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https://doi.org/10.1109/infoco...
Article . 2025 . Peer-reviewed
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On disaster-resilient hybrid service function chains

Authors: Madani, Mohamed; Zhou, Fen; Meddahi, Ahmed;

On disaster-resilient hybrid service function chains

Abstract

Network Function Virtualization (NFV), offers a flexible solution through the orchestration of Virtual Network Functions (VNFs) into a Service Function Chain (SFC), facilitating the seamless transfer of user data between customers and edge servers/clouds. The distinct requirements of forward and backward traffic necessitate a Hybrid SFC (HSFC) approach. However, the resilience of these NFV and SFC deployments against disasters, whether natural or due to hardware malfunctions, presents a significant challenge, often resulting in service disruptions or degraded performance within disaster zones (DZ). To address these challenges, we propose the Resilient Hybrid Service Function Chain Resource Optimization (R-HSFC-RO) strategy, aimed at minimizing network resource consumption while ensuring service resilience. This strategy accounts for bandwidth allocation, computing resource requirements for executing VNFs, installation costs, and latency considerations. We propose a novel heuristic approach for a scalable solution, leveraging the constrained shortest path algorithm in a multi-partite graph framework. Simulation results affirm the R-HSFC-RO strategy's effectiveness in enhancing resource and cost efficiency, yielding gains of up to 30% in overall cost and up to 50% in CPU and VNF costs, thereby improving the resilience and operational efficiency of HSFC deployments against potential disruptions.

Keywords

[INFO.INFO-NI] Computer Science [cs]/Networking and Internet Architecture [cs.NI], Disaster Resiliency, Heuristic, Hybrid Service Function Chain (HSFC), [INFO] Computer Science [cs], [INFO.INFO-RO] Computer Science [cs]/Operations Research [math.OC], Network Function Virtualization (NFV)

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green