PTP Version 1, Global Settings

Tab. Function IEEE 1588/PTPv1

Parameters

Meaning

Possible values

Default setting

Sync Interval

Period for sending synchronization messages.
Entered in seconds.

In order for changes to take effect, click “Reinitialize”.

- sec-1
- sec-2
- sec-8
- sec-16
- sec-64

sec-2

Subdomain Name

Name of the PTP subdomain to which the local clock belongs.

In order for changes to take effect, click “Reinitialize”.

1 to 16 ASCII characters, hex value 0x21 (!) through 0x7e (~)

_DFLT

Preferred Master

Defines the local clock as the preferred master. If PTP does not find another preferred master, then the local clock is used as the grandmaster clock. If PTP finds other preferred masters, then PTP determines which of the preferred masters is used as the grandmaster clock.

true

false

false


Tab. Status IEEE 1588/PTPv1

Parameters

Meaning

Possible values

Default setting

Offset to Master [ns]

Deviation of the local clock from the reference clock in nanoseconds.

Delay to Master [ns]

Single signal runtime between the local device and reference clock in nanoseconds.

Grandmaster UUID

MAC address of the grandmaster clock (Unique Universal Identifier).

Parent UUID

MAC address of the master clock with which the local time is directly synchronized.

Clock Stratum

Qualification of the local clock.

Clock Identifier

Clock properties (e.g. accuracy, epoch, etc.).


Note: PTPv1 uses as the device UUID 48 bits which are identical to the MAC address of the particular device.