Cisco Systems UBR10012 manual IN-6

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Index

Cisco uBR10012 Universal Broadband Router Troubleshooting Guide

	IN-6	OL-1237-01

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Contents Corporate Headquarters Text Part Number OL-1237-01Copyright 2001-2004, Cisco Systems, Inc All rights reserved N T E N T S ARP Traffic Testing with Digital Multimeters and Cable Testers B-1 OL-1237-01 Purpose AudienceChapter Description Document OrganizationRelated Documentation Cisco.com Obtaining DocumentationDocumentation Feedback Ordering DocumentationOpening a TAC Case Obtaining Technical AssistanceCisco TAC Website Obtaining Additional Publications and Information TAC Case Priority DefinitionsXii Basic Troubleshooting Checklist Basic Troubleshooting Tasks and Startup IssuesConfirming the Hardware Installation Last reset from power-on Displaying the Cisco IOS Software VersionHardware Troubleshooting Flowchart Displaying System Environment InformationCisco uBR10012 System Startup Sequence TCC+Startup Event Event Description PEM Faults and Fan Assembly Failures AC PEM FaultsFault Symptom Corrective Action Color DescriptionDC PEM Faults DC PEM Front Panel original model, UBR10-PWR-DC 2400W AC-Input Power Shelf AC OK Other Electrical ProblemsFault DC OKFan Assembly Module Faults Fan Assembly ModuleFan Assembly Air Circulation Pattern MULTI-FAN Failure LED Symptom Steps to TakeSingle FAN Failure OL-1237-01 Troubleshooting PRE-1 Modules Message Description PRE Module Not SupportedPRE-1 Module Status Screen IOS Intf Booting Up with Redundant PRE-1 ModulesIOS Prot IOS RUNPRE-1 Module Faults Fault Steps to Take LEDEthernet Connection Problems C10000config#interface fastethernet0/0/0Console Port Serial Connection Problems Troubleshooting Common System Problems Troubleshooting System CrashesHigh CPU Utilization Problems ARP TrafficRouterconfig-if# ip access-groupnumber Exec and Virtual Exec Processes Cpuhog ErrorsDebug and System Messages IP Input Processing Invalid Scheduler Allocate ConfigurationInterrupts are Consuming a Large Amount of Resources Snmp Traffic Bus ErrorsProblems with Access Lists Region Manager Start End Sizeb Class Media Name 0x0A000000 Memory Problems Alignment ErrorsLow Memory Errors Memory Parity ErrorsParticle Pool Fallbacks Spurious Interrupts Spurious Memory Accesses OL-1237-01 Troubleshooting Line Cards General Information for Troubleshooting Line Card Crashes Command DescriptionSIG Value SIG Name Error Reason Sigreload Cache Parity ErrorsSigerror Bus Errors Software-Forced Crashes Troubleshooting Line Cards TCC+ Front Panel Status Description PowerMaintenance Fault Type Response Show controllers clock-reference command Troubleshooting the OC-12 Packet-Over-SONET Line Card Fault Corrective Action RX CARRIER-A RX CARRIER-BActive Enabled PASS-THROUGHPOS EnableFail SRPPass Thru SyncWrap Troubleshooting the Gigabit Ethernet Line Card Gigabit Ethernet Line Card Faceplate and LED DescriptionsGigabit Ethernet Line Card Faults and Recommended Responses OL-1237-01 Password Recovery Procedure Overview Password Recovery ProcedurePress Return. The user Exec prompt appears Change all three passwords using the following commands OL-1237-01 Unsupported Commands Unsupported Frame Relay CommandsHccp Commands Mlppp CommandsSpectrum Management Commands Unsupported Mpls VPN CommandsUnsupported PPP Commands Unsupported Telco-Return CommandsOL-1237-01 Testing with Digital Multimeters and Cable Testers Equipment DescriptionTesting with OTDRs Testing with TDRs and OTDRsTesting with TDRs Testing with Network Monitors Testing with Breakout Boxes, Fox Boxes, and BERTs/BLERTsTesting with Network Analyzers Bert Enable LEDActive LED BlertMAINTENANCE, TCC+ ENABLE, OC-48 DPT/POSMAINTENANCE, OC-12 SRP/DPT POWER, OC-12 DPT/SRP POWER, TCC+ STATUS, OC-12 DPT/SRP STATUS, TCC+ SYNC, OC-48 DPT/POS Maintenance LED Power LED TX, OC-48 DPT/POS WRAP, OC-48 DPT/POSRX Carrier LED RX LED OC-12 DPT/SRP TCC+Present LED TCC+ RX Pkts LEDWrap LED TDR B-2TX LED OC-48 DPT/POS IN-6