It should be caused by the following reason - NTP is not set on all of the cameras and causes camera time to be different from each others.
Resolution:
1. Log in to the OMU portal as the admin user.
2. Choose Maintenance > Unified Configuration.
3. Select the server for which you want to implement the NTP time synchronization, set Module name to OMU and Parameter type to Entire network NTP config, and click Search.
4. In the search results, click Edit in the row where Parameter Name is NTP Domain and set Value to 1.
5. Click Save to enable the network-wide NTP function.
After the network-wide NTP function has been enabled, the server will automatically time-synchronize with its upper-level NE.
Enabling Camera NTP Time Synchronization
The camera NTP time synchronization function is disabled for a server by default. You need to enable the camera NTP time synchronization function for the server that connects to cameras.
After the camera NTP time synchronization function has been configured on a server, the cameras will automatically time-synchronize with the server. Therefore, do not set the IP addresses of other clock sources on the camera web pages. Otherwise, the cameras will time-synchronize with the latter configured clock sources.
1. Log in to the OMU portal as the admin user.
2. Choose Maintenance > Unified Configuration.
3. Select the server to which the cameras need to connect, set Module name to SCU and Parameter type to System property and click Search.
Configuring camera NTP time synchronization
4. In the search results, click Edit in the row where Parameter Name is NTPIPC and set the Value to 1.
5. Click Save to enable the camera NTP time synchronization function.
After the camera NTP time synchronization function has been enabled, cameras, after being connected to the server, will automatically time-synchronize with the server.
It should be caused by the following reason - NTP is not set on all of the cameras and causes camera time to be different from each others.
Resolution:
1. Log in to the OMU portal as the admin user.
2. Choose Maintenance > Unified Configuration.
3. Select the server for which you want to implement the NTP time synchronization, set Module name to OMU and Parameter type to Entire network NTP config, and click Search.
4. In the search results, click Edit in the row where Parameter Name is NTP Domain and set Value to 1.
5. Click Save to enable the network-wide NTP function.
After the network-wide NTP function has been enabled, the server will automatically time-synchronize with its upper-level NE.
Enabling Camera NTP Time Synchronization
The camera NTP time synchronization function is disabled for a server by default. You need to enable the camera NTP time synchronization function for the server that connects to cameras.
After the camera NTP time synchronization function has been configured on a server, the cameras will automatically time-synchronize with the server. Therefore, do not set the IP addresses of other clock sources on the camera web pages. Otherwise, the cameras will time-synchronize with the latter configured clock sources.
1. Log in to the OMU portal as the admin user.
2. Choose Maintenance > Unified Configuration.
3. Select the server to which the cameras need to connect, set Module name to SCU and Parameter type to System property and click Search.
Configuring camera NTP time synchronization
4. In the search results, click Edit in the row where Parameter Name is NTPIPC and set the Value to 1.
5. Click Save to enable the camera NTP time synchronization function.
After the camera NTP time synchronization function has been enabled, cameras, after being connected to the server, will automatically time-synchronize with the server.
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