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Ruled-based network traffic interception and distribution scheme

  • US 10,728,176 B2
  • Filed: 08/31/2018
  • Issued: 07/28/2020
  • Est. Priority Date: 12/20/2013
  • Status: Active Grant
First Claim
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1. A network device, comprising:

  • a plurality of virtual local area networks (VLANs), wherein each of the plurality of VLANs is associated with one or more ports;

    one or more processors; and

    a memory coupled to the one or more processors, wherein the memory includes instructions that, when executed by the one or more processors, cause at least one processor from the one or more processors to perform operations comprising;

    determining a class for a packet received at the network device, wherein the class is determined using a first attribute of the packet;

    selecting a VLAN from the plurality of VLANs based on the class, wherein the selected VLAN comprises multiple groups of two or more ports;

    generating, based on a second attribute of the packet, a first identification value for the packet;

    accessing a data structure that comprises a plurality of second identification values, wherein each of the plurality of second identification values is associated with a respective subset of ports of the selected VLAN and wherein the plurality of second identification values are generated using a hash function;

    selecting, from the data structure, a subset of ports associated with the first identification value, wherein the selected subset of ports comprises a port from each of the multiple groups of two or more ports; and

    sending a copy of the packet through each port from the selected subset of ports.

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