In the per queue-instance accounting mode of operation, the accounting message stream (START/INTERIM-UPDATE/STOP) is generated per queue-instance (per SLA profile instance for non-HSQ cards).
An accounting message stream refers to a collection of accounting messages (START/INTERIM-UPDATE/STOP) sharing the same acct-session-id.
The following are the properties of the per queue-instance accounting model:
A RADIUS accounting start message is sent when the queue instance (SLA profile instance) is created. It contains the IP address attribute of the host that caused the queue instance (SLA profile instance) to be created.
Additional hosts may bind to the queue instance (SLA profile instance) at any time, but no additional accounting messages are sent during these events.
If the original host disconnects then future accounting messages use an IP address of one of the remaining hosts.
When the final host associated with a queue instance (SLA profile instance) disconnects an Accounting Stop message is sent.