System and method to calculate round trip delay for real...

Details System and method to calculate round trip delay for real... System and method to calculate round trip delay for real...

2007-08-14

2007-08-14

Marcelo, Melvin (Department: 2616)

Multiplex communications

Diagnostic testing

Path check

C370S249000, C370S252000

Reexamination Certificate

active

10263783

ABSTRACT:
An apparatus and method calculate a round-trip delay (RTD) between first and second endpoints within a network, where an intermediate point is selected between the first and second endpoints within the network. A network analyzer determines a first data transmission time from the intermediate point to the first endpoint and back to the intermediate point, determines a second data transmission time from the intermediate point to the second endpoint and back to the intermediate point, and adds the first and second data transmission times to determine therefrom the round trip delay between the first and second endpoints within the network.

REFERENCES:
patent: 6212171 (2001-04-01), LaFollette et al.
patent: 7111073 (2006-09-01), Jain et al.
patent: 7123589 (2006-10-01), Dawes et al.
H. Schulzrinne et al. Netw ork Working Group Request for Comments: 1889 Category: Standards Track, Audio Video Transport Working Group, Jan. 1996, A Transport Protocol for Real-Time Applications, pp. 1-75.

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