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  • Patent number: 8204976
    Abstract: A method and apparatus for serving content requests using global and local load balancing techniques is provided. Web site content is cached using two or more point of presences (POPs), wherein each POP has at least one DNS server. Each DNS server is associated with the same anycast IP address. A domain name resolution request is transmitted to the POP in closest network proximity for resolution based on the anycast IP address. Once the domain name resolution request is received at a particular POP, local load balancing techniques are performed to dynamically select the appropriate Web server at the POP for use in resolving the domain name resolution request. Approaches are described for handling bursts of traffic at a particular POP, security, and recovering from the failure of various components of the system.
    Type: Grant
    Filed: January 26, 2011
    Date of Patent: June 19, 2012
    Assignee: Akamai Technologies, Inc.
    Inventors: Eric Sven-Johan Swildens, Zaide Liu, Richard David Day
  • Patent number: 8612564
    Abstract: A method and apparatus for serving content requests using global and local load balancing techniques is provided. Web site content is cached using two or more point of presences (POPs), wherein each POP has at least one DNS server. Each DNS server is associated with the same anycast IP address. A domain name resolution request is transmitted to the POP in closest network proximity for resolution based on the anycast IP address. Once the domain name resolution request is received at a particular POP, local load balancing techniques are performed to dynamically select the appropriate Web server at the POP for use in resolving the domain name resolution request. Approaches are described for handling bursts of traffic at a particular POP, security, and recovering from the failure of various components of the system.
    Type: Grant
    Filed: January 18, 2012
    Date of Patent: December 17, 2013
    Assignee: Akamai Technologies, Inc.
    Inventors: Eric Sven-Johan Swildens, Zaide Liu, Richard David Day
  • Patent number: 7904541
    Abstract: A method and apparatus for serving content requests using global and local load balancing techniques is provided. Web site content is cached using two or more point of presences (POPs), wherein each POP has at least one DNS server. Each DNS server is associated with the same anycast IP address. A domain name resolution request is transmitted to the POP in closest network proximity for resolution based on the anycast IP address. Once the domain name resolution request is received at a particular POP, local load balancing techniques are performed to dynamically select the appropriate Web server at the POP for use in resolving the domain name resolution request. Approaches are described for handling bursts of traffic at a particular POP, security, and recovering from the failure of various components of the system.
    Type: Grant
    Filed: August 11, 2009
    Date of Patent: March 8, 2011
    Assignee: Akamai Technologies, Inc.
    Inventors: Eric Sven-Johan Swildens, Zaide Liu, Richard David Day
  • Patent number: 7574499
    Abstract: A method and apparatus for serving content requests using global and local load balancing techniques is provided. Web site content is cached using two or more point of presences (POPs), wherein each POP has at least one DNS server. Each DNS server is associated with the same anycast IP address. A domain name resolution request is transmitted to the POP in closest network proximity for resolution based on the anycast IP address. Once the domain name resolution request is received at a particular POP, local load balancing techniques are performed to dynamically select the appropriate Web server at the POP for use in resolving the domain name resolution request. Approaches are described for handling bursts of traffic at a particular POP, security, and recovering from the failure of various components of the system.
    Type: Grant
    Filed: January 19, 2005
    Date of Patent: August 11, 2009
    Assignee: Akamai Technologies, Inc.
    Inventors: Eric Sven-Johan Swildens, Zaide Liu, Richard David Day