Troubleshooting the Unit, Unit Problems | Black Box LRU4240 guide

Dual Trunk E1 Router

Troubleshooting

TROUBLESHOOTING THE UNIT

This section describes problems you may encounter and provides suggested methods to troubleshoot and resolve the problems.

UNIT PROBLEMS

A list of possible problems is given in Table 11-1, along with suggested solutions for each.

Table 11-1 Unit Problems (1 of 4)

Symptom	Probable Cause	Solution

The LRU4240 does not power up. • Unit not plugged in.

• Loose power connector.

• PDU (Power Distributor Unit) isn’t powered up/on.

• Blown fuse on LRU4240.

• Reversed power leads from DC supply (standalone).

•Make sure the unit is plugged into a live AC outlet, if the unit is AC powered. If the shelf is DC powered, make sure the respective DC leads are not crossed.

•Check to assure that all fuses are operational; replace as needed. If the problem persists, call Black Box Technical Support for assistance.

The LRU4240 system does not	• Miscellaneous configuration on
dial out when an alarm occurs.	Alarm Menu-8C.
	• Modem strings 8E not correct.
	• Wrong cable.
	• No modem attached.

•Make sure the connection between the COMM Port and the modem is a crossover (null) modem connection.

•A DCE Port is represented the same way as the modem port.

•Make sure Connection is set to Modem and two valid telephone numbers are set in Phone Number 1 and Phone Number 2 in Menu-8C.

•Make sure Block all Alarms is set to No in Menu-8A and the occurring alarm is set to Enabled.

•If the above solutions do not correct the problem, call Black Box Technical Support for assistance.

Dual Trunk E1 Router User’s Guide

TECHNICAL: 0118 96 56 000

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Black Box LRU4240 manual Troubleshooting the Unit, Unit Problems, Symptom Probable Cause Solution

