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METHOD AND APPARATUS FOR IMPLEMENTING CONTROL OF MULTIPLE PHYSICALLY DUAL HOMED DEVICES

  • US 20120230183A1
  • Filed: 05/15/2012
  • Published: 09/13/2012
  • Est. Priority Date: 06/18/2009
  • Status: Active Grant
First Claim
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1. A method of coupling at least one Ethernet switch unit to a routing-protocol-controlled Ethernet network, the method comprising:

  • dual homing the at least one Ethernet switch unit on a pair of gateways connected to the routing-protocol-controlled Ethernet network, the pair of gateways being connected by an inter-gateway trunk;

    configuring the at least one Ethernet switch unit and the pair of gateways to implement a control plane logical ring linking the at least one Ethernet switch unit to the pair of gateways;

    associating a common Media Access Control (MAC) address of the routing-protocol-controlled Ethernet network with each Ethernet switch unit linked to the pair of gateways via the control plane logical ring; and

    representing, into the routing-protocol-controlled Ethernet network at one of the gateways using the common MAC address, each Ethernet switch unit linked to the pair of gateways via the control plane logical ring.

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