OL-1237-01 | Cisco Systems UBR10012 specs

Chapter 3 Troubleshooting PRE-1 Modules

Troubleshooting Common System Problems

Cisco uBR10012 Universal Broadband Router Troubleshooting Guide

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Cisco Systems UBR10012 manual OL-1237-01

Contents

Corporate Headquarters Text Part Number OL-1237-01 Copyright 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 Audience Document Organization Related DocumentationChapter Description Obtaining Documentation Documentation FeedbackCisco.com Ordering Documentation Obtaining Technical Assistance Cisco TAC WebsiteOpening a TAC Case Obtaining Additional Publications and Information TAC Case Priority Definitions Xii Basic Troubleshooting Checklist Basic Troubleshooting Tasks and Startup Issues Confirming the Hardware Installation Last reset from power-on Displaying the Cisco IOS Software Version Hardware Troubleshooting Flowchart Displaying System Environment Information Cisco uBR10012 System Startup Sequence TCC+ Startup Event Event Description PEM Faults and Fan Assembly Failures AC PEM Faults Fault Symptom Corrective Action Color Description DC PEM Faults DC PEM Front Panel original model, UBR10-PWR-DC 2400W AC-Input Power Shelf Other Electrical Problems FaultAC OK DC OK Fan Assembly Module Faults Fan Assembly Module Fan 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 Booting Up with Redundant PRE-1 Modules IOS ProtIOS Intf IOS RUN PRE-1 Module Faults Fault Steps to Take LED Ethernet Connection Problems C10000config#interface fastethernet0/0/0 Console Port Serial Connection Problems Troubleshooting Common System Problems Troubleshooting System Crashes High CPU Utilization Problems ARP Traffic Routerconfig-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 Errors Low Memory Errors Memory Parity Errors Particle Pool Fallbacks Spurious Interrupts Spurious Memory Accesses OL-1237-01 Troubleshooting Line Cards General Information for Troubleshooting Line Card Crashes Command Description SIG 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-THROUGH Enable FailPOS SRP Sync WrapPass Thru Troubleshooting the Gigabit Ethernet Line Card Gigabit Ethernet Line Card Faceplate and LED Descriptions Gigabit Ethernet Line Card Faults and Recommended Responses OL-1237-01 Password Recovery Procedure Overview Password Recovery Procedure Press Return. The user Exec prompt appears Change all three passwords using the following commands OL-1237-01 Unsupported Commands Unsupported Frame Relay Commands Hccp Commands Mlppp Commands Unsupported Mpls VPN Commands Unsupported PPP CommandsSpectrum Management Commands Unsupported Telco-Return Commands OL-1237-01 Testing with Digital Multimeters and Cable Testers Equipment Description Testing with TDRs and OTDRs Testing with TDRsTesting with OTDRs Testing with Network Monitors Testing with Breakout Boxes, Fox Boxes, and BERTs/BLERTs Testing with Network Analyzers Enable LED Active LEDBert Blert ENABLE, OC-48 DPT/POS MAINTENANCE, OC-12 SRP/DPTMAINTENANCE, TCC+ POWER, OC-12 DPT/SRP POWER, TCC+ Maintenance LED Power LEDSTATUS, OC-12 DPT/SRP STATUS, TCC+ SYNC, OC-48 DPT/POS TX, OC-48 DPT/POS WRAP, OC-48 DPT/POS OC-12 DPT/SRP TCC+ Present LED TCC+RX Carrier LED RX LED RX Pkts LED TDR B-2 TX LED OC-48 DPT/POSWrap LED IN-6