Multiplex communications – Data flow congestion prevention or control – Control of data admission to the network
Reexamination Certificate
2008-03-04
2008-03-04
Ngo, Ricky Q. (Department: 2616)
Multiplex communications
Data flow congestion prevention or control
Control of data admission to the network
C370S235000, C370S252000
Reexamination Certificate
active
07339889
ABSTRACT:
Methods and apparatus are provided for bandwidth management within Automatically Switched Optical Networks. An Optical Connection Controller (OCC) provides threshold based load balancing using an upper and a lower threshold for each port of a network element, and once port usage exceeds the upper threshold no more connections are allowed through the port until the port usage falls below the lower threshold. The OCC also minimizes fragmentation of a port so as to reduce the probability of call rejection as a result of fragmentation. The OCC also maintains a database of shortest paths between a network element and each destination, so that connections can be re-established quickly through alternate paths in the event of failure of a link or node. The OCC also provides the entire network with notification of a fault, thereby enhancing CR-LDP fault notification messaging.
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Lee Yang Sup
Oprea Dan
Borden Ladner Gervais LLP
Hailu Kibrom T
Measures Jeffrey M.
Ngo Ricky Q.
Nortel Networks Limited
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