Cisco Systems PRP-2, PRP-2-R, PRP-1-R, PRP-1 User 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
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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Regulatory, Compliance, and Safety Information, page 79
Obtaining Documentation, page 84
Documentation Feedback, page 85
Cisco Product Security Overview, page 85
Product Alerts and Field Notices, page 87
Obtaining Technical Assistance, page 88
Obtaining Additional Publications and Information, page 90
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.
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Important Information

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
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 84 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
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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 Tabl e 1.
Product Overview
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Figure 3 PRP-1 (Horizontal Orientation)
1 Backplane connector 6 Ethernet ports
2 Flash SIMM (Socket number P3) 7 Auxiliary port
3 SDRAM DIMMs
Bank 1 - Socket number U15
Bank 2 - Socket number U18
8 Console port
4 Ejector lever 9 Handle
5 Flash disk slots (covered) 10 Display LEDs
EJE
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RX
TX
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SLOT-1
SLOT-0
LINK
EN
RX
TX
ETH 1ETH 0 AUX
CONSOLE
PERFORMANCE ROUTE PROCESSOR 1 (PRP-1)
LINK
P
R
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A
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EN
RESET
75042
2
4
1
5 7 8 109
6
3
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Product Overview
Figure 4 PRP-2 (Horizontal Orientation)
1 Compact Flash disk (optional) 8 Console port
2 Flash SIMM (Socket number P3) 9 Gigabit Ethernet port
3 Ejector lever 10 Handle
4 Flash disk slots (covered) 11 Display LEDs
5 Ethernet ports 12 SDRAM DIMM: Bank 1 - Socket number U15
6 BITS ports 13 SDRAM DIMM: Bank 2 - Socket number U18
7 Auxiliary port 14 Hard disk drive (optional)
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Product Overview
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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
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Product Overview

SDRAM

SDRAM stores routing tables, protocols, and network accounting applications,
and runs the Cisco IOS software. The default PRP-1 configuration includes 512
MB of error checking and correction (ECC) SDRAM. DIMM upgrades of 512 MB
and 1 GB are available for the PRP-1. You cannot mix memory sizes. If two
DIMMS are installed, they must be the same memory size.
The default PRP-2 configuration includes 1 GB of ECC SDRAM. DIMM
upgrades of 1 GB and 2 GB are available for the PRP-2. You can mix memory
sizes as long as the larger DIMM is placed in bank 1 (U15).
Caution Only Cisco-approved memory is supported. Do not attempt to install other devices
or non-Cisco approved DIMMs in the DIMM sockets. (See Table 15 on page 74.)

SRAM

SRAM provides 2 MB of parity-protected, secondary CPU cache memory. Its
principal function is to be a staging area for routing table updates and for
information sent to and from line cards. SRAM is not user configurable or field
replaceable.

NVRAM

NVRAM provides 2 MB of memory for system configuration files, software
configuration register settings, and environmental monitoring logs. This
information is backed up with built-in lithium batteries that retain the contents for
a minimum of 5 years. NVRAM is not user configurable or field replaceable.
Product Overview
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Flash Memory

Flash memory allows you to remotely load and store multiple Cisco IOS software
and microcode images. You can download a new image over the network or from
a local server and then add the new image to Flash memory or replace the existing
files. You then can boot the routers either manually or automatically from any of
the stored images.
Flash memory also functions as a Trivial File Transfer Protocol (TFTP) server to
allow other servers to boot remotely from stored images or to copy them into their
own Flash memory. The onboard Flash memory (called bootflash) contains the
Cisco IOS boot image, and the Flash disk contains the Cisco IOS software image.

