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Cisco 10000 Series Router Performance Routing Engine Installation

OL-3971-03

Upgrading from an ESR-PRE or ESR-PRE1 to an ESR-PRE2

Upgrading from an ESR-PRE or ESR-PRE1

to an ESR-PRE2

This section describes the procedures for upgrading the Performance Routing Engine from an ESR-PRE

or ESR-PRE1 to an ESR-PRE2. Procedures for downgrading from an ESR-PRE2 to an ESR-PRE1 or

ESR-PRE are also described.

• Prerequisites, page 25

• Upgrade Considerations, page 25

• Upgrade Procedures, page 26

• Troubleshooting the Installation, page 29

Prerequisites

For all of the software features supported by your current ESR-PRE (c10k-p6-mz) or ESR-PRE1

(c10k-p10-mz) image to function correctly, they must be supported by the ESR-PRE2 (c10k2-p11-mz)

image. Please check with your Cisco marketing representative to verify the correct upgrade path before

initiating the upgrade.

The upgrade should be performed by a qualified engineer. This person must be familiar with the Cisco

router console interface and be able to perform basic router operations, such as configuration loading

and router reload functions.

Caution Do not perform this upgrade if your current ESR-PRE or ESR-PRE1 software image supports new

features not yet supported by the ESR-PRE2 software image. Performing this upgrade will cause these

features to fail.

Upgrade Considerations

• This is a service impacting hardware upgrade. The router will not be available for user traffic during

the upgrade, and traffic cannot resume until the upgrade is complete.

• ESR-PREs or ESR-PRE1s cannot operate with an ESR-PRE2 in the same chassis and should never

be installed in a chassis together.

• All new ESR-PRE2s are shipped with a helper image (c10k-eboot-mz) stored in the boot flash

memory, and without any configuration.

• If the existing ESR-PRE or ESR-PRE1 has a removable flash-based media card, you can copy your

startup and running configuration to the media card, and you can use it on the ESR-PRE2 after the

upgrade.

If the media card has enough space, the new ESR-PRE2 image can also be copied there, which will

save time later on. If you desire to do this, download the latest ESR-PRE2 (c10k2-p11-mz) image

from the TFTP server to the removable media card in disk0/1 or slot0/1.

Note If you have redundant PREs installed in the Cisco 10000 chassis, and you intend to save the

startup and running configuration, and the new ESR-PRE2 image to the flash-based media card,

be sure that you save them to both flash-based media cards on both PREs.

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