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Message processing method and system for software-defined network

A software-defined network and message processing technology, which is applied in the transmission system, digital transmission system, data exchange network, etc., can solve the problem of increasing the complexity of the source switch and the maintenance cost of the ARP flow table of the source switch

Active Publication Date: 2014-07-02
ZTE CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the source switch uses flow table matching to respond to ARP request packets, it is necessary to maintain many ARP flow tables on the source switch, and these ARP flow tables need to be synchronized and updated with the flow table on the controller. operation, which increases the complexity of the source switch and the maintenance overhead of the source switch for the ARP flow table

Method used

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  • Message processing method and system for software-defined network
  • Message processing method and system for software-defined network
  • Message processing method and system for software-defined network

Examples

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Embodiment 1

[0060] This example image 3 As shown, VM1 is a source virtual machine, and VM2 is a destination virtual machine, implementing a packet processing method for a software-defined network, including:

[0061] Step 201: After the source switch is powered on, it establishes a connection with the controller. After the connection is established, the controller sends an ARP flow table for ARP response to the source switch;

[0062] Step 202: VM1 initiates communication with VM2, and sends an ARP request message. In the ARP request message, the destination IP address is the IP address of VM2, and the destination MAC address is the broadcast address;

[0063] Step 203: After the source switch receives the ARP request message of VM1, it performs local flow table matching to match the ARP flow table issued by the controller, and the source switch replies with an ARP response message according to the matched ARP flow table;

[0064] Step 204: VM1 uses the source MAC address in the receive...

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PUM

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Abstract

The invention discloses a message processing method for a software-defined network. A controller issues an ARP flow table for ARP responses to a source interchanger; the source interchanger returns ARP response messages to a source virtual machine according to the ARP flow table; the source virtual machine sends service messages to the source interchanger; the source interchanger uploads the service messages to the controller; the controller issues an MAC address service flow table with a target MAC address as a target interchanger to other interchangers excepts the target interchanger; a service flow table with the target MAC address as the MAC address of the target virtual machine is issued to the target interchanger; the source interchanger forwards the service messages according to the service flow table; the target interchanger forwards the service messages to the target virtual machine. The invention further discloses a message processing system for the software-defined network. Through the scheme of the message processing method and system for the software-defined network, maintenance expenses on the ARP flow table by the source interchanger can be reduced.

Description

technical field [0001] The present invention relates to message processing technology, in particular to a message processing method and system of a software-defined network (SDN). Background technique [0002] In an SDN network, when the source switch (switch) receives an Address Resolution Protocol (ARP, Address Resolution Protocol) request packet, it can send it to the controller (controller) for processing as needed, or the source switch can directly reply with an ARP response packet. arts. If the source switch uses flow table matching to respond to ARP request packets, it is necessary to maintain many ARP flow tables on the source switch, and these ARP flow tables need to be synchronized and updated with the flow table on the controller. All these increase the complexity of the source switch and the maintenance overhead of the source switch for the ARP flow table. Contents of the invention [0003] In view of this, the main purpose of the present invention is to prov...

Claims

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Application Information

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IPC IPC(8): H04L12/757H04L29/12
Inventor 孙凌何文娟
Owner ZTE CORP
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