Safran SecureSync 2400 User Manual page 520

APPENDIX
Advanced tab settings
A b o u t ... P T P
The PTP Card is able to transmit the PTP packets in three transmission modes:
• Multicast Mode
icast IP addresses dedicated to the PTP protocol (224.0.1.129, 224.0.0.107). PTP packets
received by the PTP Clocks are then filtered from the Domain Number, the Port Identity
(Clock Identity + Port Number) of the transmitter, the packet identifier (Sequenced).
When the Master Clock is set in Multicast mode, this module will deny the requests from
the Slaves Clocks to run in Unicast mode. When the Master Clock is set in Unicast mode,
it doesn't transmit any PTP messages until a Slave has been granted to run in Unicast
mode.
• Unicast Mode
mode between two PTP Clocks by means of the unique IP address assigned to each PTP
Clock.
---------------------------------------------
N O T E: The Unicast mode is only implemented for the following PTP packets:
Announce
The Unicast mode is activated at the initiative of the Slaves. Each Slave, which wants to
run in Unicast mode, shall first negotiate Unicast contracts with the Master.
_______________
504
Max Sync Duration: The maximum value of Sync interval granted by the
Master Clock. In seconds. [10000]
Min Announce Interval: The minimum value of the Announce interval gran-
ted by the Master Clock. In packets per second. [128 Per Second
Max Announce Duration: The maximum value of the Announce interval
granted by the Master Clock. In seconds. [10000]
Min Delay_Req Interval: In packets per second. [128 Per Second]
Max Delay_Req Duration: In seconds. [10000]
Max Slaves: The maximum number of slaves the card will serve. [4000]
T r a n s m i s s i o n
: PTP packets are transmitted to all PTP Clocks by means of Mult-
: This mode is enabled by default. This is a Point-to-Point transmission
Sync Follow-Up
, and
M o d e s
Delay_Req Delay_Resp
, and .
SecureSync 2400 User Manual