PRP LEDs

The following LEDs are used on the PRP:
Status LEDs
Display LEDs

Status LEDs

The PRP-1 has the following Status LED indicators:
Two Flash disk activity LEDs, one for each Flash disk slot (labeled SLOT-0
and SLOT-1)—Indicate when the Flash disk slot is accessed.
Four Ethernet port LEDs used in conjunction with each of the RJ-45 Ethernet
connectors:
LINK—link activity
EN—port enabled
TX—data transmission
RX data reception
Two Ethernet connection LEDs, one for each Ethernet port (labeled
PRIMARY)—Identify which of the two Ethernet connections is selected.
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Product Overview
The PRP-2 has the following LED indicators:
Two Flash disk activity LEDs, one for each Flash disk slot (labeled SLOT-0
and SLOT-1)—Indicate when the Flash disk slot is accessed.
Two Ethernet port LEDs used in conjunction with each of the three RJ-45
Ethernet connectors:
LINK—indicates link activity
DATA—indicates data transmission or reception
Two BITS port LEDs used in conjunction with each of the two BITS ports:
SIG—indicates carrier signal available
ACT—indicates the interface is active

Display LEDs

The alphanumeric display LEDs are organized as two rows of four characters each
and are located at one end of the card. These LEDs provide system status and error
messages that are displayed during and after the boot process. The boot process
and the content displayed are controlled by the MBus module software of the PRP.
At the end of the boot process, the LEDs are controlled by the Cisco IOS software
(via the MBus), and the content displayed is designated by the Cisco IOS
software.
A complete, descriptive list of all system and error messages is located in the
Cisco IOS System Error Messages publications.
The display LEDs indicate the following:
Status of the PRP
System error messages
User-defined status/error messages
Product Overview
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Soft Reset Switch

A soft reset switch provides a reset to the processor software on the PRP. You
access the soft reset switch through a small opening in the PRP faceplate. To
depress the switch, insert a paper clip or a similar object into the opening.
Caution The soft reset switch is not a mechanism for resetting the PRP and reloading the
IOS image. It is intended for software development use. To prevent system
problems or loss of data, use the soft reset switch only on the advice of Cisco
service personnel.

Flash Disk Slots

The PRP includes two Flash disk slots on the front panel of the card. Either slot
on the PRP-1 can support an ATA Flash disk or a linear Flash memory card. The
Flash disk slots on the PRP-2 can only support ATA Flash disks.
Note The PRP only supports +5 VDC Flash disk devices. It does not support +3.3 VDC
Flash disk devices.
All combinations of different Flash devices are supported by the PRP-1. You can
use ATA Flash disks, linear Flash memory cards, or a combination of the two.
Each Flash disk slot has an ejector button for ejecting a card from the slot. See the
“Using Flash Disks in the PRP” section on page 61 for more information.
Note Linear Flash memory cards may not have the capacity to meet the requirements
of your configuration. However, they can be used for emergency file recovery
applications.
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Product Overview

Asynchronous Serial Ports

The PRP has two asynchronous serial ports, the console and auxiliary ports. These
allow you to connect external serial devices to monitor and manage the system.
Both ports use RJ-45 receptacles.
The console port provides a data circuit-terminating equipment (DCE) interface
for connecting a console terminal. The auxiliary port provides a data terminal
equipment (DTE) interface and supports flow control. It is often used to connect
a modem, a channel service unit (CSU), or other optional equipment for Telnet
management.

Ethernet Ports

The PRP includes two 10/100 Mbps Ethernet ports, each using an 8-pin RJ-45
receptacle for either IEEE 802.3 10BASE-T (10 Mbps) or IEEE 802.3u
100BASE-TX (100 Mbps) connections.
The PRP-2 includes a 10/100/1000 Mbps Ethernet port, which uses the above
connections and also a 802.3 Gigabit Ethernet connection.
Note The transmission speed of the Ethernet ports is auto-sensing by default and is user
configurable.

Hard Disk Drive

The PRP-2 optionally includes a 40-GB hard disk drive (HDD) that is installed on
the PRP-2 board.
Note Non-Cisco hard disk drives are not supported.

