Routing topology bandwidth management methods and system
First Claim
1. A method for facilitating bandwidth management in a hierarchical routing domain, comprising the steps of:
- receiving a domain admission control request for a communication session between a source device and a destination device; and
in a domain bandwidth manager associated with an upper level of a hierarchical routing domain;
determining an area-by-area path through a lower level of the routing domain for facilitating the communication session, the area-by-area path comprising a plurality of areas associated with the lower level and at least one inter-area link connecting the plurality of areas;
determining a plurality of area bandwidth managers associated with the area-by-area path; and
coordinating admission control to the routing domain for the communication session using the plurality of area bandwidth managers.
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Abstract
A system for facilitating bandwidth management in a routing domain (100), the system including: a domain bandwidth manager (116); and a plurality of area bandwidth managers (118, 120, 122, 124, 126, 128) coupled to the domain bandwidth manager and arranged in accordance with an OSPF hierarchical routing topology with the domain bandwidth manager at an upper level of the topology and each area bandwidth manager located in a different area of the routing topology in at least one lower level of the topology, wherein the domain bandwidth manager and the plurality of area bandwidth managers cooperatively coordinate admission control to a routing domain for facilitating a communication session between a source device and a destination device.
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Citations
20 Claims
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1. A method for facilitating bandwidth management in a hierarchical routing domain, comprising the steps of:
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receiving a domain admission control request for a communication session between a source device and a destination device; and
in a domain bandwidth manager associated with an upper level of a hierarchical routing domain;
determining an area-by-area path through a lower level of the routing domain for facilitating the communication session, the area-by-area path comprising a plurality of areas associated with the lower level and at least one inter-area link connecting the plurality of areas;
determining a plurality of area bandwidth managers associated with the area-by-area path; and
coordinating admission control to the routing domain for the communication session using the plurality of area bandwidth managers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. Apparatus for facilitating bandwidth management in a hierarchical routing domain, the apparatus comprising:
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a storage device storing executable code; and
a processor executing the code for controlling the apparatus to perform the steps of;
receiving a domain admission control request for a communication session between a source device and a destination device;
in a domain bandwidth manager associated with an upper level of a hierarchical routing domain;
determining an area-by-area path through a lower level of the routing domain for facilitating the communication session, the area-by-area path comprising a plurality of areas associated with the lower level and at least one inter-area link connecting the plurality of areas;
determining a plurality of area bandwidth managers associated with the area-by-area path; and
coordinating admission control to the routing domain for the communication session using the plurality of area bandwidth managers.
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17. A system for facilitating bandwidth management in a routing domain, the system comprising:
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a domain bandwidth manager; and
a plurality of area bandwidth managers coupled to the domain bandwidth manager and arranged in accordance with a hierarchical routing topology with the domain bandwidth manager at an upper level of the topology and each area bandwidth manager located in a different area of the routing topology in at least one lower level of the topology, wherein the domain bandwidth manager and the plurality of area bandwidth managers cooperatively coordinate admission control to a routing domain for facilitating a communication session between a source device and a destination device. - View Dependent Claims (18, 19, 20)
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Specification