172,451 Hits in 3.9 sec

Resource Requirements for Reliable Service Function Chaining

Andrea Tomassilli, Nicolas Huin, Frederic Giroire, Brigitte Jaumard
2018 2018 IEEE International Conference on Communications (ICC)  
We provided exact methods to obtain reliable Service Function Chains against single-link failure.  ...  We implemented and evaluated the models on 3 network topologies with different sizes, studying the bandwidth requirements for the protection, as well as their latency robustness.  ...  The main difference with our work is that we propose a scalable exact decomposition model to provide reliable service function chaining.  ... 
doi:10.1109/icc.2018.8422774 dblp:conf/icc/TomassilliHGJ18 fatcat:a5re3h4d5ncfjpplihphwzvjqi

A Reliability-Aware, Delay Guaranteed, and Resource Efficient Placement of Service Function Chains in Softwarized 5G Networks

Prabhu KaliyammalThiruvasagam, Vijeth J. Kotagi, Siva Ram Murthy
2020 IEEE Transactions on Cloud Computing  
In this work, we address the reliability-aware, delay guaranteed, and resource efficient Service Function Chain (SFC) placement problem in softwarized 5G networks.  ...  By extensive simulations we show that our proposed solutions consume lesser physical resources compared to state-of-the-art solutions for provisioning reliable communication services.  ...  For the same setup, we calculate the number of backups required to meet the reliability requirement of service requests and the number of resources required to place the primary and backup network functions  ... 
doi:10.1109/tcc.2020.3020269 fatcat:kgevkj33ofccdbt7z3wkvsaosi

Improving Reliability of Service Function Chains with Combined VNF Migrations and Replications [article]

Francisco Carpio, Admela Jukan
2017 arXiv   pre-print
To provide services, the VNFs are commonly concatenated in a certain ordered sequence, known as Service Function Chains (SFCs). SFCs are usually required to meeting a certain level of reliability.  ...  We study how to improve service reliability using jointly replications and migrations, considering the chaining problem inherent in NFV.  ...  CONCLUSIONS To provide high reliability in service function chains, a high number of VNF replicas is required.  ... 
arXiv:1711.08965v1 fatcat:k4pjgo3gonfmzlhydredfljnja

The More the Merrier: Enhancing Reliability of 5G Communication Services with Guaranteed Delay

Prabhu Kaliyammal Thiruvasagam, Vijeth J Kotagi, C Siva Ram Murthy
2019 IEEE Networking Letters  
cost and time through service function chaining, it introduces new challenges in terms of reliability, availability, and latency of services.  ...  In this letter, we propose a novel solution called eRESERV to enhance the reliability of service chains in 5G while meeting the service level agreements.  ...  Service Function Chaining (SFC) or simply service chain involves instantiation of an ordered list of network/service functions (e.g., firewall, IDS, and proxy), and connecting them together as a chain  ... 
doi:10.1109/lnet.2019.2902720 fatcat:q6xzjokiybatxgr6c5ri73coia

FlexNGIA: A Flexible Internet Architecture for the Next-Generation Tactile Internet [article]

Mohamed Faten Zhani, Hesham ElBakoury
2019 arXiv   pre-print
We then describe some use-cases where we discuss the potential mechanisms and control loops that could be offered by FlexNGIA in order to ensure the required performance and reliability guarantees for  ...  In order to deploy such futuristic applications and to cater to their performance requirements, recent trends stressed the need for the Tactile Internet, an Internet that, according to the International  ...  Fig. 11 shows the service function chain required for this application.  ... 
arXiv:1905.07137v1 fatcat:zrfmtcjmyrgv5lzf5jjwczx4q4

An Efficient Reliability Guaranteed Deployment Scheme for Service Function Chains

NGOC-Thanh Dinh, Younghan Kim
2019 IEEE Access  
INDEX TERMS Service function chaining, SFC deployment scheme, cost efficiency, on-demand requirement.  ...  This paper encloses an in-depth investigation of a novel cost-efficient reliability-guaranteed deployment scheme for service function chains (SFCs) to tackle the drawbacks of the existing studies for the  ...  SERVICE FUNCTION CHAINING MODEL When a service is requested between end-points, one or several SFCs need to be deployed.  ... 
doi:10.1109/access.2019.2908185 fatcat:353sacigq5hqtm5v4gzl6jkaza

An Efficient Availability Guaranteed Deployment Scheme for IoT Service Chains over Fog-Core Cloud Networks

Ngoc-Thanh Dinh, Younghan Kim
2018 Sensors  
This is a critical issue in network function virtualization (NFV) and NFV-enabled service function chaining (SFC) due to hard- and soft-ware failures.  ...  With limited resources of fog instances, a cost-efficient protection scheme is required.  ...  After the deployment of primary VNFs, if the provisioned chain has not yet met the network service reliability requirement, redundant VNFs are then deployed for the least reliable VNFs along the chain  ... 
doi:10.3390/s18113970 fatcat:jvweift3brb4xcqu73yrbfyd2y

Joint Reliability-aware and Cost Efficient Path Allocation and VNF Placement using Sharing Scheme [article]

