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High availability networking with warm standby interface failover

  • US 6,728,780 B1
  • Filed: 06/02/2000
  • Issued: 04/27/2004
  • Est. Priority Date: 06/02/2000
  • Status: Expired due to Fees
First Claim
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1. A method for maintaining high availability in a computer network, said method comprising:

  • adding a first High Availability Networking (HAnet) mechanism to a first node of said computer network, wherein said HAnet mechanism operates within an Application layer of an architectural model of said computer network;

    adding a second network connection to said computer network, wherein said second network connection is between said first node and a second node of said network;

    configuring an interface of said first node corresponding to said secondary connection with a first set of dummy configuration parameters upon startup;

    disabling said secondary connection upon configuring said interface of said first node, wherein said disabled secondary connection is not active but said interface of said first node remains configured;

    monitoring a first network connection of said computer network, wherein said first network connection is between said first node and said second node, and wherein said monitoring is by said first HAnet mechanism;

    detecting a failure of said first network connection, wherein said failure is detected by said first HAnet mechanism; and

    performing a failover from said first network connection to said second network connection in response to detecting said failure, wherein said failover is performed by said first HAnet mechanism.

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