FDN: Function Delivery Network - Optimizing Service Chain Deployment in NFV

• HIRWE Anish

  Department of Computer Science and Engineering, Indian Institute of Technology Hyderabad

• KATAOKA Kotaro

  Department of Computer Science and Engineering, Indian Institute of Technology Hyderabad

抄録

The static deployment of Virtualized Network Functions (VNFs) introduces 1) significant degradation of Quality of Service (QoS), 2) inefficiency in the network and computing resource utilization, and 3) Network Function Virtualization (NFV)-based services with insufficient scalability, optimality, and flexibility. Caching VNFs is a promising solution to satisfy the dynamic demand to deploy a variety of VNFs and to maximize the performance as well as cost effectiveness. Although the concept of Content Delivery Network (CDN) is popular for efficiently caching and distributing contents, VNF deployment does not realize the benefit of CDN-based caching approaches. The challenges to caching VNFs are 1) to cover the large variety of VNFs and their properties, including the necessity of service chaining, and 2) to achieve high acceptance ratio given the limited availability of resources. This paper proposes Function Delivery Network (FDN), which is a cluster of distributed edge hypervisors for caching VNFs over a Software-Defined Network (SDN). The deployment and quality of the network function can be significantly improved by serving them closer to the end-users from the cached VNFs. FDN introduces a new strategy called Value-based caching that considers 1) the locality of reference and performance parameters of network and edge hypervisors together and 2) a partial deployment of service chains across multiple edge hypervisors for further efficient utilization of hypervisors resources. Evaluations on different patterns of input requests confirm that Value-based caching introduces significant improvement on both QoS and resource utilization in NFV.

収録刊行物

• IEICE Transactions on Communications

  IEICE Transactions on Communications E103.B (7), 712-725, 2020-07-01

  一般社団法人 電子情報通信学会

キーワード

• SDN
• NFV
• function delivery
• caching strategy
• network management

詳細情報

• CRID: 1390566775148119808
• NII論文ID: 130007867647
• DOI: 10.1587/transcom.2019ebp3167
• ISSN: 17451345
• ISSN: 09168516
• Web Site: https://www.jstage.jst.go.jp/article/transcom/E103.B/7/E103.B_2019EBP3167/_pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
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