Cisco Systems PRE3s Prospecto

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Quick Start Guide

mance Routing Engine
1-slot module that performs

er 3 packet routing and

g Parallel eXpress Forwarding

ould be performed by a

r who is familiar with the

sole interface.

This hardware upgrade has an impact on user
traffic. The router is not available for user traffic
during the upgrade, and traffic cannot resume until
the upgrade is complete.

PRE1s and PRE3s cannot operate in
the same chassis.

All new PRE3s are shipped with a helper image
stored in boot flash memory, and without any
configuration.

Make sure you save your configuration
information to a TFTP server before removing
the old PRE from the chassis.

You cannot save the configuration
information to a PRE2 media card to
use in a PRE3. When you remove the
former PRE from the chassis local
configuration information is lost.

Use the following procedure to save the
configuration information to a TFTP server.

Connect the console to the primary PRE.

Save the startup configuration and
running configuration to the TFTP server.

Use the following tools to perform the upgrade:

Phillips-head screwdriver

ESD grounding wrist strap

Always wear a grounding wrist strap
to prevent ESD damage to the module.

Use the following procedure to remove the existing
PRE module from the chassis.

Attach the ESD wrist strap to the chassis
to ensure you are properly grounded.

Power off the router.

Although PRE modules can be
hot-swapped, removing a module
terminates all traffic. We recommend
that you power off the router to
ensure a successful installation.

Disconnect all cables from the PRE.

Loosen the top and bottom captive screws.

Pivot both ejector levers simultaneously to
disengage the module from the backplane.

Remove the PRE from the chassis and
place it on an antistatic surface or in an
antistatic bag.

If you are replacing a redundant PRE,
repeat steps 3 though 6.

Use the following procedure t
module.

To ensure proper
install the primar
you install a redu
slot B, wait until 
and configured th
slot A before inst
PRE3 in slot B.

Attach the ESD wrist
to ensure you are pro

Inspect the backplane
chassis to make sure 
pins.

Slide the module into
feel it seat into the bac
and Figure 2).