Enterasys Networks MicroMMAC-T Transmitted Beacons, Recoveries, Lobe Wire Fault, Remove Frames

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Token Ring Statistics

Transmitted Beacons

Beacon frames are transmitted by ring stations when certain error conditions are detected. These frames notify all ring stations that there is a problem, and causes the stations in the fault domain (the beaconing station and its NAUN) to remove themselves from the ring and perform a loopback test. If either station fails the test, its removal should allow the ring to recover.

Recoveries

Indicates that claim tokens have been detected on the ring. Claim token frames are issued during the active monitor contention process; their presence on the ring indicates that the ring is recovering from the loss of the active monitor. This counter is reset once the new active monitor is chosen and issues a ring purge to reset the ring.

Lobe Wire Fault

Indicates that a station on the ring has detected a short or open condition on its lobe wires. This condition is detected by the loss of the phantom current. A station detecting this condition will remove itself from the ring.

Remove Frames

Indicates that a Remove MAC frame has been detected on the ring. A Remove MAC frame forces the receiving station to remove itself from the ring. Once a station has removed itself from the ring, its actions will depend upon its design: some devices will automatically try to re-insert after a pre-determined timeout period; as part of the re-insertion process, those devices will perform a loopback test to verify that their MAC adapters are operating properly. Stations which do not automatically attempt re-insertion will simply remain off the ring until they are manually re-inserted.

Auto Removes

Indicates that one or more stations has failed a loopback test performed as a result of a beaconing condition, and has therefore removed itself from the ring.

Single Station

This condition indicates that the management station has determined that it is the only station on the ring.

Hard Errors

If the management station has detected hard errors on the ring, this field will display “Detected.” If no hard errors were detected, this field will display “None.”

3-18	Management Station Statistics

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Contents MicroMMAC-T Users Guide Page Virus Disclaimer Page Restricted Rights Notice Page Contents Contents Chapter Token Ring StatisticsIndex Chapter Token Ring AlarmsChapter Station List and Station Map Contents Viii Introduction Using This Guide IntroductionSoftware Conventions Using the MouseRelated Manuals Left Mouse Button Right Mouse Button Using Window Buttons Common MicroMMAC-T Window FieldsLocation Device NameIP Address MAC AddressGetting Help from Enterasys Global Call Center Using On-line HelpGetting Help Introduction MicroMMAC-T Chassis View Viewing Chassis Information Front Panel Information Date Menu StructureTime MicroMMAC-T Chassis View Menu Structure Device MenuPort Status Menu Network Menu Utilities MenuPort Menus Help MenuModule Menus Selecting a Port Status View Port Status DisplaysRing Port Menus Status ErrorsLoad Port Status Color Codes Port AssignmentRing Port Status Click on MIBs Supported Chassis Manager WindowViewing Hardware Types Module Type Managing the HubDevice Type Management Station Configuration Accessing the TR Management Station Configuration WindowSetting Station Name and Location Station Name Configuration WindowSpecifying Ring Management Functions Host Error Report Timer DelayEnable Beacon Recovery Inhibit Active MonitorEnable Ring Poll Recovery Viewing Network Information Selecting the RingNetwork Information Window Fields Token Ring Board Status Window Fields Ring of X Configured RingsViewing Module Status Board NumberAccessing the Ring Port Status window Viewing Ring Port StatusPort Last Wire FaultRing Port Status Window Fields Media TypeSetting the Device Date and Time Using the Media Type and Phantom Current Radio ButtonsUsing an Uninterruptable Power Supply UPS 13. Device Date Change WindowAccessing the UPS Window 14. The UPS WindowUPS Uptime Battery OutputBattery Capacity Line VoltageUsing the Test Option Resetting the DeviceSetting the UPS ID Using the Disconnect OptionEnabling and Disabling Port Mapping Enabling and Disabling Link Traps 15. The Port Map WindowSetting Token Ring Boards to Automode Enabling and Disabling Link Traps at the Board LevelEnabling and Disabling Ring Ports Enabling and Disabling PortsEnabling and Disabling Station Ports Ring Out Enable/Disable Viewing I/F Summary InformationDescription IndexType Physical StatusInterface Performance Statistics/Bar Graphs Raw CountsRate Viewing Interface DetailAddress UnicastMaking Sense of Detail Statistics Transmitted Errors /Packets Transmitted Statistics Window Features Setting Total, Delta, or Cumulative CountsViewing Elapsed, Average, and Peak Activity Levels Token Ring StatisticsSetting the Statistics Poll Interval New Timer Interval Text BoxNetwork Statistics Window Accessing the Network Statistics SelectionsNetwork Level Statistics General Information FieldsStations Inserted Ring SpeedRing Status Fields Active MonitorSoft Error Fields Beacon StatisticsAbort Sequences Burst ErrorsInternal Errors Frequency Errors Congestion ErrorsToken Errors Lost FramesNetwork Timer Statistics Window Fields Network Timer StatisticsTotal Errors KBytes Network Performance GraphsFrames Network Events Red Configuring the Network Performance GraphNetwork Performance Graph Statistics Traffic BlueFrame Size Window Total and Delta Graph DisplayUsing the Pie and Bar Radio Buttons Frame Sizes Window with Pie ChartProtocol Statistics Window Accessing the Management Station Statistics Selection Management Station StatisticsSoft Errors Fields Hard Errors Fields FC ErrorsSoft Errors Signals LostHard Errors RecoveriesLobe Wire Fault Transmitted BeaconsStation Statistics Window Accessing the Station Port MenuPort Level Statistics Link Time Station Statistics Window General FieldsStation Name Station Statistics Window Performance FieldsStation Statistics Window Soft Error Fields Station Timer Statistics Window Station Timer Statistics Window Fields Port Performance GraphsTotal Errors Red Port Performance Graph StatisticsConfiguring the Port Performance Graph Token Ring Statistics Token Ring Alarms Ring-Level Alarm LimitsAccessing the Alarm Limits Window Ring-Level Alarm Limits for Network EventsRing-Level Station Alarms Token ErrorsSetting Ring-Level Alarm Limits LineStation-Level Alarm Limits Accessing the Station Alarm Limits Window from the Port MenuToken Ring Alarms Setting Station-Level Alarm Limits Station Alarm Limits WindowToken Ring Alarms Station List and Station Map Station List WindowGeneral Fields Address ModeStation List Window Fields Number of Nodes/StationsViewing Station Statistics Station FieldsRemoving a Station from the Ring Viewing Station Timer StatisticsSetting Station Alarms Printing the Station List Using the MAC/Canonical ButtonViewing the Station Port Performance Graph Resetting Counters Station MapStation Map Window Fields Number of NodesViewing the Station Map Station Pop-up Text BoxesStation Map with Text Boxes Node AddressStation Command Menu Manipulating the Station Map Magnifying a Portion of the MapRotating the Station Map Resizing the Station Map Window Station List and Station Map Symbols IndexIndex-2 Index-3 Index-4