Receiving Snmp Traps with the Trap Manager | SMC Networks 6.20

MANAGING EVENTS

Receiving SNMP Traps with the Trap Manager

Trap is a protocol mechanism defined in SNMP by which managed devices report unique events to the network management station. Devices can be set up to report specified conditions to EliteView using Trap messages.

Limitations of Trap Messages

Trap messages are designed to report information that requires immediate attention. However, the value of Traps is limited in SNMP because there is no guarantee these messages will be delivered. Trap messages may be lost en route or ignored by the network manager.

Trap Types

There are two types of traps defined in the SNMP standard.

•Generic trap is supported by all SNMP-compliant devices. The most common events include cold start, warm start, link down, link up, SNMP authentication failure, and EGP neighbor loss. (EGP is the Exterior Gateway Protocol used to exchange routing information.) Generic traps, numbered 0 to 5 in the “generic trap” field of the trap message, are defined in TRAP.INI.

•Specific trap is supported according to the characteristics of the device. Specific traps are numbered 6 in the “generic trap” field. A “specific trap” field identifies the trap type.

Trap Manager

EliteView’s Trap Manager collects trap messages and converts them into events. The Trap Manager generates a “trap” event and outputs a text message according to the pattern specified in TRAP.INI. These events are then handled by the Event Manager.

If the TRAP.INI file is changed, re-boot the Trap Manager by closing it and then starting it again.

The Trap Manager has no tangible user interface. When the main EliteView program is started, if the Trap Manager is not loaded automatically (as defined in NETMGR.INI), then you can load it from the Utilities menu, or from the Window’s Program Manager (by clicking on the Trap Manager icon in the EliteView program group). When EliteView terminates, the Trap Manager is also closed.

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SMC Networks 6.20 manual Receiving Snmp Traps with the Trap Manager, Limitations of Trap Messages, Trap Types

