Hi friend.
I don't quite understand what you mean by "Internet uptime". Generally, The OLT does not have the function of querying and configuring "Internet uptime", but can query and display the running time of the system.
You could run the display sysuptime command.
This command is used to query the uptime of the system. After the command is executed successfully, you can query the uptime of the system.
Looking forward to your more detailed explanation, thank you!