Avaya Aura® Media Server selection algorithm

Last Updated : Feb 21, 2025 |
Prolog information
Avaya Breeze® platform supports a rich algorithm for selecting which Avaya Aura® Media Server to use for each call. The algorithm uses the locations defined in the System Manager routing. You can assign locations as follows:
  • You can assign locations explicitly to a SIP entity such as the Avaya Breeze® platform.
  • You can specify IP address patterns for locations. Avaya Breeze® platform uses the address patterns to match the IP address of endpoints and SIP entities to locations.
The selection algorithm can also include optional rules which Avaya Breeze® platform uses in the following order:
  1. Check the location of the caller
    If the caller's SIP endpoint or SIP entity, such as a trunk gateway, matches an assigned location, Avaya Breeze® platform attempts to assign the Avaya Aura® Media Server that is in the same location.
  2. Check the location of the Avaya Breeze® platform server
    If the Avaya Breeze® platform server handling a call has an assigned location, Avaya Breeze® platform attempts to assign the Avaya Aura® Media Server in the same location.
  3. Select a lightly-loaded Avaya Aura® Media Server from any location.
If none of these rules match, the call fails. New clusters have all the rules enabled by default. To preserve backward compatible behavior, any existing clusters do not have the first rule enabled by default. If required, you can enable the rule after upgrading.
You can select which rules on the Cluster Editor screen displayed when you click New or Edit on the Cluster Administration page. For more information, see Cluster Editor field descriptions in Administering Avaya Breeze® platform.