Method for determining the drop rate, the transit delay and...

Details Method for determining the drop rate, the transit delay and... Method for determining the drop rate, the transit delay and...

2001-11-20

2009-06-16

Chan, Wing (Department: 2616)

Multiplex communications

Diagnostic testing

Determination of communication parameters

C370S253000

Reissue Patent

active

RE040744

ABSTRACT:
A method of analyzing a communication network that determines a mean drop rate in a device x by polling each device from a network management computer (NMC) which is in communication with the network, and processing signals in the NMC to determine a drop rate D(x), in accordance with:in-line-formulae description="In-line Formulae" end="lead"?D(x)=((L+(x)−L−(x))/2,in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?and L(x)=1−A(x)in-line-formulae description="In-line Formulae" end="tail"?whereA(x): the fraction of poll requests from the NMC to device x for which the NMC receives replies (measured over the last M sampling periods), (wherein x must not be broken),D(x): the mean frame drop rate in device x,L(c): NMC's perception of the loss rate to device x and back,L−(x): the NMC's perception of the mean value of L(z) for all devices z connected to device x, closer to the NMC than device x and which are not broken, andL+(x): the NMC's perception of the mean value of L(z) for all devices z connected to device x, further away from the NMC than device x and which are not broken.

REFERENCES:
patent: 5559955 (1996-09-01), Dev et al.
patent: 5668800 (1997-09-01), Stevenson
patent: 5933416 (1999-08-01), Schenkel et al.
patent: 93/10495 (1993-01-01), None
N. Dawes et al., Network Diagnosis by Reasoning in Uncertain Nested Evidence Spaces, IEEE Transaction on Communication, vol. 43, N. 2/3/4, pp. 466-476, Apr. 1995.
“Performance evaluation of PC routers using a single-server multi-queue system with a reflection technique”, A. Jirachiefpattana et al., Computer Communications, vol. 1, No. 20, pp. 1-10, Jan. 1997.
“Structure and use of signalling in B-ISDNs”, R.O. Onvural et al, Computer Networks and ISDN Systems, vol. 3, pp. 307-323, 1996.
“Fuzzy Routing”, W. Arnold et al., Fuzzy Sets and Systems, vol. 2, pp. 131-153; Jan. 23, 1997.
“Dyanmic QoS Control of Multimedia Applications Based on RTP”, Busse et al. vol. 1, pp. 49-58, 1966.

Affiliated with

Also associated with

Rating

Method for determining the drop rate, the transit delay and... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for determining the drop rate, the transit delay and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for determining the drop rate, the transit delay and... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4052568