Packet receiving device, packet communication system, and packet reordering method
First Claim
1. A packet receiving device comprising:
- an acknowledgement section configured to acknowledge a receiving packet received from a packet transmission device and return an acknowledgement to said packet transmission device;
a network protocol stack having a function of performing a reordering of said receiving packet by guaranteeing an in-order delivery;
a reordering section configured to perform a reordering of said receiving packet in a lower layer than said network protocol stack without guaranteeing an in-order delivery; and
a buffer section in which an Out-of-order packet included in said receiving packet is stored while being associated with a flow,wherein said packet transmission device is configured to retransmit said transmission packet in a case where said acknowledgement relative to said transmission packet is not received within a predetermined time after transmitting said transmission packet,wherein said reordering section is configured to determine whether said receiving packet is an In-Order packet or an Out-of-Order packet,wherein said reordering section is configured to transfer said receiving packet to said network protocol stack in a case where said receiving packet is an In-Order packet,wherein said reordering section is configured to transfer, in a case where said receiving packet is an In-Order packet of a given flow and an Out-of-Order packet of said given flow is stored in said buffer section, said receiving packet to said network protocol stack and then transfer all of said Out-of-Order packet of said flow stored in said buffer section to said network protocol stack,wherein said receiving packet comprises an Out-of-Order packet of a first flow,wherein said reordering section is configured to find out whether an Out-of-Order packet of said first flow is already stored in said buffer section,wherein said reordering section is configured to find out, in a case where an Out-of-Order packet of said first flow is already stored in said buffer section, whether said receiving packet can be additionally stored in said buffer section,wherein said reordering section is configured to associate, in a case where said receiving packet can be additionally stored in said buffer section, said receiving packet to said first flow and then additionally store said receiving packet in said buffer section, andwherein said reordering section is configured to transfer, in a case where said receiving packet cannot be additionally stored in said buffer section, all of said Out-of-Order packet of said first flow to said network protocol stack.
1 Assignment
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Accused Products
Abstract
Under an environment where a packet retransmission is performed, a packet receiving device includes a reordering section, configured to perform a reordering of a receiving packet in a lower layer than a network protocol stack, and a buffer section. Out-of-Order packet among receiving packets is associated with a flow and stored in the buffer section. The reordering section determines whether the receiving packet is an In-Order packet or an Out-of-Order packet. In a case where the receiving packet is an In-Order packet of a flow and an Out-of-Order packet of the flow is stored in the buffer section, the reordering section transfers the receiving packet to the network protocol stack and then transfers all of Out-of-Order packet of the flow stored in the buffer section to the network protocol stack.
10 Citations
22 Claims
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1. A packet receiving device comprising:
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an acknowledgement section configured to acknowledge a receiving packet received from a packet transmission device and return an acknowledgement to said packet transmission device; a network protocol stack having a function of performing a reordering of said receiving packet by guaranteeing an in-order delivery; a reordering section configured to perform a reordering of said receiving packet in a lower layer than said network protocol stack without guaranteeing an in-order delivery; and a buffer section in which an Out-of-order packet included in said receiving packet is stored while being associated with a flow, wherein said packet transmission device is configured to retransmit said transmission packet in a case where said acknowledgement relative to said transmission packet is not received within a predetermined time after transmitting said transmission packet, wherein said reordering section is configured to determine whether said receiving packet is an In-Order packet or an Out-of-Order packet, wherein said reordering section is configured to transfer said receiving packet to said network protocol stack in a case where said receiving packet is an In-Order packet, wherein said reordering section is configured to transfer, in a case where said receiving packet is an In-Order packet of a given flow and an Out-of-Order packet of said given flow is stored in said buffer section, said receiving packet to said network protocol stack and then transfer all of said Out-of-Order packet of said flow stored in said buffer section to said network protocol stack, wherein said receiving packet comprises an Out-of-Order packet of a first flow, wherein said reordering section is configured to find out whether an Out-of-Order packet of said first flow is already stored in said buffer section, wherein said reordering section is configured to find out, in a case where an Out-of-Order packet of said first flow is already stored in said buffer section, whether said receiving packet can be additionally stored in said buffer section, wherein said reordering section is configured to associate, in a case where said receiving packet can be additionally stored in said buffer section, said receiving packet to said first flow and then additionally store said receiving packet in said buffer section, and wherein said reordering section is configured to transfer, in a case where said receiving packet cannot be additionally stored in said buffer section, all of said Out-of-Order packet of said first flow to said network protocol stack. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A packet communication system comprising:
