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Method and device for transmitting message

A message transmission and message technology, applied in the field of communication, can solve the problems of very high performance requirements of VXLAN gateways and communication bottlenecks of VXLAN gateways

Active Publication Date: 2015-05-06
NEW H3C TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since NAT conversion needs to occupy the CPU (Central Processing Unit, central processing unit) resources of the VXLAN gateway, the VXLAN gateway will receive a large number of packets sent by virtual machines that require NAT conversion. Therefore, the VXLAN gateway processes a large number of packets at the same time. , the performance requirements of the VXLAN gateway are very high, and the VXLAN gateway may become a communication bottleneck

Method used

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  • Method and device for transmitting message
  • Method and device for transmitting message

Examples

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Embodiment Construction

[0063] Aiming at the problems existing in the prior art, the embodiment of the present invention provides a kind of message transmission method, and this method can be applied to the network (such as VXLAN network), and a virtual switch and at least one virtual machine run on the physical server. In addition, a virtual NAT device can run on the physical server. Wherein, both the virtual switch and the virtual NAT device are functional modules running on the physical server. The virtual NAT device may be a functional module at the same level as the virtual switch, and data traffic between the virtual NAT device and the virtual switch may be transmitted through a standard virtual interface. The virtual NAT device can also be a sub-functional module of the virtual switch, and the data traffic between the virtual NAT device and the virtual switch can be transmitted through a standard virtual interface, or through an internal program interface.

[0064] by figure 2 The shown VX...

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Abstract

The invention discloses a method and a device for transmitting message. The method is as follows: a virtual switch receives the first flow stable and a second flow stable sent by the SDN controller; if the message is matched with the first flow table while the virtual switch receives the message from the virtual machine, the virtual switch sends the message to the virtual NAT device via the first flow table, the virtual NAT device does NAT conversion on the source IP address of the message and sends the conversion NAT message to the virtual switch; if the message is matched with the second flow table while the virtual switch receives the message from the virtual NAT device, the virtual switch uses the second flow table for executing VXLAN packaging operation on the message and sends the VXLAN packaged message to the VXLAN gateway. According to the embodiment, the NAT conversion is avoided to the message of the virtual machine by the VXLAN gateway, the CPU resource of the VXLAN gateway is saved and the processing performance of the VXLAN gateway is reduced.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a message transmission method and equipment. Background technique [0002] With the development of data center cloud computing and virtualization technology, the scale of virtual machines that a data center needs to support has exploded. At the same time, virtual machine migration needs to be in the same layer 2 domain, and different tenants need to be logically isolated. Since the traditional VLAN (Virtual Local Area Network, virtual local area network) can only support up to 4096, if VLAN technology is used to divide and isolate Layer 2 domains, the scale can no longer meet the requirements. Therefore, VXLAN (Virtual eXtensible Local Area Network, scalable virtual local area network) technology came into being. VXLAN has a larger identification space and runs on a layer-3 IP network, making it easier to deploy and maintain. [0003] Such as figure 1 As shown in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/46H04L29/12H04L12/741H04L45/74
Inventor 赵昌峰
Owner NEW H3C TECH CO LTD
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