Cisco Systems UBR10012 manual Troubleshooting Line Cards

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Chapter 4 Troubleshooting Line Cards

General Information for Troubleshooting Line Card Crashes

If the crash is accompanied by %IPC-3-NOBUFF messages, see Troubleshooting IPC-3-NOBUFF Messages on the Cisco 12000, 10000 and 7500 Series, at the following URL:

http://www.cisco.com/en/US/products/hw/routers/ps133/products_tech_note09186a00800945a1.s html

•Hardware Problem—The card might not be fully inserted into its slot, or the card hardware itself could have failed. In particular, if the problem began occurring after the card was moved or after a power outage, the card could have been damaged by static electricity or a power surge. Only a small number of fabric ping timeouts are caused by hardware failures, so check for the following before replacing the card:

–Reload the software on the line card, using the hw-module slot reset command.

–Remove and reinsert the line card in its slot.

–Try moving the card to another slot, if one is available.

If software-forced crashes continue, collect the following information and contact Cisco TAC:

•All relevant information about the problem that you have available, including any troubleshooting you have performed.

•Any console output that was generated at the time of the problem.

•Output of the show tech-supportcommand.

•Output of the show log command (or the log that was captured by your SYSLOG server, if available).

For information on contacting TAC and opening a case, see the “Obtaining Technical Assistance” section on page x.

Cisco uBR10012 Universal Broadband Router Troubleshooting Guide

	OL-1237-01	4-7

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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 PurposeRelated Documentation Document OrganizationChapter Description Ordering Documentation Obtaining DocumentationDocumentation Feedback Cisco.comCisco TAC Website Obtaining Technical AssistanceOpening 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 DC OK Other Electrical ProblemsFault AC OKFan Assembly Module Fan Assembly Module FaultsFan Assembly Air Circulation Pattern Single FAN Failure Symptom Steps to TakeMULTI-FAN Failure LED OL-1237-01 Troubleshooting PRE-1 Modules PRE-1 Module Status Screen PRE Module Not SupportedMessage Description IOS RUN Booting Up with Redundant PRE-1 ModulesIOS Prot IOS IntfPRE-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 Debug and System Messages Cpuhog ErrorsExec and Virtual Exec Processes Interrupts are Consuming a Large Amount of Resources Invalid Scheduler Allocate ConfigurationIP Input Processing Problems with Access Lists Bus ErrorsSnmp 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 Sigerror Cache Parity ErrorsSigreload Bus Errors Software-Forced Crashes Troubleshooting Line Cards TCC+ Front Panel Maintenance PowerStatus Description Fault Type Response Show controllers clock-reference command Troubleshooting the OC-12 Packet-Over-SONET Line Card Fault Corrective Action Active RX CARRIER-BRX CARRIER-A PASS-THROUGH EnabledSRP EnableFail POSWrap SyncPass 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 Telco-Return Commands Unsupported Mpls VPN CommandsUnsupported PPP Commands Spectrum Management CommandsOL-1237-01 Equipment Description Testing with Digital Multimeters and Cable TestersTesting with TDRs Testing with TDRs and OTDRsTesting with OTDRs Testing with Breakout Boxes, Fox Boxes, and BERTs/BLERTs Testing with Network MonitorsTesting with Network Analyzers Blert Enable LEDActive LED BertPOWER, OC-12 DPT/SRP POWER, TCC+ ENABLE, OC-48 DPT/POSMAINTENANCE, OC-12 SRP/DPT MAINTENANCE, TCC+TX, OC-48 DPT/POS WRAP, OC-48 DPT/POS Maintenance LEDPower LED STATUS, OC-12 DPT/SRP STATUS, TCC+ SYNC, OC-48 DPT/POSRX Pkts LED OC-12 DPT/SRP TCC+Present LED TCC+ RX Carrier LED RX LEDTX LED OC-48 DPT/POS TDR B-2Wrap LED IN-6