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Olicom 8605 Important Management Considerations, Star-Wired Topology of Interconnected Switches

Models: 8605 8600

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Important Management Considerations

A star-wired topology (see Figure 13) helps determine problems in a network because no single cable carries all of the traffic on the network. However, serial connections could reduce network reliability since each connecting cable and switch could potentially divide the network should a failure occur.

If you create parallel paths directly between switches, be sure you have enabled spanning tree protocol (the default setting for spanning tree protocol is no or disabled). Parallel paths create endless loops that cause unsatisfactory network operation unless you configure the switch for spanning tree capability. The spanning tree algorithm disconnects loops in networks using the transparent bridging algorithm or the SRT algorithm, and will block a port of one of the switches in the parallel paths. If the port in the primary path fails, the port that has been blocked will change automatically to the forwarding state, keeping the network operational.

CrossFire TOKEN-RING SWITCH OC-8600

CrossFire TOKEN-RING SWITCH OC-8600

CrossFire TOKEN-RING SWITCH OC-8600

CrossFire TOKEN-RING SWITCH OC-8600

CrossFire TOKEN-RING SWITCH OC-8600

CrossFire TOKEN-RING SWITCH OC-8600

CrossFire TOKEN-RING SWITCH OC-8600

CrossFire TOKEN-RING SWITCH OC-8600

CrossFire TOKEN-RING SWITCH OC-8600

Figure 13. Star-Wired Topology of Interconnected Switches

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CrossFire 8600/8605 Token-Ring Switches v. 1.2, P/N: 710001641

Preparing for Installation

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Olicom 8605, 8600 manual Important Management Considerations, Star-Wired Topology of Interconnected Switches

