Cisco PRP-1= Operator's manual

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Performance Route Processor
Installation and Configuration Guide
Product Number: PRP-1=, PRP-1/R=, PRP-2=, PRP-2/R=
This hardware installation and configuration note describes the Performance
Route Processor (PRP) and the PRP-2, route processors for use in Cisco 12000
Series Routers.
Document Contents
This publication includes the following sections:
•Important Information, page 2
•Product Overview, page 5
•Preparing for Installation, page 18
•Removing and Installing a PRP, page 20
•Checking the Installation, page 26
•Upgrading to the PRP, page 32
•Configuring Interfaces on the PRP, page 44
•Additional Configuration and Maintenance Tasks, page 54

Important Information
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•Upgrading Chopper FPGA on PRP-2, page 80
•Regulatory, Compliance, and Safety Information, page 83
•Obtaining Documentation, page 88
Important Information
This section contains information about the following hardware and software
requirements:
•Router Information, page 2
•Cisco IOS Software Requirements, page 3
•Hardware Revision Requirements, page 4
•Related Documentation, page 5
Router Information
For hardware installation and maintenance information on Cisco 12000 Series
Routers, refer to the installation and configuration guide for your router. This
includes information on card slot locations and other general requirements.
Supported Platforms
The PRP operates on all Cisco 12000 Series Routers and can be installed in any
available slot in any chassis. Cisco recommends that you install the PRP in the
section of the chassis that receives the least amount of airflow (if any). The PRP
runs cooler than other system cards and, therefore, does not require as much
airflow.
PRP Redundancy
When two PRPs are installed in a Cisco 12000 Series Router, one PRP is the
active PRP and the other is a backup, or standby, PRP. If the active PRP fails or is
removed from the system, the standby PRP detects the failure and initiates a

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Important Information
switchover. During a switchover, the standby PRP assumes control of the router,
connects with the network interfaces, and activates the local network management
interface and system console.
Note If your system includes redundant PRPs, both PRPs should be of the same type
(PRP-1 or PRP-2) and have the same memory size. Redundancy is not supported
when using a Gigabit Route Processor (GRP) and a PRP in the same chassis.
Cisco strongly recommends that you avoid configuring your router using mixed
route processor cards. Refer to the Route Processor Redundancy Plus for the
Cisco 12000 Series Internet Router publication for more information on
redundancy.
Cisco IOS Software Requirements
For software configuration information, refer to the Cisco IOS software
configuration and command reference publications for the installed Cisco IOS
Release. Also refer to the Cisco IOS software release notes for additional
information.
The PRP is compatible with Cisco IOS Release 12.0(22)S or later.
The show version and show hardware commands display the current hardware
configuration of the router, including the system software version that is currently
loaded and running. For complete descriptions of show commands, refer to the
Cisco IOS Configuration Fundamentals Configuration Guide and the Cisco IOS
Configuration Fundamentals Command Reference.

Important Information
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Note Output from the show version command on a PRP-2 card running on software
releases prior to 12.0(30)S may display some incorrect information. This is only
a display issue and it occurs because the software does not recognize some of the
hardware on the card. This does not affect the functionality of the PRP-2. For
example, the following is incorrect output from the show version command on
release 12.0(22)S:
cisco 12406/PRP (MPC7450) processor (revision 0x00) with 1048576K
bytes of memory. unknown CPU at 598Mhz, Rev 1.1, 256KB L2, 2048KB L3
Cache
The output from a later software release would be as follows:
cisco 12406/PRP (MPC7457) processor (revision 0x00) with 1048576K
bytes of memory. MPC7457 CPU at 1263Mhz, Rev 1.1, 512KB L2, 2048KB L3
Cache
Hardware Revision Requirements
To ensure compatibility with the software, the PRP should have a specific
hardware revision level or greater. The hardware revision number is printed on a
label affixed to the component side of the card. The hardware revision number can
also be displayed using the show diags slot-number command.
The minimum hardware revision number for the PRP (Product Number PRP-1=)
is 73-5936-05, Rev. A0. The minimum hardware revision number for the PRP-2
(Product Number PRP-2=) is 73-8812-04 Rev. A0.
Note Output from the show diags command on a PRP-2 card running on software
releases prior to 12.0(30)S may incorrectly indicate “PRP-1+” or “FRU number
not known” as the installed FRU.

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Product Overview
Related Documentation
For additional information on the PRP, refer to these publications:
•Performance Route Processor Software Configuration in Cisco 12000 Series
Internet Routers
•Route Processor Redundancy Plus for the Cisco 12000 Series Internet Router
•Cisco IOS Release 12.0S Release Notes for Cisco 12000 Series Internet
Router
•Cisco IOS Configuration Fundamentals Configuration Guide
•Cisco IOS Configuration Fundamentals Command Reference
See the “Obtaining Documentation” section on page 88 for information on how to
obtain these publications.
Product Overview
The following sections provide information about the Performance Route
Processor (PRP), its components, functions, and features, and its use as the main
system processor for Cisco 12000 Series Routers. Figure 1 shows the front panel
view of the PRP-1.
Figure 1 PRP-1, Front Panel View
The PRP-1 is available as Product Number PRP-1 or PRP-1=, which includes one
PRP with 512 MB of synchronous dynamic random-access memory (SDRAM)
and one 64-MB advanced technology attachment (ATA) Flash disk. A redundant
PRP (Product Number PRP-1/R) is also available.
EJECT
RX
TX
PRIMARY
SLOT-1
SLOT-0
LINK
EN
RX
TX
ETH 1ETH 0 AUX CONSOLE
PERFORMANCE ROUTE PROCESSOR 1 (PRP-1)
LINK
PRIMARY
EN
RESET
75041

