W
EB
C
ONFIGURATION
S
OFTWARE
R
EVISED
2018-09-21
T
IME
D
RAWING
N
O
. LP0991-G
2-115
N-Tron
®
Series NT24K
®
Software Manual
Note:
When PTP is disabled, the only information displayed on this page is PTP Mode and Clock ID, because
nothing else applies when PTP is disabled.
PTP General Information
PTP Mode:
The PTP mode of the switch. Options include "Disabled", "Boundary Clock", and "Transparent
Clock". The default is "Disabled". If the PTP protocol is disabled on the switch, all ports behave as Dis-
abled/Pass-Through. Changes to this setting require a reboot of the switch.
Connection Status:
A run-time generated status message showing what Master is connected.
PTP Clock Time:
This only applies to Boundary Clock mode. This displays the date/time of the PTP Clock.
The PTP Clock defaults to the system clock when not synchronized to a PTP Master clock.
Clock ID:
The unique Clock ID of this PTP device. It is constructed automatically based on the switch MAC
address.
Current UTC Valid:
A field in exchanged PTP packets that says whether the UTC Offset field that is also
being sent in the packet should be considered valid. This is a run-time value that is dynamically updated
based on the most recently connected PTP Master.
Current UTC Offset:
A field in exchanged PTP packets that provides the current offset to UTC. This is a
run-time value that is dynamically updated based on the most recently connected PTP Master.
Current Timescale:
A field in exchanged PTP packets that provides the most recently received Timescale
value from the Master. This is a run-time value that is dynamically updated based on the most recently
connected PTP Master. If this value is "PTP", the internal PTP time can be converted to a calendar time
using the Current UTC offset.
Current Announce Interval:
This only applies to Boundary Clock mode. This is the log
2
value that sets
the interval for how often to announce the switch as an eligible PTP Master. The default value of "1" is
every 2 seconds. The current value is dynamically updated by the PTP protocol and may differ from the
setting.
Current Announce Timeout:
This only applies to Boundary Clock mode. This value determines the num-
ber of announce intervals that must elapse without receipt of an announce message before a non-commu-
nicating Master is marked as unavailable. The default value is 3 intervals. The current value is dynamically
updated by the PTP protocol and may differ from the setting.
Current Sync Interval:
This only applies to Boundary Clock mode. This log
2
value determines how often a
sync message will be sent. The default value of "-1" is twice per second. The current value is dynamically
updated by the PTP protocol and may differ from the setting.
Current Delay Request Interval:
This only applies to Boundary Clock mode. This log
2
value determines
how often the switch will request a path delay measurement from its Master. The default value of "0" is
once per second. The current value is dynamically updated by the PTP protocol and may differ from the
setting.
PTP Slave Information
Slave Port:
This only applies to Boundary Clock mode. This is the port that is connected to and inheriting
configuration values from a PTP Master. If no port is acting as a PTP Slave this field will have a value of “N/
A”.
Slave Announce Interval:
This only applies to Boundary Clock mode. This is the log
2
value that sets the
interval for how often to announce the switch as an eligible PTP Master. The default value of "1" is every 2
seconds. The slave value is dynamically updated by the PTP protocol and may differ from the setting.