Preparing for Installation

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Compact Flash Disk

The PRP-2 optionally includes a 1-GB compact flash disk that is installed on the
PRP-2 board.
Note Non-Cisco compact flash disks are not supported.
Preparing for Installation
Installation preparation is presented in the following sections:
Safety Guidelines, page 18
Preventing Electrostatic Discharge, page 19
Required Tools and Equipment, page 20
Working with Electrical Equipment, page 20

Safety Guidelines

Before you perform any procedure in this publication, review the safety
guidelines in this section to avoid injuring yourself or damaging the equipment.
The following guidelines are for your safety and to protect equipment. The
guidelines do not include all hazards. Be alert.
Note Review the safety warnings listed in the Regulatory Compliance and Safety
Information for Cisco 12000 Series Internet Router publication (Document
Number 78-4347-xx) that accompanied your router before installing, configuring,
or maintaining a line card.
Keep the work area clear and dust free during and after installation. Do not
allow dirt or debris to enter into any laser-based components.
Do not wear loose clothing, jewelry, or other items that could get caught in
the router while working with line cards.
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Preparing for Installation
Cisco equipment operates safely when it is used in accordance with its
specifications and product usage instructions.
If you plan to replace a PRP, back up your current configuration file to a
remote server or to Flash memory before you remove the PRP. This prevents
you from having to reenter all your current configuration information
manually. To back up the file, copy your configuration file to a Flash disk or
access a remote server.

Preventing Electrostatic Discharge

Electrostatic discharge (ESD) damage, which can occur when electronic cards or
components are improperly handled, results in complete or intermittent failures.
Electromagnetic interference (EMI) shielding is an integral component of the line
card. Cisco recommends using an ESD-preventive strap whenever you are
handling network equipment or one of its components.
The following are guidelines for preventing ESD damage:
Always use an ESD-preventive wrist or ankle strap and ensure that it makes
good skin contact. Connect the equipment end of the connection cord to an
ESD connection socket on the router or to bare metal on the chassis.
Handle PRPs by the captive installation screws, the provided handle, ejector
levers, or the line card metal carrier only; avoid touching the board or
connector pins.
Place removed PRPs board-side-up on an antistatic surface or in a static
shielding bag. If you plan to return the component to the factory, immediately
place it in a static shielding bag.
Avoid contact between the PRPs and clothing. The wrist strap only protects
the board from ESD voltages on the body; ESD voltages on clothing can still
cause damage.
Warning
For safety, periodically check the resistance value of the ESD strap. The
measurement should be between 1 and 10 megohms.

Removing and Installing a PRP

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Required Tools and Equipment

You need the following tools and parts to remove and install a PRP:
Flat-blade or Phillips screwdriver
ESD-preventive wrist strap and instructions
Antistatic mat, foam pad, or bag for the removed PRP. Place the removed PRP
into an antistatic bag if you plan to return it to the factory, or on an antistatic
mat or foam if you are replacing components and will reinstall the PRP.

Working with Electrical Equipment

Follow these basic guidelines when working with any electrical equipment:
Before beginning any procedure requiring access to the chassis interior,
locate the emergency power-off switch for the room in which you are
working.
Disconnect all power and external cables before moving a chassis.
Do not work alone when potentially hazardous conditions exist; never assume
that power has been disconnected from a circuit; always check.
Do not perform any action that creates a potential hazard to people or makes
the equipment unsafe.
Carefully examine your work area for possible hazards such as moist floors,
ungrounded power extension cables, and missing safety grounds.
Removing and Installing a PRP
The following sections describe the procedures for removing and installing a PRP
as well as removing and installing other field-replaceable hardware on the PRP-2
board. Before beginning the procedures, verify that your system meets the
minimum requirements as described in the “Preparing for Installation” section on
page 18.
Removing a PRP, page 21
Installing a PRP, page 24
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Removing and Installing a PRP
Note The procedures in the following sections use illustrations of a Cisco 12404
Internet Router to support the descriptions of installing and removing a route
processor card. The card cages of Cisco 12000 Series Routers differ in many
ways. However, the process of installing and removing a route processor card are
basically the same across the entire chassis line. Therefore, separate procedures
and illustrations for each chassis are not included in this publication.
Caution Cisco recommends that you do not remove a PRP while the system is operating.
Doing so will cause the system to stop forwarding packets and might cause the
system to cease network operation. If you are upgrading your router from a GRP
to a PRP, you must first power down the router and then switch out the RP cards.
Cisco strongly recommends that you avoid configuring your router using mixed
RP cards. If RP redundancy is desired, you must install two PRPs.
Note You must remove the PRP-2 before you can install or remove the compact flash
disk or the hard disk drive. See the Additional Configuration and Maintenance
Tasks” section on page 54 for more information.

