Hirschmann RS20 Reference Manual page 95

Time
Parameters Meaning
P2P Runtime Interval for peer-to-peer runtime
Measuring measurements at this port.
Interval Prerequisite:
You have selected the P2P runtime
measuring mechanism on the
device itself and on the PTP device
connected.
Network Transport protocol for PTP
Protocol messages.
Announce Message interval for PTP topology
Interval discovery (selection of the reference
clock).
Select the same value for all devices
within a PTP domain.
Announce Announce interval timeout for PTP
Timeout topology discovery in number of
announce intervals.
The standard settings of announce
interval = 2 (2 per second) and
announce timeout = 3 result in a
timeout of 3 x 2 seconds = 6
seconds.
Select the same value for all devices
within a PTP domain.
E2E Runtime Displays in seconds the interval for
Measuring E2E (end-to-end) runtime
Interval measurements at this port. This is a
device variable and is assigned to
ports with PTP slave status by the
master connected. If the port itself is
the master, then the device assigns
the port the value 8 (state on
delivery).
V1 Hardware Some devices from other
Compatibility 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.
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
Table 51: Port Dialog Version 2(BC)
RM GUI L2E
Release 8.0 05/2013
3.3 PTP (IEEE 1588)
Possible values
802.3 Ethernet,
UDP/IPv4
1, 2, 4, 8, 16
2-10
auto, on, off
Default setting
UDP/IPv4
2
3
8
auto
95