Cisco Systems PRP-2=, PRP-1=, PRP-1/R=, PRP-2/R= Understanding the Software Configuration Register

Additional Configuration and Maintenance Tasks

Additional Configuration and Maintenance Tasks

This section contains information on the following additional configuration, maintenance, and upgrade tasks:

•Understanding the Software Configuration Register, page 54

•Using Flash Disks in the PRP, page 61

•Removing and Installing a Compact Flash Disk, page 66

•Removing and Installing a Hard Disk Drive, page 67

•Recovering a Lost Password, page 69

•Upgrading PRP Memory, page 72

Understanding the Software Configuration Register

Configuring the software configuration register is described in the following sections:

•Description of the Software Configuration Register, page 54

•Boot Field Settings, page 57

•Configuring the Software Configuration Register, page 58

•Bits in the Software Configuration Register, page 59

Description of the Software Configuration Register

The software configuration register is a 16-bit register in NVRAM that you use to define specific system parameters. You can set or change the contents of this register to accomplish the following tasks:

•Define the source for the default Cisco IOS software. You can specify any of the following:

–Flash memory card inserted in PCMCIA slot 0

–TFTP server on the network

–Flash memory SIMM (NVRAM) on the RP

	Performance Route Processor Installation and Configuration Guide
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