Removing a PRP

When you remove a PRP from a slot, be sure to use the ejector levers, which help
to ensure that the PRP is fully dislodged from the backplane connector. A PRP
that is only partially removed from the backplane can halt the system. (See
Figure 6.)
Caution Before you replace the PRP, back up the running configuration to a TFTP server
or a Flash disk so that you can retrieve it later. If the configuration is not saved, it
will be lost and you will have to reenter the entire configuration manually. This
procedure is not necessary if you are temporarily removing a PRP; lithium
batteries will retain the configuration in memory until you replace the PRP in the
system.
Removing and Installing a PRP
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Figure 5 illustrates the PRP installed in a chassis.
Figure 5 Installed PRP (Cisco 12404 Shown)
1 PRP 2 Ejector Levers
CONSOLIDATED SWITCH FABRIC
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Removing and Installing a PRP
Figure 6 shows the ejector levers in detail.
Figure 6 Ejector Lever Detail (Cisco 12404 shown)
To remove a PRP, follow these steps:
Step 1 If you are replacing the PRP in a system with only one PRP, copy the currently
running configuration file to a TFTP server or to a Flash disk so that you can
retrieve it later.
Step 2 Turn off system power.
Step 3 Attach an ESD-preventive wrist strap and follow its instructions for use.
Step 4 If you are replacing a PRP, disconnect any devices that are attached to the
Ethernet, console, or auxiliary ports. If you are removing a PRP for maintenance
and will reinstall the same one, you can leave the devices attached, provided that
doing so will not strain the cables.
Step 5 Using a 3/16-inch flat-blade screwdriver, loosen the two captive screws on the
ends of the PRP.
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Removing and Installing a PRP
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Step 6 Place your thumbs on the ends of each of the ejector levers and simultaneously
pull them both away from the PRP faceplate (in the direction shown in Figure 6a)
to release the PRP from the upper card cage slot and to dislodge the PRP edge
connector from the backplane.
Step 7 Grasp the PRP faceplate handle with one hand and pull the PRP straight out of the
slot, keeping your other hand under the PRP to guide it. Keep the PRP edge
connector parallel to the backplane.
Caution Avoid touching the PRP printed circuit board, components, or any edge connector
pins.
Step 8 Place the removed PRP on an antistatic mat or foam. If you plan to return the PRP
to the factory, immediately place it in an antistatic bag to prevent ESD damage.

