Avaya S8100 Series Manual page 92

Upgrading Communication Manager on Avaya S8500 Media Server or S8500 ESS Using Maintenance Web
The correct order is:
1. If the system includes one or more LSPs, upgrade Communication Manager on the S8300
or S8500 LSP to the latest version.
2. Upgrade the firmware on the media gateway and the media modules to the latest version.
3. If using ESSs, upgrade Communication Manager on the S8500 or S8700-series ESS to the
latest version.
4. Upgrade Communication Manager on the S8500 or S8700-series primary controller to the
latest version.
Upgrade of Communication Manager on the S8300 LSPs and ESSs, if any
For more information on S8300 LSP upgrades, see Installing and Upgrading the Avaya G700
Media Gateway and Avaya S8300 Media Server (555-234-100).
Note:
An LSP does not accept translations if it is running a version of Communication
Note:
Manager that is older than that of the primary controller. However, the LSP
remains registered with the primary controller,
You might use the Upgrade Tool, available on the Web pages of the primary controller, to
upgrade Communication Manager on all the LSPs and ESSs. However, to use the tool, the
following files must be resident on each LSP and ESS:
Communication Manager
●
Authentication file
●
For more information about using the Upgrade Tool, see Job Aid: Upgrade Tool and
Worksheets, 555-245-757.
Stopping and starting LSPs
Before you upgrade the S8500 Media Server, you might want to stop call processing on the
LSPs. With call processing stopped, the media gateway and the IP telephones can quickly
reregister with the primary controller after the upgrade.
If you stop call processing on the LSPs, you must restart call processing on the LSPs when the
primary controller upgrade is complete. In addition, if the upgrade has problems so that service
from the server is lost, all telephones go out of service. This loss of service includes telephones
assigned to backup service on the LSPs.
If you do not stop call processing on the LSPs, all telephones have service during the time that
the LSPs are controlling calls. Service continues even a problem exists with the upgrade of the
primary controller. If you do not stop call processing on the LSPs, the IP telephones usually
register to the appropriate LSP during the server upgrade. When the LSP passes control back
to the primary controller, IP telephones subsequently reregister with the primary controller.
92 Upgrading, Migrating, and Converting Media Servers and Gateways