Contents

CrossFireTM 8600/8605 Token-Ring Switches Page CrossFireTM 8600/8605 Token-Ring Switches Trademarks Modifications Iii CrossFire 8600/8605 Token-Ring Switches v .2, P/N Table of Contents Installation Preparing for InstallationConnecting a Network Management Console Switch Configuration Vii Monitoring the Network with the Console 145 Viii Monitoring the Network with Snmp 183 Monitoring Port Traffic 193 Troubleshooting 195Getting in Touch with Technical Support 201 CrossFire 8600/8605 Token-Ring Switches v .2, P/N Connecting using Building Wiring List of Figures List of Tables Xii About this Manual Xiii Xiv Overview and Specifications Switching Technology Switch of Switches Switch of Hubs Switch of ServersSwitch of Desktops Switch of Floors and Buildings Switch of Routers Physical Characteristics Out-of-Band Management OBM Switched Port Analyzer Token-Ring Ports System Request Button Reset ButtonUniversal Expansion Slots and Modules Labels Status and Activity LEDs State Meaning On or Features Features and SpecificationsPerformance and Advanced Features Management InstallationScalability and High Availability Specifications Capacity Physical Characteristics Performance Safety Specification Value Operating TemperatureNon-operating Temperature Software updates Specification Value Network management Tivoli TME 10 NetView for AIX CrossFire 8600/8605 Token-Ring Switches v .2, P/N Switch Theory of Operation How the CrossFire 8600 and the CrossFire 8605 Works Multiple Simultaneous Conversations Low Latency Address Management Multiple Bridging Modes Source Route Bridging SRB Source Route Switching SRSSource Route Transparent SRT Filtering SRT/SRB Cut-Through Three Switching ModesCongestion Control Store and Forward Token-Ring Port Operation Modes RI/RO-Like Connection CrossLink Connections Transmission Priority QueuesSpanning Tree Protocol Support Switch Configured with Two VLANs Vlan Support Specification Management Telnet Management and VT100 Management Console Switch Manager for HP OpenView for WindowsRmon Support IBM LAN Network Manager Built-in Port Counters Back-to-Back Optional Redundant Power SupplyStackable Architecture Internal Stacker CrossFire 8600/8605 Token-Ring Switches v .2, P/N Benefits of the CrossFire 8600 and the CrossFire Token-Ring Port Operation Modes Mode Feature Function Benefit Automatic portSensing of operating Automatic media Store and Forward Three Switching ModesFeature Function Benefit Cut-Through Auto Expansion Module Slots Multiple Bridging Modes Feature Function Benefit Ieee 802.1D Spanning Tree Protocol HP OpenView for Feature Function BenefitVlan support Windows Network Monitoring Logical Link Feature Function Benefit MAC addressFiltering Control LLC Connectivity Options CrossFire 8600/8605 Token-Ring Switches v .2, P/N Safety Recommendations Safety with Electricity CrossFire 8600/8605 Token-Ring Switches v .2, P/N Preventing Electrostatic Discharge Damage Site Requirements Chassis AccessibilityPower Environment CrossFire 8600/8605 Token-Ring Switches v .2, P/N Unpacking and Inspecting Frame Length Limit Rules to RememberCables and Distances between Devices Sample Applications for the CrossFire 8600 and the CrossFire Simple Application of the Switch Typical Network without the CrossFire Switches Next Step Replacing SRBs with CrossFire 8600 or CrossFire Star-Wired Topology of Interconnected Switches Important Management Considerations Installation Required Network Preparation Frame Length Limit Installation Summary Materials Needed for Installation Unpacking Instructions Installing a Universal Expansion Module Removing the Universal Expansion Slot Cover Mounting the Chassis Rack or Cabinet Mounting Mounting the Switch in a Rack or Cabinet Table-Mounting Connecting Devices to the Token-Ring Ports Cabling Connecting Devices to Token-Ring Ports Checking the Installation Connecting using Building Wiring Applying Power Back Panel of the SwitchPage Front Panel Connectors and Push-ButtonsControl Panels Name Description Status LEDs Back Panel Connecting a Network Management Console Connecting the Console Specification Value XON/XOFF Disable the Use Function, Arrow, Communication ProblemsCtrl Keys for Windows option located Diagnostic Screen Press Return key to activate console CrossFire 8600/8605 Token-Ring Switches v .2, P/N Switch Configuration General Guidelines Navigating within the Menus Main Menu Configuration Menu Password Port ConfigurationSwitched Port Analyzer Console Configuration System Description Switch Configuration ScreenConfigured MAC Address Burned-in MAC Address Switch reserves 31 addresses for ports Address Format Dram InstalledFlash Memory Installed System Name Number of Boxes Stack Configuration ScreenTime of Day Local Box Number Module Information Screen Board ID StatusModel HW Rev Vlan Configuration Switch with four VLANs Vlan Configuration Menu Local Vlan Port Configuration Vlan Configuration Screen Change Vlan Parameter Configuration for TrCRF ScreenAdd Delete Parent Vlan Bridging ModeVlan Name State Vlan Parameter Configuration for TrBRF Screen MTU Local Vlan Port Configuration Screen Interface MAC Address IP Configuration ScreenDefault Gateway IP Address IP State Send Ping BootP Requests and Parameters Snmp Configuration Menu Spanning Tree Protocol Ieee 802.1D Spanning Tree Protocol STP Spanning Tree for TrBRF Screen STP Participation Bridge Priority Bridge Forward Delay in Seconds100 Ieee STP Uses Bridge Functional Address Bridge Hello Time in Seconds 101 STP Mode TrBRF to TrCRFSpanning Tree for TrCRF Screen STP Priority Switch Maximum Message Age in Seconds Switch PrioritySwitch Hello Time in Seconds Switch Forward Delay in Seconds Port Spanning Tree