Optimizing transfer of fragmented packetized data

• US 10,313,486 B2
• Filed: 01/07/2015
• Issued: 06/04/2019
• Est. Priority Date: 01/07/2015
• Status: Active Grant

• Current Assignee: Quest Software, Inc.
• Original Assignee: SonicWALL, Inc. (SonicWall Holdings Ltd.)
• Inventors: Zhao, Li, Xiang, Dong, Chen, Zhong, He, Yicheng, Yang, Yanjun
• Primary Examiner(s): Vu, Viet D
• Assistant Examiner(s): Mian, Mohammad Yousuf A.
• Application Number:
  US14/591,781
• Publication Number:
  US 20160198020A1
• Time in Patent Office: 1,609 Days
• Field of Search: None
• CPC Class Codes: H04L 69/04 Protocols for data compression, e.g. ROHC
• CPC Class Codes: H04L 69/166 IP fragmentation; TCP segmentation

Abstract

The present invention increases the efficiency of transmitting data from a plurality of fragmented internet protocol (IP) packets over a computer network. After receiving a plurality of fragmented packets over a computer network interface a computing device may reassemble data from the plurality of packets into an IP packet that includes data from each of the fragmented IP packets. The reassembled IP packet may then be compressed and encrypted before being transmitted to a computer identified in a destination address in each of the plurality of fragmented packets.

Claims

1. A method for optimizing the transfer of packetized data between electronic devices in a computer network, the method comprising:

receiving data packets of a set comprising a plurality of fragmented internet protocol (IP) packets sent from a source computer to a destination computer for processing at the destination computer, the received set of fragmented IP packets comprising a number of bytes;

identifying that the set of fragmented IP packets includes redundant information;

assembling a first number of the set of fragmented IP packets into a coalesced IP packet, wherein assembling the set of fragmented IP packets comprises removing at least a portion of the redundant information to reduce the number of bytes, and

adjusting a header of the coalesced IP packet to include a length of the coalesced IP packet;

compressing the coalesced IP packet;

identifying a size of the compressed coalesced IP packet, the size of the compressed coalesced IP packet corresponding to a first average size;

identifying that the size of the compressed coalesced IP packet is less than a maximum transmission unit size;

transmitting the compressed coalesced IP packet to the destination computer;

identifying a second number of fragmented IP packets to coalesce into a second coalesced IP packet based on comparing the first average size to the maximum transmission unit size and increasing the number of the set of fragmented IP packets to include in the second coalesced IP packet to a second number of packets according to a calculation;

assembling the second number of the set of fragmented IP packets into a second coalesced IP packet;

compressing the second coalesced IP packet; and

transmitting the second compressed coalesced IP packet to the destination computer.

2. The method of claim 1, further comprising encrypting the compressed coalesced IP packet before transmitting the compressed coalesced IP packet.

3. The method of claim 1, wherein the plurality of fragmented IP packets are received over a first network interface at a computing device, and the compressed coalesced IP packet is transmitted over a second network interface at the computing device.

4. The method of claim 1, wherein the number of fragmented IP packets assembled into the coalesced IP packet corresponds to a predetermined setting.

5. The method of claim 4, wherein the predetermined setting is set by a network administrator at a graphical user interface (GUI) associated with the computing network.

6. The method of claim 1, wherein the number of fragmented IP packets assembled into the coalesced IP packet corresponds to historical information of one or more coalesced IP packets previously assembled in the computing network, and a number of fragmented IP packets previously assembled into each of the one or more coalesced IP packets include the same source and destination addresses.

7. The method of claim 6, wherein the historical information corresponds to at least one of an average amount of bytes in a set of coalesced IP packets previously assembled from the fragmented IP packets, and the fragmented IP packets are associated with at least one of an audio stream or a video stream.

