Specifications

A-8
Cisco MGX 8850 (PXM45) and MGX 8950 Software Configuration Guide
Release 3, Part Number 78-14788-01 Rev. C0, January 2004
Appendix A Downloading and Installing Software Upgrades
Quickstart Procedures for Software Upgrades
Graceful AXSM or FRSM-12 Boot Upgrades
When performed properly, graceful upgrades have minimal impact on connections in progress and do
not interrupt any established connections. The quickstart procedure is provided as an overview and as a
quick reference for those who have already performed ungraceful upgrades on the switch.
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 and MGX 8830
Software Version 3 (PXM45/B and PXM1E) or the Release Notes
for Cisco MGX 8950 Software Version 3 call for a boot software
upgrade, upgrade the boot software as described in the
“Non-Graceful PXM45 Boot Upgrades” section, which appears
earlier in this appendix, or the “Non-Graceful AXSM Boot
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 configuration to the hard disk.
see the “Saving a Configuration” section in Chapter 7, “Switch
Operating Procedures.”
Step 5
dspcd
commitrev <slot> <revision>
Verify that all previous upgrades are 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.
Step 6
loadrev <slot> <revision>
dspcd
Define the new software version to be used.
Step 7
runrev <slot> <revision>
dspcd
Reset the card and run the new software version.
Step 8
commitrev <slot> <revision> This command prevents an accidental switch back to a previous
software revision if someone enters the abortrev command.
Enter the commitrev command after the former active PXM45
comes up in the standby-U state. Cisco Systems recommends that
you avoid configuration changes until after you have run the
commitrev or abortrev commands.
See the “Aborting a Runtime Software Upgrade” section and the
“Committing to a Runtime Software Upgrade” section, both of
which appear later in this appendix.