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US 8,045,453 B2Granted
Methods and systems for alleviating congestion in a connection-oriented data network
AssigneeAlcatel Lucent
InventorsNaeem Asghar, Randeep S. Bhatia, Rakesh Chandwani, Colin Corcoran, Jr., Fang Hao, Joseph Karwisch, Pramod V. N. Koppol, Tirunell V. Lakshman, Michael P. Siesta, Stephen M. Zlatos
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Abstract
Congestion in connection-oriented data networks is alleviated by simulating the rerouting of circuits to uncongested parts of the network and then rerouting such circuits in a manner that causes little, or no, disruption to other parts of the network.
Claims25
A method for alleviating congestion in a connection-oriented network comprising:
- simulating the network's online routing of data offline;
- identifying one or more congested trunks from the simulations;
- and
- saturating one or more of the congested trunks with traffic using one or more dummy circuits to ensure that the one or more congested trunks are not used to re-route traffic;
- setting up a defined path away from one of the congested trunks for each circuit in a list of candidate circuits;
- setting up one of the dummy circuits between end points of the congested trunk associated with the defined pathway while reserving substantially all of a residual bandwidth on the congested trunk;
- and
- deleting the defined path.
5 more elements
A system for alleviating congestion in a connection-oriented network comprising:
- an optimization server operable to
- simulate the network's online routing of data offline,
- identify one or more congested trunks from the simulations, and
- saturate one or more of the congested trunks with traffic using one or more dummy circuits to ensure that the one or more congested trunks are not used to re-route traffic;
- and
- a provisioning server operable to
- set up a defined path away from one of the congested trunks for each circuit in a list of candidate circuits,
- set up one of the dummy circuits between end points of the congested trunk associated with the defined pathway while reserving substantially all of a residual bandwidth on the congested trunk, and
- delete the defined path.
6 more elements
Dependencies are inferred from the claim text.