Contents

0118 96 55 LRU42400118 96 56 0870 90 10 Switzerland Spain Austria SwedenFrance Italy Deutschland Denmark Dual Trunk E1 Router User’s Guide Technical 0118 96 56 Copyright ISO Compliance Customer Information Regulatory Information Preface Access Configuration Bridging Configuration Firewall Configuration Troubleshooting Appendix B, Cable and Connector Pin Assignments 101 Dual Trunk E1 Router Dual Trunk E1 Router Dual Trunk E1 Router Dual Trunk E1 Router Index 203 Dual Trunk E1 Router Dual Trunk E1 Router Dual Trunk E1 Router Dual Trunk E1 Router SALES0870 90 10 Preface AudienceOrganization Conventions Symbols Telephone 0118 96 56 Typeface or Symbol Purpose ExampleTypography Black BOX Technical Support All suggestions and comments are appreciated Returning a UnitSend US Your Comments Black Box Product Overview Product Overview Redundancy ApplicationsDual independent links application Load balancing Multilink application Monitoring the Entire WAN Protocol Stack Monitoring Higher Protocol LayersProvided with Level 2 Option for Level 2 Unpacking and Checking Equipment InstallationPackage Contents Before YOU Install Site Requirements Installation Installing the Dual Trunk E1 RouterInstallation Using AC Power Back Panel View-Ports and Ground Stud Installation Using DC Power Dual Trunk E1 Router Terminal Setup Navigating the Front PanelButton Function Description 7 8 9 j k l m EFS Field Default DisplayConfiguration Options Front Panel Display Self Test appears on the display Following table lists the configuration optionsTest Options Option Definition To Stop a Test Terminal User Interface ModeMonitor Option Write Access Monitor Options Setting a Menu Parameter Terminal Interface NavigationAttaching to a Terminal Hyperterm Windows Setup Using the Ethernet port as management interfaceUsing Terminal Software Terminal Setup Type a File Name, choose an icon then click OK COM1 Properties box appears for Port Settings Set the following Logging On from a Terminal Adjusting Comm Port Settings Logging Off from a TerminalLogging on from a Telnet Connection Configuring Access Rights Assigning User PasswordsEnter the Normal User or Super User password Access Configuration Overview of Access ConfigurationProcedure Description Menu Reference Dual Trunk E1 Router Procedure Steps Configuring LAN InterfaceSetting ID, DATE, TIME, and Network Timing Unit Configuration− Menu 4A Main/Alt Sync INT, NET1, NET2 Date Net Configuration and Status Configuring Timeslot AllocationsSet allocation type to Contiguous Configuring Single Link PPP Interface Configuring WAN Protocol Procedure Purpose Configuring independent PPP links InterfacesConfiguring Mlppp Interface Configuring PPP Protocol Parameters Configuring Frame Relay DLCIs Configuring single link Frame RelayConfiguring independent Frame Relay links Configuring Multilink Frame Relay Mapping DLCIs to IP Addresses Configuring SlipManual Dlci configuration ProcedureSteps Configuring Radius Authentication Configuring TUI Access Rights Select Authentication Response Timeout Select Authentication Retries ENABLING/DISABLING Traffic Monitoring Configuring Snmp Configuring Time and Date Synchronization Select Menu-$K Configuring Dhcp Bridging Configuration Overview of the ConfigurationBridging Configuration Managing the unit in Bridging mode Vlan Forwarding supportBridging Application Examples Dual Trunk E1 Router Set Bridge Route Aging Time in seconds Configuring BridgingConfiguring static MAC Bridge Routes Select Menu-$A Select the Action field of the entry you want to delete Displaying MAC to Port Map TableSelect Menu-$GA Set the Action field to Add Configuring the Firewall Routing Configuration Configuring Default Gateway Configuring Routing Mode Configuring Static Routes Set the Action field 5 to Add Select the Destination IP field of an inactive route Configuring Dynamic Routing Configuring NATLoad balancing over independent links Menu Description NAT Configuration menus Select menu-$JE Configuring NAT for single link ISPSelect menu-$JAGlobal Map Table Select Menu-$JC Configuring NAT for Multihoming Single link Internet ExampleSet subnet mask to Configuring NAT for Internet access and Frame Relay network NET1 to ISP1 with single global IP addressNET2 to ISP2 with 4 global IP address starting from Configuring bundled internet access and Frame Relay network Configuring the Firewall Firewall Configuration To add an entry to the access list Select the Ord field 1 of an inactive route lineSelect the Status field 6 of the selected active route Performing Tests from the Front Panel DiagnosticsIndicators Description Required Tools and Equipment Loop NET Test Loopback Tests Loop Up Remote and Loop Down Remote Tests Loop Payload Test Send Test