Utility based filtering mechanism for PMTU probing

Details Utility based filtering mechanism for PMTU probing Utility based filtering mechanism for PMTU probing

2007-12-04

2007-12-04

Pham, Chi (Department: 2616)

Multiplex communications

Diagnostic testing

Determination of communication parameters

C370S233000, C370S389000

Reexamination Certificate

active

10408295

ABSTRACT:
A method and mechanism for determining when to transmit a probe packet to detect increases in path maximum transmission unit (PMTU) in a network having a host and a target interconnected by the network. Calculate a utility variable corresponding to a number of packets to be transmitted from the host to the target which are greater than a predetermined amount of a known PMTU for the target. When the utility variable is greater than a predetermined utility threshold, sending instructions to the host to send a probe packet to detect increases in PMTU for the target. Storing the previous state of the internet path with respect to PMTU in a variable PPMTU and tracking it during decreases so that a restoration of the PMTU can be verified by sending probes. PMTU is treated as a resource which is either fully or partially used by an application.

REFERENCES:
patent: 5425023 (1995-06-01), Haraguchi et al.
patent: 5892753 (1999-04-01), Badt et al.
patent: 5959974 (1999-09-01), Badt et al.
patent: 6212190 (2001-04-01), Mulligan
patent: 7103674 (2006-09-01), Brown et al.
patent: 2003/0048793 (2003-03-01), Pochon et al.
patent: 2003/0076850 (2003-04-01), Jason, Jr.
patent: 2003/0185208 (2003-10-01), Lee et al.
patent: 2003/0187975 (2003-10-01), Brown et al.
patent: 2004/0090922 (2004-05-01), Jason et al.
patent: 2005/0117577 (2005-06-01), Fichou et al.
McCann, Deering & Mogul, Network Working Group, RFC 1981, Path MTU Discovery for IP version 6, Aug. 1996, pp. 1-15.
Mogul & Deering, Network Working Group, RFC 1191, Path MTU Discovery, Nov. 1990, pp. 1-19.

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