Patents by Inventor Alexander Malvsh

Alexander Malvsh has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Transparent auto-discovery of network devices logically located between a client and server
    Patent number: 8725894
    Abstract: Discovery of intermediate network devices is performed using a technique that piggybacks upon the existing standard TCP (Transport Control Protocol) “SACK” (Selective Acknowledgment) option in a SYN/ACK packet so that discovery information may be shared between pair-wise-deployed peer intermediate devices when a TCP/IP connection (Transport Control Protocol/Internet Protocol) is first established between network endpoints using a conventional three-way handshake. Use of the SACK option is combined with another technique which comprises modifying the original 16-bit value of the TCP receive window size to a special arbitrary value to mark a SYN packet as being generated by a first peer device. The marked SYN when received by the second peer device triggers that device's discovery information to be piggybacked in the SACK option of the SYN/ACK packet. The first device then piggybacks its discovery information in the SACK option of the ACK packet which completes the three-way handshake.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: May 13, 2014
    Assignee: Microsoft Corporation
    Inventors: Murari Sridharan, Deepak Bansal, Eran Yariv, Ronen Barenboim, Maxim Stepin, Alexander Malvsh
  • TRANSPARENT AUTO-DISCOVERY OF NETWORK DEVICES LOGICALLY LOCATED BETWEEN A CLIENT AND SERVER
    Publication number: 20130013805
    Abstract: Discovery of intermediate network devices is performed using a technique that piggybacks upon the existing standard TCP (Transport Control Protocol) “SACK” (Selective Acknowledgment) option in a SYN/ACK packet so that discovery information may be shared between pair-wise-deployed peer intermediate devices when a TCP/IP connection (Transport Control Protocol/Internet Protocol) is first established between network endpoints using a conventional three-way handshake. Use of the SACK option is combined with another technique which comprises modifying the original 16-bit value of the TCP receive window size to a special arbitrary value to mark a SYN packet as being generated by a first peer device. The marked SYN when received by the second peer device triggers that device's discovery information to be piggybacked in the SACK option of the SYN/ACK packet. The first device then piggybacks its discovery information in the SACK option of the ACK packet which completes the three-way handshake.
    Type: Application
    Filed: September 14, 2012
    Publication date: January 10, 2013
    Applicant: MICROSOFT CORPORATION
    Inventors: Murari Sridharan, Deepak Bansal, Eran Yariv, Ronen Barenboim, Maxim Stepin, Alexander Malvsh
  • Transparent auto-discovery of network devices logically located between a client and server
    Patent number: 8335858
    Abstract: Discovery of intermediate network devices is performed using a technique that piggybacks upon the existing standard TCP (Transport Control Protocol) “SACK” (Selective Acknowledgment) option in a SYN/ACK packet so that discovery information may be shared between pair-wise-deployed peer intermediate devices when a TCP/IP connection (Transport Control Protocol/Internet Protocol) is first established between network endpoints using a conventional three-way handshake. Use of the SACK option is combined with another technique which comprises modifying the original 16-bit value of the TCP receive window size to a special arbitrary value to mark a SYN packet as being generated by a first peer device. The marked SYN when received by the second peer device triggers that device's discovery information to be piggybacked in the SACK option of the SYN/ACK packet. The first device then piggybacks its discovery information in the SACK option of the ACK packet which completes the three-way handshake.
    Type: Grant
    Filed: June 27, 2011
    Date of Patent: December 18, 2012
    Assignee: Microsoft Corporation
    Inventors: Murari Sridharan, Deepak Bansal, Eran Yariv, Ronen Barenboim, Maxim Stepin, Alexander Malvsh
  • TRANSPARENT AUTO-DISCOVERY OF NETWORK DEVICES LOGICALLY LOCATED BETWEEN A CLIENT AND SERVER
    Publication number: 20110252281
    Abstract: Discovery of intermediate network devices is performed using a technique that piggybacks upon the existing standard TCP (Transport Control Protocol) “SACK” (Selective Acknowledgment) option in a SYN/ACK packet so that discovery information may be shared between pair-wise-deployed peer intermediate devices when a TCP/IP connection (Transport Control Protocol/Internet Protocol) is first established between network endpoints using a conventional three-way handshake. Use of the SACK option is combined with another technique which comprises modifying the original 16-bit value of the TCP receive window size to a special arbitrary value to mark a SYN packet as being generated by a first peer device. The marked SYN when received by the second peer device triggers that device's discovery information to be piggybacked in the SACK option of the SYN/ACK packet. The first device then piggybacks its discovery information in the SACK option of the ACK packet which completes the three-way handshake.
    Type: Application
    Filed: June 27, 2011
    Publication date: October 13, 2011
    Applicant: MICROSOFT CORPORATION
    Inventors: Murari Sridharan, Deepak Bansal, Eran Yariv, Ronen Barenboim, Maxim Stepin, Alexander Malvsh