Installation & Operation Manual
828
Document # LTRT-92224
Mediant 8000
46.6
Rollback
At any time during an upgrade process, you can perform a rollback to the previous
software configuration by pressing the
Abort
button in the Online Software Upgrade
Wizard. In addition to that, the EMS automatically triggers a rollback in case of
abnormal upgrade process failure.
Note:
Rollback is triggered by pressing the
Abort
button and not the
button (in
the top-right window corner).
Rollback is graceful at
any
stage. Only those Media Gateway boards that were
upgraded to the new software version are reset. The reset is done gracefully – similar
to the way the upgrade is performed via Graceful Shutdown mechanism. The ES
boards are downgraded to the previous version automatically one by one – without
any affect on the service (for more information, see Section 'Overview' on page
Note:
The
Hitless Upgrade
mechanism is not supported for rollback. Rollback is
always performed via the
Graceful Shutdown
mechanism.
46.7
Software Upgrade/Rollback Troubleshooting
If you experience an unexpected software or hardware problem during online software
upgrade (e.g., if the PC on which the EMS client runs, crashes, or the network
connection to the media Gateway is lost) and because of the failure you can neither
complete nor abort the online software upgrade, you must perform a manual rollback
to the previous software configuration.
Note:
Prior to starting the Manual Rollback, verify if upgrade can be recovered
from the specific scenario as described in the previous section.
Summary of Contents for Mediant 8000
Page 2: ......
Page 33: ...Part I Hardware Overview This part describes the hardware overview of the Mediant 8000 chassis...
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Page 546: ......
Page 775: ...Part VI Maintenance This part describes the Mediant 8000 maintenance procedures...
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Page 879: ...Part VIII Appendices This part describes additional Mediant 8000 configuration procedures...
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Page 924: ...Media Gateway Mediant 8000 www audiocodes com Installation Operation Maintenance Manual...