8. A non-transitory computer-readable storage medium having embodied thereon a program executable by a processor to perform a method for optimizing the transfer of packetized data between electronic devices in a computer network, the method comprising:

receiving data packets of a set comprising a plurality of fragmented internet protocol (IP) packets sent from a source computer to a destination computer for processing at the destination computer, the received set of fragmented IP packets comprising a number of bytes;

identifying that the set of fragmented IP packets includes redundant information;

assembling a first number of the set of fragmented IP packets into a coalesced IP packet, wherein assembling the set of fragmented IP packets comprises removing at least a portion of the redundant information to reduce the number of bytes, and adjusting a header of the coalesced IP packet to include a length of the coalesced IP packet;

compressing the coalesced IP packet;

identifying a size of the compressed coalesced IP packet, the size of the compressed coalesced IP packet corresponding to a first average size;

identifying that the size of the compressed coalesced IP packet is less than a maximum transmission unit size;

transmitting the compressed coalesced IP packet to the destination computer;

identifying a second number of fragmented IP packets to coalesce into a second coalesced IP packet based on comparing the first average size to the maximum transmission unit size and increasing the number of the set of fragmented IP packets to include in the second coalesced IP packet to a second number of packets according to a calculation;

assembling the second number of the set of fragmented IP packets in to a second coalesced IP packet;

compressing the second coalesced IP packet; and

transmitting the second compressed coalesced IP packet to the destination computer.

9. The non-transitory computer-readable storage medium of claim 8, wherein the program further executable to encrypt the compressed coalesced IP packet before transmitting the compressed coalesced IP packet.

10. The non-transitory computer-readable storage medium of claim 8, wherein the plurality of fragmented IP packets are received over a first network interface at a computing device, and the compressed coalesced IP packet is transmitted over a second network interface at the computing device.

11. The non-transitory computer-readable storage medium of claim 8, wherein the number of fragmented IP packets assembled into the coalesced IP packet corresponds to a predetermined setting.

12. The non-transitory computer-readable storage medium of claim 11, wherein the predetermined setting is set by a network administrator at a graphical user interface (GUI) associated with the computing network.

13. The non-transitory computer-readable storage medium of claim 8, wherein the number of fragmented IP packets assembled into the coalesced IP packet corresponds to historical information of one or more coalesced IP packets previously assembled in the computing network, and a number of fragmented IP packets previously assembled into each of the one or more coalesced IP packets include the same source and destination addresses.

14. The non-transitory computer-readable storage medium of claim 13, wherein the historical information corresponds to at least one of an average amount of bytes in a set of compressed coalesced IP packets previously assembled from the fragmented IP packets, and the fragmented IP packets are associated with at least one of an audio stream or a video stream.

15. A system for optimizing the transfer of packetized data between electronic devices in a computer network, the system comprising:

one or more computer network interfaces that;

receive data packets of a set comprising a plurality of fragmented internet protocol (IP) packets sent from a source computer to a destination computer for processing at the destination computer;

a memory; and

a processor that executes instructions stored in the memory, wherein execution of the instructions;

identifies that the set of fragmented IP packets includes redundant information,

assembles a first number of the set of fragmented IP packets into a coalesced IP packet, wherein assembling the set of fragmented IP packets comprises removing at least a portion of the redundant information to reduce the number of bytes, and adjusting a header of the coalesced IP packet to include a length of the coalesced IP packet, and

compresses the coalesced IP packet,

identifies a size of the compressed coalesced IP packet, the size of the compressed coalesced IP packet corresponding to a first average size,

identifies that the size of the compressed coalesced IP packet is less than a maximum transmission unit size, wherein one of the one or more computer network interfaces transmits the compressed coalesced IP packet to the destination computer,

identifies a second number of fragmented IP packets to coalesce into a second coalesced IP packet based on comparing the first average size to the maximum transmission unit size and increasing the number of the set of fragmented IP packets to include in the second coalesced IP packet to a second number of packets according to a calculation, and

assembles the second number of the set of fragmented IP packets into a second coalesced IP packet, and

compresses the second coalesced IP packet, wherein the second compressed coalesced IP packet is transmitted to the destination computer.

16. The system of claim 15, wherein the processor further executes instructions out of the memory to encrypt the compressed coalesced IP packet before the compressed coalesced IP packet is transmitted.

17. The system of claim 15, wherein the number of fragmented IP packets assembled into the coalesced IP packet corresponds to a predetermined setting.

18. The system of claim 17, wherein the predetermined setting is set by a network administrator at a graphical user interface (GUI) associated with the computing network.

19. The system of claim 15, wherein the number of fragmented IP packets assembled into the coalesced IP packet corresponds to historical information of one or more coalesced IP packets previously assembled in the computing network, and a number of fragmented IP packets previously assembled into each of the one or more coalesced IP packets include the same source and destination addresses.

20. The system of claim 19, wherein the historical information corresponds to at least one of an average amount of bytes in a set compressed coalesced IP packets previously assembled from the fragmented IP packets, and the fragmented IP packets are associated with at least one of an audio stream or a video stream.