System and method for path failure recovery in a communications environment
AssigneeRockstar Bidco, LP
InventorsRishad Mahasoom, Stephen Noel, Daniel Warren
Life of this patent
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Abstract
Provided are a system and method for recovering from failure of a path connecting first and second nodes in a communications network. In one example, the method includes identifying that the path has failed. Contexts affected by the path failure are deleted on the first node, and the second node with which the path was shared is notified that the contexts have been deleted.
Claims18
A method for recovering from path failure in a communications network, the method comprising:
- providing a path connecting first and second nodes;
- identifying that the path has failed;
- deleting at least one Packet Data Protocol (PDP) context affected by the path failure on the first node;
- updating a value on the first node to indicate that the at least one PDP context has been deleted, wherein the value is associated with the path;
- and
- sending the updated value to the second node to notify the second node that the at least one PDP context has been deleted.
A communications system configured for recovering from path failure between nodes, the system comprising:
- first and second nodes connected by a path;
- a processor accessible to the first node;
- a memory accessible to the processor;
- and
- a plurality of instructions stored on the memory and executable by the processor, the instructions including:
- instructions for identifying that the path has failed;
- instructions for deleting at least one Packet Data Protocol (PDP) context affected by the path failure on the first node;
- and
- instructions for notifying the second node with which the path was shared that the at least one PDP context has been deleted on the first node.
A gateway serving node (GSN), comprising:
- a non-volatile recovery counter associated with a data path, the data path connecting the GSN with a second GSN;
- wherein the GSN is configured to:
- identify that the data path has failed;
- responsive to identifying that the data path has failed:
- delete at least one PDP context associated with the data path;
- increment a value of the non-volatile recovery counter;
- and
- notify the second GSN that the at least one PDP context has been deleted.
Dependencies are inferred from the claim text.