Product Overview
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Figure 2 shows the front panel view of the PRP-2.
Figure 2 PRP-2, Front Panel View
The PRP-2 is available as Product Number PRP-2 or PRP-2=, which includes one
PRP with 1 G of synchronous dynamic random-access memory (SDRAM) and
one 64-MB advanced technology attachment (ATA) Flash disk. A redundant PRP
(Product Number PRP-2/R) is also available.
PRP Functions
The PRP-1 for the Cisco 12000 Series Router includes the following primary
functions:
•Loading Cisco IOS software on all installed line cards at power up
•Providing a console (terminal) port for router configuration
•Providing an auxiliary port for other external equipment (such as modems)
•Providing two IEEE 802.3, 10/100-megabits-per-second (Mbps) Ethernet
ports for Telnet functionality
•Running routing protocols
•Building and distributing routing tables to line cards
•Providing general system maintenance functions
•Communicating with line cards either through the switch fabric or through
the maintenance bus (MBus). The MBus connection allows the PRP to
download a system bootstrap image, collect or load diagnostic information,
and perform general, internal system maintenance operations. The switch
fabric connection is the main data path for routing table distribution as well
as for packets that are sent between line cards and the PRP.
ACT SIG ACT SIG
SLOT-1
SLOT-0
CONSOLE ETH 2AUX
RESET
PERFORMANCE ROUTE PROCESSOR 2
BITS 1BITS 0
DATA LINK DATA LINK
ETH 1ETH 0
101104

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Product Overview
In addition to the functionality listed for the PRP-1, the PRP-2 provides the
following additional functions:
•One IEEE 802.3 10/100/1000-megabits-per-second (Mbps) Ethernet port
•Two building integrated timing system (BITS) ports for connecting to an
external clock source
PRP Components
The PRP-1 contains the following components:
•PowerPC processor—Motorola PowerPC 7450 central processing unit
(CPU). The CPU runs at an external bus clock speed of 133 MHz and an
internal clock speed of 667 MHz.
•SDRAM—Up to 2 gigabytes (GB) of Cisco-approved synchronous dynamic
random-access memory (SDRAM) on two dual in-line memory modules
(DIMMs). 512 MB of SDRAM is the default shipping configuration.
SDRAM is field replaceable only when using Cisco-approved DIMMs.
•SRAM—2 megabytes (MB) of static random-access memory (SRAM) for
secondary CPU cache memory functions. SRAM is not user configurable or
field replaceable.
•NVRAM—2 MB of nonvolatile RAM (NVRAM). NVRAM is not user
configurable or field replaceable.
•Memory—Additional memory components include onboard Flash memory
and up to two Flash disks.
•Sensors—Air-temperature sensors for environmental monitoring.

Product Overview
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The PRP-2 contains the following additional components:
•SDRAM—Up to 4 GB of Cisco-approved synchronous dynamic
random-access memory (SDRAM) on two dual in-line memory modules
(DIMMs). 1 GB of SDRAM is the default shipping configuration. SDRAM is
field replaceable only when using Cisco-approved DIMMs.
Note Software releases prior to 12.0(30)S do not recognize more than 2 GB of
SDRAM and will only use the first 2 GB of the installed memory. This
does not affect the functioning of the PRP-2, but commands such as show
version will indicate that only 2 GB of SDRAM are installed.
•Hard disk drive—40-GB hard disk drive can be optionally installed on the
PRP-2 board.
•CF—1-GB compact flash disk can be optionally installed on the PRP-2
board.
Cisco IOS Software Storage
The Cisco IOS software images that run the Cisco 12000 Series Router system are
stored in Flash memory. Two types of Flash memory ship with the PRP-1:
•Onboard Flash memory—Ships as a single in-line memory module (SIMM).
This Flash memory contains the Cisco IOS boot image (bootflash) and is not
field replaceable.
•Flash disk—The PRP ships with an ATA Flash disk that can be installed in
either Flash disk slot. The Flash disk contains the Cisco IOS software image.
Linear Flash memory cards are also supported in the PRP-1.

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Product Overview
The PRP-2 provides the following additional Flash memory:
•Compact Flash (CF) disk—Optional 1 GB CF can be used for large IOS
images.
Storing the Cisco IOS images in Flash memory enables you to download and boot
from upgraded Cisco IOS software images remotely, or from software images that
reside in PRP Flash memory.
Cisco 12000 Series Routers support downloadable system software for most
Cisco IOS software upgrades. This enables you to remotely download, store, and
boot from a new Cisco IOS software image. The Cisco IOS software runs from
within the SDRAM of the PRP.
For specific Cisco IOS software requirements for the PRP, see the “Cisco IOS
Software Requirements” section on page 3.
PRP Hardware Components
Figure 3 shows the locations of the various hardware components on the PRP-1.
Figure 4 shows the locations of the various hardware components on the PRP-2.
Memory options and functions for both are listed in Table 1.

Product Overview
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Figure 3 PRP-1 (Horizontal Orientation)
1Backplane connector 6Ethernet ports
2Flash SIMM (Socket number P3) 7Auxiliary port
3SDRAM DIMMs
Bank 1 - Socket number U15
Bank 2 - Socket number U18
8Console port
4Ejector lever 9Handle
5Flash disk slots (covered) 10 Display LEDs
EJECT
RX
TX
PRIMARY
SLOT-1
SLOT-0
LINK
EN
RX
TX
ETH 1ETH 0 AUX CONSOLE
PERFORMANCE ROUTE PROCESSOR 1 (PRP-1)
LINK
PRIMARY
EN
RESET
75042
2
4
1
5 7 8 109
6
3