Optimization method and device for VXLAN (Virtual Extensible Local Area Network) control plane

A technology of control plane and optimization method, which is applied in the optimization field of VXLAN control plane, and can solve problems such as high pressure on routing equipment

Active Publication Date: 2017-11-10
HANGZHOU DPTECH TECH
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Problems solved by technology

[0012] In view of this, this application provides a VXLAN control plane optimization method and device to solve the problem of establishing a VXLAN tunnel through the IP prefix route defined by the BGP EVPN protocol in a distributed gateway scenario. When there are a lar

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  • Optimization method and device for VXLAN (Virtual Extensible Local Area Network) control plane
  • Optimization method and device for VXLAN (Virtual Extensible Local Area Network) control plane
  • Optimization method and device for VXLAN (Virtual Extensible Local Area Network) control plane

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[0056] In order to enable those skilled in the art to better understand the technical solutions in the embodiments of the present invention, and to make the above-mentioned purposes, features and advantages of the embodiments of the present invention more obvious and understandable, the following describes the existing technical solutions and the present invention in conjunction with the accompanying drawings. The technical solutions in the embodiments of the invention are described in further detail.

[0057] On a VXLAN network, different VXLAN subnets of a VNI cannot directly communicate with each other, nor can a VXLAN subnet and a non-VXLAN network communicate directly with each other. To enable communication between different VXLAN subnets of a VNI, and between a VXLAN subnet and a non-VXLAN network, the VXLAN technology introduces a VXLAN gateway.

[0058] Among them, VXLAN gateways are divided into layer-2 gateways and layer-3 gateways; layer-2 gateways are used to solv...

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Abstract

The invention provides an optimization method and device for a VXLAN (Virtual Extensible Local Area Network) control plane. The method and the device are applied to a local VTEP (VXLAN Tunneling End Point) device. The method comprises the steps of receiving an ARP (Address Resolution Protocol) request message sent by a first VM (Virtual Machine) and learning an ARP table entry corresponding to the first VM; filling an MAC address of the first VM in the ARP table entry into an IP prefix route message; sending the IP prefix route message to an opposite VTEP device, thereby enabling the opposite VTEP device to establish a VXLAN tunnel with the local VTEP device based on the IP prefix route message, learn the ARP table entry corresponding to the first VM, and further return the learned ARP table entry corresponding to the first VM to a second VM when the ARP request message which is sent by the second VM and is used for requesting the MAC address of the first VM is received. According to the method and the device, the problem that a great number of broadcast messages exist in a network and the pressure of a routing device in the network is too heavy when a great number of hosts in the VXLAN network carry out initial communication is solved.

Description

technical field [0001] The present application relates to the technical field of communications, and in particular to a method and device for optimizing a VXLAN control plane. Background technique [0002] With the rapid development of cloud computing, the degree of virtualization of data centers is getting higher and higher, and the requirements for physical networks are becoming more and more stringent. For example, TOR switches need to support large-scale MAC address tables; 4094 VLANs (Virtual Local Area Network, virtual Local area network) cannot divide a large number of virtual machines; it is necessary to support multi-tenant network isolation, etc. It is these requirements that make the overlay network technology VXLAN (Virtual Extensible Local Area Network, Virtual Extensible Local Area Network) emerge as the times require. [0003] VXLAN between different VNIs (VXLAN Network Identifier, Virtual Extensible Local Area Network Identifier), and between VXLAN and non-V...

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Application Information

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IPC IPC(8): H04L12/741H04L12/745H04L12/46H04L29/12H04L45/74H04L45/748
CPCH04L12/4633H04L45/74H04L45/745H04L45/748H04L61/103H04L61/2592H04L2101/622
Inventor 王洋王琳
Owner HANGZHOU DPTECH TECH
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