Network topology discovery systems and methods
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United States of America Patent
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Sep 24, 2013
Grant Date -
May 22, 2003
app pub date -
Oct 15, 2002
filing date -
Oct 15, 2001
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A system discovers the topology of devices in a network, such as all of the layer-2 and layer-3 devices, including routers and switches. The devices are mapped, as well as the links that join them. The devices are polled using SNMP requests. Route tables are derived from each router to determine addresses of the devices. A spanning tree process is used to discover layer-2 devices. Connections between layers are then discovered. Where information is incomplete, an undiscovered router cloud is recognized.
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