Installing a PRP

When you install a PRP, be sure to use the ejector levers, which help to ensure that
the PRP is fully inserted in the backplane connector. (See Figure 6.) When you
push the ejector levers simultaneously inward (toward the center of the PRP), the
ejector levers push the PRP into the slot and ensure that the PRP backplane
connector is fully seated in the backplane.
Caution A PRP that is only partially connected to the backplane can halt the system.
To install a PRP, follow these steps:
Step 1 Turn off system power.
Step 2 Attach an ESD-preventive wrist strap and follow its instructions for use.
Step 3 Grasp the PRP faceplate handle with one hand and place your other hand under
the carrier to support and guide it into an upper card cage slot.
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Removing and Installing a PRP
Caution Avoid touching the PRP printed circuit board, components, or any edge connector
pins.
Step 4 Place the bus-connector edge of the PRP in the appropriate slot and align the
notches along the edge of the carrier with the grooves at the top and bottom of the
slot.
Step 5 While keeping the PRP edge connector parallel to the backplane, carefully slide
the carrier into the slot until the PRP faceplate makes contact with the ejector
levers, then stop.
Step 6 Using the thumb and forefinger of each hand to pinch each ejector lever, push both
ejectors simultaneously toward the center of the PRP faceplate until they are
perpendicular to the PRP faceplate. (See Figure 6b.)
Step 7 Using a 3/16-inch flat-blade screwdriver, tighten the captive screws on the ends
of the PRP. The captive screws prevent the PRP from becoming partially
dislodged from the backplane and ensure proper EMI shielding. (These captive
screws must be tightened to meet EMI specifications.)
Step 8 If you disconnected cables to remove the PRP, or if you are installing a new PRP,
reconnect the cables to the appropriate ports. (See the “Checking the Installation”
section on page 26.)
Step 9 Ensure that the console terminal is turned on.
Step 10 Turn on system power.
Step 11 Attach the network end of your RJ-45 cable to your transceiver, switch, hub,
repeater, DTE, or other external equipment. Be sure to use the appropriate strain
relief on cable connections.

Checking the Installation

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Checking the Installation
This section assists you in confirming that the PRP is installed successfully and
includes the following sections:
PRP Boot Process, page 26
Starting the System and Observing Initial Conditions, page 27
Verifying Interface Status, page 31

PRP Boot Process

The following sequence describes a typical PRP boot process:
1. System power is turned on.
2. MBus module receives +5 VDC and starts executing MBus software.
3. PRP determines the system configuration by sending a message over the
MBus requesting all installed devices to identify themselves. The return
response provides slot number, and card and component type. The PRP, line
cards, and clock scheduler cards (CSCs) are then powered up.
4. PRP power-on-reset logic delay, which allows power and both local and CSC
clocks to stabilize.
5. After the power-on reset is released, the PRP begins to execute the ROM
monitor software.
6. If the ROM monitor is configured to autoboot, it loads and boots the Cisco
IOS software.
or
If the ROM monitor is not configured to autoboot, you must enter the
appropriate b command at the ROM monitor prompt (
Rommon>) to boot the
Cisco IOS software.
7. When the Cisco IOS software boots, it polls all other cards in the system and
powers them up, loading their Cisco IOS software as needed.
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Checking the Installation

Starting the System and Observing Initial Conditions

This section describes the initial system startup processes and procedures.
To start your system, follow these steps:
Step 1 Turn on each installed power supply by turning its system power switch to the on
(|) position.
For AC-input power supplies, the green AC OK LED should go on. For DC-input
power supplies, the green input OK LED should go on. For both types of power
supplies, the output fail LED should be off.
Step 2 Listen for the system blower modules or fan trays in the router; you should
immediately hear them operating. In a noisy environment, place your hand in
front of the exhaust vents to verify that the blower modules are operating.
Step 3 During the PRP boot process, observe the PRP alphanumeric display LEDs,
which are located at one end of the PRP, near the ejector lever. (See Figure 7.)
The 4-digit displays show system messages and displays a sequence similar to that
shown in Tab le 2.
Checking the Installation
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Figure 7 PRP Alphanumeric Display LEDs (Vertical View)
1 Upper (or left if horizontal) LED Display 2 Lower (or right if horizontal) LED Display
Table 2 PRP Alphanumeric Display LED Sequences
LED Display Description
MROM
nnnn
PRP microcode loads into MBus random-access memory (RAM); where nnnn
is the microcode version. For example, Microcode Version 1.17 displays as
0117.
1
1. The version of microcode running on your PRP might be different.
RP
RDY
The ROMMON for this PRP is enabled and recognized by the system.
ACTV
RP
Cisco IOS is enabled and this PRP is the active PRP.
STBY
RP
Cisco IOS is enabled and this PRP is in standby mode.
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