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US 2007/0165546 A1Published application
Packet-switched network topology tracking method and system
AssigneeAT&T Intellectual Property II, L.P.
InventorsAlbert Greenberg, Aman Shaikh
Life of this patent
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Abstract
The present invention permits a network operator to maintain a timely view of changes to an operational packet-switched network.
Claims11
A method of tracking the topology of a packet-switched network comprising:
- (a) passively monitoring link state advertisements flooded through the network by routers in the network participating in a link state routing protocol;
- and
- (b) using information in the link state advertisements to construct a topology view of the network.
A system for tracking the topology of a packet-switched network comprising:
- one or more reflectors which are capable of passively monitoring link state advertisements flooded through the network by routers in the network participating in a link state routing protocol;
- and
- an aggregator which is capable of receiving topology information from each of the reflectors and constructing a topology view of the network.
A computer-readable medium having stored thereon a plurality of instructions, the plurality of instructions including instructions which, when executed by a processor, cause the processor to perform the steps of a method of tracking the topology of a packet-switched network, comprising:
- (a) passively monitoring link state advertisements flooded through the network by routers in the network participating in a link state routing protocol;
- and
- (b) using information in the link state advertisements to construct a topology view of the network.
Dependencies are inferred from the claim text.