Method and system for implementing sub-network intercommunication

Abstract

The invention discloses a method and system for implementing sub-network intercommunication, and relates to the field of communications. When a first virtual machine of a tenant sends an IP message to a second virtual machine, the IP message is sent to first VTEP (Virtual Extensible LAN Tunneling End Point) equipment; the first VTEP equipment packages the IP message into a first VxLAN (Virtual Extensible LAN) message and forwards the first VxLAN message to a VxLAN gateway; if a VxLAN MAC table comprises an MAC address table item of the second virtual machine, a VNI (VxLAN Network Identifier) number of the second virtual machine is extracted from the VxLAN MAC table; and if the VNI numbers of the second virtual machine and the first virtual machine belong to the same tenant, the first VxLAN message is repackaged to generate a second VxLAN message and the second VxLAN message is forwarded to second VTEP equipment so as to send the IP message to the second virtual machine. According to the method and the system which are disclosed by the invention, by constructing a tenant VxLAN set table, intercommunication of the same tenant in different VxLAN networks or three layers of sub-networks can be implemented, and network isolation between different tenants is kept.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method and system for realizing subnetwork intercommunication. Background technique [0002] VxLAN (Virtual Extensible LAN, Virtual Extensible Local Area Network) is an overlay network technology, which uses MAC in UDP method for encapsulation, and 4798 is fixed as the destination port. As an extension of VLAN technology, VxLAN expands 4k VLANs to 16M VxLANs, which breaks through the limitations of traditional network architecture and the number of tenants. It can support new cloud computing services without changing the existing network architecture and facilitate user deployment. . [0003] The purpose of VxLAN is to build a large layer-2 network. For example, in the process of integrating multiple IDCs (Internet Data Center, Internet Data Center) into one VDC (Virtual Data Center, virtualized data center), VxLAN can integrate computer rooms in different locations into one ...

AI Technical Summary

Problems solved by technology

However, this solution requires that the VxLAN network numbers of the same tenant must be allocated consecutively, and 3 bytes of VNI mask information need to be added to the user packet, resulting in poor feasibility and versatility of the solution, and the query More content needs to be paid attention to when making a watch, which will also lead to an increase in equipment costs, which is not conducive to large-scale adoption

Moreover, if intercommunication between different VxLAN domains is required due to customer mergers and other reasons, the existing three-layer IP / VPN solution needs to be continued to implement complex

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