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a packet transmission device configured to transmit a transmission packet; and a packet receiving device configured to receive said transmission packet from said packet transmission device as a receiving packet, wherein said packet receiving device comprises; an acknowledgement section configured to acknowledge said receiving packet and return an acknowledgement to said packet transmission device; a network protocol stack having a function of performing a reordering of said receiving packet; a reordering section configured to perform a reordering of said receiving packet in a lower layer than said network protocol stack; and a buffer section in which an Out-of-order packet included in said receiving packet is stored while being associated with a flow, wherein said packet transmission device is configured to perform, in a case where said acknowledgement relative to said transmission packet is not received within a predetermined time after a transmission of said transmission packet to said receiving device, a packet retransmission control to transmit said transmission packet to said packet receiving device again, wherein said reordering section is configured to determine whether said receiving packet is an In-Order packet or an Out-of-Order packet, wherein said reordering section is configured to transfer said receiving packet to said network protocol stack in a case where said receiving packet is an In-Order packet, wherein said reordering section is configured to transfer, in a case where said receiving packet is an In-Order packet of a given flow and an Out-of-Order packet of said given flow is stored in said buffer section, said receiving packet to said network protocol stack and then transfer all of said Out-of-Order packet of said flow stored in said buffer section to said network protocol stack, wherein said receiving packet comprises an Out-of-Order packet of a first flow, wherein said reordering section is configured to find out whether an Out-of-Order packet of said first flow is already stored in said buffer section, wherein said reordering section is configured to find out, in a case where an Out-of-Order packet of said first flow is already stored in said buffer section, whether said receiving packet can be additionally stored in said buffer section, wherein said reordering section is configured to associate, in a case where said receiving packet can be additionally stored in said buffer section, said receiving packet to said first flow and then additionally store said receiving packet in said buffer section, and wherein said reordering section is configured to transfer, in a case where said receiving packet cannot be additionally stored in said buffer section, all of said Out-of-Order packet of said first flow to said network protocol stack. - View Dependent Claims (20)
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21. A packet reordering method in a packet receiving device,
wherein said packet receiving device comprises: -
an acknowledgement section configured to acknowledge a receiving packet received from a packet transmission device; a network protocol stack having a function of performing a reordering of said receiving packet; and a buffer section in which an Out-of-Order packet is stored while being associated with a flow, wherein said packet transmission device is configured to retransmit, in a case where said acknowledgement relative to said transmission device is not received within a predetermined time after said transmission packet; wherein said packet reordering method comprises; performing a reordering of said transmission packet in a lower layer than said network protocol stack, and wherein performing said reordering comprises; determining whether said receiving packet is an In-Order packet or an Out-of-Order packet; transferring, in a case where said receiving packet is an In-Order packet, said receiving packet to said network protocol stack; and transferring, in a case where said receiving packet is an In-Order packet of a flow and said Out-of-Order packet of said flow is stored in said buffer section, said receiving packet to said network protocol stack and then transferring all of Out-of-Order packet of said flow stored in said buffer section to said network protocol stack, wherein said receiving packet comprises an Out-of-Order packet of a first flow, and wherein said reordering further includes; finding out whether an Out-of-Order packet of said first flow is already stored in said buffer section; finding out, in a case where an Out-of-Order packet of said first flow is already stored in said buffer section, whether said receiving packet can be additionally stored in said buffer section, associating, in a case where said receiving packet can be additionally stored in said buffer section, said receiving packet to said first flow and then additionally store said receiving packet in said buffer section, and transferring, in a case where said receiving packet cannot be additionally stored in said buffer section all of said Out-of-Order packet of said first flow to said network protocol stack.
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22. A non-transitory computer-readable recording medium configured to store a packet reordering program for executing a packet reordering process with a packet receiving device,
wherein said packet receiving device comprises: -
an acknowledgement section configured to acknowledge a receiving packet received from a packet transmission device; a network protocol stack having a function of performing a reordering of said receiving packet; and a buffer section in which an Out-of-Order packet is stored while being associated with a flow, wherein said packet transmission device is configured to retransmit, in a case where said acknowledgement relative to said transmission device is not received within a predetermined time after said transmission packet; wherein said packet reordering process comprises; performing a reordering of said transmission packet in a lower layer than said network protocol stack, and wherein performing said reordering comprises; determining whether said receiving packet is an In-Order packet or an Out-of-Order packet; transferring, in a case where said receiving packet is an In-Order packet, said receiving packet to said network protocol stack; and transferring, in a case where said receiving packet is an In-Order packet of a flow and said Out-of-Order packet of said flow is stored in said buffer section, said receiving packet to said network protocol stack and then transferring all of Out-of-Order packet of said flow stored in said buffer section to said network protocol stack, wherein said receiving packet comprises an Out-of-Order packet of a first flow, and wherein said reordering further includes; finding out whether an Out-of-Order packet of said first flow is already stored in said buffer section; finding out, in a case where an Out-of-Order packet of said first flow is already stored in said buffer section, whether said receiving packet can be additionally stored in said buffer section, associating, in a case where said receiving packet can be additionally stored in said buffer section, said receiving packet to said first flow and then additionally store said receiving packet in said buffer section, and transferring, in a case where said receiving packet cannot be additionally stored in said buffer section, all of said Out-of-Order packet of said first flow to said network protocol stack.
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Specification