An RLINK is considered inactive whenever the Primary cannot send data to the Secondary for any reason, such as:
pausecommand by an administrator.
The data to be sent on an inactive RLINK is buffered in the SRL. If the RLINK remains inactive for an extended period, the SRL may not be able to buffer new writes; even if it can, the Secondary becomes increasingly out-of-date. So it is important that the SRL is large enough to accommodate most of the inactive periods. To help control the behavior of an inactive RLINK, SRL overflow protection may be used. For details, see Setting the SRL overflow protection.