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IBM ATM OC-3c manual ATM Physical Layer Statistics

Models: ATM OC-3c

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ATM Physical Layer Statistics

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7If you suspect that the fiber optic cable is not working, replace the cable with a cable known to be working, and check the Link Status LED.

8Check that the cable has not been accidently plugged into an FDDI connector at one end of the connection.

9Check that the ATM Module and ATM Switch are using compatible transmit clocking options.

10Check that the Line Rate settings on the two devices are compatible.

11If there is still a problem, contact your repair center for advice. For more details, refer to Appendix E.

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IBM ATM OC-3c manual ATM Physical Layer Statistics

Contents

User’s Guide Research Triangle Park NC First Edition OctoberContents Accessing Management Features Screen Map Glossary Bibliography Page ATM Terminology About this GuideIntroduction TerminologyIcon Alerts you to Finding Information in This GuideConventions Task LocationBold Related DocumentationAbout this Guide ATM Benefits Features and BenefitsWire Rate Transmission on ATM port ATM Module FeaturesLayered Network Architecture Network Layer ConceptsUpper Layer Protocols What is LAN Emulation LANE?LAN Emulation Server LES LAN Emulation Configuration Server LecsLAN Emulation Components LAN Emulation Client LECLAN Emulation and IBM Devices LAN Emulation Components in Your NetworkLEC must know the name of the Elan it is to join Joining the ElanLocating the Lecs Mapping Ethernet and ATM Addresses Address ResolutionIf the destination MAC address is listed in the ARP Table What Happens to Unicast Frames? LAN Emulation Address Resolution Protocol LearpWhat Happens to Broadcast and Multicast Frames? ATM Adaptation Layer AAL Asynchronous Transfer Mode ATM LayerATM is Cell-based ATM is Connection-oriented ATM is Service TransparentVirtual Path Identifier VPI Virtual Channel Identifier VCI 7Switching Cells using VPI and VCI values ATM Interfaces Switched Virtual Circuits SVCsPermanent Virtual Circuits PVCs ATM Address Registration Interim Local Management Interface IlmiNetworkhostidentifier 10ATM Cell Structure ATM Layer and Cell StructureSonet STS-3c Physical Layer16CHAPTER 2 Network Layer Concepts Creating Inter-switch VLANs What is a Virtual LAN VLAN?Virtual LAN Concepts 2VLAN to Elan Mapping Extending VLANs into the ATM NetworkExtending VLANs into the ATM Network 4CHAPTER 3 Virtual LAN Concepts Can your ATM devices communicate with each other? Putting Your ATM Network TogetherPlanning Your Network Does your existing ATM network have sufficient resources?Extending VLANs Through the ATM Network ATM Configuration RulesATM Connections Within Your Network Are the LAN Emulation services configured correctly?1SVC Signalling Not Supported in Remote Edge-device ATM Backbone in the Building Network Configuration ExamplesCampus Configuration Campus Configuration Making a Building Resilient to Network Failure 3Resilient Link ConfigurationFollowing Safety Information Installing and Setting UP the ModuleEbezpečí ÎïàñíîCheck the Power Supply Pre-installation ProcedureDevice Support 1Fitting the ATM Module InstallationPower On Self Test Post Post-Installation ChecksConnecting a cable to the ATM Port Powering Up the SwitchLED Summary Checking that the ATM Module is Installed Correctly Checking the Power SupplyChecking the Physical Connections 8CHAPTER 6 Installing and Setting UP the Module Correcting Text Entry Accessing Management FeaturesScreen Map Keyboard ShortcutsScreen Map Main Banner Logging OnLogging Off User Name Default Access Level PasswordAutomatic Logout 1Management Screen Map Managing the ATM Module2ATM Module Configuration Screen Configuring an ATM PortDesired Value of VPI Number of bits Required Configuring an ATM Port3ATM LEC Setup Screen Displaying all VLANs 4Switch Management Screen5VLAN Selected Screen ATM Port SetupProblem Solution 7ATM Port Setup Screen8ATM ARP Table Screen Mapping Far End MAC AddressesMapping