Patents by Inventor Vasileios Pappas

Vasileios Pappas 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).

  • Patent number: 10097453
    Abstract: Methods for performing retransmission of data packets over a network. A node receives a data packet with a source and a destination address. The data packet is sent along a network path to the destination address, and information associated with the data packet is sent to a controller node that is independent of the network path. A controller receives information associated with a data packet from any forwarder node within a plurality of forwarder nodes each monitoring communications along separate communications paths. An indication of a receipt acknowledgement for the data packet is received from a second forwarder node that is separate from the first forwarder node and the controller node. The receipt acknowledgement is correlated with the data packet and based on the correlating, data associated with retransmission processing of the data packet is deleted.
    Type: Grant
    Filed: June 25, 2015
    Date of Patent: October 9, 2018
    Assignee: International Business Machines Corporation
    Inventors: Thai Franck Le, Erich M. Nahum, Vasileios Pappas, Dinesh Verma
  • Patent number: 10097510
    Abstract: The present disclosure relates generally to the field of identifying network flows (e.g., IP flows) under network address translation. In various examples, identifying network flows (e.g., IP flows) under network address translation may be implemented in the form of methods and/or algorithms.
    Type: Grant
    Filed: August 14, 2013
    Date of Patent: October 9, 2018
    Assignee: International Business Machines Corporation
    Inventors: Dakshi Agrawal, Bong Jun Ko, Thai Franck Le, Robert B. Nicholson, Vasileios Pappas, Dinesh C. Verma
  • Patent number: 10084696
    Abstract: Systems, methods and computer program products for aliasing of named data objects (in named data networks) and entities for named data networks (e.g., named graphs for named data networks). In various examples, aliasing of named data objects may be implemented in one or more named data networks in the form of systems, methods and/or algorithms. In other examples, named graphs may be implemented in one or more named data networks in the form of systems, methods and/or algorithms.
    Type: Grant
    Filed: July 19, 2016
    Date of Patent: September 25, 2018
    Assignee: International Business Machines Corporation
    Inventors: Raheleh B. Dilmaghani, Bong Jun Ko, Kang-Won Lee, Vasileios Pappas, Ramya Raghavendra, Yang Song
  • Patent number: 10069727
    Abstract: Systems and methods for performing retransmission of data packets over a network. A node receives a data packet with a source and a destination address. The data packet is sent along a network path to the destination address, and information associated with the data packet is sent to a controller node that is independent of the network path. A controller receives information associated with a data packet from any forwarder node within a plurality of forwarder nodes each monitoring communications along separate communications paths. An indication of a receipt acknowledgement for the data packet is received from a second forwarder node that is separate from the first forwarder node and the controller node. The receipt acknowledgement is correlated with the data packet and based on the correlating, data associated with retransmission processing of the data packet is deleted.
    Type: Grant
    Filed: April 17, 2015
    Date of Patent: September 4, 2018
    Assignee: International Business Machines Corporation
    Inventors: Thai Franck Le, Erich M. Nahum, Vasileios Pappas, Dinesh Verma
  • Patent number: 10021028
    Abstract: A method and system are provided for controlling a volume of incoming traffic into a network having a plurality of ingress routers. The method includes monitoring respective loads of the plurality of ingress routers. The method further includes selecting a particular one of the plurality of ingress routers to receive future incoming traffic based on at least the respective loads of the plurality of ingress routers. The method also includes creating a mapping between an internal source IP address and a client IP address. The internal source IP address relates to the particular one of the plurality of routers. The client IP address is for a client device accessing the Internet through the network. The method additionally includes rewriting a destination IP address of the incoming traffic based on the mapping. At least the monitoring, selecting, and creating steps are performed by a controller.
    Type: Grant
    Filed: June 16, 2014
    Date of Patent: July 10, 2018
    Assignee: International Business Machines Corporation
    Inventors: Franck Le, Vasileios Pappas, Mudhakar Srivatsa, Dinesh C. Verma
  • Patent number: 9800542
    Abstract: The present disclosure relates generally to the field of identifying network flows (e.g., IP flows) under network address translation. In various examples, identifying network flows (e.g., IP flows) under network address translation may be implemented in the form of systems and/or algorithms.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: October 24, 2017
    Assignee: International Business Machines Corporation
    Inventors: Dakshi Agrawal, Bong Jun Ko, Thai Franck Le, Robert B. Nicholson, Vasileios Pappas, Dinesh C. Verma
  • Publication number: 20170289838
    Abstract: A method includes positioning a proxy between a client and a server; the proxy receiving the client's Transmission Control Protocol (TCP) communications intended for establishing a communication connection to the server; the proxy initiating a TCP communication with the server after receiving the client's TCP; and the proxy determining a TCP congestion control algorithm based upon identifying information of the received client's TCP and on properties of the sever to provide optimum communications as a communication proxy between the client and the server.
