Cisco PRP-2 Installation And Configuration Manual page 5

The PRP-3 contains the following components:
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Note For Cisco IOS XR Release 3.7.0 and later releases, SDRAM and Compact Flash memories require 2 GB
capacity.
Differences Between PRP-2 and PRP-3
Table 2
Table 2
Hardware or
Software
Component
Processor
Processor Bus
Memory
System Controller Discovery GT64260
Cache
Data Processing
Fabric Interface
NVRAM
Bootflash
Boot ROM
Ethernet
Interfaces
OL-17436-01
Power PC Processor—Power PC 8641D Dual Processor Central Processing Unit (CPU) e600 cores
running at 1.3 GHz each.
Memory—Default internal and external compactflash of 2 GB each (2 x 2 GB = total 4 GB) and
provides an option for upgrading the compact flash to 8 GB (2 x 4 GB).
Hard disk drive—80-GB hard disk drive installed on the PRP-3 board.
SDRAM—2 GB each for two DDR2 DRAMs (2 x 2 GB) for a total of 4 GB is the default shipping
configuration. Option to upgrade to 8 GB (2 x 4 GB).
NVRAM—2 MB of nonvolatile RAM (NVRAM). NVRAM is not user configurable or field
replaceable.
Sensors—Air-temperature sensors for environmental monitoring.
provides details about hardware or software component differences between PRP-2 and PRP-3.
Differences Between PRP-2 and PRP-3
PRP-2 Specifications
PowerPC 7457 – single core @ 1.3GHz PowerPC 8641D – Dual core @ 1.3GHz
64 bits @ 133 MHz (external)
Up to 4 GB @ 133 Mhz SDR DRAM
L1: 32KB
L2: 256KB
L3: 2MB (external)
Assembler and Chopper FPGAs
OC-48 bandwidth (Fusilli + external
serdeses)
2 MB
64 MB + 1 GB Compact Flash (Option
to upgrade to 4 GB).
4 MB
2x 10/100 FE + 1x 10/100/GE
Product Overview
PRP-3 Specifications
each
64 bits @ 533 MHz (internal)
Up to 8 GB @ 266 MHz DDRII DRAM
Embedded within the 8641D
L1: 32KB
L2: 1MB
(No external cache needed)
Hummer FPGA
OC-192 Bandwidth (SuperFish +
Fishstick)
2 MB
2 GB of Internal and External
CompactFlash (An upgrade option is
available for a total of 8 GB memory (4
GB each.)
8 MB
2x 10/100/1000 Mbps
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