Patent ID: 8437305

Claim:
A method for providing Home Agent redundancy comprising: initializing a second Home Agent to a Standby state to provide geographic redundancy for a first Home Agent that is located in a geographically separate area from the second Home Agent, wherein the first Home Agent is in an Active state and provides mobility management functions for a plurality of mobile nodes; receiving backup information at the second Home Agent from the first Home Agent, wherein the backup information includes data to continue a call on the second Home Agent in the event of a switchover from the first Home Agent to the second Home Agent; initiating a switchover from the first Home Agent to the second Home Agent such that the second Home Agent transitions from a Standby state to an Active state to provide mobility management functions for the plurality of mobile nodes; advertising in an IP routing domain, through the use of a dynamic routing protocol, identification information and IP pool information at the second Home Agent after transitioning to an Active state, where the identification information includes the identification information of the first Home Agent to allow nodes in the network to transition to the second Home Agent without service interruption; and receiving data at the second Home Agent sent from at least one of the plurality of mobile nodes.