A message transmission method and device

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

Active Publication Date: 2018-03-13
NEW H3C TECH CO LTD
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  • Summary
  • 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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  • A message transmission method and device
  • A message transmission method and device
  • A message transmission method and device

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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 present invention discloses a message transmission method and equipment. The method includes: a virtual switch receives a first flow table and a second flow table delivered by an SDN controller; when the virtual switch receives a message from a virtual machine, if the report If the text can match the first flow table, the virtual switch uses the first flow table to send the packet to the virtual NAT device, and the virtual NAT device performs NAT translation on the source IP address of the packet, and sends the NAT-translated packet For the virtual switch; when the virtual switch receives a message from the virtual NAT device, if the message can match the second flow table, the virtual switch uses the second flow table to perform VXLAN encapsulation on the message , and send the VXLAN-encapsulated packet to the VXLAN gateway. In the embodiment of the present invention, the VXLAN gateway is prevented from performing NAT conversion on the message of the virtual machine, 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 Patents(China)
IPC IPC(8): H04L12/46H04L29/12H04L12/741H04L45/74
Inventor 赵昌峰
Owner NEW H3C TECH CO LTD
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