Specifications

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Cisco MGX 8800/8900 Series Software Configuration Guide
Release 5.1, Part Number OL-6482-01, Rev. A0, January 25, 2005
Appendix A Downloading and Installing Software Upgrades
Upgrade Procedures for PXM Cards and Service Modules
Keep the following in mind when you use the abortrev command to abort the new runtime software
during an upgrade:
• If you enter the abortrev command on a redundant card set after the loadrev command was entered,
and while the cards are in the Loadrev Done-U state, only the standby card will be reset.
• If you enter the abortrev command on a redundant card set after you entered the runrev command,
while the cards are in the Runrev Done-U state, both the active and standby cards will be reset.
• If you enter the abortrev command on a single card, after you entered the loadrev command and
the card is in the Loadrev Done-U state, the card will not be reset.
• If you enter the abortrev command on a single card, after you entered the runrev command and the
card is in the Runrev Done-U state, will be reset.
• To display the current state of the card, enter the dsprevs command.
Caution Reverting to the previously used version of runtime software resets both PXM cards and terminates all
calls in progress.
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 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 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