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Notifying a Controller of a Change to a Packet Forwarding Configuration of a Network Element Over a Communication Channel

  • US 20110317559A1
  • Filed: 12/17/2010
  • Published: 12/29/2011
  • Est. Priority Date: 06/25/2010
  • Status: Active Grant
First Claim
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1. A method performed by a network element, for notifying a controller of a change to a packet forwarding configuration of the network element, where the network element is separated from the controller by a communication channel, the method comprising the steps of:

  • determining the change to the packet forwarding configuration of the network element, wherein the packet forwarding configuration specifies how packets are to be forwarded by the network element; and

    actively notifying the controller of the change to the packet forwarding configuration by sending a message to the controller over the communication channel, the message in addition to indicating the change also indicating at least one detail about the packet forwarding configuration after the change.

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