Congestion management in managed packet-switched networks
AssigneeAlcatel Canada Inc.
InventorsWayne Wall, Micaela Giuhat, Johanne Mayer, Felix Katz
Life of this patent
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Abstract
A packet switched network includes a network manager for managing resources on the network and a plurality of switch nodes. A congestion indicator threshold is (Cir) for each resource at each switch node and congestion event indicator is forwarded to the network manager immediately upon the congestion level of a monitored resource exceeding its congestion threshold. A congestion status for the monitored resources of each switch node is maintained by the network manager.
Claims7
A method of managing a packet switched network comprising a network manager for managing resources on the network, and a plurality of switch nodes, each said switch node having resources to be monitored and being in communication with said network manager, and wherein packets passing through said switch nodes are discarded in the event of congestion, comprising the steps of:
- setting a congestion indicator threshold (CIT) for each said resource at each switch node, said congestion indicator threshold representing a predetermined level of congestion;
- forwarding a congestion event indicator to said network manager immediately in response to the congestion level of a monitored resource exceeding the congestion threshold set therefor;
- and
- maintaining at the network manager a congestion status for the monitored resources of each switch node in response the receipt at said network manager of said congestion event indicators.
Dependencies are inferred from the claim text.