    Type: Application
    Filed: March 30, 2016
    Publication date: October 5, 2017
    Inventors: Dakshi Agrawal, Erich M. Nahum, Vasileios Pappas, Franck Le Thai, Maroun Touma, Dinesh C. Verma
  • Patent number: 9781215
    Abstract: The present disclosure relates generally to the field of migration (e.g., seamless migration) of a network connection under mobility (e.g., host mobility). In various examples, migration (e.g., seamless migration) of a network connection under mobility (e.g., host mobility) may be implemented in the form of methods and/or algorithms.
    Type: Grant
    Filed: January 4, 2017
    Date of Patent: October 3, 2017
    Assignee: International Business Machines Corporation
    Inventors: Seraphin B. Calo, Raheleh B. Dilmaghani, Bong Jun Ko, Kang-Won Lee, Vasileios Pappas, Ramya Raghavendra, Yang Song, Dinesh C. Verma
  • Patent number: 9749403
    Abstract: A method, system and computer program product for managing content distribution in a mobile communications environment. The communications environment includes a core network and a multitude of end-user devices. In one embodiment, the method comprises downloading content from the core network to the end-user devices; and maintaining a map between the end-user devices, the content downloaded to the end-user devices, and the locations of the end-user devices. When a first of the end-user devices requests a specified content, this map and one or more rules are used to identify a second of the end-user devices having the specified content. The first of the end-user devices fetches the specified content from this identified second of the end-user devices. In one embodiment, object location descriptors embedded in the content are rewritten when the content is downloaded to the end-user devices.
    Type: Grant
    Filed: February 10, 2012
    Date of Patent: August 29, 2017
    Assignee: International Business Machines Corporation
    Inventors: Dakshi Agrawal, Sihyung Lee, Vasileios Pappas, Mudhakar Srivatsa
  • Patent number: 9742669
    Abstract: A method for aliasing of named data objects (in named data networks) and entities for named data networks (e.g., named graphs for named data networks). In various examples, aliasing of named data objects may be implemented in one or more named data networks in the form of systems, methods and/or algorithms. In other examples, named graphs may be implemented in one or more named data networks in the form of systems, methods and/or algorithms.
    Type: Grant
    Filed: July 26, 2016
    Date of Patent: August 22, 2017
    Assignee: International Business Machines Corporation
    Inventors: Raheleh B. Dilmaghani, Bong Jun Ko, Kang-Won Lee, Vasileios Pappas, Ramya Raghavendra, Yang Song
  • Publication number: 20170222882
    Abstract: Methods for removing a middlebox from a network connection include determining a degree of mismatch between a sequence number in a first connection between the middlebox and a client and a sequence number in a second connection between the middlebox and a server, delaying acknowledgment signals from the middlebox on a connection to decrease the degree of mismatch, and establishing a direct connection between the client and the server without mediation by the middlebox when the degree of mismatch is zero.
    Type: Application
    Filed: April 12, 2017
    Publication date: August 3, 2017
    Inventors: DAKSHI AGRAWAL, THAI V. LE, ERICH M. NAHUM, VASILEIOS PAPPAS
  • Patent number: 9720724
    Abstract: A system and method for instantiation of a virtual machine (VM) in a datacenter includes providing a network appliance in a location for listening to management information traffic. Indices are created for data center images in the network appliance. VM instantiation requests are intercepted in the network appliance. Locations from which blocks for the VM should be fetched based upon network cost are determined. VM image blocks are populated from the locations.
    Type: Grant
    Filed: February 24, 2016
    Date of Patent: August 1, 2017
    Assignee: International Business Machines Corporation
    Inventors: Dakshi Agrawal, Vasileios Pappas
  • Patent number: 9674044
    Abstract: Methods for inserting a middlebox into a network connection include monitoring network state information in a connection between a client and a server. When the connection is idle, a connection entry is created for each device and is initialized using state information gathered by monitoring the network connection. Redirection of the network connection is activated between the client and the server such that the middlebox mediates the connection. Methods for removing a middlebox from a network connection include determining a degree of mismatch between a sequence number in a first connection between the middlebox and a client and a sequence number in a second connection between the middlebox and a server, delaying acknowledgment signals from the middlebox on a connection to decrease the degree of mismatch, and establishing a direct connection between the client and the server without mediation by the middlebox when the degree of mismatch is zero.
