Patents by Inventor Cristian Florin F. Dumitrescu

Cristian Florin F. Dumitrescu 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).

  • Packet flow classification
    Patent number: 10455063
    Abstract: Technologies for packet flow classification on a computing device include a hash table including a plurality of hash table buckets in which each hash table bucket maps a plurality of keys to corresponding traffic flows. The computing device performs packet flow classification on received data packets, where the packet flow classification includes a plurality of sequential classification stages and fetch classification operations and non-fetch classification operations are performed in each classification stage. The fetch classification operations include to prefetch a key of a first received data packet based on a set of packet fields of the first received data packet for use during a subsequent classification stage, prefetch a hash table bucket from the hash table based on a key signature of the prefetched key for use during another subsequent classification stage, and prefetch a traffic flow to be applied to the first received data packet based on the prefetched hash table bucket and the prefetched key.
    Type: Grant
    Filed: August 15, 2017
    Date of Patent: October 22, 2019
    Assignee: Intel Corporation
    Inventors: Cristian Florin F. Dumitrescu, Namakkal N. Venkatesan, Pierre Laurent, Bruce Richardson
  • PACKET FLOW CLASSIFICATION
    Publication number: 20180103129
    Abstract: Technologies for packet flow classification on a computing device include a hash table including a plurality of hash table buckets in which each hash table bucket maps a plurality of keys to corresponding traffic flows. The computing device performs packet flow classification on received data packets, where the packet flow classification includes a plurality of sequential classification stages and fetch classification operations and non-fetch classification operations are performed in each classification stage. The fetch classification operations include to prefetch a key of a first received data packet based on a set of packet fields of the first received data packet for use during a subsequent classification stage, prefetch a hash table bucket from the hash table based on a key signature of the prefetched key for use during another subsequent classification stage, and prefetch a traffic flow to be applied to the first received data packet based on the prefetched hash table bucket and the prefetched key.
    Type: Application
    Filed: August 15, 2017
    Publication date: April 12, 2018
    Inventors: Cristian Florin F. Dumitrescu, Namakkal N. Venkatesan, Pierre Laurent, Bruce Richardson
  • Packet flow classification
    Patent number: 9769290
    Abstract: Technologies for packet flow classification on a computing device include a hash table including a plurality of hash table buckets in which each hash table bucket maps a plurality of keys to corresponding traffic flows. The computing device performs packet flow classification on received data packets, where the packet flow classification includes a plurality of sequential classification stages and fetch classification operations and non-fetch classification operations are performed in each classification stage. The fetch classification operations include to prefetch a key of a first received data packet based on a set of packet fields of the first received data packet for use during a subsequent classification stage, prefetch a hash table bucket from the hash table based on a key signature of the prefetched key for use during another subsequent classification stage, and prefetch a traffic flow to be applied to the first received data packet based on the prefetched hash table bucket and the prefetched key.
    Type: Grant
    Filed: May 23, 2014
    Date of Patent: September 19, 2017
    Assignee: Intel Corporation
    Inventors: Cristian Florin F. Dumitrescu, Namakkal N. Venkatesan, Pierre Laurent, Bruce Richardson
  • PACKET FLOW CLASSIFICATION
    Publication number: 20150341473
    Abstract: Technologies for packet flow classification on a computing device include a hash table including a plurality of hash table buckets in which each hash table bucket maps a plurality of keys to corresponding traffic flows. The computing device performs packet flow classification on received data packets, where the packet flow classification includes a plurality of sequential classification stages and fetch classification operations and non-fetch classification operations are performed in each classification stage. The fetch classification operations include to prefetch a key of a first received data packet based on a set of packet fields of the first received data packet for use during a subsequent classification stage, prefetch a hash table bucket from the hash table based on a key signature of the prefetched key for use during another subsequent classification stage, and prefetch a traffic flow to be applied to the first received data packet based on the prefetched hash table bucket and the prefetched key.
    Type: Application
    Filed: May 23, 2014
    Publication date: November 26, 2015
    Inventors: Cristian Florin F. Dumitrescu, Namakkal N. Venkatesan, Pierre Laurent, Bruce Richardson