A-8
Cisco MGX 8850 (PXM1E/PXM45), Cisco MGX 8950, Cisco MGX 8830, and Cisco MGX 8880 Configuration Guide
Release 5.0.10, OL-3845-01 Rev. B0, August 16, 2004
Appendix A Downloading and Installing Software Upgrades
Quickstart Procedures for Software Upgrades
Note If you plan to upgrade PXM cards and service modules, upgrade the PXM cards first. Wait until the PXM
cards are operating in active and standby modes with the correct software before upgrading service
modules. The software version used by the PXM cards should be equal to or later than the version used
on the service modules. When service module boot software is to be upgraded, it should be upgraded
before upgrading the runtime software.
Caution Avoid making configuration changes while upgrading PXM software. Configuration changes can be lost
when the PXM is reset during the upgrade. While graceful upgrades can be aborted with the abortrev
command, the abortrev command does reset both active and standby cards, so reverting back to an
earlier software release is non-graceful.
Note Cisco Systems recommends that you upgrade software on one service module at a time within a switch.
Wait until each service module upgrade is complete before starting an upgrade on another service
module.
To upgrade the runtime software, use the following procedure.
Command Purpose
Step 1
ftp Copy the boot and runtime files you want to use to the switch.
See the “Copying Software Files to the Switch” section, which
appears later in this appendix.
Step 2
If the Release Notes for Cisco MGX 8850 (PXM1E/PXM45),
Cisco MGX 8950, and Cisco MGX 8830 Switches, Release 5.0.00
or the Release Notes for the Cisco MGX 8880 Media Gateway,
Release 5.0.00 call for a boot software upgrade, upgrade the boot
software for the card you are upgrading.
Note PXM cards should be upgraded first.
For instructions on upgrading service module boot software, see
the “Graceful Service Module Boot Software Upgrades” section,
which appears later in this appendix.
Step 3
username
password
Establish a CLI session with the active PXM45 card using a user
name with SERVICE_GP privileges.
Step 4
saveallcnf This optional step saves the current switch configuration to the
hard disk.
See the “Saving a Configuration” section in Chapter 9, “Switch
Operating Procedures.”
Step 5
dspcd
commitrev <slot> <revision>
Verify that all previous upgrades have been committed.
If a previous upgrade is not committed, commit to the new
upgrade.
See the “Committing to a Runtime Software Upgrade” section,
which appears later in this appendix.
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