Results 241 to 250 of about 26,223 (284)

Joint Optimization of Service Function Placement and Flow Distribution for Service Function Chaining

IEEE Journal on Selected Areas in Communications, 2017
In this paper, we consider the problem of optimal dynamic service function (SF) placement and flow routing in a SF chaining (SFC) enabled network. We formulate a multi-objective optimization problem to maximize the acceptable flow rate and to minimize the energy cost for multiple service chains.
Dongeun Suh, Sangheon Pack, György Dán
exaly   +2 more sources

On Achieving Trustworthy Service Function Chaining

IEEE Transactions on Network and Service Management, 2021
Service Function Chaining (SFC) has recently received considerable attentions from both industry and academia, due to its potential for improving the flexibility of provisioning and composition of Virtualized Network Functions (VNFs) to suit application-specific needs.
Montida Pattaranantakul, Qipeng Song, Yanmei Tian, Licheng Wang, Zonghua Zhang, Ahmed Meddahi, Chalee Vorakulpipat   +6 more
openaire   +1 more source

Service Function Chaining in Wildfire Scenarios

2021 IEEE 7th International Conference on Network Softwarization (NetSoft), 2021
Mission Critical Services (MCS) are associated with public safety networks and their support has been progressively introduced in LTE/5G standards. MCS are composed by distinct functions that are required for voice and critical data communications, along with strict security requirements.
Bruno Miguel Sousa, Henrique M. Simões Silva, Noé Godinho, Marília Curado   +3 more
openaire   +1 more source

Optimal placement of service function in service function chaining

2016 Eighth International Conference on Ubiquitous and Future Networks (ICUFN), 2016
In service function chaining (SFC), an ordered list of service functions (SFs) is specified for network services, and those SFs should be placed in appropriate service nodes (SNs) to satisfy the given service latency requirement. In this paper, we formulate an integer non-linear programming (INLP) problem for the optimal placement of SFs when the ...
Haneul Ko, Dongeun Suh, Hosung Baek, Sangheon Pack, Jiyoung Kwak   +4 more
openaire   +1 more source

Service failure diagnosis in service function chain

2017 19th Asia-Pacific Network Operations and Management Symposium (APNOMS), 2017
Network function virtualization (NFV) is a powerful emerging technique with widespread applicability. It provides Network Functions (NFs) through software virtualization techniques that decouple software and hardware. Some connected network functions constitute a service function chain (SFC).
Shilei Zhang, Ying Wang 0002, Wenjing Li 0001, Xuesong Qiu 0001   +3 more
openaire   +1 more source

Distributed service function failover mechanism in service function chaining

2017 International Conference on Information Networking (ICOIN), 2017
In service function chaining (SFC), end-to-end traffic flows are classified and processed by an ordered set of service functions (SFs). When SF in the chain fails, the corresponding traffic flows cannot be processed further to reach the destination until the failed SF recovers.
Dongeun Suh, Hosung Baek, Seokwon Jang, Sol Han, Sangheon Pack   +4 more
openaire   +1 more source

Fault Tolerant Service Function Chaining

Proceedings of the Annual conference of the ACM Special Interest Group on Data Communication on the applications, technologies, architectures, and protocols for computer communication, 2020
Network traffic typically traverses a sequence of middleboxes forming a service function chain, or simply a chain. Tolerating failures when they occur along chains is imperative to the availability and reliability of enterprise applications. Making a chain fault-tolerant is challenging since, in the event of failures, the state of faulty middleboxes ...
Milad Ghaznavi, Elaheh Jalalpour, Bernard Wong 0001, Raouf Boutaba, Ali José Mashtizadeh   +4 more
openaire   +1 more source

Coordinated Allocation of Service Function Chains

2015 IEEE Global Communications Conference (GLOBECOM), 2014
Network Functions Virtualization (NFV) is an emerging initiative to overcome increasing operational and capital costs faced by network operators due to the need to physically locate network functions in specific hardware appliances. In NFV, standard IT virtualization evolves to consolidate network functions onto high volume servers, switches and ...
Michael Till Beck, Juan Felipe Botero
openaire   +1 more source

Bounding Reliability in Service Function Chaining

2020 43rd International Convention on Information, Communication and Electronic Technology (MIPRO), 2020
In Network Function Virtualization (NFV), the re-liability of Service Function Chain (SFC) is one of the most critical performance parameters. Since each SFC has different composition, placement, configuration and deployment requirements, the exact analysis of SFC reliability is a challenge. In this paper, we address this challenge by analyzing the end-
Anna Engelmann, Wolfgang Bziuk, Admela Jukan   +2 more
openaire   +1 more source

Resilient allocation of service Function chains

2016 IEEE Conference on Network Function Virtualization and Software Defined Networks (NFV-SDN), 2016
Network Functions Virtualization (NFV) is an emerging initiative where standard IT virtualization evolves to consolidate network functions onto high volume servers, switches and storage that can be located anywhere in the network. One of the main challenges to implement NFV is the problem of allocating Virtual Network Functions (VNFs) on top of the ...
Michael Till Beck, Juan Felipe Botero, Kai Samelin   +2 more
openaire   +1 more source