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Distributed operating system for a layer 2 fabric

  • US 9,319,335 B1
  • Filed: 12/07/2011
  • Issued: 04/19/2016
  • Est. Priority Date: 12/07/2010
  • Status: Active Grant
First Claim
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1. A network switch, comprising:

  • a switch fabric including a switch fabric classifier, a plurality of external ports and a plurality of internal ports, the switch fabric being configured for switching incoming packets received at the external ports, the switch fabric classifier being configured for applying classification rules to process the incoming packets;

    a control processor configured to execute a network device operation system (ndOS), wherein network switches executing the ndOS are defined to switch layer 2 packets and to share network information with other network switches executing ndOS, the network switch having a first switch identification (ID) that uniquely identifies the network switch among network switches executing ndOS; and

    an internal switch operatively connected to the switch fabric and the control processor;

    wherein the control processor when executing ndOS is configured to send a first classification rule to the switch fabric classifier via the internal switch, the first classification rule identifying an action to be performed on packets satisfying the first classification rule;

    wherein the control processor when executing ndOS is configured to send a discovery packet through a first external port to a second network switch implementing ndOS, the discovery packet including the first switch ID and an ID of the first external port in the network switch.

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