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What’s the difference between NTP broadcast and NTP client/server mode?

April 26, 2017broadcast client difference mode NTP server

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What’s the difference between NTP broadcast and NTP client/server mode?

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These are two separate mode in talking to the server. Actually, in the broadcast mode, the clients listen. In client/server mode, the clients poll the server. You can use NTP broadcast if there is no WAN link is involved because of its speed. If you go across a WAN link use the client/server mode (by pollling) is more preferable. Broadcast mode is designed for a LAN because otherwise many clients may need to poll the server and create a lot of packets on the network. NTP multicast is not yet available in NTPv3, forthcoming in NTPv4.