Cisco Systems UBR10012 manual OL-1237-01

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Contents

Cisco uBR10012 Universal Broadband Router Troubleshooting Guide

	vi	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 AudienceDocument Organization Related DocumentationChapter Description Cisco.com Obtaining DocumentationDocumentation Feedback Ordering DocumentationObtaining Technical Assistance Cisco TAC WebsiteOpening a TAC Case 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 Symptom Steps to Take Single FAN FailureMULTI-FAN Failure LED OL-1237-01 Troubleshooting PRE-1 Modules PRE Module Not Supported PRE-1 Module Status ScreenMessage Description 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 Cpuhog Errors Debug and System MessagesExec and Virtual Exec Processes Invalid Scheduler Allocate Configuration Interrupts are Consuming a Large Amount of ResourcesIP Input Processing Bus Errors Problems with Access ListsSnmp Traffic 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 Cache Parity Errors SigerrorSigreload Bus Errors Software-Forced Crashes Troubleshooting Line Cards TCC+ Front Panel Power MaintenanceStatus Description Fault Type Response Show controllers clock-reference command Troubleshooting the OC-12 Packet-Over-SONET Line Card Fault Corrective Action RX CARRIER-B ActiveRX CARRIER-A Enabled PASS-THROUGHPOS EnableFail SRPSync WrapPass Thru 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 TDRs and OTDRs Testing with TDRsTesting with OTDRs 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 LEDPower 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 LEDTDR B-2 TX LED OC-48 DPT/POSWrap LED IN-6