Appendix; Downloading And Installing Software Upgrades; Upgrade Process Overview - Cisco MGX 8850 (PXM1E/PXM45) Configuration Manual

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Downloading and Installing Software Upgrades

This appendix describes how to locate, download, and install software updates for the switch. Because
software updates are stored in the switch file system, this appendix includes a section on browsing the
file system. This appendix includes the following sections:
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Upgrade Process Overview

This appendix provides a series of quickstart procedures that describe how to perform graceful and
non-graceful upgrades to the switch. To perform a graceful upgrade on a switch card, the card must be
operating in redundant mode with another switch card of the same type. When performed properly,
graceful upgrades have minimal impact on connections in progress and do not interrupt any established
connections.
Note Graceful upgrades to Release 5.0 are supported from Release 3.0.25 and later. If you are running a
release prior to Release 3.0.25, you must upgrade to Release 3.0.25 before you can upgrade to Release
5.0.
When a card to be upgraded is not operating in redundant mode, you must complete a non-graceful
upgrade, which disrupts all traffic that passes through the card. For PXM cards, an ungraceful upgrade
interrupts all traffic passing through the switch. For all other types of cards, an ungraceful upgrade
affects only the traffic that passes through that card.
Release 5.0.10, OL-3845-01 Rev. B0, August 16, 2004
Upgrade Process Overview
Quickstart Procedures for Software Upgrades
Quickstart Procedures for Software Downgrades
Browsing the File System
Locating Software Updates
Copying Software Files to the Switch
Upgrade Procedures for PXM Cards and Service Modules
Upgrade Procedures for RPM-PR and RPM-XF Cards
Troubleshooting Upgrade Problems
Cisco MGX 8850 (PXM1E/PXM45), Cisco MGX 8950, Cisco MGX 8830, and Cisco MGX 8880 Configuration Guide
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