NETWORK ANALYSIS ASSISTANCE DEVICE, NETWORK ASSESSMENT DEVICE, NETWORK ANALYSIS ASSISTANCE METHOD, NETWORK ASSESSMENT METHOD, NETWORK ANALYSIS ASSISTANCE PROGRAM AND NETWORK ASSESSMENT PROGRAM
First Claim
1. A network analysis assistance device for assisting analysis of networks in a system comprising a first device, a gateway device and a second device, the network analysis assistance device comprising:
- a first electronic message collector that connects to a first network to which the first device and the gateway device are connected, and collects electronic messages traveling on the first network;
a second electronic message collector that connects to a second network to which the gateway device and the second device are connected, and collects electronic messages traveling on the second network;
a mapping table in which the correlation between an electronic message travelling from the first network to the gateway device and an electronic message travelling on the second network from the gateway device, and the correlation between an electronic message travelling from the second network to the gateway device and an electronic message travelling on the first network from the gateway device, are defined;
an electronic message associator that associates electronic messages collected by the first electronic message collector and electronic messages collected by the second electronic message collector, with reference to the mapping table; and
a status analyzer that determines whether or not receipt of electronic messages between the first network and the second network is accomplished normally, from the results of the association by the electronic message associator.
1 Assignment
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Accused Products
Abstract
A first electronic message collector collects electronic messages travelling on a first network and stores the electronic messages in a first storage. A second electronic message collector collects electronic messages travelling on a second network and stores the electronic messages in a second storage. An electronic message associator retains a mapping table in which the correlation, or similar, between electronic messages travelling from the first network to a gateway device and electronic messages travelling from the gateway device the second network are defined. The electronic message associator references the mapping table and associates the electronic messages stored in the second storage with the electronic messages stored in the first storage. From the result of the above-mentioned association, a status analyzer determines whether or not receipt of electronic message between the first network and the second network is accomplished normally.
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Citations
18 Claims
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1. A network analysis assistance device for assisting analysis of networks in a system comprising a first device, a gateway device and a second device, the network analysis assistance device comprising:
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a first electronic message collector that connects to a first network to which the first device and the gateway device are connected, and collects electronic messages traveling on the first network; a second electronic message collector that connects to a second network to which the gateway device and the second device are connected, and collects electronic messages traveling on the second network; a mapping table in which the correlation between an electronic message travelling from the first network to the gateway device and an electronic message travelling on the second network from the gateway device, and the correlation between an electronic message travelling from the second network to the gateway device and an electronic message travelling on the first network from the gateway device, are defined; an electronic message associator that associates electronic messages collected by the first electronic message collector and electronic messages collected by the second electronic message collector, with reference to the mapping table; and a status analyzer that determines whether or not receipt of electronic messages between the first network and the second network is accomplished normally, from the results of the association by the electronic message associator. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A network test device for testing operation of a gateway device connecting a first network and a second network, this network test device comprising:
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a first electronic message receiver that be connected to the first network for receiving electronic messages traveling on the first network; a second electronic message receiver that be connected to the second network for receiving electronic messages traveling on the second network; a received electronic message storage that stores electronic messages respectively received by the first electronic message receiver and the second electronic message receiver; a mapping information creator that estimates the correlation between input electronic messages input into the gateway device from the first network and output electronic messages output on the second network from the gateway device, based on multiple electronic messages stored in the received electronic message storage and creating mapping information consisting of information obtained as a result of estimation; an object information database in which properties and property values are correlated in levels for all or a portion of the objects managed by the gateway device; a test electronic message creator that creates an input electronic message for test based on the mapping information and the object information database; an electronic message sender that outputs the input electronic message for test to the first network; and a test result determiner whether or not the test results are normal, based on one or multiple electronic messages stored in the received electronic message storage after output of the input electronic message for test by the electronic message sender, and the mapping information. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A network analysis assistance method for assisting analysis of networks in a system comprising a first device, a gateway device and a second device, the network analysis assistance method comprising:
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a first electronic message collection step that collects electronic messages traveling on a first network to which the first device and the gateway device are connected; a second electronic message collection step that collects electronic messages traveling on a second network to which the gateway device and the second device are connected; an electronic message association step that associates electronic messages collected in the first electronic message collection step and electronic messages collected in the second electronic message collection step, with reference to a mapping table in which the correlation between an electronic message travelling from the first network to the gateway device and an electronic message travelling on the second network from the gateway device, and the correlation between an electronic message travelling from the second network to the gateway device and an electronic message travelling on the first network from the gateway device, are defined; and a status analysis step that determines whether or not receipt of electronic messages between the first network and the second network is accomplished normally, from the results of the association in the electronic message association step.
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16. A network test method for testing operation of a gateway device connected to a first network and a second network, the network test method comprising:
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a first electronic message receiving step that receives electronic messages traveling on the first network; a second electronic message receiving step that receives electronic messages traveling on the second network; a received electronic message storer step that stores in a received electronic message storage electronic messages respectively received by the first electronic message receiving step and the second electronic message receiving step; a mapping information creation step that estimates the correlation between input electronic messages input into the gateway device from the first network and output electronic messages output on the second network from the gateway device, based on multiple electronic messages stored in the received electronic message storage, and creating mapping information consisting of information obtained as a result of estimation; a test electronic message creation step that creates input electronic messages for test based on the mapping information and an object information database in which properties and property values are correlated in levels for all or a portion of the objects managed by the gateway device; an electronic message sending step that outputs the input electronic messages for test to the first network; and a test result determining step that determines whether or not the test results are normal, based on one or multiple electronic messages stored in the received electronic message storage after output of the input electronic messages for test in the electronic message sending step, and the mapping information.
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17. A non-transitory computer-readable recording medium having stored thereof a network analysis assistance program for assisting analysis of networks in a system comprising a first device, a gateway device and a second device, the network analysis assistance program causing a computer to execute:
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a first electronic message collection step that collects electronic messages traveling on a first network to which the first device and the gateway device are connected; a second electronic message collection step that collects electronic messages traveling on a second network to which the gateway device and the second device are connected; an electronic message association step that associates electronic messages collected in the first electronic message collection step and electronic messages collected in the second electronic message collection step, with reference to a mapping table in which the correlation between an electronic message travelling from the first network to the gateway device and an electronic message travelling on the second network from the gateway device, and the correlation between an electronic message travelling from the second network to the gateway device and an electronic message travelling on the first network from the gateway device, are defined; and a status analysis step that determines whether or not receipt of electronic messages between the first network and the second network is accomplished normally, from the results of the association in the electronic message association step.
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18. A non-transitory computer-readable recording medium having stored thereof a network test program for testing operation of a gateway device connected to a first network and a second network, this network test program:
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a first electronic message receiving step that receives electronic messages traveling on the first network; a second electronic message receiving step that receives electronic messages traveling on the second network; a received electronic message storer step that stores in a received electronic message storage electronic messages respectively received in the first electronic message receiving step and the second electronic message receiving step; a mapping information creation step that estimates the correlation between input electronic messages input into the gateway device from the first network and output electronic messages output on the second network from the gateway device, based on multiple electronic messages stored in the received electronic message storage, and creating mapping information consisting of information obtained as a result of estimation; a test electronic message creation step that creates input electronic messages for test based on the mapping information and an object information database in which properties and property values are correlated in levels for all or a portion of the objects managed by the gateway device; an electronic message sending step that outputs the input electronic messages for test to the first network; and a test result determining step that determines whether or not the test results are normal, based on one or multiple electronic messages stored in the received electronic message storage after output of the input electronic messages for test in the electronic message sending step, and the mapping information.
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Specification