Cabletron Systems MICROMMAC-22T, 42T manual Selecting the Device Statistics Counter Mode

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LOCAL MANAGEMENT

TOTAL: This mode automatically displays statistics describing network performance since the last power-up.

Selecting the Device Statistics Counter Mode

1.Highlight the current mode at the bottom of the screen and toggle to a counter mode selection.

2.Press the Return key.

The selected counter mode appears at the top and the bottom of the screen.

Using the ACCUMULATIVE Counter Mode

1.Select the ACCUMULATIVE counter mode.

The following fields appear on the screen: Date Cleared and Time Cleared in the upper right part of the screen and Clear at the lower left part of the screen.

2.Highlight Clear and press the Return key.

The Date Clear and Time Clear fields change to reflect the beginning of the period over which you want to view device statistics.

Setting the Refresh Field

This field displays the time interval between screen counter updates. You can choose refresh intervals from 3 to 10 seconds.

1.Highlight the REFRESH3sec field at the bottom of the screen.

2.Use the spacebar to toggle through time intervals, or use Shift and the + key to increment the time interval and Shift and the - key to decrease the time interval.

3.Press the Return key to save your changes.

DEVICE STATISTICS screen read-only fields are described below:

Frames Received

This field displays the frames received by the MicroMMAC-T.

