Appendix A: Upgrading the Application Software

Overview

Upgrading the switch software involves the following steps:

1. Backing Up the Current Software
2. Backing Up the Previous Configuration
3. Downloading Application Software
4. Setting the Startup Image
5. Synchronizing the Active and Standby Supervisor Modules
6. Resetting the Active Supervisor
7. Resetting the Standby Supervisor
8. Verifying the Upgrade

This appendix contains procedures for each of these steps.

CAUTION: Before downgrading the switch from v6.x application software to v5.x, you must initialize NVRAM (nvram initialize command). If you do not initialize NVRAM before downgrading the application software, the switch may not respond or may exhibit unexpected behavior after you reset it.

If the switch has multiple VLANs statically bound to hunt group ports, and you upgrade from application software earlier than v5.3, you must delete the hunt groups and set them up again. For information on how to perform this task, see "Upgrading a Switch with Multiple VLANs Statically Bound to Hunt Group Ports" later in this appendix.

For more information about the CLI commands that are mentioned in this appendix, see Command Reference Guide for the Avaya P580 and P882 Multiservice Switches, Software Version 6.2