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METHOD AND APPARATUS PROVIDING NETWORK REDUNDANCY AND HIGH AVAILABILITY TO REMOTE NETWORK NODES

  • US 20130242718A1
  • Filed: 03/16/2012
  • Published: 09/19/2013
  • Est. Priority Date: 03/16/2012
  • Status: Active Grant
First Claim
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1. A computer-implemented method in which a computer system performs operations comprising:

  • providing a first tunnel across a layer 3 network from a first network device to a second network device, said second network device a member of a cluster of network devices;

    providing a first virtual interface (VI) on said second network device, said first VI assigned to said first tunnel;

    passing information related to said first tunnel and said first VI to a third network device, said third network device a member of said cluster;

    providing a second tunnel across a layer 3 network from said third device to said first network device;

    providing a second virtual interface (VI) on said third network device, said second VI assigned to said second tunnel; and

    exchanging forwarding information learned on said first VI to said third network device and exchanging forwarding information learned on said second VI to said second network device.

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