Method for determining metrics of a content delivery and...

Details Method for determining metrics of a content delivery and... Method for determining metrics of a content delivery and...

2011-03-22

2011-03-22

Jean, Frantz B (Department: 2454)

Electrical computers and digital processing systems: multicomput

Computer-to-computer protocol implementing

Computer-to-computer data transfer regulating

C370S229000

Reexamination Certificate

active

07912978

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. Service metric probes consult a configuration file containing each DNS name in its area and the set of services. Each server in the network has a metric test associated with each service supported by the server which the service metric probes periodically performs metric tests on and records the metric test results which are periodically sent to all of the DNS servers in the network. DNS servers use the test result updates to determine the best server to return for a given DNS name. The latency probe calculates 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. The latency probe updates the DNS servers with the clients' latency data. The DNS server uses the latency test data updates to determine the closest server to a client.

REFERENCES:
patent: 6792575 (2004-09-01), Samaniego et al.
patent: 6829654 (2004-12-01), Jungck
patent: 7114008 (2006-09-01), Jungck et al.
patent: 7424737 (2008-09-01), Wesinger et al.
patent: 7523181 (2009-04-01), Swildens et al.
patent: 2002/0073199 (2002-06-01), Levine et al.

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