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Overlay multicast method, device and equipment

A multicast and multicast group technology, applied in the field of communication, can solve the problems of multicast traffic encapsulation, inability to support VXLAN multicast, increase OVS, etc., to reduce overhead, reduce dependence on multicast routing protocols, and improve performance

Pending Publication Date: 2021-10-15
NEW H3C BIG DATA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] At present, most VSwitches cannot support VXLAN multicast, that is, they cannot encapsulate multicast traffic into VXLAN packet headers, and set the outer layer IP address as a multicast address. In addition, VSwitches that support VXLAN multicast will also increase OVS ( Openflow Virtual Switch, OVS) CPU and memory resource consumption pressure

Method used

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  • Overlay multicast method, device and equipment
  • Overlay multicast method, device and equipment
  • Overlay multicast method, device and equipment

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Embodiment Construction

[0038] Terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments, not limiting the embodiments of the present disclosure. The singular forms "a", "said" and "the" used in the embodiments of the present disclosure are also intended to include the plural forms unless the context clearly indicates otherwise. As used in this disclosure, the term "and / or" is meant to encompass any and all possible combinations of one or more of the associated listed items.

[0039] It should be understood that although the embodiments of the present disclosure may use the terms first, second, third, etc. to describe various information, the information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of the embodiments of the present disclosure, first information may also be called second information, and similarly, sec...

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Abstract

The invention provides an overlay multicast method, device and equipment, and the method comprises the steps: building a mapping relation between an overlay multicast group and an underlay multicast group through an SDN controller, transmitting a first flow table item and a second flow table item to a virtual switch where a virtual machine joining the overlay multicast group is located through the SDN controller, wherein the first flow table item is used for removing a large two-layer virtual network package from a received underlay multicast message and forwarding the underlay multicast message to a multicast receiver, and the second flow table is used for adding the large two-layer virtual network package to an Overlay multicast message sent by a multicast source and forwarding the Overlay multicast message to an Underlay switch through an Underlay multicast group address. The virtual switch in the disclosure can realize EVPN multicast under the condition that protocols such as an EVPN multicast routing protocol and the like are not supported, and the multicast routing protocol dependence of the virtual switch is reduced.

Description

technical field [0001] The present disclosure relates to the field of communication technologies, and in particular to an Overlay multicast method, device and equipment. Background technique [0002] Ethernet Virtual Private Network (EVPN) is a VPN technology. When the physical sites of tenants are scattered in different locations, EVPN can be based on the existing service provider or enterprise IP network, for the same subnet of the same tenant. Provides Layer 2 or Layer 3 interconnection. Through large-scale two-layer virtual network technology, such as the scalable virtual local area network (Virtual eXtensible LAN, VXLAN) protocol, different tenants can share the same underlying network. This method is more and more widely used in the industry. Currently, the two mainstream The device that encapsulates and decapsulates VXLAN, one is called host overlay, that is, the virtual switch (Virtual Switch, VSwitch) inside the server is used to add and decapsulate the VXLAN heade...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/931H04L12/935H04L12/46H04L49/111
CPCH04L49/70H04L49/201H04L49/3009H04L12/4641
Inventor 杨柳赵海峰
Owner NEW H3C BIG DATA TECH CO LTD
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