H3C SOHO IE4300, Command Reference Manual

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1
Network synchronization commands
Only the IE4300-28P-M and IE4320-28P switches support network synchronization.
Network synchronization is not supported between IRF member devices.
display network-clock source
Use
display network-clock source
to display the states of clock sources.
Syntax
display network-clock source
Views
Any view
Predefined user roles
network-admin
network-operator
Examples
# Display the states of clock sources.
<Sysname> display network-clock source
Port State Priority SSM level Force SSM LPU port
Pos3/1/1 Normal 10 Unknown OFF Yes
Cpos4/1/9 Normal 15 Unknown ON No
Table 1 Command output
Field Description
Port Line clock input port.
State
State of the clock source:
•
Normal —The clock source is operating correctly.
•
Lost —The clock source is not available or is in an
error condition.
•
N/A —PTP is used for time synchronization.
Priority Priority of the clock source.
SSM level
Clock source quality level in the SSM, by descending order of quality:
•
PRC —G.811 primary reference clock.
•
SSU-A —G.812 primary-level SSU.
•
SSU-B —G.812 second-level SSU.
•
SEC —SDH equipment clock.
•
DNU —Do not use for synchronization.
•
Unknown —Unknown quality level.
Force SSM
Method for setting the quality of the clock source:
•
ON —Sets the clock source's quality level to the
user-assigned SSM value.
•
OFF —Extracts the SSM quality level from the timing
signal sent by the clock source.
LPU port Line clock input role of the port: