If set to enabled(1), when operstatus up is detected on any
port the agent will clear the rule usage information
associated with that port.
This ability is further scoped to the list of ports defined by
etsysPolicyRuleStatsAutoClearPorts.
This leaf is optional and will have no effect on an agent
which has rule use accounting disabled or does not support
rule use accounting.
By default, the rule use accounting information will not be
modified by operstatus transitions.