This attribute specifies the time interval (in seconds) at which the
FrMux sends Status Enquiry messages to the interface. Exchange of
Status Enquiry and Status Report messages constitutes a polling
cycle, so this attribute may also be interpreted as time interval at
which the FrMux initiates polling cycles. It must be less than
checkPointTimer (t392) configured at the other end of the Frame
Relay interface.
This attribute corresponds to t391 of the ANSI and CCITT
specifications, and nT1 of the Vendor Forum specification.