Assertion: protocol | /r/AtLocation | terms of a client-server model
Facets:
value: usually
type: TEMPORAL
Source sentences:
text: The protocol is usually described in terms of a client-server model, but can as easily be used in peer-to-peer relationships where both peers consider the other to be a potential time source.:20 Implementations send and receive timestamps using the User Datagram Protocol (UDP) on port number 123.