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
To revert to the previously used runtime software version, use the following procedure.
Step 1 Establish a configuration session using a user name with SERVICE_GP privileges or higher.
Step 2 To display the software revisions known to the switch, enter the dspcd <slot> command. (You can also
view the revision levels with the dsprevs command.)
Replace slot with the slot number of the active PXM45, AXSM, or FRSM-12 card. To complete the next
step, you need to know the secondary software revision shown in the display.
Note If the primary and secondary software revisions are the same, there is no other revision level to
revert back to.
Step 3 To abort use of the primary software revision and revert back to the secondary software revision, enter
the following command:
mgx8850a.7.PXM.a > abortrev <slot> <revision>
Replace <slot> with the card slot number for the active PXM45, AXSM, or FRSM-12 card, and replace
<revision> with the software version number for the secondary software revision.
Step 4 To verify that the standby card is running the previously used software version, enter the dspcd <slot>
command to view the software version in use. You can also view the revision levels with the dsprevs
command.
Committing to a Runtime Software Upgrade
Committing to an upgrade does the following:
• Disables use of the abortrev command to revert back to the previously used version of software
• Enables upgrading of the current version of software
Once you are sure that an upgrade is stable, you can use the commitrev command commit to that
software version. This prevents other administrators from inadvertently reverting to the previous version.
You must also commit to the current software version before you can upgrade to another software
version.
To commit to the currently running runtime software version, use the following procedure.
Step 1 Establish a configuration session using a user name with SERVICE_GP privileges or higher.
Step 2 Determine if there is an unfinished upgrade by entering one of the following commands:
a. If necessary, use the cc command to select the active PXM45 card.
b. Enter the dspcd <slot> command.
c. Check the dspcd command report to see if the same software revision is listed for the Primary
Software Revision (Prim SW Rev), Secondary Software Revision (Sec SW Rev), and Current
Software Revision (Curr SW Rev).
If all version numbers are identical, the runtime software can be upgraded. There is no need to
commit to the current software revision.