Cisco Systems RSP8 manual Troubleshooting NSF Features, NSF Troubleshooting Tips

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Enabling High Availability Features

Troubleshooting NSF Features

To troubleshoot the NSF feature, use the following commands in privileged EXEC configuration mode, as needed:

Command

Purpose

 

 

Router# clear cef epoch

Begins a new epoch and increments the epoch number for a CEF table.

 

 

Router# debug isis nsf [detail]

Displays information about the IS-IS state during a Cisco NSF restart.

 

 

Router# debug ospf nsf [detail]

Displays debugging messages related to OSPF Cisco NSF commands.

 

 

Router# show cef nsf

Displays the current NSF state of CEF on both the active and standby RSPs.

 

 

Router# show cef state

Displays the state of CEF on a networking device.

 

 

Router# show clns neighbors

Display both end-system (ES) and intermediate system (IS) neighbors.

 

 

Router> show ip bgp

Displays entries in the BGP routing table.

 

 

Router# show ip bgp neighbor

Displays information about the TCP and BGP connections to neighbor

 

devices.

 

 

Router# show ip cef

Displays entries in the FIB that are unresolved, or displays a FIB summary.

 

 

Router> show ip ospf

Displays general information about OSPF routing processes.

 

 

Router> show ip ospf neighbor [detail]

Displays OSPF-neighbor information on a per-interface basis.

 

 

Router# show isis database [detail]

Displays the IS-IS link-state database.

 

 

Router# show isis nsf

Displays the current state information regarding IS-IS Cisco NSF.

 

 

NSF Troubleshooting Tips

For the following troubleshooting situations, try the corresponding recommended action to resolve the problem.

Symptom The system displays FIB errors.

Recommended Action Use the show cef state command to verify that distributed CEF switching is enabled on your platform. To enable distributed CEF, use the ip cef distributed command in global configuration mode on the active RSP.

Symptom Cannot determine if an OSPF neighbor is NSF-aware.

Recommended Action To verify whether an OSPF neighbor device is NSF-aware and if NSF is operating between them, use the show ip ospf neighbor detail command.

Symptom The system loses, or appears to lose, adjacencies with network peers following a stateful switchover.

Recommended Action Use the show clns neighbors detail command to find any neighbors that do not have “NSF capable” and make sure that they are running NSF-aware images. Additionally, for ISIS, the standby RSP must be stable for 5 minutes (default) before another restart can be initiated. Use the nsf interval command to reset the restart period.