Type Pattern Test Description Pattern TestsQRW Pattern Test Other Pattern Tests Lamp Test Performing Diagnostics from Telnet Performing Diagnostics from the TerminalMenu-9 Diagnostics Menu-9A Physical Layer Diagnostics Test Link Layer Diagnostics and Delay Monitoring Menu-9B-Link Layer Diagnostics Link-based Testing for Public Packet NetworksDelay Monitoring for TCP/IP Non-Disruptive Testing Select the Test Length Select the test packets lengthPress S to start the test Dual Trunk E1 Router Monitoring and Management Monitoring and Management Performance Report Menus Terminal User Interface Access MethodsMonitoring Performance Displaying Performance Reports Days. up to 32 screens Performance Data Report Events Event LogEvent Description Routing Monitoring Delay Monitoring IN-BAND Management Monitoring StatusMenu-1 Main Status Menu-2 Data Status FTP Control FTP Data Telnet Smtp e-mail In-band Network Registers, 24 Hour DetailProtocol Directory Field Definition Network Layer and Application Layer Host Tables Protocol Distribution Network Layer and Application LayerMatrix Tables Dual Trunk E1 Router Alarms Configuring Alarm ConditionsHow Alarm Reports Are Displayed Menu-8E Modem Initialization Strings Menu-8 AlarmMenu-8A Alarm Configuration Menu-8C Miscellaneous Management Configuration Symptom Probable Cause Solution TroubleshootingTroubleshooting the Unit Unit Problems Unit Problems 2 Unit Problems 3 Ctrl-L Network Problems Network Problems 2 Network Problems 3 Network Problems 4 Dual Trunk E1 Router LRU4240 Network Interface SpecificationsTechnical Specifications Performance Environmental Power OptionsLRU4240 Diagnostics Physical Alarm Parameters Dual Trunk E1 Router Configuration Factory Default Settings Your Configuration Comm Port and Terminal Configuration Modem String ConfigurationEthernet Configuration 100 Sales 0870 90 10 Dual Trunk E1 Router User’s Guide Technical 0118 96 56 101 Cable and Connector Pin AssignmentsRJ48 Pin Signal E1 Network PIN Assignments Table B-7 describes the Comm Port RJ45 pin assignments RJ45 Pins Signal DescriptionCommunication Port PIN Assignments DE-9 to DB-25 Adapter Pin Assignments Software Download Software UpgradeUsing the Download Menu Utility Setting Up for Tftp Error Indicators Error Error Type Indicator Description MessageAbnormal Termination Download Aborted by User Group Field DescriptionDual Trunk E1 Router User’s Guide Technical 0118 96 56 105 106 Sales 0870 90 10 Programming software upgrades remotely SOFTWARE-ONLY Upgrades Changing softwareDual Trunk E1 Router User’s Guide Technical 0118 96 56 107 108 Sales 0870 90 10 Menus Menu Number Name DescriptionDual Trunk E1 Router User’s Guide Technical 0118 931 109 110 Sales 0118 965 Dual Trunk E1 Router User’s Guide 119 Dual Trunk E1 Router User’s Guide Technical 0118 931 111 Up to 32 screens 112 Sales 0118 965 Dual Trunk E1 Router User’s Guide 127 Parameter Parameter-Options Definition 114 Sales 0118 965 Devices on the same networkIP Address/Len Icmp Redirect Dual Trunk E1 Router User’s Guide Technical 0118 931 115 Parameter Parameter Options Definition 116 Sales 0118 965 Default DisabledDefault Parameter Parameter- Options Definition Default 0% Indication DescriptionTechnical 0118 931 117 Background Block Error BBE 118 Sales 0118 965 Event Default Dual Trunk E1 Router User’s Guide Technical 0118 931 119 Outage State 120 Sales 0118 965 Last Sample Time Defer Transmit FCS ErrorsCarrier Sense Errors Single Collisions Reassembly Successful Header Errors ReceivedAddress Errors Received Reassembly Required Echo Replies Rx Errors TransmittedParameter Problems Tx Echos Rx 124 Sales 0118 965 Parameter Description Default Dual Trunk E1 Router User’s Guide Technical 0118 931 125 Time/Date Automatic Sync Default Disabled How OftenNET 1/2 Framing Line Impedence Paramete Description Default Carrier Loss Alarm-Enabled, Disabled Parameter DefaultPrimary Parameter-Options Parameters Definition Default Block All Alarms-Yes, No DLC IBC Link Loss Alarm-Enabled or Disabled RAI Received Alarm-Enabled, DisabledNormal User Password-text string Super User Password-text string 130 Sales 0118 965 Field Definition Options DefaultCurrent Test Pattern Test Code Violations Pattern Error CounterCRC or CRC4 Errors Frame Error Event 132 Sales 0118 965 Type Parameter Definition DefaultPattern Current Primary Parameter-Options Definition Default Parameter-Definition Default Indication Definition Address Definition Dhcp Relay Dhcp ServerDual Trunk E1 Router User’s Guide Technical 0118 931 135 136 Sales 0118 965 Select Menu-8X from the TUI Router Command Line Interface ReferenceAccess to Router Command Line Configuring the router automatically 138 Sales 0870 90 10 Router Command Line Help Dual Trunk E1 Router