Main tab settings
Domain Number: Sets the current PTP Domain Number, as defined in IEEE Std 1588-
2008 Section 7.1
Clock Mode: PTP has two ways to transmit the initial T1 timestamp of the Sync packet
transmission from the Master to the Slave:
One-Step Master: The Sync packet is timestamped, then the timestamp is inserted
into the Sync packet in real-time, as it is transmitted.
Two-Step Master: The Sync packet is timestamped, but the timestamp value in the
Sync packet is ignored. The actual T1 value is transmitted in a "Follow-Up" packet
after the Sync packet.
Note: PTP Masters must select one mode or the other to operate in.
The default mode is one-step.
Enable DHCP: This is a checkbox to enable or disable the delivery of IP addresses from
a DHCP Server. The default setting is enabled (the box is checked).
Static IP Address: When a DHCP server is not requested or is requested but not avail
able, the PTP Module will use this IP address. In the format “#.#.#.#” with no leading zer
oes or spaces, where each ‘#’ is a decimal integer from the range [0,255].
Network Mask: When a DHCP server is not requested or is requested but not available,
the PTP Module will use this Network Mask. In the format “#.#.#.#” with no leading zer
oes or spaces, where each ‘#’ is a decimal integer from the range [0,255].
Default Gateway: When a DHCP server is not requested or is requested but not avail
able, the PTP Module will use this Default Gateway. In the format “#.#.#.#” with no lead
ing zeroes or spaces, where each ‘#’ is a decimal integer from the range [0,255].
Contract tab settings
Note: The settings under this tab only apply to Unicast mode.
[Default settings in parenthesis]
Min Sync Interval: The minimum value of Sync interval granted by the Master Clock. In
packets per second. [128 Per Second]
Max Sync Duration: The maximum value of Sync interval granted by the Master Clock.
In seconds. [10000]
368 NetClock User Reference Guide
APPENDIX
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