Bridge Level, Bridge Priority | Cabletron Systems 2.2 specs

Bridging

Figure 2-10. Bridge Spanning Tree Window

The Bridge Spanning Tree window displays STA parameters and allows you to alter parameters for the device bridge as a whole, and for each individual bridging interface.

The values displayed apply to the currently-selected bridging interface, highlighted in the lower right quadrant of the window. To view or alter the parameters of another interface, click on the appropriate Port X name listed in the quadrant.

Bridge Level

Bridge Priority

This Þeld displays the ÒpriorityÓ component of the deviceÕs unique bridge identiÞer. The Spanning Tree Algorithm assigns each bridge a unique identiÞer, which is derived from the bridgeÕs MAC address and the Priority. The bridge with the lowest value of bridge identiÞer is selected as the Root. A lower priority number indicates a higher priority; a higher priority enhances a bridgeÕs chance of being selected as the Root.

You can edit this text box to change network topology, if needed. The default value is 8000; the range is 0ÑFFFF hexadecimal.

Spanning Tree

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Cabletron Systems 2.2 manual Bridge Level, Bridge Priority

Contents

Bridge/Router Interface Brim User’s Guide Page Virus Disclaimer Restricted Rights Notice Contents Contents Chapter WAN Applications Chapter Fddi ApplicationsChapter ATM Conﬁguration Index Contents Introduction BRIM-E100 Using the Brim User’s Guide Brim Management Applications Related Manuals Software Conventions Using the Mouse Left Mouse Button Right Mouse Button Device Name Common Device Window FieldsIP Address Location Using Window Buttons Getting Help Using On-line HelpAccessing On-line Documentation Hours a day, 365 days a year Getting Help from the Cabletron Systems Global Call Center Introduction Getting Help About Transparent Bridging Bridging Basics Bridging About Source Route Bridging About Source Route-Transparent Bridges About Source Route-Translational Bridges Viewing and Managing Bridging Interfaces Bridging Bridge Status Window Up Time Bridge Status Window Bridge State on Interface Accessing Bridge Status Window OptionsInterface Type Bridge Address Bridging Bridging Bridging Bridging Enabling and Disabling Individual Interfaces Enabling and Disabling All Installed InterfacesEnabling and Disabling Bridging Performance Graphs Bridge Statistics Bridging Frames Forwarded Green Errors RedFiltered Magenta Xmitted Blue Bridge Detail Breakdown Frames Forwarded ErrorsFiltered Xmitted Forwarded from Interface StatisticsForwarded to Type DescriptionAddress Unicast ErrorNon-Unicast Discarded Csmacd Statistics Receive Errors Transmission Errors PPP Link Statistics Collision Errors Errors Statistics Dot5 Errors Burst Errors Line Errors Congestion Errors Internal ErrorsToken Errors Soft Errors Source Route Statistics Received Frames Discards Transmitted Frames Spanning Tree Bridge Priority Bridge Level Root Cost Root BridgeRoot Port Protocol Bridge Port Level Designated Cost Path CostDesignated Root Designated Bridge Changing the Spanning Tree Algorithm Protocol Type Conﬁguring Spanning TreeChanging Bridge Priority Changing Max Age Time Changing Forwarding Delay TimeChanging Hello Time Changing Path Cost Filtering DatabaseChanging Port Priority Bridging 11. The Filtering Database Window Number ListCapacity Aging Time Altering the Aging Time Conﬁguring the Filtering DatabasePort Filtering Changing the Receive Port Changing the Type of EntryChanging the Port Filtering Action Adding or Deleting Individual Entries Clearing All Permanent, Static, or Dynamic Entries Special Filter Databases Ethernet and Token Ring Special Filter Database Windows File EnableSpecial Filter Database Window Source Address Destination AddressData Type Data Offset Deﬁning and Editing Filters