This object reflects the minimum send window size this VPDN session's flow control has settled to, and it is not meaningful when the session's sequencing state is 'none'. Administrators can use it to judge how aggressively the session throttled itself under adverse conditions, since a very low minimum compared with the initial remote window suggests the tunnel experienced sustained congestion or loss. For example, a minimum window size of one on an otherwise long-lived L2TP session indicates the flow control repeatedly backed off to the smallest possible window.