Cisco Technology, Inc.

Greg Cheever

Rajesh Ramankutty

Sanil Kumar Puthiyandyil

Matthew Hayden Harper

Satya (Satish) Vasamsetti

Clarence Drumheller

Systems and methods are provided that allow voice and data traffic to be shifted from one chassis to other chassis without interrupting service. Geographic Redundancy (GR) is an inter-chassis redundancy, where the chassis may be a home agent, a packet data serving node, or any combination of wireless networking devices. Additionally, each chassis can have one or more partitions that handle subscriber session traffic and a corresponding redundant partition on a different chassis. The redundant chassis partition can take over all or a portion of the functionality of the active chassis partition if the active chassis or any critical peer servers/gateways communicating with the active chassis should fail. This provides users with uninterrupted service in the case of some failures.

System and method for active geographic redundancy

Methods and systems for providing redundancy in servicing packet data communications within wireless mobile data networks are disclosed. More particularly, the method and system provide a redundant Home Agent with the ability to assume the role of the primary Home Agent in the event of a primary Home Agent network, software, or other failure. The redundancy allows the Home Agent services to remain functional even in the event of a failure of one of the Home Agents in the redundant group, which may be composed of one or more Home Agents. The Home Agents can use a service redundancy protocol which is composed of messages that are sent between the redundant group of Home Agents. The messages allow the Home Agents to, for example, back up call session information, check on the status of one another, and share priority information.

Method for providing home agent geographic redundancy via a service redundancy protocol

Methods and systems for providing redundancy in servicing packet data communications within wireless mobile data networks are disclosed. More particularly, the method and system for provide a redundant Home Agent with the ability to assume the role of the primary Home Agent in the event of a primary Home Agent network, software, or other failure. The redundancy allows Home Agent services to remain functional in the case of a failure of one of the Home Agents in the redundant group, which may be composed of one or more Home Agents. The Home Agents can be located in geographically separate areas to ensure that a network outage event in one geographic area does not cause subscriber services to be impacted.

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Hampstead, NH, United States of America

Greg Cheever