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Method and device for controlling multicast transmission in Overlay network

A control group and network technology, applied in the field of VXLAN, can solve the problems of large influence of CPU load and underutilization, etc., and achieve the effect of reducing the burden of CPU and reducing dependence

Inactive Publication Date: 2016-01-20
HANGZHOU DT DREAM TECH
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Problems solved by technology

[0003] Since the IGMP protocol is running between the multicast members receiving the multicast and the gateway, according to the IGMP protocol, multiple gateways are required for election, and only one gateway is required for each multicast group to copy the multicast header, and other gateways play a backup role , thus not fully utilizing the capabilities of each gateway
In addition, when the number of multicast groups is large, the VTEP device needs to maintain the status of a large number of multicast groups, which has a great impact on the CPU load.

Method used

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  • Method and device for controlling multicast transmission in Overlay network
  • Method and device for controlling multicast transmission in Overlay network
  • Method and device for controlling multicast transmission in Overlay network

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Embodiment Construction

[0021] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present application as recited in the appended claims.

[0022] The terminology used in this application is for the purpose of describing particular embodiments only, and is not intended to limit the application. As used in this application and the appended claims, the singular forms "a", "the", and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It should also be understood that the term...

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Abstract

The invention discloses a method and a device for controlling multicast transmission in an Overlay network. The method is applied to an SDB controller and comprises the steps of: obtaining multicast source information from a gateway; obtain multicast member information from a switch, wherein the multicast member information includes first interface information of the switch; obtaining tunnel entrance information of a tunnel established by the gateway and the switch; according to the multicast source information, the multicast member information, the tunnel entrance information and a recorded topological relation of the gateway and the switch, maintaining a multicast forwarding table; and sending the multicast forwarding table to the gateway and the switch so as to enable the gateway and the switch to control the transmission of multicast messages according to the multicast forwarding table. According to the invention, when an edge network is the Overlay network, the multicast control logic of VEPT network equipment is simplified, and the burden of a CPU is relieved.

Description

technical field [0001] The present application relates to VXLAN technology, and in particular to a method and device for controlling multicast transmission in an Overlay network. Background technique [0002] VXLAN (VirtualeXtensibleLocalAreaNetwork, Virtual Extended Local Area Network) is a technology that encapsulates Layer 2 packets with Layer 3 protocols, and can extend Layer 2 networks within the scope of Layer 3 networks. VXLAN realizes the isolation of the virtual network and the physical network by setting the intelligent entity VTEP (VXLAN Tunnel End Point, VXLAN Tunnel End Point) at the edge of the physical network. In the edge network, VXLAN-enabled Layer 3 gateways and Layer 2 switches are usually used as VTEP devices to transmit multicast packets sent by the multicast source to each multicast member in the VXLAN network. [0003] Since the IGMP protocol is running between the multicast members receiving the multicast and the gateway, according to the IGMP proto...

Claims

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Application Information

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IPC IPC(8): H04L12/46H04L12/761H04L12/751H04L45/02H04L45/16
Inventor 谢宁
Owner HANGZHOU DT DREAM TECH
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