Specifications

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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
Upgrade Procedures for PXM45, AXSM, and FRSM-12 Cards
For non-graceful upgrades, the load process defines the software version to which the switch is about to
be upgraded. Table A-3 shows how the revision levels change during a non-graceful upgrade.
If you are performing a graceful upgrade, use the quickstart procedure described in the “Graceful
PXM45, AXSM, and FRSM-12 Runtime Software Upgrades” section, which appears earlier in this
appendix. The following procedure provides detailed information on the load task within the quickstart
procedure.
Step 1 To load the upgrade runtime software version on a PXM45, AXSM, or FRSM-12 card, enter the loadrev
command as follows:
mgx8850a.7.PXM.a > loadrev <slot> <revision>
Replace <slot> with the card slot number for the card to be upgraded, and replace <revision> with the
software version number for the update. For graceful upgrades, you can specify either the active or the
standby card. The switch software will automatically load the upgrade software on the standby card
when it is installed. The following example shows how to enter this command:
mgx8850a.7.PXM.a > loadrev 7 2.1(0)
After you enter the loadrev command, the standby card comes up in the standby-U state.
You can find the software version number in 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. You can also determine the version number from the runtime software filename as described in the
“Determining the Software Version Number from Filenames” section, which appears in Chapter 7,
“Switch Operating Procedures.”
Step 2 When prompted to confirm the command, type y and press Return to continue.
Step 3 To verify that the load command was processed correctly, enter the dspcd <slot> command and check
the status of the software revision levels. You can also view the revision levels with the dsprevs
command.
Note In a standalone configuration, the switch does not start the upgraded software until the runrev
command is entered. In a redundant configuration, the switch starts the upgraded software on
the standby card. The standby card does not become active until the runrev command is entered.
Table A-3 Software Versions Reported During Non-Graceful Upgrades
Software Revision Before Upgrade After loadrev After runrev After commitrev
Primary 2.1(0) 2.1(0) 3.0(0.0) 3.0(0.0)
Secondary 2.1(0) 3.0(0.0) 2.1(0) 3.0(0.0)
Current 2.1(0) 2.1(0) 3.0(0.0) 3.0(0.0)