This attribute displays whether the Path Remote Failure Indication
(P-RFI) alarm state has been entered. An P-RFI alarm state is
entered when Path Remote Defect Indicator (P-RDI) defects have
been observed and accumulated for a period of 2.5 seconds +/- 0.5
seconds. The P-RDI defect is the occurrence of the P-RDI signal in
five contiguous valid STS or STM frames (bit 5 of the G1 byte set
to 1). If the P-RDI defects are intermittently occurring, the P-RDI
defect accumulator is decremented at a rate of 1/10 of the
incrementing rate (alarm integration ratio of 1/10)with all
measurements based on a 200 ms polling cycle.
The Path component goes into an operational state of disabled until
the P-RFI alarm condition is cleared. The condition is cleared after
no P-RDI defect has been detected for 10 seconds +/- 0.5 seconds.
The rxRfiAlarm attribute is always set to off when the Path
component has been locked and left offline by the operator or when
the Path component has been suspended since the parent component
has been locked.