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Method and device for multicast replication in overlay network

A network and multicast technology, which is applied in the field of Overlay network, can solve the problems of wasting data centers, excessive CPU usage, wasting resources, etc., and achieve the effects of reducing duplication, saving CPU resources, and saving network bandwidth

Active Publication Date: 2019-01-25
HANGZHOU DT DREAM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] When the range of the VXLAN network is large, especially when there are multiple data centers in the Overlay network, the switch responsible for head-end replication of multicast packets needs to perform a large number of head-end copies, resulting in excessive CPU usage and waste of resources. Waste the inter-pod (position of device, device deployment) in the data center and the network bandwidth between subnets

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  • Method and device for multicast replication in overlay network
  • Method and device for multicast replication in overlay network
  • Method and device for multicast replication in overlay network

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Embodiment Construction

[0020] 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.

[0021] 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

This application discloses a method and device for multicast replication in an Overlay network. The method first determines the type of node, and the type of node includes a root node and a non-root node. The root node includes at least one of the following: including a subnet root Node, site root node, global root node; according to the type of the node and the obtained network topology, send the IP address to each node, and notify each node to establish a direct connection tunnel according to the received IP address, so that Each node forwards the multicast message through the direct tunnel after receiving the multicast message. The application can reduce the replication of multicast traffic in the Overlay network, save the CPU resources of the head-end equipment, and save the network bandwidth inside the data center.

Description

technical field [0001] The present application relates to Overlay network technology, in particular to a method and device for multicast replication in the Overlay network. Background technique [0002] In the cloud computing data center, under the Overlay networking model based on VXLAN (Virtual eXtensible Local Area Network, Virtual Extended Local Area Network) technology, the traffic that needs to be forwarded by multicast is mainly Layer 2 broadcast traffic such as ARP, DHCP, etc. At this time, each virtual machine or non-virtualized physical host in the same Layer 2 domain on the Overlay network may be a multicast source and a multicast member. In today's cloud computing data centers, the multicast forwarding function of network devices is usually not deployed in the network, and point-to-multipoint forwarding is usually realized by means of head-end replication of multicast packets by switches. [0003] When the range of the VXLAN network is large, especially when the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/753H04L12/761H04L12/801H04L12/46H04L45/16H04L45/74H04L47/80H04L49/111
Inventor 纪阳
Owner HANGZHOU DT DREAM TECH