Line Loopback, Llb | Paradyne 9123 instruction

Troubleshooting

Line Loopback

The local Line Loopback (LLB) loops the information received on the selected interface back to the source of the loopback. When used with a pattern test at the remote node, LLB determines whether the problem is with the sending device or the T1 facility.

Main Menu → Test → Network Physical Tests

Other	All
T1
Interface	1s

Framer

	LLB	The T1
	LLB	Interface
		Interface

97-15336

CAUTION:

This test may affect the operation of the frame relay PVCs assigned to the selected port. While in loopback, the frame relay link will be down so any IP data being sent while this test is active will be disrupted.

An LLB cannot be started when one of the following tests is active:

HPayload Loopback, Send Remote Line Loopback, or an active Monitor Pattern on this network interface.

HSend Pattern test on this network interface.

9123-A2-GB20-00

May 2000

6-21

Image 171

Paradyne 9123 manual Line Loopback, Main Menu → Test → Network Physical Tests, Llb

Contents

FrameSaver Flex Copyright E 2000 Paradyne Corporation All rights reserved Contents Configuration Security and Logins Troubleshooting Menu Hierarchy Index About This Guide Purpose and Intended AudienceDocument Organization Devices. Describes setup of the NetScout Manager Plus Setting Up OpenLane for FrameSaver Devices. IdentifiesWhere installation and setup information is located and how Setting Up NetScout Manager Plus for FrameSaver Product-Related Documents Highlighted text When viewing this manual online. Click onConventions Used To indicate a hyperlink to additional information About the FrameSaver Flex System OverviewSystem Overview FrameSaver Flex Feature Sets Flex Flex SLV Feature Feature Set Basic Advanced Basic Flex Features Through Connections PVCs Dedicated Management PVCs 9123-A1-211 9123-A1-213 Feature 9123-A1-221 9123-A1-223Maximum Number of PVCs and Management PVCs Supported Models May Advanced Flex SLV Features OpenLane SLM System NetScout Manager Plus and NetScout Probes About the FrameSaver Flex User Interface Basic Operation Logging On Procedure If your login was Then Main Menu SelectMain Menu Service Level Verification System Options Screen Work AreasScreen Format Description Navigating the Screens Keyboard KeysPress Select For the screen Press Enter to Function Function Keys Selecting from a Menu Switching Between Screen Areas Selecting a Field Entering InformationExample User Interface and Basic Operation Configuration Configuration Basic Configuration Configuration MenuConfiguration EDIT/DISPLAY Configuration Option Area Description Configuration Option Areas Main Menu → Configuration Accessing and Displaying Configuration Options Configuration → PVC Connections Changing Configuration Options Saving Configuration Options Using the Easy Install Feature Main Menu → Easy InstallEasy Install Screen Example Default If the selection is Unit is configured to operate Main Menu → Control → System Information Setting Up So the Router Can Receive RIPEntering System Information Setting the System Clock Configuration → Data Ports → Dlci Records AUTO-CONFIGURATION Setting Up Auto-ConfigurationMain Menu → Auto-Configuration Auto-Configuration Screen Example Selecting a Frame Relay Discovery Mode Main Menu → Auto-Configuration → Frame Relay Discovery ModeDiscovery Mode Configuration Description 9123-A2-GB20-00 May Automatically Removing a Circuit Setting Up Back-to-Back Operation Changing Operating ModeMain Menu → Control → Change Operating Mode Configuring the Overall System Configuration Option Tables LMI Behavior Configuring Frame Relay and LMI for the SystemMain Menu → Configuration → System → Frame Relay and LMI System Frame Relay and LMI Options 1 LMI Status Enquiry N1 Possible Settings 1, 2, 3, 4 System Frame Relay and LMI Options 2Traffic Policing System Frame Relay and LMI Options 3 LMI Heartbeat T1 Possible Settings 5, 10, 15, 20, 25 Service Level Verification Options 1 Configuring Service Level Verification Options Service Level Verification Options 2 SLV Timeout Clearing Event ThresholdSLV Packet Size bytes Configuring General System Options Main Menu → Configuration → System→ GeneralGeneral System Options Network Physical Interface Options 1 Configuring