A count based license can be dynamically floated and shared among the SBC in a network licensing mode. It also allows the enforcement of the number of sessions purchased in local and network licensing modes.
The SBC supports three license modes:
Legacy Mode: The Licenses are encoded to a unique SBC instance based on system information to a particular SBC and this is an xml-based SBC license model.
Legacy licensing mode is only supported for hardware platforms of SBC 5xx0 and SBC 7000.
Local Mode: The licenses are fixed to the SBC and cannot be shared by other devices in the network. Licenses are installed on SBC through EMA or a new CLI interface by applying an xml-based license bundle. The xml-based license adopts the new license format, which includes additional data such as purchase order information.
- Network Mode: The licenses are assigned dynamically by an SLS server based on demand as traffic increases. When the traffic decreases, the licenses are returned to the server. These licenses can float between SBCs based on the demand. Licenses are pooled centrally in the SLS server which is co-located with the EMS.
For more information on supported licenses, refer to SBC Core Licenses.
The system supports a countable license in the range of 0-x units:
- In a local license mode, x is the license units purchased by the user and is part of the xml bundle that is applied directly at the SBC. When the local license mode is zero, it indicates that no license is purchased.
- In a network license mode, x is limited by the number of units available at the Site License Server (SLS), the maximum count configured with the license in the required license table or any basic platform restriction. For example, Call Admission Control (CAC) or media profile configuration.