Method for adding public cloud network physical host into VPC

Abstract

The invention relates to the field of cloud computing and computer networks, and specifically provides a method for adding public cloud network physical host into VPC. The method comprises: the physical host being connected to a ToR switch through a vlan, the ToR of the physical host supporting the vxlan and multicast, and expanding a plugin and an agent of the neutron; adding a plugin of l2 gateway into a new server, and expanding the function of the generic network switch plugin, so as to obtain the plugin of l2 gateway; and configuring vni mapping of vlan and vxlan of a ToR switch where a physical host is located, newly adding agent extension of l2 gateway in an openvswitch agent, and managing a virtual network bridge and an ovs flow table by a user. Compared with the prior art, the physical host and the VPC internal virtual machine can achieve two-layer and three-layer intercommunication through the VPC internal network address, unified management of the virtual machine and the physical host is achieved, and good popularization value is achieved.

Description

technical field [0001] The invention relates to the fields of cloud computing and computer networks, and specifically provides a method for a public cloud network physical host to join a VPC. Background technique [0002] Openstack, as a mainstream product of open source Iaas cloud computing, has received widespread attention and general welcome from the industry, especially in recent years, the Openstack open source community and the commercialization of Openstack related products have achieved rapid development, but Openstack has As a public cloud IaaS platform operating system, there are still many functions to be expanded, such as supporting physical hosts to join VPC. [0003] When Openstack is used as the public cloud Iaas platform operating system, in order to ensure the robustness and performance of network L3 traffic, it usually turns on the dvr (distributed virtual routing) mode in its network component neutron. In the dvr mode, the virtual router exists on the co...

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Problems solved by technology

[0004] The feature of Neutron's dvr mode brings challenges to the design of many network solutions based on neutron. For example, if a physical host joins a VPC, due to the distributed routing of L3 traffic, there is no centralized control point. For a physical host, its Layer 3 gateway cannot directly Multiplex the virtual router on the computing node, because there are multiple identical virtual routers on the computing node, direct multiplexing will cause address conflicts and services will be unavailable

[0005] The industry generally adopts two methods to solve the interworking between the physical host and the virtual machine in the VPC. One method is the routing mode interworking, that is, the physical host and the virtual machine network are associated through the gateway, and the routing layer interworking is realized by configuring the forwarding policy. The disadvantage of this solution is that the physical host cannot be in the same layer 2 domain as the virtual machine in the VPC. From the perspective of public cloud products, resource usage is not uniform, and it is not conducive to business migration

[0006] Another method is to use vxlan-supporting hardware switches and evpn technology to realize the large-scale two-layer intercommunication between the vxlan network of the virtual machine and the physical host. The vtep of OpenStack is supported by hardware, and the ToR (Top of Rack) switch of the physical host is also supported. Need to support vxlan and evpn, use sdn controller or independently developed control plane management tool to realize the control plane function of evpn, the disadvantage of this method is that it needs hardware support, lacks flexibility, and sdn controller needs to take over the virtualization of OpenStack Network management, its stability, robustness and performance are all facing challenges

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