OL-1237-01 | Cisco Systems UBR10012 instruction

Contents

Cisco uBR10012 Universal Broadband Router Troubleshooting Guide

	vi	OL-1237-01

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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 Cisco.com Obtaining DocumentationDocumentation Feedback 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 AC OK Other Electrical ProblemsFault 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 IOS Intf Booting Up with Redundant PRE-1 ModulesIOS Prot 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 POS EnableFail 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 Spectrum Management Commands Unsupported Mpls VPN CommandsUnsupported PPP 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 Bert Enable LEDActive LED Blert MAINTENANCE, 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/POS RX Carrier LED RX LED OC-12 DPT/SRP TCC+Present LED TCC+ RX Pkts LED TDR B-2 TX LED OC-48 DPT/POSWrap LED IN-6