EXFO FTB-800 Series for FTB-1 - Manual (Page 107)

Test Setup - Test Configurator, Timer, and System
NetBlazer 97
1588 PTP

Negotiation Status is displayed during the Unicast negotiation process
which is initiated when either the test is started or the Connect button
is activated. See Negotiation Status on page 340 for more information.

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.