in the Special Database Changing the Port Filtering Action Setting the Port Filtering ActionChanging the Receive Ports Clearing the Port Filtering Action Enabling and Disabling a FilterSaving a Set of Filters to a File Interface Conﬁguration Source Routing Bridge MethodsTransparent NetBIOS Setting the Bridge MethodProtocol Transmission Methods Source Route Transparent 16. Source Route ConÞguration Window Source Route Conﬁguration Source Route Conﬁguration Source Routing Information Subnet Mask Target Segment Local SegmentHop Count Limit Spanning Tree Expl Bridge Number Spanning Tree Mode Making and Setting Changes Using the Find Source Address Feature Using the Port Source Addresses Window Setting the Aging Time Using the Token Ring Bridge and Port Conﬁguration Windows Bridging Ring Number Virtual Ring Number Novell Translation Port ModeRing Speed Bridge Mode/Explorer Type Source Route/STE Duplex Modes Full Duplex Duplex Modes WindowInterface Ethernet Port Conﬁguration Setting the Duplex Mode Fast Ethernet Port Conﬁguration Standard Mode Bridging Desired Operational Mode Current Operational ModePort Type Link State Setting the Operational Mode for the FE-100TX SONET/SDH Conﬁguration Setting the Operational Mode for the FE-100FXSonet Port Conﬁguration Sonet SONET/SDH Statistics Bridging 26. The SONET/SDH Statistics Window Errors Statistics Bridging 27. The SmartTrunk ConÞguration and Status Window Conﬁguring SmartTrunking Name PortMode SmartTrunk State Bridging Conﬁguring Broadcast Suppression Token Ring Bridge Mode Setting Token Ring Bridge Mode Setting Bridge Translation 32. Bridge Translation Window Enabling and Disabling Auto and Dual Translate Modes Conﬁguring Novell Token Ring Packet Translation Conﬁguring Token Ring Packet Translation IBM Translation Table State Index Conﬁguring Snap Translation Snap Translation Table Using the Novell Translation Window Bridging Ethernet Port Physical View Using the Physical View Windows for the Etwmim Epim Type Active Port 41. Token Ring Port Physical View Token Ring Port Physical View FNB State Ring State Active Monitor Bridging 104 Using the Physical View Windows for the Etwmim Fddi Applications Conﬁguration Window Accessing the Fddi Menu MAC State Req. Requested Target Token Rotation Time SMT VersionNeg. Negotiated Concentrator M Ports Concentrator Non-M Ports Connection Policy WindowNumber of MACs MAC Path Connection Policy Window 15 32,768 Ð a permanently set value for this bit Number of Nodes Address ModeStation List Window Upstream Neighbor Node Class Receive Frames Fddi Performance WindowTransmit Frames Ring Ops Setting the Time IntervalFrame Errors Fddi Applications Fddi Performance Window WAN Applications Accessing the WAN Status Windows Current Primary Viewing WAN Interface StatusCurrent Active Desired Primary Conﬁguring the Synchronous Connection Outspeed InspeedClock Source State Change WAN Port Name Conﬁguring T-1 PortsLine Type Line Coding Signal Mode Loopback ModeCircuit ID Xmt Clock Source Interface LineCoding Using the T1 FracTable Conﬁguration Window Conﬁguring the Fractional Table ChannelsMax Bandwidth Changing the Interface Line Coding Restoring a Fractional Table Compression Displaying the WAN Logical View CRC Length Changing WAN Logical Settings Operational Status Viewing the WAN Port Admin/StatusSynchronous Admin/Status Admin Status T1 Admin/StatusOper and Admin WAN Interfaces Frame Check Displaying Synchronous Port StatisticsEnabling and Disabling WAN T1 Interfaces Xmit UnderRuns Total ErrorsReceive OverRuns Interrupted Frames WAN Applications Displaying Synchronous Port Statistics ATM Conﬁguration Accessing the ATM Connections Window Connection Data Settings VPI Conﬁguring Connections Adding a New Connection Deleting a Connection ATM Conﬁguration Conﬁguring Connections Index Index-2 Index-3 Index-4 Index-5 Index Index-6