Method and apparatus for controlling transmission for lossless packet forwarding
AssigneeElectronics and Telecommunications Research Institute
InventorsYeoncheol Ryoo, Jeong-Dong Ryoo, Taesik Cheung
Life of this patent
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Abstract
In the apparatus for controlling a transmission for lossless packet forwarding, when a failure is detected on one of a plurality of forwarding paths set between a transmitting node and a receiving node, packet transmission of a flow associated with the path in which the failure occurs is stopped, when the path in which the failure occurs is recovered, packet transmission of the flow is resumed, and the receiving node temporarily extends the bandwidth of the flow.
Claims8
A method for controlling a transmission for lossless packet forwarding in an apparatus for controlling a transmission for lossless packet forwarding in which a transmitting node duplicates packets and transmits the packets through a plurality of forwarding paths established between the transmitting node and a receiving node, and the receiving node deletes duplicate packets, the method comprising:
- when a failure is detected on one of the plurality of forwarding paths, stopping packet transmission of a flow associated with the failed path at the node detecting the failure;
- when the failed path is recovered, temporarily extending a reserved bandwidth of the flow at the receiving node;
- deleting duplicate packets from packets received at the receiving node based on sequence number of packets received as the duplicate packets;
- and
- resuming packet transmission of the flow associated with the failed path at the node detecting the failure by receiving packets on the plurality of forwarding paths through the extended bandwidth at the receiving node.
An apparatus for controlling a transmission for lossless packet forwarding in which a transmitting node duplicates packets and transmits the packets through a plurality of forwarding paths established between the transmitting node and a receiving node, and the receiving node deletes duplicate packets, the apparatus comprising:
- when a failure is detected on at least one of the plurality of forwarding paths, a transmission controller that stops packet transmission transmitted to the failed path and resumes the stopped packet transmission upon recovery of the failure of the corresponding path;
- and
- when the failed path is recovered, a reception processor that temporarily extends a reserved bandwidth of a flow at the receiving node, deletes duplicate packets from packets received at the receiving node based on sequence number of packets received as the duplicate packets, and receives packets on the plurality of forwarding paths through the extended bandwidth at the receiving node.
Dependencies are inferred from the claim text.