7
Route Switch Processor (RSP8) Installation and Configuration Guide
OL-4920-02
Product Description
Note SRAM is fixed and isnot field-upgradable.

NVRAM

The system configuration, software configuration register settings, and environmental monitoring logs
are contained in the 2-MB NVRAM, which is backed up with built-in lithium batteries that retain the
contentsfor a minimum of 5 years. When replacing an RSP8, be sure to back up your configuration to a
remote server so you can retrieve it later.
Caution Before you replace an RSP8 in a system with one RSP8, back up the running configurationto a Trivial
File Transfer Protocol (TFTP) file server or to Flash memory so you can retrieve it later. If the
configuration is not saved, the entire configuration will be lost—inside the NVRAM on the removed
RSP8—and you will haveto reenter the entire configuration manually. For instructions on how to save
the configuration file, see the“Saving and Retrieving a Configuration File” section on page 69. This
procedure is not necessary if you are temporarily removing an RSP8; lithium batteries retain the
configuration in memory until you replace the RSP8 in the system.

Flash Memory Cards and Flash Disks

Flash memory cards (formerly called PCMCIA cards) and Flash Disks allow you to remotely load and
store multiple Cisco IOS software and microcode images. You can download a new image over the
networkor from a local server and then add the new image to Flash memory or replace the existing files.
You can then boot routers either manually or automatically from any of the images stored in Flash
memory. Flash memory also functions as a TFTP server to allow other servers to boot remotely from
stored images or to copy them into their own Flash memory.
Flash memory cards are available in 16-, 20-, or 32-MB sizes. Flash memory cards can be used in the
RSP8 second PC Card slot for additional space, or as a backup to the main Flash memory.
Flash Disks are an alternative to the Flash memory cards, with more storage capacity. Flash Disks are
availablein 48-MB, 64-MB or 128-MB sizes, and can be used in slot 0, slot 1, or slots 0 and 1. You can
use the Flash Disk side-by-side with the Flash memory cards.
Caution A flash memory card must be formatted on an RSP8 if you want it to work in an RSP8.
Fora list of compatible software releases for the Flash memory card and Flash Disk, refer to the Software
Advisor at http://www.cisco.com/cgi-bin/Support/CompNav/Index.pl.
Jumpers
There are no user-configurable jumpers on the RSP8.
LEDs
Table2 describes the operation of the LEDs found on the RSP8: