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Method for solving cross-OVERLAY three-layer mutual access of hosts between smooth migration centers

A host, smooth technology, applied in the direction of network interconnection, software simulation/interpretation/simulation, program control design, etc., can solve the problems of ARP connection failure, failure of mutual access between hosts between centers, etc., to achieve the effect of normal forwarding

Inactive Publication Date: 2018-11-16
FUJIAN JIANGXIA UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, the purpose of the present invention is to provide a method for solving the three-layer mutual access of hosts between smooth migration centers across OVERLAY, in order to solve the problem that the old data center VLAN gateway fails to connect to the new data center VXLAN network ARP, and the center Inter-host cross-overlay three-layer mutual access failure problem

Method used

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  • Method for solving cross-OVERLAY three-layer mutual access of hosts between smooth migration centers
  • Method for solving cross-OVERLAY three-layer mutual access of hosts between smooth migration centers

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Embodiment 1

[0023] Please refer to figure 1 , the present invention provides a method to solve the problem of smooth migration between hosts across OVERLAY three layers:

[0024] 1) Taking DC1 as an example, on the smooth access device TOR1, only tunnels with VXLAN L3 VXLAN GW are created, no tunnels are created between TOR1 and TOR3, and between TOR1 and TOR4, and the VTEP in Cloud-DC Create tunnels between or between two.

[0025] 2) On the core, set the type of tunnel between VTEPs, and define the tunnel built with TOR1 as an external tunnel.

[0026] 3) According to the configuration, call the underlying driver to set the tunnel attribute PW=0, so that the OVERLAY Layer 2 forwarding behavior with the external tunnel is as follows: Table 1:

[0027] SVP

DVP

OVERLAY layer 2 interoperability

Network side PW=0

Network side PW=1

Forward

Network side PW=1

Network side PW=0

Forward

[0028] 4) After the VXLAN L3 GW detects the VLAN gatew...

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Abstract

The invention relates to a method for solving cross-OVERLAY three-layer mutual access of hosts between smooth migration centers. The method specifically comprises the following steps: setting an original data center and a cloud data center in the same two-layer network by design; packaging two-layer network data of the original data center to a UDP through the VXLAN technology to obtain a data packet in a two-layer network data MAC-in-UDP package format; dividing tunnels between the VTEPs into tunnels in the centers and tunnels at the outside of the centers through VXLAN L3 GW, setting a horizontal segmentation register of a chip tunnel on a VXLAN L3 GW device, and setting the attributes of the tunnels SVP and DVP at the outside of the centers as 0; canceling the tunnel on the VXLAN L2 GWdevice between the centers, and canceling a static gateway MAC of the VXLAN L2 GW; transmitting a data packet to the cloud data center by using the IP interface transmission of the VTEP device; and de-packaging, by the cloud data center, the data packet by using the VTEP to achieve the data migration between the original data center and the cloud data center. The problems that the old data centerVLAN gateway fails to open the ARP to the new data center VXLAN network, and that the cross-OVERLAY three-layer mutual access of hosts between the centers is failed are solved.

Description

technical field [0001] The invention relates to the field of virtual machine data migration, in particular to a method for solving the problem of cross-overlay three-layer mutual access of hosts between smooth migration centers. Background technique [0002] Virtual machine migration: the purpose of system virtualization is to virtualize and run one or more virtual machines (Virtual Machine, VM for short) on a physical machine by using a virtualization manager (Virtual Machine Monitor, referred to as VMM); virtual machine migration refers to Move a running virtual machine from one physical server to another without service interruption. The virtual machine migration technology provides a convenient method for server virtualization. The currently popular virtualization products VMware, Xen, Hyper-V, and KVM all provide their own migration tools. In order to ensure the normal availability of the virtual machine after migration, the network requirement of the virtual machine ...

Claims

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Application Information

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IPC IPC(8): H04L29/08H04L12/46H04L29/06G06F9/455
CPCH04L12/4633H04L12/4641H04L69/164G06F9/45558G06F2009/4557H04L67/563
Inventor 任海科羊富贵陈端芝马航飞
Owner FUJIAN JIANGXIA UNIV
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