Mills, D., "Experiments in Network Clock Synchronization", RFC957, M/A-COM Linkabit, September 1985.  Home/Search   Document Not in Database   Summary   Related Articles   Check

.... from real time and thus can drift apart by 1 second every 10 days; clocks based on power line frequency can drift considerably more than this when used as a time base, the power grid in the Northeastern United States typically drifts 4 to 6 seconds from real time over the course of an evening [Mills 85] Keeping clocks in a distributed system synchronized without appealing to a single, centralized, time service requires that clock values be exchanged and adjusted periodically. If failures can result in faulty processors exhibiting arbitrary behavior, then the protocol has the additional burden ....

Mills, D.L. Experiments in network clock synchronization. ARPANet RFC957, Sept 1985.

.... from real time and thus can drift apart by 1 second every 10 days; clocks based on power line frequency can drift considerably more than this when used as a time base, the power grid in the Northeastern United States typically drifts 4 to 6 seconds from real time over the course of an evening [Mills 85] Keeping clocks in a distributed system synchronized without appealing to a single, centralized, time service requires that clock values be exchanged and clocks periodically adjusted. If failures can result in faulty processors exhibiting arbitrary behavior, then the protocol has the additional ....

Mills, D.L. Experiments in network clock synchronization. ARPANet RFC957, Sept 1985.

....a small database. Note that the remailer measures time with its clock. If the clocks of Alice and a remailer are unsynchronized by more than Delta seconds, all messages sent by her will be rejected. The Internet community has defined protocols that allow network hosts to synchronize their clocks [19, 20, 21]. Although these protocols are highly useful, running any time protocol between participating hosts would imply that they would have to know about each other. This constraint alone can seriously impact system complexity. Time stamps are introduced merely to keep the replay database small. Thus, ....

D. L. Mills, "Experiments in network clock synchronization," RFC 957, September 1985.

....be integrated seamlessly for those applications which required high precision. Second, we encountered a problem with the lack of resolution stability in Mach 3.0 s representation of the host time. In order to support synchronized time in a distributed environment while still preserving monotonicity[12], Mach 3.0 provides the host adjust time( interface. This interface allows the host time to be skewed at resolutions under one scheduling clock tick. Consequently, the time between two scheduling clock ticks is not always measured as such. The solution we reached to these problems was to create ....

D. Mills. Experiments in Network Clock Synchronization. DARPA Network Working Group Report RFC-957, August 1985.

No context found.

Mills, D., "Experiments in Network Clock Synchronization", RFC957, M/A-COM Linkabit, September 1985.

No context found.

Mills, D.L. Experiments in Network Clock Synchronization. DARPA Network Working Group Report RFC-957, M/A-COM Linkabit, September 1985.

No context found.

Mills, D.L. Experiments in Network Clock Synchronization. DARPA Network Working Group Report RFC-957, M/A-COM Linkabit, August 1985.

....message orders are unimportant and that reliable delivery is not required. Obviously, the accuracies achievable depend upon the statistical properties of the outbound and inbound data paths. Further analysis and experimental results bearing on this issue can be found below and in [5] 19] and [20]. As shown in Figure 2, the computed delays and offsets are processed in the data filters to reduce incidental timing noise and the most accurate and reliable subset determined by the peer selection algorithm. The resulting offsets of this subset are first combined on a weighted average basis and ....

Mills, D.L. Experiments in network clock synchronization. DARPA Network Working Group Report RFC-957, M/A-COM Linkabit, September 1985.

No context found.

D. L. Mills, "Experiments in network clock synchronization, " RFC 957, September 1985.

Online articles have much greater impact   More about CiteSeer.IST   Add search form to your site   Submit documents   Feedback  

CiteSeer.IST - Copyright Penn State and NEC