Service Chain Provisioning With Sub-Chain-Enabled Coordinated Protection to Satisfy Availability Requirements
Service Chain Provisioning With Sub-Chain-Enabled Coordinated Protection to Satisfy Availability Requirements
复制标题
服务链供应与子链启用的协调保护以满足可用性要求
DOI：
10.1109/tnsm.2021.3124920
复制
发表时间：
2022
影响因子：
5.3
通讯作者：
Oki Eiji
中科院分区：
文献类型：
--
作者：
Zhang Yuncan;He Fujun;Oki Eiji
针对可用性保证的服务功能链（SFC）配置，提出了一种子链使能的协同保护模型，该模型考虑了构成SFC的各个组件（包括链路和VNF）的可用性。与传统的为整个链提供一定保护的保护模型不同，所提出的模型为每个SFC配置子链，并为每个子链提供适当的保护，从而以具有成本效益的方式实现所需的可用性。我们制定了该模型作为一个优化问题，以最大限度地减少部署成本。一个游戏的方法来解决这个问题。数值结果表明，该模型在部署成本方面优于传统模型;随着问题规模的增大，博弈方法具有可扩展性。
This paper proposes a sub-chain-enabled coordinated protection model for the availability-guaranteed service function chain (SFC) provisioning, which considers the availability of each component to constitute an SFC, including links and VNFs. Unlike conventional protection models providing certain protection for the whole chain, the proposed model configures sub-chains for each SFC and provides proper protection for each sub-chain to achieve the required availability in a cost efficient way. We formulate the proposed model as an optimization problem to minimize the deployment cost. A game approach is presented to tackle the problem. The numerical results show that the proposed model outperforms the conventional ones in terms of deployment cost; the game approach has scalability of tackling the proposed model as the problem size increases.