SMC Networks SMC6608M, SMC6608T Spanning Tree Information Screen Items, Parameter Description

Page 78

	CONFIGURATION AND MANAGEMENT
Spanning Tree Information Screen Items

Parameter	Description

Hello Time	Displays the rate (in seconds) at which hello frames are
	generated.

Forward Delay	The amount of time (in seconds) any port in the Spanning
	Tree will wait before changing states (i.e., listening to
	learning, etc.).

Root Port	The port on the switch that communicates with the root
	device of the Spanning Tree. If the switch is the root device,
	then “No_Port” will appear in this field.

Topology Change	The number of times a port has entered the forwarding state
Count	plus the number of times a port has changed from
	forwarding to blocking.

Time Since Last	The time since a port has entered the forwarding state or
Topolgy Change	changed from forwarding to blocking.

Max Message Age	The maximum time (in seconds) a device in the Spanning
	Tree can wait for a message before reconfiguring.

Root	MAC address of the root device in the Spanning Tree.

Root Cost	The path cost from the switch’s root port to the root device.

State	The current state of the port within the Spanning Tree:
	Disabled - Port has been disabled or failed diagnostics.
	Blocked - Port receives STP configuration messages,
	but does not forward packets.
	Listening - Port leaves Blocking state, transmits configur-
	ation messages, but does not yet forward packets.
	Learning - Port has transmitted configuration messages,
	address table cleared, port begins learning addresses.
	Forwarding - Port forwards packets and learns addresses.

Designated Cost	The cost for a packet to go from this port to the root. The
	slower the media, the higher the cost.

Designated Bridge	The priority and MAC address of the device through which
ID	this port must communicate to reach the root.

Designated Port	The port on the designated bridge through which the switch
	must communicate to reach the root.

4-27

Image 78

Contents TigerSwitch User Guide TigerSwitch Trademarks Limited Warranty Limited Warranty Table of Contents Appendices TroubleshootingSpecifications Pin AssignmentsList of Figures IiiTable of Contents EC Conformance Declaration CompliancesFCC Class a Industry Canada Class aJapan Vcci Class a Australia AS/NZS 3548 1995 Class a CompliancesVii Wichtige SicherheitshinweiseViii Chapter About Tigerswitch About the Tigerswitch TigerSwitch 100 Overview TigerSwitch 100M Base Unit Model SMC6608M Module Ports Connectors Description Port Fast Ethernet Modules for Model SMC6608MSwitch Ports 10BASE-T/100BASE-TX Ports100BASE-FX Ports SMC6608M only Status LEDs Front Panel LEDsConfigure Button Console PortOptional Redundant Power Unit Power Supply ReceptaclesRedundant Power Units RPUs Switch Architecture Switching MethodsSpanning Tree Protocol Management Options Serial Console PortTelnet Key Features and Benefits ConnectivityPerformance Easy Installation Practical ManagementChapter Planning Introduction to Switching Sample Applications Collapsed BackboneMultiport Bridging Multiple Port Bridging ConnectionsServer Farm Aggregation Server Farm Connectivity and ExpansionHigh-Speed Switch Links Cascading to a Fast Ethernet SwitchCollapsed Backbone Using Fiber Cable Collapsed Backbone with Fiber CableHigh-Speed Fiber Backbone High-Speed Fiber BackboneApplication Notes Page Chapter Installation Selecting a Site Equipment Checklist Package ContentsRequired Rack-Mounting Equipment Mounting the Switch in a Rack MountingAttaching the Brackets Mounting and Stacking the Switch on a Flat Surface Attaching the Adhesive FeetPowering Up Connecting to a Power SourceDiagnostics Mbps Ethernet Collision Domain Making Network ConnectionsConnectivity Rules SMC 5 4 3 RuleSMC 2 1 Rule for Class I and Class II Repeaters Mbps Fast Ethernet Collision DomainSMC 3 2 Rule for Class II Repeaters Maximum 100BASE-T Network DiameterTwisted-Pair Cabling Guidelines Connecting 10BASE-T/100BASE-TX Ports Fixed Crossover PortsDaisy-Chain Port Connecting 100BASE-FX Ports Fiber Cable ConnectorsPage Chapter Configuration Management Configuration and Management Configuration Options Basic Port Settings Advanced System Configuration Required Connections and Switch AccessIn-Band Connections Telnet Snmp Network ConnectionSystem Configuration Program LoginMain Menu Main MenuConfiguration Download & ResetSetting Passwords Password ConfigurationConsole Port Configuration Console ConfigurationSystem Parameter Configuration System ConfigurationConfiguration and Management Port Configuration Port Configuration ScreenConfiguration and Management Spanning Tree Configuration Spanning Tree Configuration YesPort Priority Path Cost Configuration and Management Virtual LAN Configuration Virtual LAN Configuration ScreenMonitoring via the Configure Button and LEDs System MonitoringStatus LEDs LEDs FunctionsAdvanced System Monitoring System InformationSystem Information Port Status Statistics StatisticsStatistics Screen Items Address Table Address TableSpanning Tree Information Current Spanning Tree InformationPort State DesignatedCost DesignatedBridgeID DesignatedPort Spanning Tree Information Screen Items Parameter DescriptionDownloading System Software Downloading via Tftp ProtocolTftp Download Downloading via the Console Port Resetting the Switch ResetChapter Management VIA Snmp Snmp Protocol MIB Objects Snmp Parameter Configuration Assigning Snmp Agent Access RightsSnmp Configuration Community Strings Screen Community StringsTrap Receivers Screen Trap ReceiversAppendix a Troubleshooting Switch Indicators Component Failure LED Array Indicator Column Diagnostic TestsSystem Diagnostic Tests System FailuresPower and Cooling Problems System DiagnosticsPort Diagnostic Tests Port Failures Test Failure LED Array RowCabling Communication ModePhysical Configuration Network CardsManagement Interface Terminal EmulationSystem Integrity Page Appendix B PIN Assignments RJ-45 Pin Assignments RJ-45 Pin Assignments Pin Number AssignmentStraight-Through RJ-45 Pin Assignments End Straight-Through WiringCrossover Wiring Crossover RJ-45 Pin Assignments EndConsole Port Pin Assignments DCEConsole Port to 9-Pin COM Port on PC Switch Port PC Port DB-9 Pin No SignalSwitch Port Pin Modem Port DB-9 Pin No Signal Console Port to 25-Pin DCE Port on ModemSwitch Port DB-9 Pin No Console Port to 25-Pin DTE Port on PCNull Modem Pin PC Port Appendix C Specifications All Models Operating Temperature Input PowerPower Consumption EMC/Safety CompliancesModel SMC6608T Model SMC6608M100BASE-FX Page Appendix D Glossary ANSI/IEEE 802.3 Standard ANSI/IEEE 802.3u StandardEnd Station CollisionCrossover Port EthernetIcmp Internet Control Message Protocol Media Access Control MACRJ-45 Connector In-BandStraight-through Port TerminatorSimple Network Management Protocol Snmp UTP Unshielded Twisted-PairPublication Number 900.168, Rev. B