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Upgrading Avaya Aura® Communication Manager
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Optional Upgrade Sequence
Last Updated : Mar 13, 2026 |
Prolog information
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With the Optional Upgrade Sequence feature, you can upgrade the main Communication Manager before you upgrade the Survivable Remote Servers (formerly known as Local Survivable Processors, or LSPs). When you upgrade using the Optional Upgrade Sequence feature, configurations do not synchronize between the upgraded main Communication Manager and Survivable Remote Servers running an older release.
Caution:
Read the Limitations before you implement this upgrade sequence.
Note:
The Optional Upgrade Sequence feature does not apply to the Survivable Core Server (formerly known as Enterprise Survivable Server, or ESS). Always upgrade the Survivable Core Server (ESS) before the main Communication Manager.
If you use the Avaya Solutions Platform (ASP) 130/S8300, verify that the Optional Upgrade Sequence is feasible for your setup. Review the latest ASP documentation to ensure your Communication Manager release is compatible with the underlying ASP hypervisor release.
Use the Optional Upgrade Sequence feature if you need your main Communication Manager to use the latest features before you upgrade Survivable Remote Servers (LSPs) at your branch locations.
Supported versions
With the Optional Upgrade Sequence feature, your main Communication Manager and Survivable Remote Servers (LSPs) can run different compatible versions.
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Main Communication Manager Release 10.2 and Release 10.3.
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Survivable Remote Servers (LSPs) Release 8.1.3.x and Release 10.1.x.
Important:
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Plan carefully before you implement the Optional Upgrade Sequence feature.
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The Optional Upgrade Sequence feature applies only to Survivable Remote Servers (LSPs). There is no change to the upgrade sequence for other Avaya Aura® components.
Upgrade sequence comparison
In the existing upgrade sequence, you must successfully upgrade all the Survivable Remote Servers before you upgrade the main Communication Manager. In environments with many remote sites, you must wait to upgrade the main Communication Manager until the successful upgrade of the Survivable Remote Servers (LSPs). The existing upgrade sequence delays the upgrade of the main Communication Manager. As a result, you cannot use the latest features and fixes until you update the entire network.
With the Optional Upgrade Sequence feature, you can first upgrade your main Communication Manager to the latest software version and use the latest features and fixes. The Survivable Remote Servers (LSPs) running an older software version continue to register with the upgraded main Communication Manager.
However, as the Survivable Remote Servers (LSPs) running an older software version do not synchronize with the upgraded main Communication Manager, they do not receive administrative changes until you upgrade them. To avoid disruptions, use the Optional Upgrade Sequence only if you do not expect administrative changes at your branch locations. Select Survivable Remote Servers (LSPs) for later upgrades to avoid the limitations of the Optional Upgrade Sequence feature.
While you use the latest features from the main Communication Manager, you can continue to upgrade your Survivable Remote Servers (LSPs) to the same or a later software version as your main Communication Manager. For example, if you want to upgrade to Avaya Aura® Release 10.3, which offers Trellix Antivirus support, identify the Survivable Remote Server (LSP) locations where you do not expect administrative changes and upgrade them after you upgrade your main Communication Manager. The upgraded main Communication Manager can use the Trellix Antivirus feature at the main location.
The following table provides a comparison between the existing upgrade sequence and the optional upgrade sequence. This example is for a setup with one Survivable Core Server (ESS), one main Communication Manager, and three Survivable Remote Servers (LSPs).
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Existing upgrade sequence
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Optional upgrade sequence
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As Survivable Remote Servers (LSPs) and the main Communication Manager server run the same version, configurations synchronize, and administrative changes are available across all servers.
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Example 1:
Example 2:
Example 3:
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Note:
Fixes for any issues with the Optional Upgrade Sequence feature are provided in the latest supported versions. For more information about the latest and most accurate compatibility information, see Avaya Product Lifecycle Matrix.
Limitations
If you use the Optional Upgrade Sequence feature, you experience the following limitations until the main Communication Manager and Survivable Remote Servers (LSPs) run on the same software version:
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SynchronizationConfigurations on the main Communication Manager do not synchronize with the Survivable Remote Servers (LSPs) because of the difference in software versions.
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Administrative changesAny administrative changes made to the upgraded main Communication Manager are unavailable to the Survivable Remote Servers (LSPs) running on a lower software version.
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AlarmsThe main Communication Manager generates a File Synchronization (FSY) warning alarm for the software version mismatch.After you upgrade the Survivable Remote Servers (LSPs) to the same or a later software version as the main Communication Manager, the FSY alarm clears automatically and administrative changes synchronize.For more information about the FSY alarm, see Avaya Aura® Communication Manager Alarms, Events, and Logs Reference.