System and method for failover handling at geo-redundant gateways
AssigneeAlcatel Lucent
InventorsVachaspati P. Kompella, Satyam Sinha, Praveen Vasant Muley, Sathyender Nelakonda
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Abstract
A method, system and apparatus for reversion of UE sessions from a backup SGW or protect node to an operationally restored primary SGW or working node.
Claims20
A method for managing a backup service gateway (SGW) associated with a primary SGW, the method comprising:
- in response to a determination that the primary SGW has returned to operation, synchronizing user equipment (UE) session state information between the backup and primary SGWs for at least those UEs previously supported by the primary SGW;
- and
- in response to a revertive action trigger, creating a handover channel between the backup and primary SGWs to enable a transition of UE support from the backup SGW to the primary SGW.
An apparatus for use in a service gateway (SGW) adapted to backup a primary SGW, the apparatus comprising:
- a processor configured for managing a backup service gateway (SGW) associated with a primary SGW, the method comprising:
- in response to a determination that the primary SGW has returned to operation, synchronizing user equipment (UE) session state information between the backup and primary SGWs for at least those UEs previously supported by the primary SGW;
- and
- in response to a revertive action trigger, creating a handover channel between the backup and primary SGWs to enable a transition of UE support from the backup SGW to the primary SGW.
A computer readable medium including software instructions which, when executed by a processer, perform a method for managing a backup service gateway (SGW) associated with a primary SGW, the method comprising:
- in response to a determination that the primary SGW has returned to operation, synchronizing user equipment (UE) session state information between the backup and primary SGWs for at least those UEs previously supported by the primary SGW;
- and
- in response to a revertive action trigger, creating a handover channel between the backup and primary SGWs to enable a transition of UE support from the backup SGW to the primary SGW.
A computer program product, wherein a computer is operative to process software instructions which adapt the operation of the computer such that computer performs a method for managing a backup service gateway (SGW) associated with a primary SGW, the method comprising:
- in response to a determination that the primary SGW has returned to operation, synchronizing user equipment (UE) session state information between the backup and primary SGWs for at least those UEs previously supported by the primary SGW;
- and
- in response to a revertive action trigger, creating a handover channel between the backup and primary SGWs to enable a transition of UE support from the backup SGW to the primary SGW.
Dependencies are inferred from the claim text.