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ARP packet processing method, communication system and device

  • US 9,148,374 B2
  • Filed: 08/19/2013
  • Issued: 09/29/2015
  • Est. Priority Date: 07/20/2007
  • Status: Active Grant
First Claim
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1. An Address Resolution Protocol (ARP) packet processing method performed by a network device, comprising:

  • receiving, by a forwarding plane processor of the network device, an ARP packet;

    determining, by the forwarding plane processor, whether the ARP packet is an ARP response;

    reporting, by the forwarding plane processor, the ARP response to a control plane processor of the network device when an entry corresponding to the ARP response is found in a local ARP table of the forwarding plane processor and a reporting parameter in the entry corresponding to the ARP response indicates permission to report the ARP response to the control plane, wherein the local ARP table is communicated to the forwarding plane processor of the network device by the control plane processor of the network device.

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