Hello, friend!
Network Time Protocol (NTP) is an application layer protocol in the TCP/IP protocol suite. NTP is used to synchronize the time between the distributed time server and the client. The network devices that support NTP synchronize the time by exchanging NTP packets such as the network management system and the network accounting system to implement various service applications based on universal time. There are five NTP modes: server/client, peer, broadcast, manycast and multicast. The EA5801 supports all these modes.
For details about how to configure the NTP service, click: NTP Configuration
Thanks!