Electrical computers and digital processing systems: multicomput – Computer network managing – Computer network monitoring
Patent
1998-12-02
2000-08-22
Geckil, Mehmet B.
Electrical computers and digital processing systems: multicomput
Computer network managing
Computer network monitoring
709223, G06F 15173
Patent
active
061087025
ABSTRACT:
A monitoring system for determining accurate topology features of a network, and methods of operating the monitoring system, are disclosed . In the preferred embodiment, the system creates an accurate topology map of a given network by: obtaining a list of managed network devices; identifying trunk ports, link channel ports, and trunk channel ports; identifying link port and node ports; determining connections between the ports; storing the collected information; and displaying the network topology. Methods are disclosed for identifying link and node ports. In the preferred method, information regarding the devices, including VLAN/backplane information, router ARP table information, device interface information, and physical address information for machines and devices connected to the network is obtained. Also, the ports and/or devices are logically grouped in order to provide more accurate topology information. Source address table timing information is obtained for each device, and a historical database of source table information is kept. Filters may then be utilized on the source address tables in order to provide more accurate topology results. Connections between nodes are also resolved by utilizing sorting methods. Alternative methods are also disclosed for identifying link ports and determining connections between nodes.
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Geckil Mehmet B.
Micromuse Inc.
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