Software-defined networking (SDN) and network function virtualization (NFV) technologies provide support for service function chain (SFC) deployment. As the scale of a network expands, SDN domains are maintained and managed by their respective network operators. When deploying an SFC in multiple domains, to protect the privacy of each domain is challenging. We propose a cross-domain SFC deployment scheme based on a bargaining game. We establish an effective cross-domain service chain system model and combine resource consumption cost and load balance to translate SFC deployment to an optimization problem. A bargaining game model is established so as to reasonably optimize these contradictory parameters. We solve the model by an improved imperialist competition algorithm and obtain the optimal node mapping relationship. Experimental results show that our method performs better than the current one in terms of network load balancing and mapping overhead and has better scalability.

中文翻译：

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基于讨价还价博弈的跨域服务功能链部署方案

软件定义网络（SDN）和网络功能虚拟化（NFV）技术为服务功能链（SFC）部署提供支持。随着网络规模的扩展，SDN域由其各自的网络运营商维护和管理。在多个域中部署SFC时，保护每个域的隐私具有挑战性。我们提出了一个基于讨价还价博弈的跨域SFC部署方案。我们建立了有效的跨域服务链系统模型，并将资源消耗成本和负载平衡相结合，将SFC部署转化为优化问题。建立了讨价还价博弈模型，以合理优化这些矛盾参数。通过改进的帝国主义竞争算法对模型进行求解，得到最优的节点映射关系。