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VXLAN (Virtual Extensible Local Area Network) message forwarding method and device

A message forwarding and message technology, applied in the field of communication, can solve the problems of heavy workload and low forwarding efficiency of VXLAN gateway equipment

Active Publication Date: 2017-08-01
HANGZHOU DPTECH TECH
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Problems solved by technology

[0004] In view of this, the present application provides a VXLAN packet forwarding method and device to solve the problem of low forwarding efficiency due to the large workload of the VXLAN gateway device during the three-layer cross-tunnel forwarding of VXLAN packets in the prior art. question

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  • VXLAN (Virtual Extensible Local Area Network) message forwarding method and device

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[0047] 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.

[0048] see figure 1 , which is a network architecture diagram of VXLAN packet forwarding in the prior art. Such as figure 1 As shown, the VNI (VXLAN Network Identifier, virtual extensible LAN network identity) of the VXLAN network where VM 1 is located is 1000, the VLAN ID (Virtual Local Area Network Identifier, virtual local area network identifier) ​​of VM1 is 101, and the IP address of VM 1 is 10.1.1.100 / 24, the MAC address is MAC1, and VM 1 accesses VTEP 1 through Port 1;...

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Abstract

The invention provides a VXLAN (Virtual Extensible Local Area Network) message forwarding method and device. The method and the device are applied to a local end VTEP (VXLAN Tunneling End Point) device. The method comprises the steps of receiving an IP address of a second VM (Virtual Machine) transparently transmitted by an opposite end VTEP device through a VXLAN gateway device, and the IP address of the opposite end VTEP device; establishing a mapping relationship between the IP address of the second VM and the IP address of the opposite end VTEP device, and establishing a VXLAN tunnel between the local end VTEP device and the opposite end VTEP device based on the mapping relationship; sending a unicast message to the opposite end VTEP device based on the VXLAN tunnel when the unicast message sent to the second VM by a first VM is received, thereby enabling the opposite end VTEP device to forward the unicast message to the second VM. According to the method and the device, the problem that the forwarding efficiency is relatively low due to the fact that workloads of the VXLAN gateway device are relatively high in a three-layer cross-tunnel forwarding process of a VXLAN message is solved.

Description

technical field [0001] The present application relates to the technical field of communications, and in particular to a VXLAN packet forwarding method and device. 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 (Top of Rack, top of cabinet) switches need to support large-scale MAC address tables; 4094 A VLAN (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] In practical applications, when the local VM (Virtual Machine, virtual machine) and the peer VM are in different VXL...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/46H04L29/12
CPCH04L12/4633H04L12/4641H04L61/103H04L61/2592
Inventor 王洋王富涛
Owner HANGZHOU DPTECH TECH
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