Multiplex communications – Diagnostic testing – Determination of communication parameters
Patent
1997-09-30
2000-04-18
Ngo, Ricky
Multiplex communications
Diagnostic testing
Determination of communication parameters
370507, 375356, G01R 3108, H04J 306, H04L 700
Patent
active
060523638
ABSTRACT:
A system and method for causal ordering in a distributed network with a minimum amount of delay. In a distributed network having three interconnected nodes, each having synchronized clocks, the second node sends a message to the first node. Before it sends the message, however, the second node attaches a time stamp t2 to the message. To determine when the first node can provide a causally ordered response, the method first determines a minimum message latency f from the third node to the second node. The method then adds the value of the time stamp t2 to the message latency f to calculate a minimum response time t1. On or after the time t1, the first node can provide the causally ordered response.
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Baldoni, Roberto et al., "Causal Delivery of Messages with Real-time Data in Unreliable Networks," (1996).
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Ngo Ricky
Northern Telecom Limited
Pham Brenda H.
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