Configuring Clock Source Attributes for BMC Selection
After multiple T-BCs are configured with the input of BITS signals, clock source attributes for BMC selection can be configured on the T-BCs to allow the T-BCs to participate in BMC selection. The local clocks of T-BCs can also be configured to participate in BMC selection. BMCA can be used to dynamically determine the T-GM. The T-GM provides time signals for the entire CU-106 network. T-BCs use CU-106 to obtain time synchronization information from the T-GM.
Context
Perform the following steps on each router that is connected to a BITS source on the CU-106 network:
Procedure
- Run system-view
The system view is displayed.
- Run ptp clock-source bits1 grandmaster-clockid grandmaster-clockid-value
The grandmaster clock ID is specified for the BITS source.
- clockid-value must be the same as that of the external BITS source. Otherwise, if both the BITS and PTP clock sources are deployed, the computation of the time synchronization path will be affected.
- If the clock ID of the external BITS source is changed due to factors such as device replacement, the value of clockid-value must also be changed accordingly.
- Run ptp clock-source bits1 clock-accuracy clock-accuracy-value
The accuracy value of the clock source is set.
In T-BC mode, the default accuracy value (0xFE) of the local clock source is used.
- Run ptp clock-source bits1 clock-class clock-class-value
The clock class is set for the BITS source.
In T-BC mode, the default clock class is 248. If the clock class of a locked clock is less than 135, the clock class automatically changes to 165 after the clock is out of lock and this clock class cannot be configured.
- Run ptp clock-source local priority2 priority2-value
Priority2 of the local clock source is set.
- Run ptp clock-source bits1 local-priority local-priority-value
The priority of the local clock source is set.
- Run ptp clock-sourcelocal time-source time-source-value
The time source of the local clock source is configured.
- Run commit
The configuration is committed.