US 7,031,895 B1Granted

Apparatus and method of generating network simulation model, and storage medium storing program for realizing the method

AssigneeFujitsu Limited

InventorsEiichi Takahashi, Ken Yokoyama, Naohiro Tamura

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Abstract

Upon receipt of an end point list, a model setting unit requests the measurement/information collection unit to search a path. The model setting unit receives a path appliance list from the measurement/information collection unit, and generates the configuration of a simulation model of a network. The model setting unit selects an appropriate model for each component of the configuration of the simulation model. Then, the model setting unit sets the parameter value of the model based on the measurement result and the collected information received from the measurement/information collection unit, and automatically generates the simulation model of the network.

Claims38

Dependent claims

A network simulation model generation apparatus, comprising:

a model configuration determination unit determining a configuration of a simulation model of a network by inputting information about at least two end points in the network, and inputting information about an appliance in a path in the network connecting the end points;
a model setting unit generating a simulation model of the network by selecting an appropriate model for each component of the simulation model determined by said model configuration determination unit, and inputting necessary data for setting a parameter value of each model;
a path detection unit detecting an appliance in a path of the network connecting the end points upon receipt of a request from said model configuration determination unit, and returning appliance information to said model configuration determination unit;
and
a measurement/information collection unit obtaining information for acquisition of requested data from the network upon receipt of a request from said model setting unit, obtaining the requested data according to the obtained information, and returning it to said model setting unit, wherein
when said requested data of a model can not be measured, said model setting unit replaces the model with another model which does not require said requested data, and requests the measurement/information collection unit to obtain measured data for the other model, and said model setting unit determines whether the parameter value of the model can be predicted using the measured data of the other model, and
when predictable, the predicted value is set as the parameter value of the model, and when it is not predictable, a predetermined set value is set as the parameter value of the model, and
when the parameter value of the model is set, the measurement/information collection unit conducts a test of the parameter value of the model to determine a reliability of the parameter value of the model.

5 more elements

A method of generating a simulation model of a network, comprising:

(a) inputting information about at least two end points in a network, and inputting information about an appliance in a path in the network connecting the end points;
(b) detecting an appliance in a path in the network connecting the end points, and obtaining appliance information;
(c) determining a configuration of a simulation model of the network from the appliance information;
(d) selecting an appropriate model for each component of the determined simulation model;
(e) generating a simulation model of the network by requesting and obtaining necessary data for setting a parameter value of the selected model from the network, wherein
when said requested data of a model can not be measured, replacing the model with another model which does not require said requested data, requesting measured data for the other model, and determining whether the parameter value of the selected model can be predicted using the measured data of the other model,
when predictable, setting the predicted value as the parameter value of the selected model, and
when it is not predictable, setting a predetermined set value as the parameter value of the selected model, and conducting a test of the parameter value of the selected model to determine a reliability of the parameter value of the selected model.

5 more elements

A method of generating a simulation model of a network, comprising:

(a) dividing the network into a plurality of subnetworks;
(b1) inputting information about at least two end points in a network, and inputting information about an appliance in a path in the network connecting the end points;
(b2) detecting an appliance in a path in the network connecting the end points, and obtaining appliance information;
(b3) determining a configuration of a simulation model of the network from the appliance information;
(b4) selecting an appropriate model for each component of the determined simulation model;
(b5) generating a simulation model of the network by requesting and obtaining necessary data for setting a parameter value of the selected model from the network;
and
(c) managing a simulation model, generated in each subnetwork;
wherein
when said requested data of a model which can not be measured, replacing the model with another model which does not require said requested data, requesting measured data for the other model, and determining whether the parameter value of the selected model can be predicted using the measured data of the other model,
when predictable, setting the predicted value as the parameter value of the selected model, and
when it is not predictable, setting a predetermined set value as the parameter value of the selected model, and conducting a test of the parameter value of the selected model to determine a reliability of the parameter value of the selected model.

9 more elements

A computer program product embodied on a computer-readable medium and comprising code that, when executed causes a computer to perform the following:

(a) inputting information about at least two end points in a network, and inputting information about an appliance in a path in the network connecting the end points;
(b) detecting an appliance in a path in the network connecting the end points, and obtaining appliance information;
(c) determining a configuration of a simulation model of the network from the appliance information;
(d) selecting an appropriate model for each component of the determined simulation model;
(e) generating a simulation model of the network by requesting and obtaining necessary data for setting a parameter value of the selected model from the network, wherein
when said requested data of a model can not be measured, replacing the model with another model which does not require said requested data, requesting measured data for the other model, and determining whether the parameter value of the selected model can be predicted using the measured data of the other model,
when predictable, setting the predicted value as the parameter value of the selected model, and
when it is not predictable, setting a predetermined set value as the parameter value of the selected model, and conducting a test of the parameter value of the selected model to determine a reliability of the parameter value of the selected model.

5 more elements

A computer program product embodied on a computer-readable medium and comprising code that, when executed, causes a computer to perform the following:

(a) dividing the network into a plurality of subnetworks;
(b1) inputting information about at least two end points in a network, and inputting information about an appliance in a path in the network connecting the end points;
(b2) detecting an appliance in a path in the network connecting the end points, and obtaining appliance information;
(b3) determining a configuration of a simulation model of the network from the appliance information;
(b4) selecting an appropriate model for each component of the determined simulation model;
(b5) generating a simulation model of the network by requesting and obtaining necessary data for setting a parameter value of the selected model from the network;
and
(c) managing a simulation model, generated in each subnetwork, wherein
when said requested data of a model can not be measured, replacing the model with another model which does not require said requested data, requesting measured data for the other model, and determining whether the parameter value of the selected model can be predicted using the measured data of the other model,
when predictable, setting the predicted value as the parameter value of the selected model, and
when it is not predictable, setting a predetermined set value as the parameter value of the selected model, and conducting a test of the parameter value of the selected model to determine a reliability of the parameter value of the selected model.

8 more elements

Dependencies are inferred from the claim text.

Facts

Application: 09/572,937Filed 18 May 2000
Priority: JP 11-21132426 Jul 1999
Granted: 18 Apr 2006
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

H04L 41/0853
Retrieval of network configuration; Tracking network configuration history: by actively collecting configuration information or by backing up…
G06F 30/20
Computer-aided design [CAD]: design optimisation, verification or simulation
H04L 41/145
Network analysis or design: involving simulating, designing, planning or modelling of a network
G06F 2111/02
Details relating to CAD techniques: cAD in a network environment, e.g. collaborative CAD or distributed simulation