Address resolution protocol (ARP) message forwarding method, exchanger and controller

An address resolution protocol and message forwarding technology, which is applied in switches and controllers, and in the field of address resolution protocol ARP message forwarding methods, can solve the problems of reducing network efficiency and occupying bandwidth, and achieve the effect of improving network efficiency and saving network bandwidth

Active Publication Date: 2013-02-20
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the prior art, after a switch or router receives an ARP request, it will forward the ARP request to all devices connected to it, thus causing a broadcast storm, occupying bandwidth, and reducing network efficiency

Method used

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  • Address resolution protocol (ARP) message forwarding method, exchanger and controller
  • Address resolution protocol (ARP) message forwarding method, exchanger and controller
  • Address resolution protocol (ARP) message forwarding method, exchanger and controller

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Embodiment Construction

[0077] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0078] The embodiment of the present invention is applicable to various types of existing network architectures, for example: a network architecture based on software-defined networking (Software-Defined Networking, hereinafter abbreviated as SDN), the core technology of which is the OpenFlow network switching model, This model supports users...

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Abstract

An embodiment of the invention provides an address resolution protocol (ARP) message forwarding method, an exchanger and a controller. The ARP message forwarding method includes: a first exchanger receives ARP messages; the first exchanger sends the ARP messages to the controller in the network to lead the controllers to construct response messages containing forwarding port messages according to the ARP messages; the first exchanger receives the response messages sent by the controller; and the first exchanger forwards the response messages to a corresponding port according to the forwarding port messages. The controller provides ARP service for a main machine of the network managed by the controller, and therefore network efficiency can be improved and network bandwidth can be saved.

Description

technical field [0001] The embodiment of the present invention relates to the technical field of communication, and in particular to an address resolution protocol (ARP) message forwarding method, a switch and a controller. Background technique [0002] At present, with the development and growth of Internet technology, the scale of the Internet is becoming larger and larger, the applications carried by it are complex, and the Internet has become fragile and dull, and the problem of Internet controllability has followed. [0003] Address Resolution Protocol (Address Resolution Protocol, hereinafter abbreviated as ARP) is a Transmission Control Protocol / Internet Protocol (Transmission Control Protocol / Internet Protocol, hereinafter abbreviated as TCP / IP) for obtaining a physical address. The source node acquires the Media Access Control (Media Access Control, hereinafter abbreviated as MAC) address of the destination node by broadcasting an ARP request, so as to send data pac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/12H04L12/937
Inventor 陈琳
Owner HUAWEI TECH CO LTD
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