the Physical InterfacesConfiguring the Network Interface Main Menu → Configuration → Network → Physical Network Initiated LLB Network Physical Interface Options 2Bit Stuffing Transmit Timing Ansi Performance Report Messages Network Initiated Dclb Possible Settings Disable, V.54&ANSINetwork Physical Interface Options 3 Network Initiated PLB Circuit Identifier Network Physical Interface Options 4 Transmit Clock Source Configuring the User Data PortMain Menu → Configuration → Data Ports → Physical Data Port Physical Interface Options 1 Data Port Physical Interface Options 2 Monitor RTS ControlPort DTE Initiated Loopbacks Main Menu → Easy Install → Time Slot Assignment Screen Assigning Time Slots/Cross ConnectionsAssigning Frame Relay Time Slots to the Network Interface Frame Relay Network 1 Assignment Frame Relay Network Time Slot Assignment Screen ExampleValue Meaning Time Slot Assignment Rule Select Frame Relay Network Assignments Assigning the Synchronous Data Port to Network Time Slots Synchronous Data Port Assignment Screen ExampleSync Data Port Assignment Clearing Assignments Interface Frame Relay Options 1 Configuring Frame Relay for an Interface LMI Parameters Interface Frame Relay Options 2 Frame Relay DS0s Base Rate Interface Frame Relay Options 3 Dlci Record Options 1 Manually Configuring Dlci RecordsMain Menu→ Configuration→ Network/Data Port→ Dlci Records Dlci Type Possible Settings Standard, Multiplexed Excess Burst Size Bits Dlci Record Options 2CIR bps Committed Burst Size Bc Bits Dlci Record Options 3 Dlci PriorityOutbound Management Priority Configuring PVC Connections Main Menu → Configuration → PVC ConnectionsPVC Connection Options 1 Destination Edlci PVC Connection Options 2Destination Link Destination Dlci Configuring Node IP Information Setting Up Management and Communication Options Node IP Options 1 Node IP Options 2 TS Access Management Link Node IP Options 3 TS Access Configuring Management PVCs 10. Management PVC Options 1Name Primary Link Possible Settings Net1-FR1, Port-1, Clear 10. Management PVC Options 2Set DE 10. Management PVC Options 3 Primary DlciPrimary Edlci Snmp Management Configuring General Snmp ManagementName 1 Access 11. General Snmp Management Options 1 Configuring Telnet and/or FTP Session Support 11. General Snmp Management Options 212. Telnet and FTP Session Options 1 12. Telnet and FTP Session Options 2 Inactivity Timeout FTP Session FTP Login Required12. Telnet and FTP Session Options 3 Disconnect Time Minutes NMS IP Validation Configuring Snmp NMS SecurityAccess Type 13. Snmp NMS Security Options Number of Trap Managers Configuring Snmp Traps14. Snmp Traps Options 1 Snmp Traps Enterprise Specific Traps 14. Snmp Traps Options 2 Link Traps Possible Settings Disable, Up, Down, Both 14. Snmp Traps Options 3Rmon Traps Configuring the Ethernet Port 15. Ethernet Port Options 1Interface Status Proxy ARP Configuring the Communication Port15. Ethernet Port Options 2 16. Communication Port Options 1 16. Communication Port Options 2 16. Communication Port Options 3 RIP 16. Communication Port Options 4 17. External Modem COM Port Options Configuring the COM Port to Support an External ModemExternal Modem Commands Dial-In Access Security and Logins Controlling Asynchronous Terminal Access Limiting Access Set the configuration option Controlling Telnet or FTP Access Controlling External COM Port Device Access Limiting Telnet Access Limiting FTP Access Limiting Telnet or FTP Access Over the TS Management Link Disabling Snmp Access Controlling Snmp Access Assigning Snmp Community Names and Access Levels Limiting Snmp Access Through IP Addresses Creating a Login Main Menu → Control → Administer LoginsField Enter Deleting a Login Modifying a Login Operation and Maintenance Displaying System Information Main Menu → Status → IdentityView this field To find Viewing LEDs and Control Leads Main Menu → Status → Display LEDs and Control LeadsDisplay LEDs & Control Leads Screen TST LED DescriptionsGeneral Status LEDs 1 Label Indication Color What It Means ALM OFF ± General Status LEDs 2 Label Indication Color What It MeansNetwork Interface LEDs Label Indication Color What It Means SIG Network Interface Control Lead DescriptionsUser Data Port LED Label Indication Color What It Means