Patents by Inventor Chitrak K. Ojha

Chitrak K. Ojha 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).

  • TCP proxying of network sessions mid-flow
    Patent number: 9438699
    Abstract: In one example, an intermediate network device sends packets that advertise a transmission control protocol (TCP) window size of zero bytes to a client device and a server device. The device, after sending the packets, receives a first zero-window probe packet from the client device including data representing a first current sequence number for a client-to-server packet flow of an established network session, and a second zero-window probe packet from the server device including data representing a second current sequence number for a server-to-client packet flow of the network session. The device also initializes a TCP state based on the first and second current sequence numbers, and acts as a TCP proxy for packets following the first zero-window probe packet of the client-to-server packet flow based on the TCP state and packets following the second zero-window probe packet of the server-to-client packet flow based on the TCP state.
    Type: Grant
    Filed: August 3, 2015
    Date of Patent: September 6, 2016
    Assignee: Juniper Networks, Inc.
    Inventors: Nikhil G. Shetty, Chitrak K. Ojha, Rohini Kasturi, Vijay S. Rajaram, Gopi Krishna, Venkatesh Badakere Ramachandra
  • TCP proxying of network sessions mid-flow
    Patent number: 9100236
    Abstract: In one example, an intermediate network device sends packets that advertise a transmission control protocol (TCP) window size of zero bytes to a client device and a server device. The device, after sending the packets, receives a first zero-window probe packet from the client device including data representing a first current sequence number for a client-to-server packet flow of an established network session, and a second zero-window probe packet from the server device including data representing a second current sequence number for a server-to-client packet flow of the network session. The device also initializes a TCP state based on the first and second current sequence numbers, and acts as a TCP proxy for packets following the first zero-window probe packet of the client-to-server packet flow based on the TCP state and packets following the second zero-window probe packet of the server-to-client packet flow based on the TCP state.
    Type: Grant
    Filed: September 30, 2012
    Date of Patent: August 4, 2015
    Assignee: Juniper Networks, Inc.
    Inventors: Nikhil G. Shetty, Chitrak K. Ojha, Rohini Kasturi, Vijay S. Rajaram, Gopi Krishna, Venkatesh Badakere Ramachandra