Multiplex communications – Communication techniques for information carried in plural... – Adaptive
Reexamination Certificate
2006-10-10
2006-10-10
Phunkulh, Bob A. (Department: 2616)
Multiplex communications
Communication techniques for information carried in plural...
Adaptive
C370S400000, C370S392000, C370S229000
Reexamination Certificate
active
07120165
ABSTRACT:
A method and system for allocating and controlling a hierarchy of labels in an MPLS network is provided. The hierarchy of labels, inserted into MPLS packets, is introduced so as to correspond to the hierarchy of sub-flows within a data flow. The labels have the established dependency so that positions of labels in the hierarchy identify a sequence of processing the labels and functions associated with the labels. The system for allocating and controlling the hierarchy of MPLS labels includes a first control plane mapper for releasing available labels, a first controller for assigning the released labels according to the hierarchy, means for transmitting the labels in the network, a second controller for detecting the labels, and a second control plane mapper for maintaining current label dependency within the hierarchy. If required, re-addressing of the hierarchy of labels may be performed to maintain flow-sub-flow association throughout two adjacent networks. In the preferred embodiments on the invention the method of allocating and controlling hierarchy of labels is applied to sub-flows within FA-LSP flows, and to multi-cast services in the network associated with a function of flooding and filtering data within a network node.
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Carpini Walter Joseph
Kasvand-Harris Angelica Grace Emelie
Mark Barry Ding Ken
Neustadter Udo Mircea
Donnelly Victoria
Phunkulh Bob A.
Tropic Networks Inc.
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