Troubleshooting 2 Symptom Possible Cause Solutions | Paradyne 7112

Messages and Troubleshooting

Table 8-2. Troubleshooting (2 of 2)

Symptom

Possible Cause

Solutions

Not receiving data.

HThe network or data port cables are not connected (check front panel LEDs for more information).

HA test is being executed on the unit (check the TEST LED on the front panel).

HCheck network and data port cables.

HRun Loopback tests. Refer to Chapter 7, Testing.

HStop the test or wait for the test to end.

	H The data port is not	H Check the Cross Connect Status
	assigned to the network.	screen. If the data port is not
		assigned to any network
		timeslots, use the Cross Connect
		Assignment screen (under the
		Config menu) to connect the port
		to the network.
	H The far-end device is	H Make sure the far-end device is
	off-line.	on.

Power-Up Self-Test	The DSU/CSU has	H Select ClrStats from the status
fails. Only Fail LED	detected an internal	menu
is on after	hardware failure.	H Contact your service
power-up.		H Contact your service
power-up.		representative.
		representative.

7112-A2-GB20-20

March 1998

8-5

Image 75

Paradyne 7112 manual Troubleshooting 2 Symptom Possible Cause Solutions

Contents

Model 7112 T1 DSU/CSU Copyright 1998 Paradyne Corporation All rights reserved Contents Configuring the DSU/CSU Monitoring the DSU/CSU Messages and Troubleshooting MIB Descriptions Technical Specifications Glossary Index About This Guide Document Purpose and Intended AudienceDocument Summary Product-Related Documents About the T1 DSU/CSU Model 7112 T1 DSU/CSU Features Typical Configuration through a T1 network Typical DSU/CSU Configurations User Interface Types Front Panel LED Status Indicators Network Rear Panel Interface ConnectionsSnmp Management Capabilities Management Information Base MIB Support Using the Ascii Terminal Interface ATI Accessing the ATIConnecting to the Terminal Port Select Initiating an ATI Session Use the screen format Screen Work AreasScreen Format Types What Affects Screen Displays Press Status Test Configuration ControlNavigating Keyboard Keys Procedure Example Switching Between Screen Work AreasScreen Function Keys For the screen Select Press Enter to Function Ending an ATI Session Using the Ascii Terminal Interface ATI Configuring the DSU/CSU Entering Device and System InformationMain Menu → Control → Device Configuring the DSU/CSU Configuration Option AreasConfiguration Option Area Configuration Option Set If you select Then Accessing and Displaying Configuration OptionsSaving Configuration Options Main Menu → Configuration Load Configuration From Cross Connect Assignments Assigning DS0 Channels to the Data Port Displaying DS0 Channel Assignments Using the Block or Acami Assignment Method Clearing DS0 Channel Assignments Using the Individual Channel Assignment Method Overview Security Creating a Login Main Menu → Control → Administer LoginsOn the Administer Enter Logins screen, for Resetting the DSU/CSUs COM Port or Factory Defaults Deleting a Login If entering yes to prompt Then ATI Access Effective Access Levels ATI Access to Menu Functions Effective Access Level Controlling Snmp Access Assigning Snmp Community Names and Access LevelsConnection Failed Limiting Snmp Access through the IP Addresses Security IP Addressing IP Addressing IP Addressing Examples Local Addressing Only No FDLSubnet NMS a NMS B FDL Connection ± Extending Subnet for FDL LAN a FDL Connection ± Unique FDL Subnet Assigning IP Addresses and Subnet Masks If using Then assign IP Addressing What to Monitor Monitoring the DSU/CSU Main Menu → Status → Display LEDs DSU/CSU LEDs Fail System LEDs Network LEDs SIG ± Network SignalAlarm EER ± Excessive Error Rate Port LEDs Status Screen Commands System and Test StatusMain Menu → Status → System and Test Status Yyyyyyyy Health and Status Messages Xxxxxxxx Self-Test Results Test Status Messages Meaning Test Status Messages Cross Connect Status Main Menu → Status → Cross Connect StatusNetwork Time Slot Fields top Indicate Main Menu → Status → Network Performance Statistics Network Performance Statistics Interval Table Summary Information Worst Interval Ethernet Port Status Hour TotalsMain Menu → Status → Ethernet Port Status Main Menu → Status → Management Protocol Statistics Management Protocol Statistics March Testing Detecting ProblemsStatus Specific Trap Screen Main Menu → Test Accessing the Test Menu Main Menu → Test → Network Tests Running Network Tests Payload Loopback Line Loopback Repeater Loopback Test Patterns for the Network Remote Send Line Loopback Main Menu → Test → Data Port Tests Running Data Port Tests CSU DSU Data Terminal Loopback Data Channel Loopback Send V.54 Up/Down Sequences Test Patterns for the DTE Send FT1 Up/Down Sequences Ending an Active Test Lamp Test Messages and Troubleshooting Configuring Snmp TrapsSnmp Traps Device Messages 1 What Message Indicates What To Do Device Messages Device Messages 2 What Message Indicates What To Do Troubleshooting 1 Symptom Possible Cause Solutions Troubleshooting Troubleshooting 2 Symptom Possible Cause Solutions