Cisco Systems UBR10012 manual Obtaining Documentation, Documentation Feedback, Cisco.com

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Preface

Obtaining Documentation

For more information about the IOS software that runs on the Cisco uBR10012 router, see the Cisco IOS command reference books and configuration guides:

Cisco Broadband Cable Command Reference Guide—Describes the cable specific commands used on the Cisco uBR10012 router. See the following URL:

http://www.cisco.com/univercd/cc/td/doc/product/cable/bbccmref/i ndex.htm

Cisco IOS Release 12.2 Configuration Guides and Command References—Describes the commands and configuration used in Cisco IOS Release 12.2. See the following URL:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/ 122cgcr/index.htm

Obtaining Documentation

Cisco documention and additional literature are available on Cisco.com. Cisco also provides several ways to obtain technical assistance and other technical resources. These sections explain how to obtain technical information from Cisco Systems.

Cisco.com

You can access the most current Cisco documentation on the World Wide Web at this URL:

http://www.cisco.com/univercd/home/home.htm

You can access the Cisco website at this URL:

http://www.cisco.com

International Cisco websites can be accessed from this URL:

http://www.cisco.com/public/countries_languages.shtml

Ordering Documentation

You can find instructions for ordering documentation at this URL:

http://www.cisco.com/univercd/cc/td/doc/es_inpck/pdi.htm

You can order Cisco documentation in these ways:

Registered Cisco.com users (Cisco direct customers) can order Cisco product documentation from the Ordering tool:

http://www.cisco.com/en/US/partner/ordering/index.shtml

Nonregistered Cisco.com users can order documentation through a local account representative by calling Cisco Systems Corporate Headquarters (California, USA) at 408 526-7208 or, elsewhere in North America, by calling 800 553-NETS (6387).

Documentation Feedback

You can submit e-mail comments about technical documentation to bug-doc@cisco.com.

Cisco uBR10012 Universal Broadband Router Troubleshooting Guide

 

OL-1237-01

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Contents Text Part Number OL-1237-01 Corporate HeadquartersCopyright 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 Audience PurposeDocument Organization Related DocumentationChapter Description Documentation Feedback Obtaining DocumentationCisco.com Ordering DocumentationObtaining Technical Assistance Cisco TAC WebsiteOpening a TAC Case TAC Case Priority Definitions Obtaining Additional Publications and InformationXii Basic Troubleshooting Tasks and Startup Issues Basic Troubleshooting ChecklistConfirming the Hardware Installation Displaying the Cisco IOS Software Version Last reset from power-onDisplaying System Environment Information Hardware Troubleshooting FlowchartTCC+ Cisco uBR10012 System Startup SequenceStartup Event Event Description AC PEM Faults PEM Faults and Fan Assembly FailuresColor Description Fault Symptom Corrective ActionDC PEM Faults DC PEM Front Panel original model, UBR10-PWR-DC 2400W AC-Input Power Shelf Fault Other Electrical ProblemsAC OK DC OKFan Assembly Module Fan Assembly Module FaultsFan 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 Prot Booting Up with Redundant PRE-1 ModulesIOS Intf IOS RUNPRE-1 Module Faults LED Fault Steps to TakeC10000config#interface fastethernet0/0/0 Ethernet Connection ProblemsConsole Port Serial Connection Problems Troubleshooting System Crashes Troubleshooting Common System ProblemsARP Traffic High CPU Utilization ProblemsRouterconfig-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 Alignment Errors Memory ProblemsMemory Parity Errors Low Memory ErrorsParticle Pool Fallbacks Spurious Interrupts Spurious Memory Accesses OL-1237-01 Troubleshooting Line Cards Command Description General Information for Troubleshooting Line Card CrashesSIG 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 PASS-THROUGH EnabledFail EnablePOS SRPSync WrapPass Thru Gigabit Ethernet Line Card Faceplate and LED Descriptions Troubleshooting the Gigabit Ethernet Line CardGigabit Ethernet Line Card Faults and Recommended Responses OL-1237-01 Password Recovery Procedure Password Recovery Procedure OverviewPress Return. The user Exec prompt appears Change all three passwords using the following commands OL-1237-01 Unsupported Frame Relay Commands Unsupported CommandsMlppp Commands Hccp CommandsUnsupported PPP Commands Unsupported Mpls VPN CommandsSpectrum Management Commands Unsupported Telco-Return CommandsOL-1237-01 Equipment Description Testing with Digital Multimeters and Cable TestersTesting with TDRs and OTDRs Testing with TDRsTesting with OTDRs Testing with Breakout Boxes, Fox Boxes, and BERTs/BLERTs Testing with Network MonitorsTesting with Network Analyzers Active LED Enable LEDBert BlertMAINTENANCE, OC-12 SRP/DPT ENABLE, OC-48 DPT/POSMAINTENANCE, TCC+ POWER, OC-12 DPT/SRP POWER, TCC+Power LED Maintenance LEDSTATUS, OC-12 DPT/SRP STATUS, TCC+ SYNC, OC-48 DPT/POS TX, OC-48 DPT/POS WRAP, OC-48 DPT/POSPresent LED TCC+ OC-12 DPT/SRP TCC+RX Carrier LED RX LED RX Pkts LEDTDR B-2 TX LED OC-48 DPT/POSWrap LED IN-6