Specifying An Ssm Quality Level For A Clock Source; Controlling The Use Of Ssm In Automatic Reference Selection - H3C SR6600-X Configuration Manual

To configure the method to set the SSM quality level of a clock source:
Step
1. Enter system view.
2. Configure the method
to set the SSM quality
level of a clock
source.

Specifying an SSM quality level for a clock source

The SSM quality level you specify for a clock source takes effect only when manual SSM quality level
assignment is enabled.
To specify an SSM quality level for a clock source:
Step
1. Enter system view.
2. Assign an SSM
quality level to a
clock source.
3. (Optional.) Verify
that the
configuration is
effective.

Controlling the use of SSM in automatic reference selection

You can control the contribution of the SSM quality level to automatic reference selection.
Command
system-view
•
In standalone mode:
network-clock source { bits0 | bits1 |
lpuport port-type port-number | ptp }
forcessm { on | off }
•
In IRF mode:
For BITS and PTP:
network-clock chassis chassis-number
source { bits0 | bits1 | ptp } forcessm
{ on | off }
For a link clock input port:
network-clock source lpuport
port-type port-number forcessm { on |
off }
Command
system-view
•
In standalone mode:
network-clock source { bits0 | bits1 | ptp |
lpuport port-type port-number } ssm { dnu | prc |
sec | ssua | ssub | unknown }
•
In IRF mode:
network-clock chassis chassis-number source
{ bits0 | bits1 | ptp } ssm { dnu | prc | sec |
ssua | ssub | unknown }
network-clock source lpuport port-type
port-number ssm { dnu | prc | sec | ssua |
ssub | unknown }
display network-clock source
147
Remarks
N/A
By default, the quality level of a
clock source is the user-defined
value. The network clock monitoring
module does not extract the quality
level from the SSM sent by the clock
source.
Keywords for the SSM control:
•
on—Uses the SSM quality level
manually assigned.
•
off—Extracts the SSM quality
level from the received timing
signal.
Remarks
N/A
By default, all clock sources
use the unknown SSM
quality level.
DNU clock sources are
excluded from automatic
reference selection.
It takes time for the SSM
quality level change to take
effect. To verify the
effectiveness of the change,
use the display
network-clock source
command or check the log.