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Methods, systems, and computer readable media for stateless load balancing of network traffic flows

  • US 8,499,093 B2
  • Filed: 05/24/2010
  • Issued: 07/30/2013
  • Est. Priority Date: 05/14/2010
  • Status: Active Grant
First Claim
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1. A method for performing stateless load balancing of network traffic flows, the method comprising:

  • at a layer 3 packet forwarding and layer 2 switching device;

    responding to address resolution protocol (ARP) requests from clients, the ARP requests including a virtual IP (VIP) address shared by the device and a plurality of servers coupled to the device, with the medium access control (MAC) address of the device;

    receiving, from the clients, packets addressed to the VIP address and having the MAC address of the device; and

    load sharing the packets among the servers using a layer 3 forwarding operation that appears to the clients as a layer 2 switching operation by performing the layer 3 forwarding operation based on the MAC address received from the client.

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