    Type: Grant
    Filed: August 5, 2015
    Date of Patent: June 6, 2017
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Dakshi Agrawal, Thai V. Le, Erich M. Nahum, Vasileios Pappas
  • Publication number: 20170134930
    Abstract: Various embodiments detecting wireless communication device mobility in a wireless communication network. In one embodiment, one or more Internet Protocol (IP) data packets associated with a wireless communication device are analyzed. The wireless communication device is coupled with the edge entity. A determination is made, based on the analyzing, that the wireless communication device is a newly coupled device at the edge entity. A central entity disposed within the wireless communication network is notified that the wireless communication device is currently coupled to the edge entity.
    Type: Application
    Filed: January 19, 2017
    Publication date: May 11, 2017
    Applicant: International Business Machines Corporation
    Inventors: Dakshi AGRAWAL, Bongjun KO, Franck LE, Robert B. NICHOLSON, Vasileios PAPPAS, Dinesh VERMA
  • Publication number: 20170118296
    Abstract: The present disclosure relates generally to the field of migration (e.g., seamless migration) of a network connection under mobility (e.g., host mobility). In various examples, migration (e.g., seamless migration) of a network connection under mobility (e.g., host mobility) may be implemented in the form of methods and/or algorithms.
    Type: Application
    Filed: January 4, 2017
    Publication date: April 27, 2017
    Inventors: Seraphin B. Calo, Raheleh B. Dilmaghani, Bong Jun Ko, Kang-Won Lee, Vasileios Pappas, Ramya Raghavendra, Yang Song, Dinesh C. Verma
  • Patent number: 9612853
    Abstract: A computer system, and computer program product monitor resource usage of a virtual machine. When a virtual machine is instantiated, resource usage of the virtual machine is monitored to form monitoring data. The monitoring is performed externally from the virtual machine. When the virtual machine is later suspended, the monitoring data is stored as metadata associated with the virtual machine.
    Type: Grant
    Filed: September 7, 2012
    Date of Patent: April 4, 2017
    Assignee: International Business Machines Corporation
    Inventors: Dakshi Agrawal, Vasileios Pappas
  • Patent number: 9614918
    Abstract: The present disclosure relates generally to the field of migration (e.g., seamless migration) of a network connection under mobility (e.g., host mobility). In various examples, migration (e.g., seamless migration) of a network connection under mobility (e.g., host mobility) may be implemented in the form of systems and/or algorithms.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: April 4, 2017
    Assignee: International Business Machines Corporation
    Inventors: Seraphin B. Calo, Raheleh B. Dilmaghani, Bong Jun Ko, Kang-Won Lee, Vasileios Pappas, Ramya Raghavendra, Yang Song, Dinesh C. Verma
  • Patent number: 9600308
    Abstract: A computer implemented method monitors resource usage of a virtual machine. When a virtual machine is instantiated, resource usage of the virtual machine is monitored to form monitoring data. The monitoring is performed externally from the virtual machine. When the virtual machine is later suspended, the monitoring data is stored as metadata associated with the virtual machine.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: March 21, 2017
    Assignee: International Business Machines Corporation
    Inventors: Dakshi Agrawal, Vasileios Pappas
  • Patent number: 9596587
    Abstract: Various embodiments detecting wireless communication device mobility in a wireless communication network. In one embodiment, one or more Internet Protocol (IP) data packets associated with a wireless communication device are analyzed. The wireless communication device is coupled with the edge entity. A determination is made, based on the analyzing, that the wireless communication device is a newly coupled device at the edge entity. A central entity disposed within the wireless communication network is notified that the wireless communication device is currently coupled to the edge entity.
    Type: Grant
    Filed: August 10, 2016
    Date of Patent: March 14, 2017
    Assignee: International Business Machines Corporation
    Inventors: Dakshi Agrawal, Bongjun Ko, Franck Le, Robert B. Nicholson, Vasileios Pappas, Dinesh Verma
  • Patent number: 9591085
    Abstract: The present disclosure relates generally to the field of migration (e.g., seamless migration) of a network connection under mobility (e.g., host mobility). In various examples, migration (e.g., seamless migration) of a network connection under mobility (e.g., host mobility) may be implemented in the form of methods and/or algorithms.
    Type: Grant
    Filed: August 22, 2013
    Date of Patent: March 7, 2017
    Assignee: International Business Machines Corporation
    Inventors: Seraphin B. Calo, Raheleh B. Dilmaghani, Bong Jun Ko, Kang-Won Lee, Vasileios Pappas, Ramya Raghavendra, Yang Song, Dinesh C. Verma