Method and device for realizing multicast message forwarding of VXLAN edge node

Abstract

The invention discloses a method and a device for realizing multicast message forwarding of a VXLAN edge node. The method comprises the steps of receiving and analyzing a VXLAN message to obtain an outer-layer destination IP address, an outer-layer source IP address and a virtual network number, and further performing tunnel searching and de-encapsulation processing to obtain a two-layer forwarding table identifier, a de-encapsulation outer-layer header offset and an outer-layer message searching identifier of an inner-layer message; judging whether to perform outer-layer message forwarding search or not according to the outer-layer message search identifier, and if so, simultaneously performing outer-layer message forwarding search and inner-layer message forwarding search to respectivelyobtain an outer-layer multicast group number and an inner-layer multicast group number; and performing multicast group copying processing according to the outer multicast group number, the inner multicast group number and the de-encapsulation outer header offset, and forwarding the message to a corresponding port. According to the invention, outer-layer and inner-layer search is completed simultaneously in one forwarding process, and outer-layer and inner-layer search results are carried simultaneously for multicast group replication processing, so that the forwarding time delay is effectively reduced, and the forwarding bandwidth consumption is reduced.

Description

technical field [0001] The present invention relates to the technical field of network communication, in particular to a method and device for implementing multicast message forwarding of VXLAN edge nodes. Background technique [0002] With the continuous development of network technology, cloud computing has become a new trend of IT construction. As one of the core technologies of cloud computing, server virtualization has been more and more applied. At the same time, in order to realize the flexible change and deployment of services, the demand for unlimited migration of virtual machines in the two-tier network is becoming more and more urgent. , while the traditional two-tier and three-tier networks have been unable to meet these needs. In order to solve the challenges brought by cloud computing, the application of VXLAN (Virtual eXtensible Local Area Network, Virtual Extended Local Area Network) technology was born. VXLAN is a tunneling technology that transmits data f...

AI Technical Summary

Problems solved by technology

It can be seen from the above that the loopback mechanism used in the prior art to process VXLAN multicast packets has problems such as increased forwarding delay, large forwarding bandwidth consumption, and complex software management.

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