1,104 Hits in 9.9 sec

A Survey on Resiliency Techniques in Cloud Computing Infrastructures and Applications

Carlos Colman-Meixner, Chris Develder, Massimo Tornatore, Biswanath Mukherjee
2016 IEEE Communications Surveys and Tutorials  
We comprehensively survey a large body of work focusing on resilience of cloud computing, in each (or a combination) of the server, network, and application components.  ...  The third part focuses on resilience in application design and development.  ...  Some studies propose to adopt software-defined networking (SDN) to deal with this problem [121] .  ... 
doi:10.1109/comst.2016.2531104 fatcat:vzvkai7nkrbbda63fesn7zw4di

No more backups: Toward efficient embedding of survivable virtual networks

Rodrigo R Oliveira, Daniel S Marcon, Leonardo R Bays, Miguel C Neves, Luciana S Buriol, Luciano P Gaspary, Marinho P Barcellos
2013 2013 IEEE International Conference on Communications (ICC)  
High capacity physical links, in particular, constitute good targets since they may be important for a large number of virtual networks.  ...  In this paper, we present a virtual network embedding approach which enables resilience to attacks and efficiency in resource utilization.  ...  SA uses neighbors in an attempt to improve the current solution or to escape a local minimum.  ... 
doi:10.1109/icc.2013.6654841 dblp:conf/icc/OliveiraMBNBGB13 fatcat:pf54ohghmrb5hdjjxtoblr3psa

Fault-Tolerance in the Scope of Software-Defined Networking (SDN)

A. U. Rehman, Rui. L. Aguiar, Joao Paulo Barraca
2019 IEEE Access  
Fault-tolerance is an essential aspect of network resilience. Fault-tolerance mechanisms are required to ensure high availability and high reliability in systems.  ...  The advent of software-defined networking (SDN) has both presented new challenges and opened new paths to develop novel strategies, architectures, and standards to support fault-tolerance.  ...  In order to cope with these issues, controller redundancy [41] , [42] and path backup are considered essential. 2) CONTROLLER PLACEMENT AND ASSIGNMENT Controller placement (how to choose the location  ... 
doi:10.1109/access.2019.2939115 fatcat:wg75akptvrfa5ez4ggdjl4qv2m

Disaster Resilience of Optical Networks: State of the Art, Challenges, and Opportunities

Jacek Rak, Rita Girão-Silva, Teresa Gomes, Georgios Ellinas, Burak Kantarci, Massimo Tornatore
2021 Optical Switching and Networkning Journal  
To this end, software defined satellite networks are utilized to evacuate data from DCs towards their next safe destinations in the backbone network.  ...  The global view of the network topology, the switches and the information on performance metrics (bandwidth or latency of links) provided by the centralized controller in a software defined network, is  ...  Teresa Gomes is an Associate Editor of Springer's Journal of Network and Systems Management.  ... 
doi:10.1016/j.osn.2021.100619 fatcat:lun23luh5baw3c2gunkzla2fk4

A survey on network resiliency methodologies against weather-based disruptions

Massimo Tornatore, Joao Andre, Peter Babarczi, Torsten Braun, Eirik Folstad, Poul Heegaard, Ali Hmaity, Marija Furdek, Luisa Jorge, Wojciech Kmiecik, Carmen Mas Machuca, Lucia Martins (+7 others)
2016 2016 8th International Workshop on Resilient Networks Design and Modeling (RNDM)  
The recently-formed EU-funded RECODIS project aims at coordinating and fostering research collaboration in Europe on disaster resiliency in communication networks.  ...  While the majority of studies regarding weather-based disruptions deals with wireless network (as wireless channel is directly affected by weather conditions), in this survey we cover also disasterresiliency  ...  ACKNOWLEDGMENT We would like to thank the participants of WG2 (Weatherbased disruptions) of COST Action CA15127 whom indirectly collaborated in this task: Rasa Bruzgiene, Lina Narbutaite, Adomkus Tomas  ... 
doi:10.1109/rndm.2016.7608264 dblp:conf/rndm/TornatoreABBFHH16 fatcat:ff2doajrz5e5nas6oh7ljabp64

Resilient network design: challenges and future directions

David Tipper
2013 Telecommunications Systems  
This includes the use of a highly available network spine embedded in a physical network together with efficient crosslayer mapping to offer survivability and differentiation of traffic into classes of  ...  resilience.  ...  H 2 1 =         An additional cause of fault propagation is shared risk link groups (SRLGs) which are defined by a set of links that fail together due to physical placement of cabling in conduits  ... 
doi:10.1007/s11235-013-9815-x fatcat:eansrwehibd45aewsxb6zcettm

HP-SFC: Hybrid Protection Mechanism Using Source Routing for Service Function Chaining

Syed M. Raza, Haekwon Jeong, Moonseong Kim, Hyunseung Choo
2021 Applied Sciences  
define an installation policy for backup paths.  ...  The SFC protection mechanism is one way to ensure high availability, and it is achieved by proactively deploying backup SFs and installing backup paths in the network.  ...  Conflicts of Interest: The authors declare no conflict of interest.  ... 
doi:10.3390/app11115245 fatcat:gahzfbrzqvez7ny4swhgdr4cyy

DoS-resilient virtual networks through multipath embedding and opportunistic recovery

