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5.2 General Timing Management
5.2.1.6
WR Slave @ wr0>wr1 / PTP Fan-Out
Web GUI selection: BC: wr0->wr1|PTP
This preset targets critical devices used as last hop with PTP. The primary timing
source is provided using WR through interface wr0. It can failover to a secondary
timing source provided using WR through interface wr1.
5.2.1.7
Manual Free-Running
Web GUI selection: FR: Manual
This preset is useful for laboratory and test networks where each node is dis-
ciplined by the same free-running oscillator. Selecting this preset will also silence
the possible warnings in devices of the down-layers and will preclude the use of
the holdover as it cannot learn from a free-running oscillator.
5.2.1.8
Custom
The Custom Preset has been designed to allow unique selections for timing
source and fanout settings in order to meet any kind of user needs. If the user
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The primary timing source is provided using WR through interface wr0. It
can failover to a secondary timing source provided using WR through inter-
face wr1.
The ethernet ports (i.e., eth0 & eth1) are configured as PTP masters.
Note:
PTP on copper ports (eth0 & eth1): In v3.x, PTP will be activ-
ated on copper ports only while using "PTP Fanout" presets or by
manually enabling while forcing the "Custom" preset. In default mode
it is disabled.
The primary timing source is the free running internal oscillator in the
device.
All SFP ports (i.e., wr0 & wr1) are configured as WR masters.
The device announces itself as a Free-running GM using arbitrary timescale
(ARB).
Caution:
It is highly recommended to avoid integrating a Manual
Free-Running device to a timing network in production as in some
corner cases the BMCA/FOCA algorithms might select this timing
source when it is not the expected choice.
CHAPTER
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5
WR-Z16 User Manual Rev. v5.0
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