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US 8,750,166 B2Granted
Route topology discovery in data networks
AssigneeNetsocket, Inc.
InventorLance Arnold Visser
Life of this patent
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Abstract
A system and method for performing topology discovery in a data network is provided. Network elements utilizing a distance-vector protocol, such as EIGRP, advertises routes and metric information. A resource control point or other element analyzes the advertised routes and metrics and determines the nexthop, thereby providing a topology map of the network.
Claims6
A method of performing topology discovery, the method comprising:
- initiating, by a resource control point, sessions with a plurality of routers within a network, wherein the sessions indicate that the resource control point does not participate in routing;
- receiving routes from the plurality of routers, each route including metric information;
- and
- resolving nexthops of the routes based upon the metric information, wherein the resolving includes indicating an unresolved route as resolved if a metric of the unresolved route is equal to a metric of a resolved route plus a link metric.
1 more element
Dependencies are inferred from the claim text.