Cisco PRP-1= Manuale dell'operatore

Corporate Headquarters:

Cisco Systems, Inc., 170 West Tasman Drive, San Jose, CA 95134-1706 USA

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

PRIMARY

SLOT-1

SLOT-0

LINK

ETH 1ETH 0 AUX

CONSOLE

PERFORMANCE ROUTE PROCESSOR 1 (PRP-1)

LINK

PRIMARY

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

PRIMARY

SLOT-1

SLOT-0

LINK

ETH 1ETH 0 AUX

CONSOLE

PERFORMANCE ROUTE PROCESSOR 1 (PRP-1)

LINK

PRIMARY

RESET

75042

5 7 8 109

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