Contents

Management Guide Page EliteView User Guide Trademarks Limited Warranty Licence Agreement Limitation of Liability and Damages About This Guide General Manual CoverageConventions Used in this Manual Additional ReferencesPage Contents Network Tools Snmp MIB Management Collecting Data with Log Manager Using Rmon Managing Events CodeBase 6.0 DLL Sub-License Agreement G-1 Glossary Index Tables Xiii Xiv Chapter Introduction General Description Management Functions Application Interface Features of EliteView EliteView includes the following features Introduction Installation for EliteView Chapter InstallationSystem Requirements Using Setup to Install EliteView To Start Setup Chapter Getting Started OverviewNetwork Interface Event-Driven, Modular Architecture EliteView Modules Discovery EliteView Main ProgramEvent Manager Log Utilities MIB Compiler MIB-2 ViewerName Database Manager Report Tftp Server Trap Manager Data Logging and Event Management How the Event Manager Works Starting EliteView Using the Main EliteView Program Platform EliteView Program Menu Definitions Menu Label Description EliteView Program Toolbar Button Label Description Configuring the Toolbar Configuring Polling ParametersStatus Bar Quick Guide to Map Building Command MenuCreating a Network Map Using Discovery Discovery Menu Description Protocol selection and advanced settingsMenu Definitions Discovery Menu Definitions To automatically discover devices Field Description for Discovery Setup MenuField Description To automatically discover devices in a community Name Database Manager Adding a New Entry Deleting Device EntriesUpdating Device Entries Name Database Manger Editing Tools Creating Network Maps Searching for Device Entries Menu Description for Map Functions Menu Description for Map Functions Map Editing Toolbar Buttons Editing Map Objects Adding a Map ObjectMap Generic Device Types Map Add New Object Dialog Box Sample Configuration UDP Modifying Objects Deleting ObjectsDuplicating Objects Moving Objects Object Status Map Limitations Setting Addresses with the Bootp Server Bootp ProtocolHow EliteView’s Bootp protocol works Chapter Network Tools Starting the Bootp Server To open the Bootp DatabaseBootp Server Dialog Box Parameter Description Example Adding and Modifying Node Information Adding a Node to the Bootp ServerTo add a new node Adding Filename Mappings To define a default address with IP and physical addresses Default InformationProbing Devices with the Alive Test To adjust parameters for the Alive Test To select a target deviceAlive Test Statistics Statistics Description Example Problem Solving with the Alive Test Using the Tftp ServerDownloading Files with the Tftp Server Starting the Tftp Server Tftp Process List Viewing the Tftp Process ListField Description Example To telnet into a workstation using your network map Telneting to Other Computers on the NetworkFetching Files from Other Servers To start a transfer session Where You Are WUR File Menu Commands Device Menu Commands SearchRemove All Exit Option Menu Commands SetupLearn Table Self Table Utilities Menu Commands Batch UpgradeOutput Edit Menu Commands UpgradeTftp Server Select All Backup Options Menu CommandsLoad From Map Refresh File List Backup Start Schedule Stop Schedule Network Tools Snmp MIB Management Chapter MIB Compiler MIB Database Starting the MIB Compiler Running the MIB CompilerMIB Compiler Dialog Box Description Sample Display MIB Module List Loading a new MIB Description Sample Display Things to remember when using the MIB Compiler MIB-2 ViewerUnloading MIB modules Viewing the MIB Module List New Open Save Save As MIB-2 Directory System InformationMenu Bar System Information Window Field Description for Interface Admin Window Interface AdministrationField Description for Interface Admin Window Field Description for Interface Statistics Window Interface StatisticsField Description for Interface Statistics Window Viewing Statistics Basic Functions of MIB Browser MIB BrowserAdding a Log Process Menu Definitions Menu DescriptionMIB Browser Menu Definitions Accessing Device Values Fetching Device Values Using The MIB Browser MIB Variable Textual Definitions Get Bulk Request Get Request Get Next Request Snmp MIB Management Pause Resume Abort Using the Output Options Viewing Output Data Collecting Data with LOG Manager Add/Delete/Edit Numeric Data Process Display Activate Editing a Log Process Adding a New Log Process Modifying a Log Process Field Description for Log Manager/Information Dialog BoxesField Description for Log Manager/Information Dialog Boxes Using the Log Database Manager Log ControlsViewing Log Data Deleting a Log Process File Menu Edit Menu Defining Filter Formulas Filter Formula Syntax for Simple Expressions Filter Formula syntaxSyntax for Complex Expressions Elements of Filter Formulas Elements of Filter FormulasParameter Example Description Threshold vs. Filter Formula Defining Threshold FormulasAccuracy Threshold Formula Threshold Formula Syntax Refer to the same section under Filter Formulas Syntax Elements of Threshold Formulas Elements of Threshold Formulas Basic Functions of Chart Manager Chart Manager UtilityChart Manager Menu Definitions Creating Log Charts Log Chart InformationAbout the Chart Manager Editing Data Summarizing Data Displaying Graphic Charts Graph Controls Chart Manager Graph ControlTab Title Description For each line from the drop-down menu opposite the check-box Overlay point on that bar Column in the table for use in the image map Collecting Data with LOG Manager Understanding the Event Manager Chapter Managing EventsStarting the Event Manager Defining Events Defining Event ActionsPre-Defined System Events Defining User Events Event Actions Action Description Example Event Data Event Data Parameters Description Example Limitations of Trap Messages Receiving Snmp Traps with the Trap ManagerTrap Types Report Window Menu Definitions Posting Messages to the Report WindowMenu Function Edit Menu Introduction Brief Description of Rmon Starting the Rmon Manager Rmon Manager Probe Window Rmon Manger Main Screen Rmon Groups Rmon UtilitiesGroup Description Statistics Group Statistics Group Control Table Viewing Statistics Adding or Editing an Entry in the Control TableSMC6724L3 1 Interface Description SMC6724L3 1 Interface Description Rmon Utilities Statistics Areas Statistics Parameter Descriptions Parameters Description Statistics Menu and Tool Bar History GroupStatistics Status Bar 10 History Control Table Viewing History Alarm and Event Groups 11 Alarm Control Table May be sampled Host Group 12 Event Control Table Index Entries 13 Host Control Table 14 Host Control Table Menu and Tool Bar Descriptions Host Top N Group 15 Host Top N Menu and Tool Bar Descriptions Matrix Group 16 Matrix Control Table 16 Matrix Control Table Filter and Capture Groups 17 Matrix Menu and Tool Bar Descriptions 18 Channel and Buffer Control Table Accepted Using Rmon 19 Filter Configuration Options Data The bit pattern to filter 20 Channel and Buffer Add/Edit Dialog Box Or Always Ready 21 Separate Control