Additional Control Leads Label Indication What It Means Device Messages Device Messages 1 What It Indicates What To DoDlci See Changing Software Device Messages 2 What It Indicates What To Do Device Messages 3 What It Indicates What To Do Software Device Messages 4 What It Indicates What To Do Changes? prompt Device Messages 5 What It Indicates What To Do Status Information Status MenuStatus Self-Test Results Messages Self-Test Results Messages Last System Reset Date and TimeLast System Reset Date and Time System and Test Status Messages Health and Status Messages 1 What It Indicates Health and Status Messages Frame relay link Health and Status Messages 2 What It Indicates Frame relay link 1, 2 Health and Status Messages 3 What It Indicates Test Status Messages 1 What It Indicates Test Status Messages LMI-Reported DLCIs Status Screen Example Network LMI-Reported DLCIs StatusTest Status Messages 2 What It Indicates Main Menu → Status → LMI Reported DLCIs Network LMI-Reported DLCIs Status Field What It Indicates 10. PVC Connection Status 1 Field PVC Connection StatusMain Menu → Status → PVC Connection Status PVC Connection Status Screen Example Edlci 10. PVC Connection Status 2 Field What It Indicates Network Timeslot Assignment Status Screen Example Time Slot Assignment StatusDisplaying Network Time Slot Assignments Main Menu → Status → Timeslot Assignment Status → Network Cross Connect Status Field Indicates Bottom 11. IP Routing Table Values 1 Column What It Indicates IP Routing TableMain Menu → Status → IP Routing Table IP Routing Table Screen Example TTL 11. IP Routing Table Values 2 Column What It Indicates Performance Statistics Performance StatisticsMain Menu → Status → Performance Statistics Performance Statistics Menu Performance Statistics → ESF Line Clearing Performance StatisticsPerformance Statistics → Clear All Statistics Performance Statistics → Frame Relay Service Level Verification Performance Statistics Average round trip latency is measured every SLV sampling Dlci Performance Statistics Main Menu → Status → Performance Statistics → Dlci13. Dlci Performance Statistics 1 What It Indicates CIR&EIR 13. Dlci Performance Statistics 2 What It Indicates 14. Frame Relay Performance Statistics 1 What It Indicates Frame Relay ErrorsFrame Relay Performance Statistics Main Menu → Status → Performance Statistics → Frame Relay Frame Relay Errors contd 14. Frame Relay Performance Statistics 2 What It IndicatesFrame Relay LMI 14. Frame Relay Performance Statistics 3 What It Indicates Frame Relay Hdlc Errors ESF Line Performance Statistics Main Menu → Status → Performance Statistics → ESF LineTo select intervals You must enter an interval or time on ±LOFC±± ESF Line Performance Statistics Screen Example Statistic What It Indicates UASLofc Main Menu → Status → Performance Statistics → Ethernet Ethernet Performance Statistics Trap Event LOG Trap Event LogMain Menu → Status → Trap Event Log Trap Event Log Screen Example FTP File Transfers Dir directory Command Definition If the message displayed is Then Upgrading System Software Changing Software Determining Whether a Download Is Completed If retrieving Then Transferring Collected Data Troubleshooting Indicators See Problem Indicators Resetting the Unit and Restoring Communication Resetting the Unit from the Control MenuResetting the Unit By Cycling the Power If selecting Following occurs Restoring Communication with a Misconfigured Unit Troubleshooting Management Link Feature LMI Packet Capture Utility FeatureMain Menu → Control → LMI Packet Capture Utility LMI Packet Capture Utility → Display LMI Trace Log LMI Trace Log ExampleLMI Trace LOG Alarm Conditions 1 What It Indicates What To Do Alarms Operational appears Alarm Conditions 2 What It Indicates What To Do Alarm Conditions 3 What It Indicates What To Do Alarm Conditions 4 What It Indicates What To Do Viewing the Trap Event Log Troubleshooting TablesDevice Problems Device Problems 1 Symptom Possible Cause Solutions With a Misconfigured Unit Device Problems 2 Symptom Possible Cause Solutions Frame Relay PVC Problems Symptom Possible Cause Solutions Frame Relay PVC Problems Tests Available Test Menu ExampleTest Test Timeout Feature When the status of a test is Only command available isStarting and