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US 7,406,040 B1Granted
Method for tracking source and destination Internet Protocol data
AssigneeAT&T Corp.
InventorsCraig L. DeCaluwe, Hossein Eslambolchi
Life of this patent
Estimating the term…
Abstract
In an IP network, tabulating the number of data packets received from and/or sent to a particular IP address over time can provide a mechanism by which it is possible to determine or predict overloading of a node or nodes in an IP data network. By selectively deleting data packets received from a suspect source address or inhibiting the transmission of data packets to a suspect destination address, network management and control can be readily accomplished.
Claims20
A method comprising:
- based upon a tabulation at a second router, determining that a time-based traffic measure exceeds a predetermined threshold, said tabulation comprising a plurality of source counts of IP data packets, each source count of IP data packets of said plurality of source counts of IP data packets indicative of a count of packets received from a particular IP source during a predetermined time interval, said plurality of source counts of IP data packets associated with every source that provides IP data packets to said second router;
- and
- sending a message to a first router, said message adapted to instruct said first router to discard packets associated with said time-based traffic measure, wherein said first router is not a source router for said packets, said first router directly interconnected by a first plurality of data paths to a first sub-plurality of interconnected routers from a plurality of interconnected routers, said message transmitted from said second router responsive to said determination that said time-based traffic measure exceeds said predetermined threshold.
A method comprising:
- based upon a tabulation at a second router, determining that a time-based traffic measure exceeds a predetermined threshold, said tabulation comprising a plurality of destination counts of IP data packets, each destination count of IP data packets of said plurality of destination counts of IP data packets indicative of a count of packets routable to a particular IP destination address during a predetermined time interval;
- and
- sending a message to a first router, said message adapted to instruct said first router to discard packets associated with said time-based traffic measure, wherein said first router is not a source router for said packets, said first router directly interconnected by a first plurality of data paths to a first sub-plurality of interconnected routers from a plurality of interconnected routers, said message transmitted from said second router responsive to said determination that said time-based traffic measure exceeds said predetermined threshold.
A method comprising:
- tabulating at least one of a source count of a plurality of source counts of IP data packets and a destination count of a plurality of destination counts of IP data packets, each source count of IP data packets of said plurality of source counts of IP data packets indicative of a count of packets received from a particular IP source during a predetermined time interval, each destination count of IP data packets of said plurality of destination counts of IP data packets indicative of a count of packets routable to a particular IP destination address during said predetermined time interval, each of said plurality of source counts and said plurality of destination counts stored at a second router in an Internet Protocol (IP) data network, said plurality of source counts of IP data packets associated with every source that provides IP data packets to a first router;
- based upon at least one of said source count of said plurality of source counts of IP data packets and said destination count of said plurality of destination counts of IP data packets, determining that a time-based data traffic measure from said particular IP source exceeds a predetermined threshold;
- and
- sending a message to said first router, said message adapted to instruct said first router to discard packets from said particular IP source, wherein said first router is not a source router for said packets, said first router directly interconnected by a plurality of data paths to a sub-plurality of interconnected routers from a plurality of interconnected routers;
- said message sent responsive to said determination that said time-based data traffic measure from said particular IP source exceeds said predetermined threshold.
2 more elements
Dependencies are inferred from the claim text.