EXFO FTB-860, User Manual

Page: 198 / 409

1588 PTP Test Setup and Results
186
FTB-860/880
1588 PTP

Message Rate

Announce
determines the transmission interval of the Announce
messages: 1 message/2s (default), 1 message/s , or 8 message/s .

Sync
determines the transmission interval of the Sync messages:
32 (default), 64 , or 128 message/s .

Delay-Request
determines the transmission interval of the Delay
Request messages: 1 , 2 , 4 , 8 , 16 , 32 (default), 64 , or
128 message/s
. The
Delay-Request
message rate is limited by the
Sync rate selection; the Delay-Request message rate is
automatically updated to be smaller than or equal to the
Sync
message rate.

Service Duration

Lease Duration is not configurable and is set to 300 seconds
which determines the Lease Duration used between the 1588 PTP
function and the Grand Master clock.

Renewal Interval
is not configurable and is set to
150
seconds
which determines the interval used by the 1588 PTP function to
initiate the renewal of its lease with the Grand Master clock.