Design And Implementation Of Virtual Private Cloud Interconnection System

Along with the rapid development of public cloud,enterprises have created many VPCs relying on public cloud.VPC(Virtual Private Cloud),running in the public cloud environment,is a private virtual network system established by users according to their own business requirements.Users can manage host,database,network and storage resources in the private cloud.For enterprises with many branches,the interconnection between private clouds is an indispensable gu arantee for the enterprise.This improves the management level and collaboration ability of multiple branches of enterprises.But,public cloud vendors only support the internal VPCs interconnection.They don't support connection to other vendor's VPCs.The goal of this paper is to provide enterprises with virtual private cloud interconnection network across regions and public clouds.Firstly,this paper analyzes the research status of GRE over IPsec and introduces the research status of virtual private cloud interconnection of different vendors.This paper analyzes the advantages and disadvantages of GRE protocol and IPsec protocol,and analyzes the application scenario and operation mode of IPsec VPN which lays a foundation for designing the mode of interconnection network.This paper also analyzes the advantages and disadvantages of dynamic routing management software and routing protocol and select the appropriate dynamic routing protocol.Secondly,this paper proposes a method combining networking technology with dynamic routing to solve the difficult problem of large-scale networking routing management.At the same time,we use sodium encryption library to realize a set of secure communication protocol based on TCP/IP to receive the instructions sent by the controller.Finally,through the design and implementation of the Internet management platform,this paper achieves the management of gateway,routing,firewall rules and DNS.After users make a simple configuration on the platform management interface,the gateway will automatically finish network and routing operations,so as to achieve the intelligent interconnection between virtual private clouds.When the network changes,the dynamic routing management module will reload the routing to ensure the self-recovery ability of networking.The realization of this interconnection platform provides an important reference for large-scale automatic networking research.