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Contents Page Iii FCC Notice Cabletron SYSTEMS, INC. Program License Agreement United States Government Restricted Rights Contents Troubleshooting Local ManagementSaved System Messages Viewing Power UP Diagnostic Tests Contents Overview Chapter IntroductionMicroMMAC-T Overview MicroMMAC-T Features TelnetActive TCU Ports Cable Signal PolaritySpeed Fault Protection Local ManagementFlash Eeprom Ring Speed SwitchCabletron’s Distributed LAN Monitor Mode Lanview LEDsLCD and LCD Display Button Reset ButtonCOM Port Applications MIB SupportRmon MIB Support Rmon MIB RFC 1271/1513 SupportGroup Subgroup Section Stackable Capabilities BRIDGING/ROUTING Capabilities Typical Stackable ConfigurationTelnet Capabilities 1 SNA/WAN IntegrationRemote Management Capabilities BRIMsRecommended Reading Getting HelpCable Specifications MicroMMAC-T Ports/CablesUTP Voice Grade and Category 3 Specifications UTP Cable SpecificationsAttenuation and Impedance Frequency Impedance AttenuationMaximum Number of Stations Maximum Lobe LengthsType 3 Media Filters UTP Maximum Lobe LengthsSTP Cable Specifications STP Cable SpecificationsTypes Frequency Impedance Attenuation STP Cable Type Ring Speed Mbps Maximum Trunk LengthsSTP Maximum Lobe Lengths STP Maximum Drive DistanceMultimode Fiber Optic Cable Specifications Mixed Cable TypesAttenuation Cable Type Attenuation Maximum Drive DistanceSingle Mode Fiber Optic Cable Specifications Single Mode Fiber Optic Cable SpecificationsFiber Optic Budget Crosstalk Cable RECOMMENDATIONS/TROUBLESHOOTINGTemperature NoiseCOM Port Specifications COM 1/COM 2 PortsSlip Tpim SpecificationsUPS TPIM-T1TPIM-T2 TPIM-T1 PinoutsTPIM-F2 TPIM-T4 PinoutsParameter Typical Worst Case Value Budget TPIM-F3TPIM-F2 Specifications Parameter Typical Minimum MaximumREQUIREMENTS/SPECIFICATIONS Output Min. Load Max. Load Max Power General SpecificationsPower Supply Requirements Environmental RequirementsSafety ServicePhysical Unpacking the MicroMMAC-T Attaching the Strain Relief BracketInstalling the MicroMMAC-T Rack-Mounting the MicroMMAC-TInstalling of Rack-Mount Brackets Wall-Mounting the MicroMMAC-TWall-Mounting the MicroMMAC-T Free-Standing Installation Connecting to a Power SourceResetting the MICROMMAC-T Setting the Ring Speed To reset the MicroMMAC-TTo change the ring speed Setting the Nvram Switch To restore MicroMMAC-T parameters to the factory defaultsConnecting Lobe Port Cabling RJ45 Plug MIC ConnectorRJ45 Plug At TCU At device port10. UTP Configuration Example To attach a lobe segment to a MicroMMAC-T network port 11. STP Configuration ExampleInstalling Tpim Modules Signal RJ45 DB9 Ring-In Ring-OutPinout Cross-Reference for TPIMs Setting Phantom and RI/RO Switches Tpim Installation To install a TPIM, perform the following stepsConnecting STP Segments To connect a TPIM-T1 to a Twisted Pair SegmentConnecting Twisted Pair Segments To connect a segment to a TPIM-T2/-T4Connecting Fiber Optic Link Segments 16. The TPIM-T2/-T4To connect a fiber optic link segment to the TPIM-F2 /-F3 17. The TPIM-F2/-F3Checking the Installation To check MicroMMAC-T installationManagement Terminal Requirements Use Local Management to Do the FollowingManagement Terminal Setup Parameters Attaching the Management TerminalTo attach a management terminal to the MicroMMAC-T Modem Cable Configuration and Setup Terminal Settings for LM TerminalMenu Function Selection Accessing Local Management To access Local ManagementAccessing Local Management via Telnet MicroMMAC-TLocal Management ScreenSetup Menu Screen Accessing Local Management from a ModemUsing Local Management Main Menu ScreenSetting or Modifying Local Management Screen Fields Working with Local Management ScreensSelecting a Menu Screen Option Exiting a Local Management Screen Exiting Your Local Management SessionSetting the System Date System Level ScreenSetting the System Time Setting the Host IP AddressModifying the Subnet Mask To modify the Subnet MaskSetting the Default Gateway To set the Default GatewaySetting Automatic Beacon Recovery Process Abrp Fields To set the Beacon Recovery field To set the Number of Retries field Setting COM 1 and COM 2 ApplicationsSnmp Community Names Screen To set the Retry Interval fieldSnmp Community Names Screen Community Name Access PolicySnmp Traps Screen Editing the Community Name fieldTrap Destination Enable TrapsSetting Snmp Traps Trap Community NameRing Security Screen Ring Security Screen Security Mode Station AddressStn Edit Previousscreen SAVE/EXECUTE Nextscreen ReturnViewing the Revised Allowed List Adding Stations to the Station Address Allowed ListDeleting Stations from the Station Address Allowed List Device Statistics Screen Device StatisticsSelecting the Device Statistics Counter Mode Using the Accumulative Counter ModeSetting the Refresh Field Errors Received Isolating ErrorsAC Errors Ring InformationNON-ISOLATING Errors Lost Frame ErrorsFrame Copied Errors Chassis Status View ScreenMode Next Using the Operational Mode Screen 10. Chassis Status View Operational ScreenTo display the status of ports Using the Administrative Mode Screen To enable and disable select portsTo bypass all ports on a module To enable all ports for all modulesUsing the Ring OUT Enable Mode Screen To reconnect a module to the token ringTo switch to and from STN and RO Component Status ScreenMIB Navigator Screen 13. Component Status View ScreenTo access a list of MIB commands To get help on specific commandsTo escape from the MIB Navigator screen Navigational commands MIB CommandsNavigation Built-In Special Built-In commands SetFlash Download Screen To download a Flash imageDownload Method field To chose the Runtime methodTo choose the Bootprom method Toggle from Runtime to Bootprom using the spacebarUsing Lanview LEDs Lanview LedsUsing the LCD Display LCD DisplayStatic System Messages Static System MessagesDisplayed Message Significance Alarm Messages Alarm MessagesDisplayed Significance Messages Unsaved Failure or Error Messages Unsaved Initialization MessagesSaved System Messages Saved System MessagesNormal Unsaved Initialization Messages Displayed MessageViewing Power UP Diagnostic Tests Responding to Error MessagesTo execute a response option To return to Local ManagementPower Supply Cord