Parameters Port Spanning Tree Parameters Screen103 Priority 104 STP Mode Current Spanning Tree Information Screen 105 Port Configuration ScreenEnabled Name Media Speed 106 StatusMedia Type Max Explorer Rate on Input Forwarding Mode 107 Operation ModePriority Threshold Error Sampling Interval Error High ThresholdError Low Threshold 108 Min Transmit Priority CrossLink Switched Port Analyzer Menu109 110 CrossLink Menu 111 CrossLink Configuration Screen Setting up a CrossLink 113 Current CrossLink Information Screen 114 Address Filtering 115 Filters and Port Security Menu Index Configure Filters Screen117 MAC Address Applied Ports 118Exit Ports Configure Port Security Mode Screen 119 120 View Port Filters ScreenDescription 121 More Port number Security ModeProtocol Filters Menu Protocol Class Assignment Class Protocol Class Assignment Screen122 Ethertype 123 Port Filtering Attributes ScreenBlock 124 Ethertype Set at the Port Address Table Aging menu Address Aging125 Set at the Master Address Table Aging menu 126 Configuration menuAddress Aging Menu Port Address Table Aging Aging Time min Port Address Table Aging Screen127 Demand Aging Level 128 Master Address Table Aging ScreenAging Time Delete Password Password MenuSet Password 129 Console Configuration Menu Console/Telnet Sessions Serial Link Configuration Screen Stopping the Console Session Creating a Console Session Using a Modem132 Telnet Configuration Screen Box Telnet Sessions Screen134 Telnet Sessions Remote Involuntary Termination of the Telnet Session Starting the Telnet SessionStopping the Telnet Session 135 136 Serial Link Download Download/Upload Menu137 Tftp Download/Upload 138 Serial Link Download ScreenSelect Serial Link Download Select Main Image Download Tftp Server Address Tftp Download/Upload Screen139 Download Vlan Execute name Download/Upload 141 Reset Switch With Diagnostics Reset ScreenNumber of Resets Since Diagnostics Reset Switch Without Diagnostics Power-On Diagnostics 143 Reset Port Address TableClear Non-Volatile RAM 144 Monitoring the Network with the Console 145 Navigating Within the Menus 146 Statistics Menu Message Log Information Switch Statistics Screen148 Diagnostic Test Results Display Summary Error Frames Received 149 Board TemperatureFrame Transmit Errors Reset Ins Port Status Screen150 Spd 151 Oper Mode Fwd Mode Port Statistics Menu General Statistics Screen Frames Unknown Frame Errors154 Frames Processed Broadcast Frames Received 155 Receive Buffer Overflows Config LossConfig Loss Reason Transmit Buffer Overflows Burst Errors Last ResetLine Errors Statistics Screen Internal Errors 157 AC ErrorsAbort Transmit Errors Lost Frame Errors Recoveries 158 Hard ErrorsSignal Loss Lobe Wires Ring Status State Information Screen159 Ring State DTR MAC Information Menu 161 Station-CPort Information Error Report TimerTXI Information Screen Authorized Function Classes Beacon Source Address 162 Join StateMonitor State Beacon UNA Station-CPort Information Screen 164 CPort Phantom Drive Mask Common Access Protocol MaskCommon Policy Flags Address Tables Menu 166 Master Address Table ScreenAddress 167 Unknown Search Master Route Descriptor Table Screen168 Ports Route hex 169 Type Vlan Address Table screen 170 Vlan Route Descriptor Table Screen 171 Root ID 172Bridge ID Root CRF PId Forward Delay173 Max Message Age PCst Dsg PId 174 DCstDsg SwId/BrId # Chgs 175 Current Spanning Tree Information for a TrCRF ScreenRoot Port 176 Max Message Age 177 Vlan Statistics Screen for TrCRF Vlan Statistics178 179 Vlan Statistics Screen for TrBRFDisplay Members Diagnostic Test Results Screen 180 Message Log Information Screen Display Summary Screen 182 Clear 183 Snmp SetupCommunity String screen Trap Receiver screen Send Authentication Traps Snmp ConfigurationSnmp Configuration Screen Enable Rmon Statistics 185 Community Strings Community Strings ScreenTrap Receivers 186 Community Name Trap Receivers Screen 187 Zoom List of Supported Traps from a Switch188 Add Entry General traps Enterprise specific traps from OC8600.MIB 189Per Port Traps 190 Traps for the Spanning Tree Protocol 191 Traps for CrossLinks Oc8600TsCrossLinkFailed 192 Active Monitoring 193Passive Monitoring Port To Monitor 194Port Number Select Then Troubleshooting in a Network Obtaining ServiceStart of Troubleshooting Process Procedure a Choosing a Troubleshooting ProcedureSymptom and LED State Go To 196 197 Procedure B Procedure C 198 Procedure D 199 200 Hotline Support Before You Contact Olicom Technical Support201 Standard Modem Requirements Bulletin Board ServiceFax Support Isdn Modem Internet World Wide Web Server WWW Internet E-MailAnonymous Internet FTP Server Olicom Support WEB Switch Configuration Problem Report FormSwitch Information 204 Problem Description Network Installation Sketch 205 206 Appendix A. Abbreviations 207 208 Mbps TrBRF 209TrCRF 210 Cable Function Cable Type or Cable Solution Connecting to the Out-of-Band Management Port211 212 Pin Signal NameOut-of-Band Management Port and Cable Pin-Outs Management Port Pin-Out TIA/EIA 232 Null-Modem Cable for the 25-pin Connector 213 TIA/EIA 232 Null-Modem Connections 214 Ohm IBM STP Data Connector-to-RJ-45 Straight-Through CableTwisted-Pair Cable Pin Outs Straight-Through 100-Ohm/120-Ohm Cable Cable Type Impedance Cabling Recommendations215 Cable Type 216 Number Of Attaching Devices Ring Types Speed CrossFire 8600 Token-Ring Switch217 Ring Speed Ohm Type Ohm Category Ring Speed 100 or 120 Ohm Category CrossFire 8605 Token-Ring Fiber Switch218 Ring Speed 62.5/125 µm 219 220 Index Numerics Index-2 119 Index-3 116 Index-4 207 203 Index-5 MMF Index-6 131 162 Index-7 Index-8 Index-9 170 Index-10 Index-11 Index-12 Page Olicom Australia