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Performance Route Processor Installation and Configuration Guide
OL-11656-01
Note If a single DIMM module is installed, it must be placed in bank 1 (U15).
Table 1 PRP Memory Components
Type Size Quantity Description Location
SDRAM
1
1. Default SDRAM configuration is 512 MB for PRP-1 and 1-GB for PRP-2. 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 for the PRP-1 and 1 GB, 2 GB, 3 GB,
and 4 GB for the PRP-2. 1.5-GB configurations.and non-Cisco DIMM devices are not supported.
512 MB or 1 GB 1 or 2 512-MB and 1-GB DIMMs (based on
desired SDRAM configuration) for main
Cisco IOS software functions
U15 (bank
1)
2
U18 (bank 2)
2. If both banks of the PRP-1 are populated, bank 1 and bank 2 must contain the same size DIMM.
SRAM
3
3. SRAM is not user configurable or field replaceable.
2 MB (fixed) — Secondary CPU cache memory functions —
NVRAM
4
4. NVRAM is not user configurable or field replaceable.
2 MB (fixed) 1 System configuration files, register
settings, and logs
—
Flash memory 64 MB SIMM
5
5. Flash memory SIMM is not user configurable or field replaceable.
1 Contains Cisco IOS boot image
(bootflash), crash information, and other
user-defined files
P3
Flash disks
6
6. ATA Flash disks are supported in the PRP-2; both ATA Flash disks and linear Flash memory cards are supported in the
PRP-1.
1 or 2 Contains Cisco IOS software images,
system configuration files, and other
user-defined files on up to two Flash
disks
Flash disk
slot 0 and
slot 1
1 GB CF
7
7. Optional PRP-2 hardware. Non-Cisco compact disks are not supported.
1 Contains large Cisco IOS images —
Flash boot
ROM
512 KB 1 Flash EPROM for the ROM monitor
program boot image
—
HDD
8
8. Optional PRP-2 hardware. Non-Cisco hard disk drives are not supported.
40 GB 1 Contains log and crash information for
specific Cisco IOS versions
—