Far End MAC Addresses Creating a MAC Address to ATM EntryDeleting an Address Entry Displaying an ATM ConnectionFinding an Address Entry Updating Address EntriesFinding an ATM Connection Setting Up Resilient LinksUpgrading Software 10Software Upgrade ScreenError Messages Load Paused Status MessagesActive Download successful1Status Monitoring Screen Map Monitoring the ATM ModuleATM Physical Layer Statistics screen Statistics OverviewMonitoringUse Physical ConnectionATM Port Statistics 2Switch Management Screen4CHAPTER 9 Monitoring the ATM Module 4ATM Vlan LEC Status Screen ATM Vlan LEC StatusLEC State Description State Possible Causes Possible Solutions NoneTimeout Undefined ErrorDuplicate LAN State Possible Causes Possible Solutions Invalid RequestState Possible Causes Possible Solutions Duplicated ATM ParametersNo Configuration State Possible Causes Possible Solutions InsufficientState Possible Causes Possible Solutions Invalid Access DeniedConnecting to BUS State Possible Causes Possible SolutionsError ConfigurationFollowing button is available on this screen ATM Physical Layer StatisticsATM Physical Layer Statistics Using Physical Layer Statistics to Troubleshoot ATM Physical Layer Statistics 14CHAPTER 9 Monitoring the ATM Module Safety Notices Safety InformationWorld Trade Safety Information 2APPENDIX a Safety Information Safety Notices Neodstraňujte desky modulů, pokud je připojeno napájení Safety Notices 6APPENDIX a Safety Information Safety Notices 8APPENDIX a Safety Information Screen Access Rights 2APPENDIX B Screen Access Rights Environmental Specifications ATM Module Technical SpecificationsATM Cable Specification Does the Cable Provide Sufficient Bandwidth? Specification DescriptionNumerical Aperture Example 4APPENDIX C ATM Module Technical Specifications How to Use this Guide to Troubleshoot TroubleshootingUsing LEDs Identifying the Problem Figure D-1Troubleshooting Flow Diagram Are there Physical Layer Errors? Access the Physical Layer Statistics ScreenCheck the Physical Connections Access the ATM Port Setup ScreenAre Cells being transmitted and received? Is the ATM Port Enabled?Enable the ATM Port Access the ATM Port Statistics ScreenIs the LEC ATM Address Valid for the Default VLAN? Access the ATM Vlan LEC Status ScreenIs the ATM Switch Using AAL5? Both Devices Must be AAL5 Compliant Access the ATM Module Configuration ScreenIs Signalling Compatible? Make Signalling CompatibleMake the MAX VPI and VCI Bits Compatible Is the Ilmi Connection Set Up Correctly?Make Ilmi VPI/VCI Same at Both Ends of the Link Are the MAX VPI and VCI Bits Compatible?Operational Why has the LEC Operation Failed?State Possible Causes LEC is trying to join Is the LEC Operational Now? Re-map or Route the LEC Elan Configuration ProblemsHas the Problem been Solved? Are the LECs on the Same Emulated LAN?Use routing Is the MAC Address in the Switch Database?Enter the MAC Address in the Switch Database Is There Still a Problem?Solving Known Problems Few minutes Power Supply ProblemsSwitch powers up but then Shuts itself down after aATM Module Fails Power on Power On Self Test Post FailureSelf Test Post Far End Status LED indicates Cable Connection ProblemsOnly showing reserved ATM ATM ProblemsConnections Insufficient Resources Vlan or Elan ProblemsCommunicate with each OtherExample To clean fiber optic connectors on the ATM Module Cleaning Dirty Fiber Optic ConnectorsTo clean the cable connectors IBM Bulletin Board System Technical Support and ServiceElectronic Support Voice Support2APPENDIX E Technical Support and Service Trademarks IBM Warranty for Machines Statement of Limited WarrantyProduction Status Extent of Warranty Warranty ServiceLimitation of Liability Federal Communications Commission FCC Statement Electronic Emission NoticesEuropean Union EU Statement Information To The User How to Identify and Resolve Radio-TV Interference Problems Glossary ATM SwitchATM Forum Connectionless ByteCell Cell HeaderLink LAN Emulation LanePayload MultiplexOctet OC-nUNI TelnetVirtual Channel VCIBooks Asynchronous Transfer Mode ATMBibliography LAN Emulation LaneBibliography ATM IndexSDH STM-1 Sonet Index