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Availability-Guaran...
Availability-Guaranteed Service Function Chain Provisioning with Optional Shared Backups
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- Araujo, Igor M. (författare)
- Universidade Federal do Para,Federal University of Pará
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- Natalino Da Silva, Carlos, 1987 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Chen, Hao (författare)
- KTH,Optical Network Laboratory (ON Lab),Kungliga Tekniska Högskolan (KTH),Royal Institute of Technology (KTH)
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- De Andrade, Marilet (författare)
- KTH,Kungliga Tekniska Högskolan (KTH),Royal Institute of Technology (KTH)
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- Cardoso, Diego L. (författare)
- Universidade Federal do Para,Federal University of Pará
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- Monti, Paolo, 1973 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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(creator_code:org_t)
- IEEE, 2020
- 2020
- Engelska.
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Ingår i: 2020 16TH INTERNATIONAL CONFERENCE ON THE DESIGN OF RELIABLE COMMUNICATION NETWORKS DRCN 2020. - : IEEE.
- Relaterad länk:
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https://research.cha... (primary) (free)
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://research.cha...
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https://research.cha...
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Abstract
Ämnesord
Stäng
- The dynamic provisioning of Service Function Chain (SFC) using Virtual Network Functions (VNFs) is a challenging problem, especially for availability-constrained services. The provisioning of backup resources is often used to ensure that availability requirements are fulfilled. However, the assignment of backup resources should be carefully designed to avoid resource inefficiencies as much as possible. This paper proposes the Optional Backup with Shared Path and Shared Function (OBSPSF) strategy, which aims at improving resource efficiency while fulfilling the availability requirements of SFC requests. The strategy uses optional backup provisioning to ensure that backup resources are assigned only when strictly needed (i.e., when the SFC alone does not meet the availability constraint). Moreover, OBSPSF encourages backup sharing (among both connectivity and backup VNFs) to reduce the backup resource overhead. Results show that the strategy can accommodate orders-of-magnitude more services than benchmark heuristics from the literature.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Kommunikationssystem (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Communication Systems (hsv//eng)
Nyckelord
- Service Function Chaining
- Virtualized Network Function
- Provisioning
- Availability
- Shared Protection
Publikations- och innehållstyp
- ref (ämneskategori)
- kon (ämneskategori)