Latencies and weightings in a domain name service (DNS) system
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United States of America Patent
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Dec 25, 2012
Grant Date -
Jul 12, 2012
app pub date -
Mar 14, 2012
filing date -
Jul 19, 2000
priority date (Note) -
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Abstract
A method for determining metrics of a content delivery and global traffic management network provides service metric probes that determine the service availability and metric measurements of types of services provided by a content delivery machine. Latency probes are also provided for determining the latency of various servers within a network. The latency probe calculates, for example, the latency from its location to a client's location using the round trip time for sending a packet to the client to obtain the latency value for that client. DNS servers use the latency test results, along with traffic weightings, to determine a server to return for a given DNS name.
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