NTP Question

[Karl]

Why does NTP use UDP instead of TCP?

Is it because UDP packets can be smaller the TCP to speed up delivery?

 

[V-Spec]

Why does NTP use UDP instead of TCP?

Is it because UDP packets can be smaller the TCP to speed up delivery?

NTP is usually multicast on 224.0.1.1 which means that if your running NTP in a network, hosts only need to receive one copy of the information it sends once, it does not need any bidirectional communication or acknowledgments. UDP is fine.

 

[Karl]

Ah okay. Thanks.