This read-write object specifies, in kilobits per second, a guaranteed minimum bandwidth to apply per individual session under this metering class, rather than only to the aggregate of all sessions, with zero meaning no per-session guarantee is configured and aggregate metering applies instead. An admin sets this for policy rules meant to guarantee bandwidth to each individual flow, such as one per user session, rather than sharing a single pool. For example, an admin wanting every individual VoIP call to get a guaranteed minimum bandwidth slice, rather than all calls sharing one aggregate limit, would configure this per-session rate.