Asante Technologies 1012 manual Redundant bridging

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About Bridging

Figure 2-3 Redundant bridging

Internal bridge software will automatically designate one bridge as the “active” bridge and the other bridge as the “standby” or blocking bridge, preventing multiple transmissions of the same packet by both bridges.

This software implements what is called a spanning tree algo- rithm and is commonly used in the configuration shown in Figure 2-3.

The two bridges talk to each other periodically, checking each other’s status. If the active bridge goes down or the link between it and either segment is lost, the standby bridge automatically (after a short time period) reconfigures itself as the active bridge, and inter-segment transmissions will continue normally.

For a complete description of all spanning tree configuration parameters, see Chapter 3, “AsantéBridge 1012

Local Management.”

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Contents AsantéBridge Users’ Guide Trademarks Tell Us What You Think Page Table of Contents Setting Up Out-of-Band Links Configuring a Redundant LinkConnecting a VT100 Terminal Default Settings AsantéBridge 1012 Local ManagementList of Figures Figure C-4 Crossover RJ-45 Cable page C-4 Introduction Introduction About ThisManual Intended Audience Intended Audience Conventions Used In This ManualTechnical Support Tell Us What You ThinkQuick Start Quick Start Before YouStart Introducing the AsantéBridge Introducing AsantéBridgeBridging Between Two Segments Snmp AsantéBridge FeaturesFront Panel Quick ViewAsantéBridge Quick View Bridge External Port Status LED RJ45 Port ConnectorsBridge Spanning Tree Status LEDs Bridge Hub Port Status LEDs3in1 Port RJ21 Port ConnectorAsantéBridge 1012 Rear Panel Bridge External Port AUI Through/End DIP SwitchBridge External Port Link/Receive LED Bridge External Port Collision LEDAC Power Connector PC/Terminal DIP SwitchOn/Off Switch FanFlashing Interpreting LEDsInstalling the AsantéBridge Installing AsantéBridge 1012Preparing for the Installation Unpacking the AsantéBridge Basic Installation ProceduresTools Asante´Hub Positioning the AsantéBridgeRack-mounting the AsantéBridge Page Dividing the Network into Segments Connecting Two Segments to the AsantéBridgeAbout Spanning Trees Shown belowWhat You Need Connecting Devices to the AsantéBridgeUsing the front panel RJ45 ports Configuration Options Using the rear panel RJ21 connectorQuick Start Connecting to the Network Before You Start Connecting to the NetworkAbout Bridging About BridgingBridging between segments Simple Transparent BridgeAbout Bridging Like this Spanning TreeRedundant bridging Connecting to the BNC Port Using the 3in1 PortInterconnecting Hubs on Thin Ethernet Backbone Using the 3in1 PortInterconnecting Using Foirl Fiber Optic Inter-Repeater Link Connecting to the AUI PortInterconnecting to Thick Ethernet Backbone Connecting to the RJ45 in and Out Ports Connecting an In-Band Daisychaining 10BaseT Configuring a Redundant LinkChecking the Link An Example Configuration Configuring a Redundant LinkIf a Link Goes Down to the Main Hub If the Main Hub Goes DownInterconnecting Hubs Setting Up Out-of-Band LinksSetting Up Out-of-Band Links 10 Connecting the Asanté Management Station for Out-of-Band Distance Restrictions Recommended MethodThrough/End Switch Configuring Hub DIP SwitchesPC/Terminal Switch Connecting a VT100 Terminal Connecting a VT100 TerminalLists the factory default settings Default SettingsAsantéBridge 1012 Local Management AsantéBridge 1012 Local Management These functions, use the following flow chartBridge Diagnostics Bridge DiagnosticsLocal Management Main Menu Local ManagementLocal Management Menu System Local Management Help Window General Help MenuConfiguration Menu System Accessing the Configuration Menu systemConfiguration Menu System Reset System item is a command. Selecting this item Information Menu SystemPassword Menu Password MenuBridge Snmp agent menu has the following four submenus Snmp AgentParameters Menu System TCP/IP Parameters Menu TCP/IP Parameters MenuSoftware Update Menu Software Update MenuAbout the Software Update function Configuration Menu System Menu without taking any action 10 System Update Status WindowConfiguration Menu System 11 Snmp Trap Receiver Table Snmp Trap Receiver Table12 Snmp Community Name Table Snmp Community Name TableThis table allows you to control access to Snmp MIB objects 13 Out-of-Band Parameters Menu Out-of-Band Parameters MenuEnter control-z to return to the Configuration Menu 14 Bridge Parameters Menu Bridge Parameters Menu System15 Spanning Tree Bridge Parameters Menu Spanning Tree Bridge Parameters MenuActivity.To update the window, enter control-r 16 Spanning Tree Port Setting Menu Spanning Tree Port Setting MenuAbout Forwarding Bridge Forwarding TableExit returns you to the Bridge Parameters Menu About dynamic and static table entries Alphabetic portion of the field defines the type of entryAsantéBridge 1012 Local Management 18 Editing the Forwarding Table Using the Edit Function19 Searching for an Address Using the Search FunctionAbout the Filtering Table Bridge Filtering Table20 Bridge Filtering Table Configuration Menu System 21 Resetting the Bridge Resetting the BridgeMenu 22 Bridge Statistics Statistics Menu SystemSupport for Pre 10BaseT Devices Appendix a Support for Pre 10BaseT Devices Technical Specifications Appendix B Technical Specifications B-3 B-4 Pinouts and Cable Specifications RJ-45 to RJ-21 Pinouts Amphenol to Modular Jack Appendix C Pinouts and Cable SpecificationsC-3 RJ-45 to RJ-45 Crossover Cable RJ-45 Modular Jack to Wall Jack PinoutsTable C-1 AUI Pinouts AUI DB-15 PinoutsC-6 AsantéBridge 1012 Index LED Numerics Manual P/N
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