ARP packet processing method, communication system and device

摘要

An Address Resolution Protocol (ARP) packet processing method. a communication system and a device are disclosed. The method includes: receiving an ARP packet, and judging the type of the ARP packet; when the ARP packet is an ARP request, responding to the ARP request if an entry corresponding to the ARP request is found in a local ARP table; and when the ARP packet is an ARP response. reporting the ARP response if an entry corresponding to the ARP response is found in the local ARP table and a reporting parameter in the entry indicates permission of reporting; or discarding the ARP response if no entry corresponding to the ARP response is found in the ARP table.

主权项

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.