeLINK Antenna Eyeball the Direction Sighting Procedure Power Connection Sequence Apply Power to the CPU Dual Remote Management Html and Snmp Adding Security to the Wireless NetworkLocal Management Browser Requirements System Requirements CPU Web Site Using the Campus BridgeLINK Manager Logging onto Campus BridgeLINK Manager Browsing the Network for the CPU Enter User Name Enter PasswordProduct ID Campus BridgeLINK Manager Main Menu Campus BridgeLINK Manager Site Layout Campus BridgeLINK Manager Main ∙ Explicit Address check box Aiming the Directional AntennasStart button Save Distance Parameter button Setting the Estimated Distance between Antennas Setting the Frame SizeSelecting the Distant CPU’s Address Starting and Stopping the Test User Logon Name Fields Setting Up Security Features Setting Up Snmp Capabilities Reload Administration ParametersUse Default System Location System NameSystem Contact IP Parameters IP Parameters Subnet 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 Start Write Community Enable Authentication TrapRead Community Configure Snmp Host Configuring Snmp Managers for the CPU Directing 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 Operation Encryption 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 Parameters Block IP Packets Edit Button Block NetBEUI Packets Block NetBIOS PacketsBlock IPX Packets Radio Port Parameters Subnet ID Port Name Console Parameters Setting the Baud Rate for the Local Port Managing Packet Flow Through the CPU MAC Address Source/Dest Mask Bytes Adding MAC Filters Accept/Reject Deleting MAC Filters Modifying MAC Filters Bridging Networks Spanning Tree Parameters Bridge Priority 0-65,535 Hello Time Forward Delay Time Max. Age Time Port Path Cost 1-65,535 Port Priority Interrogating the System for Performance Information 10BaseT Port Statistics Checking 10BaseT Port Statistics CRC Error Packets Total Error PacketsCollision Error Packets Total Packets Transmitted Runt Packets Overrun Packets Radio Port Statistics Checking Radio Port Wireless Link Statistics Average Transmit Rate Packets/Sec Packet Transmission Average Receive Rate Packets/Sec Total RetransmissionPacket Reception Upgrading System Software Software Upgrade from file System Software Filename Download Button Tftp Server IP Address Configuration Changes Saving or Rejecting Configuration Setting Changes Reset Configuration to Factory Default Save All Changes and ResetReload Last Saved Configuration Reset Resetting the CPU Recording Important System Information Boot Software Version Default Gateway IP AddressProduct Name System Name 890-007 Rev. a 01/28/99 Viewing the System Log Error MessageTask Time Sec Managing the CPU Locally Serial Port Adapter Cable Pin-outs Signal Description DB-9F RJ11 Hot Keys CPU Local Management Logon Menu Logging onto the CPU Configuration Screen Serial Number Node Discovery Using the Main MenuSystem Features Diagnostics System ConfigurationSystem Statistics System Status Administration Parameters Working with the System Configuration Menu Port Parameters IP ParametersSpanning Tree Parameters Snmp Parameters Software Upgrade Parameters Selecting this item Configuration Changes Access SecuritySystem Operation Mode Data Encryption User Password Configuration Manager Menu ItemsMenu Name Menu Item Refer to User Logon Name System Location Menu Name Menu Item Refer to System ContactIP Address Subnet Mask Dhcp Operation Mode Menu Name Menu Item Refer to Default Gateway IPAddress Dhcp Server IP Address Dhcp Server IP Address on Enable Trap Receiving Managing Host AccessManaging Host IP Address Right Add this Managing Host Point-to-Point ModeReceiving 10BaseT Port Parameters Data Encryption Enabled CheckMenu Radio Port Parameters Menu Block MAC Packets Block NetBIOS PacketsEdit MAC Filters Block IP Packets List all Filters Configured Packet When SatisfiedSource or Destination Address Filtering Max. Age Time Forward Delay TimePort Priority Port Path Cost 1-65,535 Tftp Server IP Address Tftp Server IP Address on Download Mode Menu Name Menu Item Refer to System Software Filename Save All ConfigurationPerform Download Changes Reset All Configuration ConfigurationsPing Destination Ping Frame Size Worst Menu Name Menu Item Refer to BestPerform Ping System Information Problem No traffic for anyone Indicators Problem Retransmissions are excessive Problem Radio Range seems less than it should be Glossary Access Point Agent Client Station Dhcp Server Domain Gateway IP Address MAC Address Manager Routing Subnet Mask NodePackets Power LED IndicatorsFault LED 10BaseT Port LEDs Status LEDs MDI/MDI-X Switch 10BaseT connector Connectors Serial Port Connector Standards Support Electrical SpecificationsNetwork Protocol Environmental Specifications Physical SpecificationsDimensions Weight Electromagnetic Emissions Safety Agency Approvals Getting 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