In the per host accounting mode of operation the accounting message stream (START/INTERIM-UPDATE/STOP) is generated per host.
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 host accounting model:
A RADIUS accounting START message is sent each time a host is created in the system.
Whenever a host disconnects, a RADIUS accounting STOP message is sent for that host.
The accounting messages (START, INTERIM-UPDATE, STOP) carry the acct-multi-session-id attribute denoting the queue instance or session with which the host is associated (see Table: Accounting modes of operation ).
The counters are collected from the queues and policers instantiated through the queue instance (SLA profile instance). If multiple hosts share the same queue instance, the counters are aggregated. In other words, counters per individual hosts cannot be extracted from the aggregated count.