Cisco Systems ESR-PRE2 quick start Description, Upgrading to a PRE2, Upgrade Considerations

Quick Start Guide

Cisco Performance Routing

Engine (ESR-PRE2) Upgrade

Installation

1Description

2Upgrading to a PRE2

3Troubleshooting

4Technical Specifications

5Related Documentation

Warning	Only trained and qualified
	personnel should be allowed to
	install, replace, or service this
	equipment. Statement 1030
Caution	Always wear a grounding wrist
	strap to avoid ESD damage to the
	module.

1Description

The Cisco Performance Routing Engine (ESR-PRE2) is a single-slot module that performs Layer 2 and Layer 3 packet routing and forwarding using Parallel eXpress Forwarding (PXF).

2Upgrading to a PRE2

This upgrade should be performed by a qualified engineer who is familiar with the Cisco router console interface.

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.

•PREs or PRE1s cannot operate with a PRE2 in the same chassis and should never be installed in a chassis together.

•PRE2 modules to be installed must have the helper image (eboot) stored in the onboard boot flash, no configuration, and must be set to boot into ROMMON. Individual PRE2 modules ship in this state.

•The new PRE2 image must exist on the TFTP server.

Saving the Startup and Running Configuration Information

When the PRE or PRE1 is removed from the chassis, any local configuration is lost. You must save your configuration information to the TFTP server or media card before removing the module.

If you plan to use the media card from your current PRE or PRE1, you can save your startup configuration, running configuration, and the latest PRE2 image (from the TFTP server) to the media card.

Saving to a Media Card

Step 1 Connect the console to the primary PRE or PRE1.

Step 2 Copy the startup configuration and running configuration to the existing removable media card.

Step 3 Download the full PRE2 image from the TFTP server to the media card.

Step 4 If you have a redundant PRE or PRE1, save this information on the redundant PRE or PRE1 media card.

Step 5 Remove the media cards from the modules and set them aside.

Saving to the TFTP Server

Step 1 Connect to the primary PRE or PRE1 console.

Step 2 Save the startup configuration and running configuration to the TFTP server.

Removing the PRE or PRE1 Module

Note Modules can be hot-swapped. However, removing a module terminates all traffic. We recommend that you power down the router to ensure a successful installation.

Warning	Hazardous voltage or energy is
	present on the backplane when the
	system is operating. Use caution
	when servicing. Statement 1034

Step 1 Ensure that you are properly grounded. Step 2 Power down the router

Step 3 Disconnect the cables from the PRE/PRE1.

Step 4 Unscrew the captive screws.

Step 5 Simultaneously pivot both ejector levers away from each other to disengage the module from the backplane.

Step 6 Slide the PRE/PRE1 out of the slot and place it on an anti-static surface or in an anti-static bag.

Step 7 If you are replacing a redundant PRE/PRE1, repeat Step 3 through Step 6.

Installing a PRE2 Module

Note To ensure proper operation, always install a single PRE2 in slot A. If you are installing a redundant PRE2 in slot B, wait until after you have installed and configured the primary PRE2 in slot A.

Equipment

ESD wrist strap

Replacement PRE2 modules

Step 1 Ensure that you are properly grounded.

Step 2 Inspect the connectors on both the PRE2 and the backplane. Bent or broken pins can cause a system malfunction.

Step 3 Carefully align the PRE2 module with the guides in slot A in the chassis.

Step 4 Slide the module into the slot until you can feel it seat in the backplane.

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