Tables Channels 22 Separate Control Tables Filters 23 Separate Control Tables Buffers Using Rmon 24 Buffer Menu and Toolbar Descriptions Using Rmon Adding a New MIB Using the MIB Compiler To add a new MIB into the EliteView MIB database Managing a Third-Party Device Using the MIB Browser Node Label field, type ezRptrTotalFrames, and press Enter To set a variable in a third party device Using the Log and Event Managers to Monitor the NetworkTo use the Log Manager and Event Manager Table A-1 Log and Event Manager Parameters Critical eventsIdeal for sending a message via email or FAX Action is recommended for routine events Table A-2 Port Packet Reception Parameters To monitor the total packets received by the target deviceParameter Given Information Customizing EliteView to Receive Third-Party Traps Table A-3 Target Device Packet Reception Parameters Exporting Logged Data to Other Software To export logged data into other software Typical Eliteview Applications Appendix B Customizing Eliteview EliteView’s Initialization FilesInside the NETMGR.INI File Description of Sections in NETMGR.INI Changing Parameters in NETMGR.INI Parameter format conventions System Section Device SectionDescription of Parameters in NETMGR.INI Table B-2 Description of Parameters in NETMGR.INI Table B-3 Parameter Definitions for the device Section Parameter Definitions for the device SectionParameter Description Tools Section Parameter Definitions for the tools SectionTo edit the tools section Table B-4 Parameter Definitions for the tools Section Bitmaps Section Table B-5 Identifying Particular Tools for a Device Table B-6 Enumerating Graphic Bitmaps Util Section Parameter Definitions for the util SectionTo edit the util section Table B-7 Parameter Definitions for the util Section Startup Section Tftp SectionTo edit the startup section Parameter Definitions for the startup Section Discover SectionTable B-8 Parameter Definitions for the startup Section Inside the TRAP.INI File Parameter Definitions for the discover SectionDescription of Sections in TRAP.INI Table B-9 Parameter Definitions for the discover Section Generic Section Elements of a Trap MessageTable B-11 Elements of a Trap Message Table B-12 Parameters of the generic Section To edit the enterprise section Enterprise SectionTable B-13 Parameters of the enterprise Section To edit specific traps Specific Trap SectionsTable B-14 Trap Message Parameters Table B-15 Trigger Event Parameters Example Sample of specific trap entry Customizing Eliteview Snmp Roles Appendix C Snmp EnvironmentManaging Data Objects Table.index notation Iso origin \EV60\NETMGR.INI Table C-1 Branches to the iso Origin BranchesObject Identifier Numeric Identifier Appendix D Technical References RFC Reports Table D-1 RFC Reports Networking Information RFC ReportsRFC Number Title Publisher/Year Industry-Related Documentation Technical References Optimize Your Computer System Appendix E Performance TipsMinimize Unnecessary Resources Other Tips Table E-1 RFC Reports Managing Data Managing Data Industry-Related Documentation Product Overview Appendix F SpecificationsTable F-1 Product Overview Fault Management Inventory and Configuration ManagementPerformance Management Resource and Load Management Data Transfer System Requirements Specifications SUB-LICENSE Agreement Appendix GDefinitions Sub-License Transfer RestrictionsDisclaimer Miscellaneous Appendix H Troubleshooting SymptomsEliteView Map Icon Stays Red Possible Causes Distributable Software SymptomTrap Manager MIB Variable Not Found Appendix Error Messages EliteView Create file error Device section error in NETMGR.INIInvalid old password Cannot open submap window Invalid password Invalid timeout valueInvalid polling interval Invalid retries value Bootp Server Bind to UDP socket failed with error code = %d Out of memoryOut of Memory for allocation Record not Found Enable receive broadcast frame error with error code %d Get bootp service info errorGot Fdread message, but got length error with error code %d Open UDP Socket failed with error code = %d Send packet failed with error code %d Setup receive message error with error code = %dBootp application is installed Network subsystem is not ready Cannot find %%%%%%% or this bitmap file has problem Cannot find IP general node in device section of NETMGR.INICreate status window not successful Dump all Ethernet objects to namebase failed Dump function cannot work when searching for objects IPX Diagnostic Service Socket open failureDump all UDP objects to namebase failed Initial namebase failure Open IPX channel failure. IPX protocol will be disabled None of the SNMP/UDP or SNMP/IPX protocols workNot enough memory to allocate channel parameter structure Not enough memory to allocate for IPX packet data Ipnode= entity of discover in NETMGR.INI is not correct Ipxnode= entity of discover in NETMGR.INI is not correctNwserver= entity of discover in NETMGR.INI is not correct Path= entity of bitmaps in NETMGR.INI is not specified Event Manager Enable receive broadcast frame error error code %d Got Fdread message, but got length error error code %dGet protocol information failed for icmp Icmp communication channel has terminated Open RAW Socket failed with error code = %d Send request failed with error code = %dSetup receive message error error code = %d Receive frame for socket %d. Not for Icmp socket %d Log Manager Invalid start time Invalid stop timeLOG database is corrupt Invalid number Cannot create MIB tree window Cannot create new output fileCannot create statistics window Cannot create Toolbar Polling interval must not be less than timeout Line xxx Bad RecordLine xxx Invalid value will be discarded No Snmp Request Snmp GetRequest Error Snmp GetNextRequest ErrorSnmp SetRequest Error Trap error Parser had an error Line %d Message %s Error happened in merge tree nodeAccess %s in %s near line %d is unknown Object list is not a tree Merge Tree Error Error Peers with the same ID node1 = node2 = subidentifierStatus %s in %s near line %d is unknown Near line %d is a self-defined identifier Index %s is not defined in the database or MIB file Cannot find any traps for the MIB moduleCannot find next node Cannot find the node’s parent Invalid search mode MIB database errorCannot find the text any more Cannot find this text Report Tftp Server Initialize namebase failed Invalid Retry valueOpen Snmp communication channel failed Open Tftp communication channel failed Get tftp service information error Cannot open IFM window Receive frame from wrong socket %d Setup received message error error code = %dPort number of application is duplicate Trap Manager Winsock.dll should at least support versionInvalid format in section enterprise entry MIB variable varlabel not found Error Messages Appendix J Product Support Services Technical Support InformationTechnical Support Table J-1 Technical Support Information Internet Mail addressestechsupport@smc.com Glossary IP Address Local Area Network LANMAC Address Map Timeout Out-of-BandPacket Protocol Unicast Packet Winsocket Index Index-1 Index-2 Page EliteViewTM