IEICE TRANSACTIONS on Communications
Resource-Efficient and Availability-Aware Service Chaining and VNF Placement with VNF Diversity and Redundancy
Summary :
To establish a network service in network functions virtualization (NFV) networks, the orchestrator addresses the challenge of service chaining and virtual network function placement (SC-VNFP) by mapping virtual network functions (VNFs) and virtual links onto physical nodes and links. Unlike traditional networks, network operators in NFV networks must contend with both hardware and software failures in order to ensure resilient network services, as NFV networks consist of physical nodes and software-based VNFs. To guarantee network service quality in NFV networks, the existing work has proposed an approach for the SC-VNFP problem that considers VNF diversity and redundancy. VNF diversity splits a single VNF into multiple lightweight replica instances that possess the same functionality as the original VNF, which are then executed in a distributed manner. VNF redundancy, on the other hand, deploys backup instances with standby mode on physical nodes to prepare for potential VNF failures. However, the existing approach does not adequately consider the tradeoff between resource efficiency and service availability in the context of VNF diversity and redundancy. In this paper, we formulate the SC-VNFP problem with VNF diversity and redundancy as a two-step integer linear program (ILP) that adjusts the balance between service availability and resource efficiency. Through numerical experiments, we demonstrate the fundamental characteristics of the proposed ILP, including the tradeoff between resource efficiency and service availability.
- Publication
- IEICE TRANSACTIONS on Communications Vol.E107-B No.1 pp.105-116
- Publication Date
- 2024/01/01
- Publicized
- 2023/10/10
- Online ISSN
- 1745-1345
- DOI
- 10.1587/transcom.2023WWP0003
- Type of Manuscript
- Special Section PAPER (Special Section on Wired-and-Wireless Network System Technologies in Beyond 5G/6G)
- Category
Authors
Takanori HARA
Nara Institute of Science and Technology
Masahiro SASABE
Kansai University
Kento SUGIHARA
Nara Institute of Science and Technology
Shoji KASAHARA
Nara Institute of Science and Technology
Keyword
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Takanori HARA, Masahiro SASABE, Kento SUGIHARA, Shoji KASAHARA, "Resource-Efficient and Availability-Aware Service Chaining and VNF Placement with VNF Diversity and Redundancy" in IEICE TRANSACTIONS on Communications,
vol. E107-B, no. 1, pp. 105-116, January 2024, doi: 10.1587/transcom.2023WWP0003.
Abstract: To establish a network service in network functions virtualization (NFV) networks, the orchestrator addresses the challenge of service chaining and virtual network function placement (SC-VNFP) by mapping virtual network functions (VNFs) and virtual links onto physical nodes and links. Unlike traditional networks, network operators in NFV networks must contend with both hardware and software failures in order to ensure resilient network services, as NFV networks consist of physical nodes and software-based VNFs. To guarantee network service quality in NFV networks, the existing work has proposed an approach for the SC-VNFP problem that considers VNF diversity and redundancy. VNF diversity splits a single VNF into multiple lightweight replica instances that possess the same functionality as the original VNF, which are then executed in a distributed manner. VNF redundancy, on the other hand, deploys backup instances with standby mode on physical nodes to prepare for potential VNF failures. However, the existing approach does not adequately consider the tradeoff between resource efficiency and service availability in the context of VNF diversity and redundancy. In this paper, we formulate the SC-VNFP problem with VNF diversity and redundancy as a two-step integer linear program (ILP) that adjusts the balance between service availability and resource efficiency. Through numerical experiments, we demonstrate the fundamental characteristics of the proposed ILP, including the tradeoff between resource efficiency and service availability.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.2023WWP0003/_p
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@ARTICLE{e107-b_1_105,
author={Takanori HARA, Masahiro SASABE, Kento SUGIHARA, Shoji KASAHARA, },
journal={IEICE TRANSACTIONS on Communications},
title={Resource-Efficient and Availability-Aware Service Chaining and VNF Placement with VNF Diversity and Redundancy},
year={2024},
volume={E107-B},
number={1},
pages={105-116},
abstract={To establish a network service in network functions virtualization (NFV) networks, the orchestrator addresses the challenge of service chaining and virtual network function placement (SC-VNFP) by mapping virtual network functions (VNFs) and virtual links onto physical nodes and links. Unlike traditional networks, network operators in NFV networks must contend with both hardware and software failures in order to ensure resilient network services, as NFV networks consist of physical nodes and software-based VNFs. To guarantee network service quality in NFV networks, the existing work has proposed an approach for the SC-VNFP problem that considers VNF diversity and redundancy. VNF diversity splits a single VNF into multiple lightweight replica instances that possess the same functionality as the original VNF, which are then executed in a distributed manner. VNF redundancy, on the other hand, deploys backup instances with standby mode on physical nodes to prepare for potential VNF failures. However, the existing approach does not adequately consider the tradeoff between resource efficiency and service availability in the context of VNF diversity and redundancy. In this paper, we formulate the SC-VNFP problem with VNF diversity and redundancy as a two-step integer linear program (ILP) that adjusts the balance between service availability and resource efficiency. Through numerical experiments, we demonstrate the fundamental characteristics of the proposed ILP, including the tradeoff between resource efficiency and service availability.},
keywords={},
doi={10.1587/transcom.2023WWP0003},
ISSN={1745-1345},
month={January},}
Copy
TY - JOUR
TI - Resource-Efficient and Availability-Aware Service Chaining and VNF Placement with VNF Diversity and Redundancy
T2 - IEICE TRANSACTIONS on Communications
SP - 105
EP - 116
AU - Takanori HARA
AU - Masahiro SASABE
AU - Kento SUGIHARA
AU - Shoji KASAHARA
PY - 2024
DO - 10.1587/transcom.2023WWP0003
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E107-B
IS - 1
JA - IEICE TRANSACTIONS on Communications
Y1 - January 2024
AB - To establish a network service in network functions virtualization (NFV) networks, the orchestrator addresses the challenge of service chaining and virtual network function placement (SC-VNFP) by mapping virtual network functions (VNFs) and virtual links onto physical nodes and links. Unlike traditional networks, network operators in NFV networks must contend with both hardware and software failures in order to ensure resilient network services, as NFV networks consist of physical nodes and software-based VNFs. To guarantee network service quality in NFV networks, the existing work has proposed an approach for the SC-VNFP problem that considers VNF diversity and redundancy. VNF diversity splits a single VNF into multiple lightweight replica instances that possess the same functionality as the original VNF, which are then executed in a distributed manner. VNF redundancy, on the other hand, deploys backup instances with standby mode on physical nodes to prepare for potential VNF failures. However, the existing approach does not adequately consider the tradeoff between resource efficiency and service availability in the context of VNF diversity and redundancy. In this paper, we formulate the SC-VNFP problem with VNF diversity and redundancy as a two-step integer linear program (ILP) that adjusts the balance between service availability and resource efficiency. Through numerical experiments, we demonstrate the fundamental characteristics of the proposed ILP, including the tradeoff between resource efficiency and service availability.
ER -
English
