Replacing Switch Fabric Components; Upgrading An Mx240 Scb; Preparing For The Upgrade - Juniper MX240 Hardware Manual

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Table of Contents

Replacing Switch Fabric Components

Upgrading an MX240 SCB on page 347

Replacing an MX240 SCB on page 355

Preparing for the Upgrade on page 347

Upgrading the SCB in the Backup Routing Engine on page 349

Upgrading the SCB in the Master Routing Engine on page 351

Completing the SCB Upgrade on page 353

Do not make other changes to the CLI during the entire upgrade

process. You can ensure that you will not make such changes by opening a

telnet session to the master RE CLI operational mode and issuing the

command. This command locks the configuration procedure.

To prevent traffic loss during the upgrade process, we recommend that

you operate the line cards at 50% line rate. This 50% limit must be

maintained per PFE on each line card.

To prepare the MX240 router for the Enhanced MX Switch Control Board (MX SCBE)