Rodrigo R. Oliveira, Leonardo R. Bays, Daniel S. Marcon, Miguel C. Neves, Luciana S. Buriol, Luciano P. Gaspary, Marinho P. Barcellos
2013 Proceedings of the 28th Annual ACM Symposium on Applied Computing - SAC '13  
In this paper, we present a novel virtual network allocation approach which explores the trade-off between resilience to attacks and efficiency in resource utilization.  ...  Numerical results show the level of resilience to attacks and the low cost demanded by our approach.  ...  MITIGATING DISRUPTIONS In this section, we present an approach for improving the resilience of virtual networks against denial of service attacks.  ... 
doi:10.1145/2480362.2480477 dblp:conf/sac/OliveiraBMNBGB13 fatcat:rjwozeobq5cu7kofox7uwxcfru

On Resilience in Cloud Computing

Thomas Welsh, Elhadj Benkhelifa
2020 ACM Computing Surveys  
For each layer, the most common techniques with limitations are derived including an actor's strength in influencing resilience in the cloud with each technique.  ...  We conclude with some future challenges to the field of resilient cloud computing.  ...  The latest studies push towards software defined techniques and evaluation/optimisation with upper-layer techniques.  ... 
doi:10.1145/3388922 fatcat:533eamo7rbay3drlgxdzj2kb4y

A Survey On The Controller Placement Problem In SDN

Lakshita Agarwal, Chetan Singh Negi, Jalaj Sharma, Sunita Jalal
2021 International journal of advanced networking and applications  
The Controller Placement Problem (CPP) is one of the most important tasks that have to be done in the Software Defined Networks.  ...  In SDN, the control plane and the data plane can be separated with the help of a well-defined programming interface between the SDN controllers and the switches.  ...  ., worked on the placement of the controllers in the software defined network, so that the reliability of the control network gets maximized.  ... 
doi:10.35444/ijana.2021.13204 fatcat:g57meoe5jbeijczbru5j23fhfi

Opportunistic resilience embedding (ORE): Toward cost-efficient resilient virtual networks

Rodrigo R. Oliveira, Daniel S. Marcon, Leonardo R. Bays, Miguel C. Neves, Luciano P. Gaspary, Deep Medhi, Marinho P. Barcellos
2015 Computer Networks  
One of its main advantages is the use of isolation to limit the scope of attacks -that is, avoiding traffic from one virtual network to interfere with the others.  ...  Particularly, high capacity physical links constitute good targets since they may be important for a large number of virtual networks.  ...  SA uses neighbors in an attempt to improve the current solution or escape a local minimum.  ... 
doi:10.1016/j.comnet.2015.07.010 fatcat:w67ih5ztzbcrhdgdemief43nu4

A Survey of Controller Placement Problem in Software Defined Networks [article]

Abha Kumari, Ashok Singh Sairam
2019 arXiv   pre-print
Distributed SDN along with its benefits brings along the problem of the number of controllers required and their placement in the network.  ...  Software Defined Network (SDN) is an emerging network paradigm which provides a centralized view of the network by decoupling the network control plane from the data plane.  ...  [125] study the problem of controller placement to improve latency as well as network resilience.  ... 
arXiv:1905.04649v1 fatcat:cqu3jm5ct5fdlmrv5zeicdhmie

Mitigating the Performance-Efficiency Tradeoff in Resilient Memory Disaggregation [article]

Youngmoon Lee, Hasan Al Maruf, Mosharaf Chowdhury, Asaf Cidon, Kang G. Shin
2020 arXiv   pre-print
similar to in-memory replication with 1.6x lower memory overhead.  ...  We present the design and implementation of a low-latency, low-overhead, and highly available resilient disaggregated cluster memory.  ...  On the other hand, it improves latency and throughput of the benchmark applications by up to 64.78× and 20.61×, respectively, over SSD backup-based resilience with only 1.25× higher memory overhead.  ... 
arXiv:1910.09727v2 fatcat:evarof46wzc3ve5tuemrilvnva

A Dynamic Placement Mechanism of Service Function Chaining Based on Software-defined Networking

2018 KSII Transactions on Internet and Information Systems  
To cope with the explosive growth of Internet services, Service Function Chaining (SFC) based on Software-defined Networking (SDN) is an emerging and promising technology that has been suggested to meet  ...  Determining the placement of Virtual Network Functions (VNFs) and routing paths that optimize the network utilization and resource consumption is a challenging problem, particularly without violating service  ...  Both the promising Software-defined Networking (SDN) [4] network architecture and Network Function Virtualization (NFV) [5] technology can solve these outlined problems.  ... 
doi:10.3837/tiis.2018.10.002 fatcat:vgggie3mgffojp5d2ocl3muxwq

Maintaining Mobile Network Coverage Availability in Disturbance Scenarios

Joonas Säe, Jukka Lempiäinen
2016 Mobile Information Systems  
An increase of 100% to 500% can be achieved in the duration of "backup coverage" in cellular networks with backup batteries when the percentage of active eNB sites is reduced down to 20%.  ...  Disturbance and disaster scenarios prevent the normal utilization of mobile networks. The aim of this study is to maintain the availability of cellular networks in disturbance scenarios.  ...  This minimum configuration can be utilized with battery backups to extend the network availability called backup coverage.  ... 
doi:10.1155/2016/4816325 fatcat:b3othadzlzhhndyp6lyb2dj2ly
« Previous Showing results 1 — 15 out of 1,104 results