+
+- ``stats_update_period_ms`` [long] (default **1000**)
+
+ Adjust period in milliseconds to update port hardware statistics.
+ The accepted range is 0 to 65535. The value of **0** may be used
+ to disable periodic statistics update. One should note that it's
+ only possible to set an arbitrary value on SFN8xxx provided that
+ firmware version is 6.2.1.1033 or higher, otherwise any positive
+ value will select a fixed update period of **1000** milliseconds