User’s Guide Technical 0118 96 56 139 Topic Description 140 Sales 0870 90 10 CLI Command ModesMode Description Ospf to enter Ospf mode Unit Command Reference Show unit id Configure terminalShow running-config Quit Interface Ifname icmp-redirect E1 framingE1 line-impedance E1 timeslot Interface enet Interface frame-relay dlciInterface frame-relay lmi Ip dhcp-relay Interface frame-relay mapInterface frame-relay map clear Ip bridge static-route Ip nat static Ip natIp nat global Ip nat local-addr Ip route load-balancing Ip route default-gatewayIp route mode Ip route bridge-route-aging-time Multilink Ip route vlan-idIp route vlan-priority Ip static-route clear Time-zone T1 lboT1 timeslot Time-sync Unit clock Unit alarmTraffic type Unit ansi-fdl Unit outage Unit yellow-alarmWan-port in-service Unit modem 152 Sales 0870 90 10 Kernel Command ReferenceInterface Ifname Debug zebos events Specifies the debug option-set for receive packet Command Mode Enable connected Connected Command Syntax show running-configCommand Mode enable154 Sales 0870 90 10 RIP Command Reference Router ripDebug rip Ip rip send-packet DistanceIp rip receive-packet Ip rip receive version Dual Trunk E1 Router User’s Guide Technical 0118 96 56 157 Ip rip send versionIp rip send version 1-compatible Ip split-horizon Route NeighborNetwork Passive-interface Show ip protocols Command Syntax show debugging rip Command Mode EnableCommand Syntax show ip protocols Command Mode Enable Show debugging rip Show ip rip Command Syntax show running-configCommand Mode ripCommand Syntax show ip rip Command Mode Enable Timers Version Ospf Command ReferenceArea authentication Command Mode Router mode Usage Area import-list Related CommandsArea default-cost Area export-list Dual Trunk E1 Router User’s Guide Technical 0118 96 56 163 Command ModeArea range Area shortcut Area virtual-link Area stub Dual Trunk E1 Router User’s Guide Technical 0118 96 56 165 Auto-cost Compatible rfc1583 Debug ospf eventDebug ospf ism Debug ospf nsm Debug ospf lsa 168 Sales 0870 90 10 Debug ospf packetDebug ospf route Debug ospf zebos Dual Trunk E1 Router User’s Guide Technical 0118 96 56 169 Default-information originateDefault-metric Command Syntax default-metric1-16777214 170 Sales 0870 90 10 Command Syntax description LineDescription Distribute-list Ip ospf authentication-key Related Commands ip ospf authentication Usage 172 Sales 0870 90 10 Command Mode Interface mode UsageIp ospf cost Ip ospf database-filter Ip ospf hello-interval Related Commands ip ospf dead-interval Ip ospf priority Default Broadcast type Command Mode interface mode UsageEquivalent Commands Ip ospf network Related Commands ip ospf transmit-delay Ip ospf retransmit-intervalDual Trunk E1 Router User’s Guide Technical 0118 96 56 175 Match interface LoginCommand Syntax no login Default Command Syntax match interface Ifname no match interface Dual Trunk E1 Router User’s Guide Technical 0118 96 56 177 Match metricMatch route-type external Match tag 178 Sales 0870 90 10 Network area Opaque Opaque-lsa-capableDual Trunk E1 Router User’s Guide Technical 0118 96 56 179 180 Sales 0870 90 10 Ospf authentication-keyOspf abr-type Ospf cost Ospf hello-interval Ospf dead-interval Ospf priority Equivalent Commands ip ospf hello-intervalCommand Syntax ospf priority Ospf network Ospf router-id Ospf transmit-delay Refresh timer Command Mode 184 Sales 0870 90 10Redistribute Router ospf Command Syntax router-id IpaddressCommand Syntax no router ospf Router-id 186 Sales 0870 90 10 Command Syntax no set metric-typeSet next-hop Set tag Show ip ospf Command Mode Priviledged Exec mode UsageCommand Syntax show ip ospf Show debugging ospf 188 Sales 0870 90 10 Show ip ospf border-routers Dual Trunk E1 Router User’s Guide Technical 0118 96 56 189 Show ip ospf database 190 Sales 0870 90 10 Command Mode Priviledged Exec mode Usage ExamplesShow ip ospf database asbr-summary Show ip ospf database external Dual Trunk E1 Router User’s Guide Technical 0118 96 56 191 Show ip ospf database network 192 Sales 0870 90 10 Show ip ospf database opaque-area Show ip ospf database opaque-link Show ip ospf database routerDual Trunk E1 Router User’s Guide Technical 0118 96 56 193 194 Sales 0870 90 10 Show ip ospf database summary Show ip ospf interface 196 Sales 0870 90 10 Show ip ospf neighbor Command Syntax show ip ospf route Show ip ospf routeDual Trunk E1 Router User’s Guide Technical 0118 96 56 197 Command Syntax show ip protocols Command Mode 198 Sales 0870 90 10Show memory all Ospf Lsdb Dual Trunk E1 Router User’s Guide Technical 0118 96 56 199 200 Sales 0870 90 10 Show memory lib Show memory ospf Timers spf Related Commands 202 Sales 0870 90 10Summary-address Data Index Requirements Passwords Index 205 206