Cisco Systems UBR10012 manual Copyright 2001-2004, Cisco Systems, Inc All rights reserved

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THE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS MANUAL ARE SUBJECT TO CHANGE WITHOUT NOTICE. ALL STATEMENTS, INFORMATION, AND RECOMMENDATIONS IN THIS MANUAL ARE BELIEVED TO BE ACCURATE BUT ARE PRESENTED WITHOUT WARRANTY OF ANY KIND, EXPRESSED OR IMPLIED. USERS MUST TAKE FULL RESPONSIBILITY FOR THEIR APPLICATION OF ANY PRODUCTS.

THE SOFTWARE LICENSE AND LIMITED WARRANTY FOR THE ACCOMPANYING PRODUCT ARE SET FORTH IN THE INFORMATION PACKET THAT SHIPPED WITH THE PRODUCT AND ARE INCORPORATED HEREIN BY THIS REFERENCE. IF YOU ARE UNABLE TO LOCATE THE SOFTWARE LICENSE OR LIMITED WARRANTY, CONTACT YOUR CISCO REPRESENTATIVE FOR A COPY.

The following information is for FCC compliance of Class A devices: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio-frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference, in which case users will be required to correct the interference at their own expense.

The following information is for FCC compliance of Class B devices: The equipment described in this manual generates and may radiate radio-frequency energy. If it is not installed in accordance with Cisco’s installation instructions, it may cause interference with radio and television reception. This equipment has been tested and found to comply with the limits for a Class B digital device in accordance with the specifications in part 15 of the FCC rules. These specifications are designed to provide reasonable protection against such interference in a residential installation. However, there is no guarantee that interference will not occur in a particular installation.

Modifying the equipment without Cisco’s written authorization may result in the equipment no longer complying with FCC requirements for Class A or Class B digital devices. In that event, your right to use the equipment may be limited by FCC regulations, and you may be required to correct any interference to radio or television communications at your own expense.

You can determine whether your equipment is causing interference by turning it off. If the interference stops, it was probably caused by the Cisco equipment or one of its peripheral devices. If the equipment causes interference to radio or television reception, try to correct the interference by using one or more of the following measures:

Turn the television or radio antenna until the interference stops.

Move the equipment to one side or the other of the television or radio.

Move the equipment farther away from the television or radio.

Plug the equipment into an outlet that is on a different circuit from the television or radio. (That is, make certain the equipment and the television or radio are on circuits controlled by different circuit breakers or fuses.)

Modifications to this product not authorized by Cisco Systems, Inc. could void the FCC approval and negate your authority to operate the product.

The Cisco implementation of TCP header compression is an adaptation of a program developed by the University of California, Berkeley (UCB) as part of UCB’s public domain version of the UNIX operating system. All rights reserved. Copyright © 1981, Regents of the University of California.

NOTWITHSTANDING ANY OTHER WARRANTY HEREIN, ALL DOCUMENT FILES AND SOFTWARE OF THESE SUPPLIERS ARE PROVIDED “AS IS” WITH ALL FAULTS. CISCO AND THE ABOVE-NAMED SUPPLIERS DISCLAIM ALL WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING, WITHOUT LIMITATION, THOSE OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OR ARISING FROM A COURSE OF DEALING, USAGE, OR TRADE PRACTICE.

IN NO EVENT SHALL CISCO OR ITS SUPPLIERS BE LIABLE FOR ANY INDIRECT, SPECIAL, CONSEQUENTIAL, OR INCIDENTAL DAMAGES, INCLUDING, WITHOUT LIMITATION, LOST PROFITS OR LOSS OR DAMAGE TO DATA ARISING OUT OF THE USE OR INABILITY TO USE THIS MANUAL, EVEN IF CISCO OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

CCVP, the Cisco Logo, and the Cisco Square Bridge logo are trademarks of Cisco Systems, Inc.; Changing the Way We Work, Live, Play, and Learn is a service mark of Cisco Systems, Inc.; and Access Registrar, Aironet, BPX, Catalyst, CCDA, CCDP, CCIE, CCIP, CCNA, CCNP, CCSP, Cisco, the Cisco Certified Internetwork Expert logo, Cisco IOS, Cisco Press, Cisco Systems, Cisco Systems Capital, the Cisco Systems logo, Cisco Unity, Enterprise/Solver, EtherChannel, EtherFast, EtherSwitch, Fast Step, Follow Me Browsing, FormShare, GigaDrive, HomeLink, Internet Quotient, IOS, iPhone, IP/TV, iQ Expertise, the iQ logo, iQ Net Readiness Scorecard, iQuick Study, LightStream, Linksys, MeetingPlace, MGX, Networking Academy, Network Registrar, Packet, PIX, ProConnect, RateMUX, ScriptShare, SlideCast, SMARTnet, StackWise, The Fastest Way to Increase Your Internet Quotient, and TransPath are registered trademarks of Cisco Systems, Inc. and/or its affiliates in the United States and certain other countries.

All other trademarks mentioned in this document or Website are the property of their respective owners. The use of the word partner does not imply a partnership relationship between Cisco and any other company. (0704R)

Cisco uBR10012 Universal Broadband Router Troubleshooting Guide

OL-1237-01

Copyright © 2001-2004, Cisco Systems, Inc.

All rights reserved.

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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 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 LEDWrap LED TDR B-2TX LED OC-48 DPT/POS IN-6