Messages and Troubleshooting Select To Access To Configure Configuration Option Tables Self Test Test TimeoutSystem Options Menu Table A-1. System Options Line Coding Format Network Interface Options MenuTable A-2. Network Interface Options 1 Line Framing Format FDL Management Link Bit Stuffing Possible Settings 62411, Part68, DisableLine Build Out LBO Possible Settings 0.0, ±7.5, ±15, ±22.5 Table A-2. Network Interface Options 2 Table A-2. Network Interface Options 3 Network Initiated Line Loopback LLBNetwork Initiated Payload Loopback PLB Table A-2. Network Interface Options 4 Ansi Performance Report MessagesCircuit Identifier Synchronous Data Port Assignments Assign By Available Settings Block, ACAMI, ChannelCross Connect Assignments Table A-3. Cross Connect Assignments Invert Transmit Clock Data Port Options MenuTable A-4. Data Port Options 1 Port Base Rate Action on Network Yellow Alarm Table A-4. Data Port Options 2Invert Transmit and Received Data Table A-4. Data Port Options 3 Port Use Possible Settings 802.3, Version 2, Disable Ethernet Port Options MenuTable A-5. Ethernet Port Options 1 Character Length Terminal Port OptionsTable A-5. Ethernet Port Options 2 Table A-6. Terminal Port Options 1 Stop Bits Login RequiredPort Access Level Possible Settings Level 1, Level 2, Level Table A-6. Terminal Port Options 2 Telnet Session Options Table A-6. Terminal Port Options 3Table A-7. Telnet Session Options 1 Table A-7. Telnet Session Options 2 Snmp Menu General Snmp Management OptionsTable A-8. General Snmp Management Options 1 Table A-9. Snmp NMS Security Options 1 Name 2 AccessSnmp NMS Security Options Table A-8. General Snmp Management Options 2 Table A-9. Snmp NMS Security Options 2 Access Level Number of Trap Managers Snmp Traps OptionsTable A-10. Snmp Traps Options 1 Snmp Traps Link Trap Interfaces Link Traps Possible Settings Disable, Up, Down, BothTable A-10. Snmp Traps Options 2 Enterprise Specific Traps Worksheets Configuration WorksheetsConfiguration Option Settings default in Bold Enable, Disable Disable, Enable ESF, D4Blank Internal, External Nx64, Nx56 Ethernet Port Configuration Option Settings Snmp NMS Security Snmp Worksheets MIB II ± RFC 1213 and RFC MIB Descriptions System Group SysDescr systemSysName system Internet 4 ± Layer Interfaces GroupPhysical 1 ± Layer Datalink/subnetwork EthernetCsmacd6 ± Used for Version Hardware Revision º Up1 Testing3 state IfInErrors ifEntryIfInOctets ifEntry Extension to Interface Table ifXTable IfName ifXEntryIfXEntry Interface Stack Group IfStackEntry1IfStackEntry2 Interface Test Table Generic Receive Address TableIP Group On next InvalidExist. The following objects must Be specified Do not specify the following Icmp GroupTCP Group UDP Group Transmission Snmp GroupTransmission Group Table C-6. Transmission Group Objects Description Dsx1ESF2 ± Indicates DS1 Near End Group Configuration Table ObjectsDsx1ConfigEntry DS1/E1 ± RFC Dsx1SendNoCode1 ± Dsx1SendResetCode4 ±Dsx1B8ZS2 ± Indicates Dsx1AMI5 ± Indicates Dsx1PayloadLoop2 ± Dsx1NoAlarm1 ± NoDsx1LossOfSignal64 ± Dsx1NoLoop1 ± The T1 Dsx1other1 ± Snmp LoopTiming1 ±LocalTiming2 ± ThroughTiming3 ± Dsx1CurrentEntry DS1 Near End Group Current Table Objects DS1 Near End Group Interval Table Objects Dsx1IntervalEntryDsx1IntervalEntry10 Dsx1TotalEntry DS1 Near End Group Total Table Objects Number of RS-232-Like Ports Object Ethernet-Like MIB ± RFCRS-232-Like MIB ± RFC DS1 Fractional Group Rs232PortEntry Disabled2 ± Does not Asynchronous Port Table ObjectsRs232AsyncPortEntry Rs232SyncPortEntry Synchronous Port Table Objects Rs232InSigEntry Input Signal Table Objects Rs232OutSigEntry Output Signal Table Objects TestMon Qrss wellKnownTests Generic Interface Extension MIB ± RFCGeneric Interface Test Table Objects IfExtnsTestEntry ± Starts a Monitor 511 test on the interface NotSupported4 ± Requested InSyncNoBitErrorsInSyncWithBitErrors InProgress3 ± Test is Device Traps, pdn-traps pdn-common Device Configuration Variable pdn-commonEnterprise MIB Object Device Security, pdn-security pdn-common MIB Descriptions Snmp Trap Description Possible Cause Standards Compliance for Snmp TrapsTrap warmStart Trap authentificationFailure Traps linkUp and linkDown Interface LinkUp/Down Variable-Bindings Possible Cause Trap What It Indicates Possible Cause Traps enterpriseSpecificPage Standards Compliance for Snmp Traps Cabling Overview Cables and Pin Assignments Modular RJ48C-to-CA81A T1 Network Interface Cable Modular RJ48C-to-RJ48C T1 Network Interface Cable Use Pin # Terminal Port EIA-232 Connector10BaseT Connector Signal Direction Pin # Pin Serial Crossover Cable DTE V.35 Connector SignalDirection Pin Socket Connector Cables and Pin Assignments Model 7112 DSU/CSU Technical Specifications 1 Technical Specifications Model 7112 DSU/CSU Technical Specifications 2 Glossary Channel allocation Configuration optionDefault Digital signal Enterprise-specific Factory defaultsEIA-232 Enterprise MIB Multiplexing ResetLoopback Manager Snmp Subnet address RS-232Self-test Subnet Yellow Alarm In-8 patternPattern Numbers Index IN-2 IN-3 IN-4