Cisco Systems RSP8 Software Configuration Register Settings

82

Route Switch Processor (RSP8) Installation and Configuration Guide

OL-4920-02

Reference Information

Software Configuration Register Settings

Settingsfor the 16-bit software configuration register are written into the NVRAM. Following are some

reasons for changing the software configuration register settings:

•To select a boot source and default boot filename

•To enable or disable the Break function

Note The Break function (software configuration register bit 8) when enabled allows you to send a Break

signalto the router during a system (re)boot. This stops the boot process and places the router into ROM

monitor mode. You can activate the Break function by using a dedicated Break key function on the

keyboard, or by entering theCtrl-[ (left square bracket) key combination.

•To control broadcast addresses

•To set the console terminal baud rate

•To load operating software from Flash memory card or Flash Disk

•To enable booting from a Trivial File Transfer Protocol (TFTP) server

P1-6 J1-6 and J2-6 Data Set Ready (DSR)

P1-7 J1-7 and J2-7 Ground

P1-8 J1-8 and J2-8 Data Carrier Detect (DCD)

P1-13 J1-13 and J2-13 YCBL Detect Ground

P1-19 J1-19 and J2-19 YCBL Detect

P1-20 J1-20 and J2-20 Data Terminal Ready (DTR)

Table8 Auxiliary Y-Cable Signals (Product Number CAB-RSP8AUX=)

Male DB-25Pins Female DB-25Pins Signal Description

P1-1 J1-1 and J2-1 Ground

P1-2 J1-2 and J2-2 TxD

P1-3 J1-3 and J2-3 RxD

P1-4 J1-4 and J2-4 RTS

P1-5 J1-5 and J2-5 CTS

P1-7 J1-7 and J2-7 Ground

P1-8 J1-8 and J2-8 DCD

P1-13 J1-13 and J2-13 YCBL Detect

P1-19 J1-19 and J2-19 YCBL Detect Ground

P1-20 J1-20 and J2-20 DTR

P1-22 J1-22 and J2-22 Ring

Table7 Console Y-Cable Signals (Product Number CAB-RSP8CON=) (Continued)

Female DB-25Pins Male DB-25 Pins Signal Description

Contents

Main Route Switch Processor (RSP8) Installation and Configuration Guide Document Contents Related Documentation Product Description Page CPU Memory Components DRAM SRAM NVRAM Flash Memory Cards and Flash Disks Jumpers LEDs PC Card Slots Serial Ports Specifications System Software Installation Prerequisites Safety Guidelines Safety Warnings Regulatory Compliance andSafety Information Regulatory Compliance and Safety Information Electrical Equipment Guidelines Telephone Wiring Guidelines Preventing Electrostatic Discharge Damage Compatibility Requirements Chassis Slot and DRAM Requirements Memory Requirements Software Prerequisites Hardware Prerequisites Microcode Requirements List of Parts and Tools Installing the RSP8 Removing the RSP8 Page Replacing the RSP8 Page Connecting a Console Terminal Connecting to the Auxiliary Port Using the Y-Cables for Console and Auxiliary Connections Restarting the System Page Page Configuring the Router for a Single RSP8 Using the EXEC Command Interpreter Configuring High System Availability HSA Active and Standby Operation HSA Implementation Methods HSA System Requirements HSA Configuration Task List Specifying the Default Standby RSP Ensuring that Both RSPs Contain the Same Configuration Files Ensuring that Both RSPs Contain the Same System Image Ensuring that Both RSPs Contain the Same Microcode Image Page Specifying Different Startup Images for the Active and the Standby RSPs Upgrading to a New Software Version Example Figure8 Software Error ProtectionUpgrading to a New Software Version following command: Release 12.0(22.3)S1 system image from a TFTP server to slot 0 on the active RSP: Backing Up with an Older Software Version Example Route Switch Processor (RSP8) Installation and Configuration Guide OL-4920-02 Configuring High System Availability In this scenario, we begin with the configuration shown inFigure 9. Figure9 Software Error ProtectionBacking Up with an Older Software Version, Part I Figure10 Software Error ProtectionBacking Up with an Older Software Version, Part II Next,we copy the rsp-pv-mz.120-23.S image to the active and the standby RSPs, as shown in Figure 10. Last,we delete the rsp-pv-mz.120-22.3.S1 image from the standby RSP4/4+ card, as shown in Figure 11: Figure11 Software Error ProtectionBacking Up with an Older Software Version, Part III Complete the following steps to configure software error protection for this sample scenario: 0 on the active and standby RSPs: and standby RSPs: Setting Environment Variables on the Active and the Standby RSPs Manually Setting Environment Variables on the Standby RSP Automatically Setting Environment Variables on the Standby RSP Monitoring and Maintaining HSA Operation Enabling High Availability Features High Availability Feature Overview Page Hardware and Software Prerequisites Installation Procedures Enabling the Router Copying an Image onto an RSP Page Setting the Config-Register Boot Variable Configuring RPR and RPR+ Page Verifying RPR and RPR+ Use the show redundancycommand to verify that RPR or RPR+ is enabled: Configuring RPR and RPR+ Example Configuring a Stateful Switchover (SSO) Configuring Frame Relay Autosynchronization LMI Sequence Numbers Verifying SSO Note The output of these commands will vary based on your device configuration and system site requirements. Step1 Use the show redundancy command to verify that SSO is configured on the device. Step2 Run the show redundancy states command to verify that SSO is operating on the device. registered as SSO protocols or applications. Verify the list of supported line protocols. Configuring Nonstop Forwarding (NSF) Configuring CEF NSF Configuring BGP NSF Configuring OSPF NSF Configuring IS-IS NSF Verifying CEF NSF Verifying BGP NSF Verifying OSPF NSF Verifying IS-IS NSF Page Troubleshooting NSF Features NSF Troubleshooting Tips BGP NSF Configuration Example BGP NSF Neighbor Device Configuration Example OSPF NSF Configuration Example IS-IS NSF Configuration Example Performing a Fast Software Upgrade Page Fast Software Upgrade Example Configuring SLCR Enabling SLCR Disabling SLCR Verifying Cisco 7500 SLCR SLCR Configuration Example RPR, RPR+, SSO, and FSU Troubleshooting Tips Monitoring and Maintaining the Active and Standby RSPs Troubleshooting the Installation Verifying LEDs System Power LEDs RSP8 LEDs Verifying System Startup Sequence Page Troubleshooting a Router That is Failing to Boot Troubleshooting a Failed RSP8 Troubleshooting RSP Boot Errors During OIR of an Interface Processor Reloading a Failed RSP Displaying a Stack Trace of an RSP Maintenance Information Saving and Retrieving a Configuration File Using the ping Command to Ensure Connectivity Copying the Configuration File Page Retrieving the Configuration File Replacing and Upgrading DRAM DIMMs Page Removing DIMMs Installing New DIMMs Checking the RSP Memory Upgrade Recovering a Lost Password Page Reference Information Console Port Signals Auxiliary Port Signals Console and Auxiliary Y-Cable Pinouts Software Configuration Register Settings Page Changing Settings Bit Meanings Page Enabling a Boot from Flash Memory Enabling a Boot from the Flash Disk Using Flash Memory Obtaining Documentation Cisco.com Documentation CD-ROM Ordering Documentation Documentation Feedback Obtaining Technical Assistance Cisco TAC Website Opening a TAC Case TAC Case Priority Definitions Obtaining Additional Publications and Information