Virtualized Network Functions Placement Scheme in Cloud Network Collaborative Operation Platform

Abstract

As the cloud network collaborative operation platform becomes the start and end point of network traffic and the number of service types carried by the data center increases, traffic interaction between data centers (east-west traffic) increases gradually. In this paper, a virtualized network functions placement scheme is proposed to meet the demand of large bandwidth, low delay and differentiated load for the increasing east-west traffic, which mainly carries east-west traffic between data centers in different geographical locations. The proposed scheme provides fast, automatic, diversified and differentiated carrying service for the above traffic. The proposed scheme mainly includes three parts: 1) L3 virtual private network services, namely the cloud network backbone for customers in different network room or L3 virtual private network services cloud pool of resources, ensure data security; 2) differentiation bandwidth service, i.e. the cloud network backbone network according to the different quality of service requirements of different customers and money demand reserved link bandwidth resources; 3) self-service automation, choreographer and controller as the cloud network backbone to achieve business automation opened and deployment, administrators through management portal implementation business rapid deployment and adjustment, the customer can realize self-help resources through services portal application and business plan. Evaluation results have validated the effectiveness of the proposed method and show its advantages over counterparts.