Multicast replication method and device 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: 2015-12-16
HANGZHOU DT DREAM TECH
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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 cross-pod (positionofdevice, device deployment) inside the data center and span the network bandwidth between subnets

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  • Multicast replication method and device in Overlay network
  • Multicast replication method and device in Overlay network
  • Multicast replication method and device 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

The invention discloses a multicast replication method and device in an Overlay network. The method comprises: determining the types of nodes at first, wherein the types of the nodes comprise a root node and a non-root node, and the root node at least comprises one of the following: a subnet root node, a station root node and a global root node; sending an IP address to the nodes according to the types of nodes and an obtained network topology, and notifying the nodes to establish a direct tunnel according to the received IP address, for enabling the nodes to forward a multicast message through the direct tunnel after receiving the multicast message. The multicast replication method and device disclosed by the invention can be used for reducing the replication of multicast flow in the Overlay network, saving the CPU resources of head end equipment and saving the network bandwidth of a 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 (VirtualeXtensibleLocalAreaNetwork, Virtual Extended Local Area Network) technology, the traffic that needs to be multicast forwarded is mainly Layer 2 broadcast traffic such as ARP, DHCP and other packets. 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 there are m...

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Application Information

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