Time
RM Web L3E
Release
6.0
07/2010
3.2
PTP (IEEE 1588)
85
3.2.4 PTP Version 2 (TC) (MS20/MS30,
PowerMICE)
In strongly cascaded networks in particular, the transparent clock (TC)
introduced in PTP Version 2 provides a noticeable increase in precision.
The combination with the P2P runtime mechanism (simultaneous runtime
measurement at all ports) enables “seamless” reconfiguration.
The following settings enable you to also use the TC for Unicast PTP
messages:
– Selecting the E2E mechanism
– Syntonize disabled
– PTP Management disabled.
You select the PTP version you will use in the Time:PTP:Global dialog.
V1 Hardware
Compatibility
Some devices from other
manufacturers require PTP
messages of specific length.
If the UDP/IPv4 network protocol is
selected and the function is active,
the device extends the PTP
messages.
auto, on, off auto
Asymmetry Correction of the runtime asymmetry
in ns. A runtime measurement value
of x ns corrupted by asymmetrical
transmission values corresponds to
an asymmetry of x·2 ns
Parameter Meaning Possible Values Default Setting
Table 26: Port Dialog Version 2(BC)
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