NTP application
An administrator is unable to keep time synchronized among all devices within a network by changing the system clock on each station, because this is a huge work and does not guarantee clock precision. NTP, however, allows quick clock synchronization within the entire network and ensures high clock precision.
NTP is used when all devices within the network must keep consistent time. For example:
In analyzing log and debugging information collected from different devices in network management, time must be used as a reference basis.
All devices must use the same reference clock in a charging system.
To implement certain functions, such as a scheduled restart of all devices within the network, all devices must keep consistent time.
If multiple systems process a complex event in cooperation, these systems must use the same reference clock to ensure the correct execution sequence.
For incremental backup between a backup server and clients, timekeeping must be synchronized between the backup server and all clients.