Stopping a Test Aborting All Tests PVC Tests PVC Tests Screen ExampleNetwork PVC Tests Main Menu → Test → Data Port PVC Tests PVC LoopbackSend Pattern Main Menu → Test → Network PVC Tests Connectivity Monitor Pattern Physical Tests Screen Example Physical Tests Line Loopback Main Menu → Test → Network Physical TestsLLB PLB Payload Loopback RLB AIS Repeater Loopback Send Line Loopback Data Channel Loopbacks on a Frame Relay Link Qrss Send and Monitor Pattern Tests Main Menu → Test → Data Port Physical Tests DTE Loopback Main Menu → Test → IP Ping IP Ping Test Procedure Main Menu → Test → Lamp Test Lamp Test Setting Up OpenLane for FrameSaver Devices OpenLane Support of FrameSaver DevicesOpenLane Support of FrameSaver Devices Setting Up the OpenLane SLM System Setting Up FrameSaver Flex and SLV Support Setting Up OpenLane for FrameSaver Devices Setting Up NetScout Manager Plus for FrameSaver Devices User history AlarmsPreparation Properties Configuring NetScout Manager Plus Procedure Adding SLV Alarms Using a Template Editing Alarms 9123-A2-GB20-00 May Adding SLV Alarms Manually Paradyne Field Select or Enter Creating History Files Procedure Dvuhist -f Dallas51 3 config 30 60 Dallas51k.udh Installing the User-Defined History Files Monitoring a DLCIs History Data May 9123-A2-GB20-00 May Monitoring the Agent Using NetScout Manager Plus Procedure Setting Up NetScout Manager Plus for FrameSaver Devices Setting Up Network Health for FrameSaver Devices Installation and Setup of Network Health Discovering FrameSaver Elements Configuring the Discovered Elements Grouping Elements for Reports About Service Level Reports Generating Reports for a GroupAbout At-a-Glance Reports Reports Applicable to Flex and SLV Devices About Trend ReportsPrinted Reports May 9123-A2-GB20-00 May Setting Up Network Health for FrameSaver Devices Menus Menu Hierarchy Status Menu Hierarchy Frame Relay Mode Easy Install Auto-Configuration Data Ports Assignment Menu Hierarchy Leased Line Mode Control Menu Hierarchy Snmp MIBs and Traps, Rmon Alarm Defaults Downloading MIBs and Snmp Traps MIB Support System Group mib-2 FrameSaver Units sysDescr systemFrameSaver Units sysObjectID system Frame Relay Logical Layer Interfaces Group mib-2Paradyne Indexes to the Interface Table ifTable Physical Layer NetScout Indexes to the Interface Table ifTable Rmon Logical LayerFor the DTE Examples Standards Compliance for Snmp Traps Variable-Binding Trap authenticationFailureTrap warmStart Table B-3. warmStart Trap What It Indicates Possible Cause Traps linkUp and linkDown MIB Physical Sublayer Logical Link Sublayer Physical Sublayer contd DevHealthAndStatus Traps enterprise-Specific SLVs devFrExt.mib Placeholder Traps RMON-Specific Rising Event Operation Rmon Alarm and Event DefaultsEvent Defaults EventIndex EventDescription EventType EventCommunity Physical Interface Alarm Defaults Frame Relay Link Alarm Defaults Snmp MIBs and Traps, and Rmon Alarm Defaults MIB FR DTE MIB Dlci Alarm Defaults ± Paradyne Area Dlci Alarm Defaults ± NetScout Area Rx Dlci Link Object ID Cross-References Numeric Order 6.1.4.1.1795.2.24.2 6.1.2.1.2.2.16.1.2.1.2.10.32.2.1 MIB FR DTE MIB RFC Dlci CIR 6.1.4.1.1795.2.24.2.6.9.4 6.1.4.1.1795.2.24.2.6.9.4.4.2 Dlci EIR 6.1.4.1.1795.2.24.2.6.9.4.7.1 6.1.4.1.1795.2.24.2.6.9.4.5.2.1 6.1.4.1.1795.2.24.2.6.9.4.10.3.1 6.1.2.1.10.32.2.1 Snmp MIBs and Traps, and Rmon Alarm Defaults Snmp MIBs and Traps, and Rmon Alarm Defaults Rear Panel Connectors, Cables, Pin Assignments Function Circuit Direction Pin Number T1 Network Cable Feature No -F1-500Canadian T1 Line Interface Cable Feature No -F1-510 T1 Network Interface Signal Direction Pin # COM Port Connector CD Rlsd RXC DTR Xtxc Standard EIA-232-D Crossover CablePin TXD RXD RTS DSR AT Command String To configure the modem to Direction Pin Socket Data Port ConnectorSignal Standard V.35 Straight-through Cable Ethernet Port Connector Connectors, Cables, and Pin Assignments Technical Specifications Data Port COM PortT1 Network Interface Ethernet Port Equipment Description Model / Feature NumberFrameSaver Flex SLV Upgrade Equipment List NMS Products Description Part Number Feature NumberOptional Features Cables Index ARPCIR CTS Index EIR EER IN-4 LOS LMI NMS IN-6 OID IN-7 Rmon IN-8 Snmp SLV IN-10 IN-11