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Method and device for allocating virtual machine IP address in software-defined network

A software-defined network and IP address technology, applied in the field of software-defined networks, can solve problems such as automatic IP address deployment, and achieve the effect of error rate control and workload reduction.

Active Publication Date: 2018-01-09
NEW H3C TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] In view of this, the present invention provides a virtual machine IP address allocation method and device in a software-defined network, which is used to solve the problem of automatic deployment of VM IP addresses in an SDN network

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  • Method and device for allocating virtual machine IP address in software-defined network
  • Method and device for allocating virtual machine IP address in software-defined network
  • Method and device for allocating virtual machine IP address in software-defined network

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Embodiment Construction

[0050] The technical solutions of the present invention will be further elaborated below in conjunction with the accompanying drawings and specific embodiments.

[0051] In order to realize the automatic deployment of the IP address of the VM, the embodiment of the present invention deploys the DHCP Client on the VM, and deploys the DHCP Server on the controller; when implementing VM deployment during the SDN configuration process, the controller and the VM are exchanged via SDN The device realizes that the controller automatically allocates an IP address for the VM deployed in the SDN based on the interaction of the Dynamic Host Configuration Protocol (Dynamic Host Configuration Protocol, DHCP) message.

[0052] Among them, DHCP is a network protocol of the local area network. DHCP is based on the working mode of Client / Server. The basic working process of DHCP is as follows: figure 2 As shown, it mainly includes:

[0053] Step 201, the host client (Client) sends a DHCP Dis...

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Abstract

The invention discloses a virtual machine IP address allocation method and device in a software-defined network. The corresponding relationship between the virtual port of the virtual machine VM and the virtual machine MAC address and IP address is configured on the controller. After the SDN switching device is started, it receives The controller sends the dynamic host configuration protocol DHCP message sent by the VM to the flow table of the controller; when the SDN switching device receives the DHCP message sent by the VM, it matches the flow table and matches the message sent by the VM Send the DHCP message to the controller; when the SDN switching device receives the DHCP message sent by the controller to the SDN switching device, forward the DHCP message sent by the controller to the VM; The DHCP message sent by the controller includes the IP address allocated by the controller to the virtual machine according to the configured correspondence between the virtual port and the virtual machine MAC address and IP address.

Description

technical field [0001] The present invention relates to the field of software-defined networks, in particular to a method and device for allocating virtual machine IP addresses in a software-defined network. Background technique [0002] Software Defined Networks (Software Defined Networks, SDN) is a new network innovation architecture, its core technology is to realize the flexible control of network traffic by separating the control plane of network equipment from the data plane, and provide core network and application Innovation provides a good platform. In a traditional network, each switch or router needs to independently calculate the forwarding path of the message, while in the SDN network, the network device is only responsible for simple data forwarding, and the control part is independently a centralized controller, responsible for Different business logic and forwarding methods are used for control. An open and programmable interface is provided between the con...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/12
CPCG06F9/45533H04L61/5014
Inventor 林涛温涛任维春程行峰
Owner NEW H3C TECH CO LTD
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