Is there difference of Sync between "active to standby" and "standby to active"

If you make changes on an active device, you would sync the changes to the standby device. If you made changes on the standby device, you would sync change to the active device.

However if you make changes on the active and sync from the standby you run the risk of wiping any changes you have just made

Thank you. I think you are very right

Word of caution on this "Active to Standby" and "Standby to Active" is a term used in Version 10 (EoSS very shortly)

Might be worth reading up on the terminology in Version 11 and Traffic/Device groups :)