METHOD FOR SYNCHRONIZATION IN A LOCAL AREA NETWORK INCLUDING A STORE-AND-FORWARD DEVICE
摘要
The present invention relates to a method for identifying inaccurate time measurements in a local area network. The local area network comprises a sending device (2), such as a time client, a destination device (3), such as a timeserver, and a switching device and/or a store-and-forward device (6). A time request packet (4) is rejected if it arrives at the time client or timeserver within a given or calculated minimum distance from the preceding network packet. The time request packet (4) is also rejected if it falls outside a set of calculated error limits based on a set of estimates. Those estimates are kept in the time client memory and updated according to a given set of rules.
申请公布号
WO02054661(A1)
申请公布日期
2002.07.11
申请号
WO2001NO00515
申请日期
2001.12.28
申请人
ABB RESEARCH LTD.;HOLMEIDE, OEYVIND;SKEIE, TOR;APNESETH, CHRISTOFFER;JOHANNESSEN, SVEIN;LOEKSTAD, TROND