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OwnerSvein Johannessen, Tor Skeie +1inventors
InventorsSvein Johannessen, Tor Skeie, Trond Lokstad
Estimating the term…
A method for improved Network Time Protocol time synchronization in a computer network (1) where the computer network comprises a time client (2) and a timeserver (3). To eliminate network access errors at the client side, the actual time of leaving is stored in the time client (2) as a special time stamp (T11) and later substituted for T1 in the calculations. To eliminate network access errors at the server side, the time request packet is duplicated and returned twice, the second time containing the time stamp when the first packet left the server (T31). To eliminate network transversal jitter when using a switched network, a packet with a multicast is used and the time stamp (T11) is taken when the time request packet is reflected back from the switch and (T31) is taken when the reply packet is reflected back from the switch.
A method for Network Time Protocol time synchronization in a computer network (1), the computer network comprising a time client (2) and a timeserver (3), the method comprising the steps of
A Method according to any of the preceding claims, characterized by time-stamping the fourth time stamp (T11) or the fifth time stamp (T31), either in a network transmit interrupt or by using a dedicated hardware timer.
Dependencies are inferred from the claim text.