Globally Enabling CU-106
To ensure CU-106 for time synchronization, enable CU-106 globally in the system view and configure basic information on a device, such as the device type (T-BC or T-TC), domain value, and virtual clock ID.
Procedure
- Run system-view
- Run ptp enable
PTP is enabled on the device.
If the device hardware supports ultra-high-precision timestamping, you can run the ptp uhpc enable command to improve the precision of time synchronization. To view the capabilities supported by the corresponding interface, run the display ptp interface { interface-name | interface-type interface-number } command.
- Run ptp profile cu-106 enable
CU-106 is enabled on the device.
- Run ptp device-type t-bc
The device type is set to T-BC or T-TC.
- (Optional) Run ptp domain domain-value
The domain where the device resides is configured.
All the T-BCs that use CU-106 to perform time synchronization must reside in the same clock domain.
- (Optional) On the T-BC, run ptp source-switch ptsf enable
The packet timing signal fail (PTSF)-triggered source switching function is enabled.
After this function is enabled, the device automatically switches to another valid time source if the current time source has an offset change of greater than 1.1 µs for three consecutive seconds or the signals fail due to a loss of Sync packets. After the time source fault is rectified, run the ptp source-switch ptsf recover command in the interface view to restore the current time source. If you want to automatically restore the time source after a certain period of time, run the ptp ptsf auto-recovery-time command to configure the PTSF auto-recovery time. By default, the PTSF auto-recovery time is 0 minute, that is, the function is disabled.
- (Optional) Run ptp virtual-clock-id clock-id-value
A virtual clock ID is configured.
- (Optional) Configure automatic measurement of fiber asymmetry on the T-BC.
- Run commit
The configuration is committed.