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US 6,781,992 B1Granted
Queue engine for reassembling and reordering data packets in a network
AssigneeNetrake Corporation
InventorsAswinkumar Vishanji Rana, Corey Alan Garrow
Life of this patent
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AssigneeNetrake Corporation
InventorsAswinkumar Vishanji Rana, Corey Alan Garrow
Estimating the term…
A queue engine is described that is operable to reorder and reassemble data packets from network traffic into unfragmented and in order traffic flows for applications such as deep packet classification and quality of service determination. The queue engine stores incoming data packets in a packet memory that is controlled by a link list controller. A packet assembler extracts information from each data packet, particularly fields from the header information, and uses that information among other things, to determine if the data packet is fragmented or out of order, and to associate the data packet with a session id. If the packet is determined to be out of order, the queue engine includes a reordering unit which is able to modify links with the link list controller to reorder data packets. A fragment reassembly unit is also included which is capable of taking fragments and reassembling them into complete unfragmented data packets. The reordered and reassembled data packets are then sent to an output where further operations such as deep packet classification can take place.
A queue engine for reordering out of sequence data packets which are associated with a traffic flow on a data network, some data packets including a sequence number that determines packet order, the queue engine comprising:
A queue engine for reordering out of sequence data packets and reassembling fragmented data packets which are associated with a traffic flow on a data network, the queue engine comprising:
Dependencies are inferred from the claim text.