Route Switch Processor (RSP8) Installation and Configuration Guide

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Contents Document Contents Related Documentation Cisco.com, Obtaining Documentation,Product Description Topics discussed in this section areMonitoring interface and environmental status RSP8-Horizontal Front-Panel ViewFlash Eprom ROMmon Bus connectors Auxiliary port U12Shows the memory components on the RSP8 Memory ComponentsType Size Quantity Description Location LEDs There are no user-configurable jumpers on the RSP8Jumpers Flash Memory Cards and Flash DisksSerial Ports PC Card SlotsLED Label Color State Indication Specifications SpecificationsLists the physical specifications for the RSP8 System SoftwareSafety Guidelines Installation PrerequisitesSafety Warnings Installation Prerequisites Electrical Equipment Guidelines Telephone Wiring GuidelinesPreventing Electrostatic Discharge Damage Chassis Slot and Dram Requirements Compatibility RequirementsMemory Requirements Software Prerequisites Hardware PrerequisitesList of Parts and Tools Microcode RequirementsInstalling the RSP8 Removing the RSP8Ejector Levers and Captive Installation Screw Replacing the RSP8 Handling the RSP8 During Removal and Installation Connecting to the Auxiliary Port Connecting a Console TerminalUsing the Y-Cables for Console and Auxiliary Connections Restarting the System Shows the console Y-cable and shows the auxiliary Y-cableInstalling the RSP8 Router show version Configuring the Router for a Single RSP8 Using the Exec Command InterpreterConfiguring High System Availability HSA Active and Standby OperationHSA Implementation Methods HSA Configuration Task List HSA System RequirementsRouter# configure terminal Specifying the Default Standby RSPCommand Purpose Router# copy system running-config nvramstartup-configEnsuring that Both RSPs Contain the Same System Image Ensuring that Both RSPs Contain the Same Microcode Image Router# show controller cbusRouter# copy bootflashfilename slot0filename Router# dir slavebootflash slaveslot0 slaveslot1Slot1filename slavebootslotfilename Determines whether the standby RSP contains the same Router# copy source bootflash slot0 slot1Copies a different system image to the active RSP Upgrading to a New Software Version Example Now view the standby software image location and version BootflashRouter# copy tftp slot0rsp-pv-mz.120-22.3.S1 Routerconfig# config-register 0x010F Routerconfig# boot system tftp rsp-pv-mz.120-23.SBacking Up with an Older Software Version Example ANB Delete the rsp-pv-mz.120-22.3.S1image from the standby RSP Router# show bootflashRouter# delete slaveslot0rsp-pv-mz.120-22.3.S1 Manually Setting Environment Variables on the Standby RSP Router# copy system running-config startup-configRouter# copy running-config startup-config Routerconfig# slave sync configInformation under that RSP’s ROM monitor control Routerconfig# hw-module slot imageMonitoring and Maintaining HSA Operation Specifies which image the standby runsHigh Availability Feature Overview Enabling High Availability FeaturesRouter# slave sync config Enabling High Availability Features Installation Procedures Hardware and Software PrerequisitesEnabling the Router This completes the procedure to enable the routerCopying an Image onto an RSP Router# copy tftp slot slot-number Router# copy tftp slaveslot slot-numberRouterconfig# boot system flash Setting the Config-Register Boot VariableConfiguring RPR and RPR+ Router# show versionRouterconfig# hw-module slot slot-numberimage file-spec Router# hw-module sec-cpu resetVerifying RPR and RPR+ Configuring RPR and RPR+ ExampleRouter# show redundancy Configuring a Stateful Switchover SSO Configuration file Saves the configuration changes to the startupVerifying SSO Router# show redundancy states my state = 13 -ACTIVE Router# show redundancy clientConfiguring CEF NSF Configuring Nonstop Forwarding NSFConfiguring BGP NSF As-number Configuring Ospf NSFConfiguring IS-IS NSF Graceful-restartVerifying CEF NSF Seconds adjacencyVerifying BGP NSF Router# show ip bgp neighborsVerifying Ospf NSF Running-config commandThis example, note the presence of NSF restart enabled Verifying IS-IS NSFNetworking device Troubleshooting NSF Features NSF Troubleshooting TipsOspf NSF Configuration Example BGP NSF Configuration ExampleBGP NSF Neighbor Device Configuration Example IS-IS NSF Configuration ExamplePerforming a Fast Software Upgrade Specifies the image to be used by the standby RSP at Routerconfig# hw-module slot slot-number imageName of the image of the standby RSP Router# redundancy force-switchover Configuring SlcrFast Software Upgrade Example Routerconfig# service single-slot-reload-enableSlcr Troubleshooting Tips RPR, RPR+, SSO, and FSU Troubleshooting TipsSlcr Configuration Example Disabling SlcrMonitoring and Maintaining the Active and Standby RSPs Troubleshooting the InstallationSystem Power LEDs Verifying LEDsRSP8 LEDs NormalVerifying System Startup Sequence Troubleshooting the Installation Troubleshooting a Router That is Failing to Boot Troubleshooting a Failed RSP8Reloading a Failed RSP Maintenance InformationSaving and Retrieving a Configuration File Displaying a Stack Trace of an RSPUsing the ping Command to Ensure Connectivity Router# pingMight include the name or address of a default file server Copying the Configuration FileSection on page 24 to enable the privileged level Copy to this fileRouter# show startup-config Retrieving the Configuration File Replacing and Upgrading Dram DIMMs Product Numbers Quantity Dram Sockets Totals Sdram DimmRemoving DIMMs Polarization notchInstalling New DIMMs Inserting the DimmRecovering a Lost Password Checking the RSP Memory UpgradeInitialize the router using the i command as follows Pin Signal Direction Description Console Port SignalsReference Information Female DB-25 Pins Male DB-25 Pins Signal Description Auxiliary Port SignalsConsole and Auxiliary Y-Cable Pinouts P1-5 J1-5 and J2-5 Software Configuration Register SettingsMale DB-25 Pins Female DB-25 Pins Signal Description P1-7 J1-7 and J2-7 Ground P1-8 J1-8 and J2-8Boots the first system image in onboard Flash memory Boot Field MeaningStays at the system bootstrap prompt Bit Number Hexadecimal MeaningBit Meanings Changing SettingsRouterconfig# config-register 0xvalue Tftp flash filenameAction/Filename Bit Bit Address net host Enabling a Boot from Flash MemoryRouterconfig# boot system flash devicefilename Baud BitEnabling a Boot from the Flash Disk Obtaining Documentation Using Flash MemorySystem# copy running-config startup-config Cisco.comOrdering Documentation Obtaining Technical AssistanceDocumentation CD-ROM Documentation FeedbackCisco TAC Website Opening a TAC Case TAC Case Priority DefinitionsObtaining Additional Publications and Information Copyright 2004 Cisco Systems, Inc. All rights reserved
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