Abolfazl Ghazizadeh, Behzad Akbari, Mohammad Mahdi Tajiki
2020 arXiv   pre-print
A sequence of VNFs/services following a logical goal is referred to as a Service Function Chain (SFC).  ...  The movement toward SFC introduces new challenges to those network services which require high reliability. To address this challenge, redundancy schemes are introduced.  ...  Conclusion In order to provide reliable service function chains, a large number of backup functions are required.  ... 
arXiv:1912.06742v2 fatcat:2x75hbhtxrbojjng46lb6htbla

Guest Editors Introduction: Special Issue on Advanced Management of Softwarized Networks

Wolfgang Kellerer, Giovanni Schembra, Jinho Hwang, Noriaki Kamiyama, Joon-Myung Kang, Barbara Martini, Rafael Pasquini, Dimitrios Pezaros, Hongke Zhang, Mohamed Faten Zhani, Thomas Zinner
2021 IEEE Transactions on Network and Service Management  
In "Reliability-Oriented and Resource-Efficient Service Function Chain Construction and Backup," Wang et al.  ...  In "FlexChain: Bridging Parallelism and Placement for Service Function Chains," Xie et al.  ...  , such as software-defined networking and network function virtualization.  ... 
doi:10.1109/tnsm.2021.3058871 fatcat:yg3kanbewvd7lp3nz6b4rzh5vm

Deep Q-Learning for Dynamic Reliability Aware NFV-Based Service Provisioning [article]

Hamed Rahmani Khezri, Puria Azadi Moghadam, Mohammad Karimzadeh Farshbafan, Vahid Shah-Mansouri, Hamed Kebriaei, Dusit Niyato
2018 arXiv   pre-print
One of these challenges is to meet the reliability requirement of the requested services considering the reliability of the commodity servers.  ...  To address such an issue, in this paper, we employ Deep Q-Network (DQN) to model NFV placement problem considering the reliability requirement of the services.  ...  To provide a network service, a set of appropriate VNFs should be sequenced in a chain called service function chain (SFC).  ... 
arXiv:1812.00737v1 fatcat:tnm4e6i3mvelvevnlelzsk3d7u

Reliability-Aware Multi-source Multicast Hybrid Routing in Softwarized Networks

Long Qu, Chadi Assi
2020 IEEE Access  
We deal with a reliable service where reliability is attained by provisioning backup functions for the service.  ...  We first calculate the requirements of VNF backups which account for fewer computing resource consumption.  ...  This work considers then the reliability enhancement for multicast service chaining with redundant virtualized network functions. B.  ... 
doi:10.1109/access.2020.3003697 fatcat:owc47yhfongt7fftfqtihqcu5u

Network Function Parallelization for High Reliability and Low Latency Services

Jianhong Zhou, Gang Feng, Yi Gao
2020 IEEE Access  
NFP can potentially improve the reliability and reduce the delay of service function chains (SFCs).  ...  INDEX TERMS URLLC, NFV, NFP, parallel network service function chain.  ...  The provisioning of a service requires the execution of a set of VNFs, which in turn form a virtual Service Function Chain (SFC).  ... 
doi:10.1109/access.2020.2988719 fatcat:bhgxiwesa5dlplnesfa7ihr4vu

Supply Chain Orchestration Leveraging on MNC Networks and Local Resources: Approach Strategies

Zhengping Li, Robert De Souza, Mark Goh
2016 Journal of Service Science and Management  
This exploratory paper proposes an overarching Supply Chain Orchestration (SCO) framework which leverages on the capabilities of the MNC's networks and the local Logistics Service Providers (LSPs) at a  ...  This framework comprises integrated components including orchestrated Supply Chain Network (SCN), the relationship model of the actors, a "Win-for-All" pro-orchestration model, and the collaboration platform  ...  Second, it helps to maintain supply chain flexibility and resilience for handling surges in resource requirements.  ... 
doi:10.4236/jssm.2016.94036 fatcat:neqsqquwjzadrf6cvegtclwkna

Network orchestration in reliable 5G/NFV/SDN infrastructures

B. Martini, M. Gharbaoui, S. Fichera, P. Castoldi
2017 2017 19th International Conference on Transparent Optical Networks (ICTON)  
In this paper, we elaborate an SDN orchestration solution aiming at the dynamic adaptation of service chain paths thereby addressing high-availability requirements of 5G applications.  ...  We present an SDN orchestrator that periodically monitors the availability of the network and, if necessary, promptly adapts service chain paths to recover from congestion events and to preserve network  ...  In this paper we present an SDN orchestrator aiming at achieving reliable and QoS-enabled service chain paths for 5G services.  ... 
doi:10.1109/icton.2017.8024937 fatcat:6cph4ckzbrewff625bw7z6kmbu


Jingyuan Fan, Zilong Ye, Chaowen Guan, Xiujiao Gao, Kui Ren, Chunming Qiao
2015 Proceedings of the 2015 ACM SIGCOMM Workshop on Hot Topics in Middleboxes and Network Function Virtualization - HotMiddlebox '15  
Network Function Virtualization (NFV) is a promising technique to greatly improve the effectiveness and flexibility of network management through a process called Service Function Chain (SFC) mapping,  ...  However, such an evolution towards software-defined middlebox introduces new challenges to network services which require high reliability.  ...  Faults at one physical equipment can influence multiple service chains, and even its impacts may span over multiple functions in one service chain.  ... 
doi:10.1145/2785989.2786000 dblp:conf/sigcomm/FanYGGRQ15 fatcat:nvyil25p2rasvd436eta3oejpa
« Previous Showing results 1 — 15 out of 172,451 results