Patents by Inventor Eugene Nechamkin

Eugene Nechamkin 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).

  • Fault tolerance approaches for DNS server failures
    Patent number: 8935428
    Abstract: Techniques are provided for handling failures of DNS (domain name system) servers to respond to DNS queries. A DNS resolver is configured to resolve domain names, and includes a time-to-live (TTL)-based cache, a negative cache, and a long term store cache. The TTL-based cache is configured to temporarily store domain names with resolved IP addresses. The negative cache is configured to store negative entries that include information indicating domain names that were failed to be resolved. The long term store cache is configured to store domain names with resolved IP address for an indefinite time period. The caches are accessed in a manner that enables fewer DNS query retries to be performed when a DNS server is non-responsive, to reduce delays and network traffic. Furthermore, the DNS resolver may reduce a number of DNS queries performed the longer the DNS server stays non-responsive.
    Type: Grant
    Filed: October 29, 2009
    Date of Patent: January 13, 2015
    Assignee: Broadcom Corporation
    Inventors: Sam Anderson, Dragan Djurovic, Eugene Nechamkin, Jamshid Shoghli
  • FAULT TOLERANCE APPROACHES FOR DNS SERVER FAILURES
    Publication number: 20100332680
    Abstract: Techniques are provided for handling failures of DNS (domain name system) servers to respond to DNS queries. A DNS resolver is configured to resolve domain names, and includes a time-to-live (TTL)-based cache, a negative cache, and a long term store cache. The TTL-based cache is configured to temporarily store domain names with resolved IP addresses. The negative cache is configured to store negative entries that include information indicating domain names that were failed to be resolved. The long term store cache is configured to store domain names with resolved IP address for an indefinite time period. The caches are accessed in a manner that enables fewer DNS query retries to be performed when a DNS server is non-responsive, to reduce delays and network traffic. Furthermore, the DNS resolver may reduce a number of DNS queries performed the longer the DNS server stays non-responsive.
    Type: Application
    Filed: October 29, 2009
    Publication date: December 30, 2010
    Applicant: BROADCOM CORPORATION
    Inventors: Sam Anderson, Dragan Djurovic, Eugene Nechamkin, Jamshid Shoghli