Installation & Operation Manual 814 Document # LTRT-92224
Mediant 8000
46.3.2 Preparing the IP Network
To perform Online Software Upgrade, the IP network must be configured to provide a
bandwidth rate of at least 2 Mbps between the EMS server and the Media Gateway
chassis (SC boards).
The IP network speed mainly affects the time of the Media Gateway Software package
transfer between the EMS client, the EMS server and the SC boards. Use the
following formula to estimate the time of the Media Gateway Software package
transfer by the available IP network bandwidth:
where B is available bandwidth in Mbps.
For example, for a bandwidth rate of 2 Mbps, the Media Gateway Software package
transfer takes approximately 13 minutes. Similarly, for a bandwidth rate or 10 Mbps,
the transfer takes approximately 2.5 minutes.
46.3.3 Verifying that the Online Software Upgrade is Supported
Make sure that an upgrade from the specific Media Gateway version is supported.
AudioCodes officially supports upgrade to Version 6.6 from the last two major software
versions (Version 6.2) only.
For additional information and clarifications contact Tech Support.
46.3.4 Planning the Maintenance Time Period
To minimize the effect of any problem that may occur during Online Software
Upgrade, it is recommended to perform the upgrade during the upgrade maintenance
time period when low call traffic is known to occur.
It is important to properly estimate the time of the Online Software Upgrade and plan
the upgrade maintenance time period accordingly, so that there is enough time for
both the upgrade itself and for the appropriate acceptance tests of the new software
version.
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