Network topology discovering method, device and system

A network topology and discovery method technology, applied in the field of network topology discovery methods, devices and systems, can solve problems such as incomplete network topology, and achieve the effect of solving incomplete network topology

Active Publication Date: 2013-09-04
BEIJING XINWANG RUIJIE NETWORK TECH CO LTD
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Problems solved by technology

[0005] The present invention provides a network topology discovery method, device and system, which are used t

Method used

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  • Network topology discovering method, device and system
  • Network topology discovering method, device and system
  • Network topology discovering method, device and system

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Embodiment Construction

[0028] figure 2 It is a flowchart of an embodiment of the method for discovering the network topology of the present invention, such as figure 2 As shown, the subject of execution in this embodiment is a device for discovering network topology, and the method is applied to a virtualized operating environment, and the virtualized operating environment includes: a host server and a physical switch, wherein the host server includes: a virtual machine, a virtual machine switches and physical NICs, the method includes:

[0029] Step 101, obtain virtualization information through a virtual machine management server, and obtain a virtual network topology according to the virtualization information.

[0030] In this embodiment, the virtualization information can be the following information: the host server and the virtual machine installed on the host server, the IP address and MAC address of the host server, the IP address and MAC address of the virtual machine, the number of phy...

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Abstract

The invention provides a network topology discovering method, device and system. The method is used in a virtualization operating environment which comprises a host server and a physical switch. The host server comprises a virtual machine, a virtual machine switch and a physical network card. The method comprises the steps that according to virtualization information which is obtained through a virtual machine management server, virtual network topology is obtained; according to an ARP table of the physical switch, an MAC address forwarding table of the physical switch and the IP, obtained through the virtual machine management server, of a management port of the host server, connection relation between the management port and a physical switch port is obtained; according to the virtual network topology, the MAC address forwarding table of the physical switch and a virtual machine MAC address in virtualization information, connection relation between the physical network card bound by the virtual machine switch correlated with the virtual machine and the physical switch port is obtained; according to the two kinds of connection relation, physical network topology is obtained.

Description

technical field [0001] The present invention relates to communication technology, in particular to a method, device and system for discovering network topology. Background technique [0002] Server virtualization is to implement a virtualized operating environment of multiple virtual machines (Virtual Machine; VM for short) on a physical server with the help of virtualization software. The software layer installed on a physical server to implement a virtualized environment is called a virtual machine monitor (Virtual Machine Monitor; VMM for short). In a virtualized operating environment, figure 1 It is a schematic diagram of the architecture of a virtual machine switch (vSwitch) solution in the prior art, such as figure 1 As shown, the VMM provides an figure 1 VM1, VM2, and VM3 in VMM) to create a virtual network card. For a vSwitch running in VMM, the virtual network card of each virtual machine corresponds to a logical port of the vSwitch, and the physical network card...

Claims

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Application Information

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IPC IPC(8): H04L12/751H04L29/12H04L45/02
Inventor 黄清霞
Owner BEIJING XINWANG RUIJIE NETWORK TECH CO LTD
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