Cabletron Systems STHI manual Snmp Tool Screen, Token Errors, Frequency Errors

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The SNMP Tool Screen

Token Errors

4

A Token Error may indicate that an active monitor either has detected a recirculating frame or token, or has found that its Timer Valid Transmission (TVX) time has expired before any token has been detected circulating on the ring (i.e.: a lost frame error has occurred). The active monitor is responsible for purging the ring and issuing new tokens in response to these errors.

Frequency Errors

5

A Frequency Error may indicate that the frequency of the incoming signal deviates excessively from that of the reporting station’s onboard crystal oscillator. When frequency errors are detected, the ring enters the monitor contention process to establish a new active monitor.

5.9 The SNMP Tool Screen

Access the SNMP Tool screen (Figure 5-14) from the Main Menu.

STHI LOCAL MANAGEMENT

 

Flash Image Version: 1.00.00

 

 

 

 

SNMP TOOLS

 

 

 

COMMUNITY NAME: public

 

 

 

 

OID PREPEND: 1.3.6.1

 

GET

SET

GETNEXT

WALK

RECALL OID

STEP CYCLES REPEAT

F6

F7

F8

 

F9

 

RETURN

F10

Figure 5-14. SNMP Tool Screen

Through the SNMP Tool screen, the user can access information stored in the STHI hub’s Management Information Base (MIB). MIBs and their objects are logically arranged as trees with subsequent branches and leaves; each leaf is a MIB object. One leaf, for example, contains the hub’s

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Contents Sthi Intelligent Token Ring Stackable HUB USER’S Guide Page FCC Notice Cabletron Software Program License United States Government Restricted Rights Introduction Requirements & SpecificationsInstallation Troubleshooting Local ManagementAppendix a Tpim Specifications Appendix B Media Specifications Contents of This Manual Sthi OverviewSthi Overview Lanview LEDsTCU Ports Lobe Port and Multiple Ring Out Port ConfigurationsRing Speed Fault Protection Active Circuitry Daughter Board Upgrade KitMedia Type Connector 3 RI & RO PortsSupport for Passive MAU Workgroups Automatic Beacon Recovery ProcessHub-By-Hub Bypass Control IP Address Discovery Improved Protection from BeaconingFlash Downloads DAISY-CHAIN MAU Configuration Related Manuals Related ManualsGetting Help Local ManagementGetting Help General Networking Considerations Maximum Number of Stations on a RingGeneral Networking Considerations TemperatureInstallation Recommendations CrosstalkHubstack Interconnect Cables Operating SpecificationsOperating Specifications TCU and COM PortsRJ45 to DB25 Connector Pinout Cabletron Enterprise MIBs Supported MIB GroupsStandard MIBs Ring SpeedSafety Ring SequenceEnvironmental Requirements Physical SpecificationsComputing Hardware Installing the Sthi Unpacking the SthiAttaching the Strain Relief Bracket Installing the SthiStacking the Sthi Rack-Mounting the SthiWall-Mounting the Sthi Rack Mounting BracketsInstalling the Sthi Free-Standing Installations Wall-mounting the SthiTpim Installation Tpim InstallationFinishing the Installation Connecting the Sthi to the Power SourceLanview LED Signals Color ConditionLoss Of Power Trouble ResolutionTrouble Resolution Failure to Link on Enabled PortReset Button Reset ButtonReset Button Management FailureNvram Reset Switch Nvram Reset SwitchAccessing LM Local ManagementMenu Parameter Setting Accessing LMDumb Terminal Configuration Console Cable Configuration Entering LMInvoking Menu Options or Screen Commands Using LM ScreensUsing LM Screens Working with LM ScreensSetting or Modifying Fields Exiting the Local Management Interface SessionScreen Introductions Password Screen Main Menu Device Setup StatusScreen Hierarchy System LevelComponent Status Snmp TrapsChassis Status View Device StatisticsSystem Date and System Time System Level ScreenSystem Level Screen IP AddressRetry Interval Enable IP Address DiscoverySubnet Mask Enable Beacon Recovery Number of RetriesSnmp Community Names Screen Locally Administered AddressSnmp Community Names Screen MAC AddressRead-only Access PolicyCommunity Name Read-writeSnmp Traps Screen Enable TrapsSnmp Traps Screen Trap DestinationChassis Status View Screen Screen Mode Screen CommandChassis Status View Screen Functions of the Chassis Status View ScreenMultiplexer Configuration Fields Port Configuration Fields Administrative ModeEach port field whether Tpim or TCU may be set as follows Ring OUT Enable Mode Operational Mode Each Ring port Tpim port or Ring Out TCU may be listed asNext and Previous Component Status ScreenComponent Status Screen Device Statistics Screen Device Statistics ScreenScreen Mode AccumulateKBytes Received Errors ReceivedFrames Received Beacon StatesRing Number Ports EnabledRing Status Stations on a RingBurst Errors Isolating Errors Fields GroupLine Errors AC ErrorsLost Frame Errors Internal ErrorsNon-Isolating Errors Group Frame Copied ErrorsSnmp Tool Screen Token ErrorsFrequency Errors Snmp Tool ScreenOID Prepend 3 GETGetnext Step9 SET WalkCycles Repeat Firmware Image DownloadsCtDLCommitRAMtoFlash Overview Twisted Pair Tpim PinoutsFiber Optic Tpim Specifications Fiber Optic Tpim SpecificationsBudget TPIM-F2 for Multimode FiberParameter Typical Worst Case TPIM-F3 for Single Mode Fiber Parameter Typical Minimum MaximumA-5 Unshielded Twisted Pair UTP UTP Cable CategoriesAttenuation Loss Cat Frequency Operating Electrical SignalUnshielded Twisted Pair UTP Per 100m @ ≥100m@ 4 Mbps @ 16 Mbps Shielded Twisted Pair STPShielded Twisted Pair STP CategorySTP Lobe Lengths Operational Attenuation perType Frequency 1000 m 1000 ft Mixed STP Cable TypesMax. Lobe Length Max. Drive Distance Type Mbps Single Mode and Multimode Fiber Optic CablingSingle Mode and Multimode Fiber Optic Cabling Total Maximum