Suppose you want to restore the BDCOM OLT configuration from a previously made backup.
Connect via the console or telnet to the device and execute the copy command from the TFTP server:
copy tftp flash 192.168.5.5
Specify the name of the configuration file located on the TFTP server:
Source file name[]?ixnfo.com.cfg
We indicate under what name it should be stored in the BDCOM OLT memory (startup-config must be specified):
Destination file name[startup-config]?startup-config
Reboot the OLT and make sure that the configuration is restored:
reboot
See also my articles:
BDCOM OLT Recovery
Starting a TFTP server in Windows
Installing and Configuring a TFTP Server in Ubuntu
BDCOM GP3600 backup script
Backing up the BDCOM P3310 configuration