Chapter 1 Product Overview
Route Processors
PRP Memory Components
PRP memory options and functions are listed in Table
Table |
| PRP Memory Components |
| ||
|
|
|
|
| |
Type | Size | Quantity | Description | Location | |
|
|
|
|
| |
SDRAM1 | 512 MB, | 1 or 2 | U15 (bank 1)2 | ||
| 1 | GB, or 2 GB |
| SDRAM configuration) for main Cisco IOS | U18 (bank 2) |
|
|
|
| software functions |
|
|
|
|
|
|
|
SRAM3 | 2 | MB (fixed) | — | Secondary CPU cache memory functions | — |
NVRAM3 | 2 | MB (fixed) | 1 | System configuration files, register settings, | — |
|
|
|
| and logs |
|
|
|
|
|
| |
Flash | 64 MB | 1 | Cisco IOS boot image (bootflash), crash | P3 | |
memory | SIMM4 |
| information, and other |
| |
| 64 MB, | 1 or 2 | Cisco IOS software images, system | Flash disk | |
| 128 MB, or |
| configuration files, and other | slot 0 and | |
| 1 | GB |
| files on up to two Flash disks | slot 1 |
| Flash disks5 |
|
|
| |
Flash boot | 512 KB | 1 | Flash EPROM for the ROM monitor program | — | |
ROM |
|
|
| boot image |
|
|
|
|
|
|
|
1.Default SDRAM configuration is 512 MB. Bank 1 (U15) must be populated first. You can use one or both banks to configure SDRAM combinations of 512 MB, 1 GB, or 2 GB.
2.If both banks are populated, bank 1 and bank 2 must contain the same size DIMM.
3.This memory is neither user configurable nor field replaceable.
4.Flash memory SIMM is not user configurable or field replaceable.
5.ATA Flash disks and Type I and Type II linear Flash memory cards are supported. See the “Flash Memory” section on page
Note If a single DIMM module is installed, it must be placed in bank 1 (U15).
| Cisco 12006 and Cisco 12406 Router Installation and Configuration Guide |