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Fast Distributed Backup Placement in Sparse and Dense Networks [article]

Leonid Barenboim, Gal Oren
2019 arXiv   pre-print
We consider the Backup Placement problem in networks in the CONGEST distributed setting.  ...  Specifically, we show that O(1)-approximation to optimal backup placement can be computed deterministically in O(1) rounds in graphs that model wireless networks, certain social networks, claw-free graphs  ...  Introduction We consider the Backup Placement problem in networks. The problem is defined as follows.  ... 
arXiv:1902.08819v2 fatcat:f5u7pdhkmrhn7fri3i5lh65vim

Distributed K-Backup Placement and Applications to Virtual Memory in Real-World Wireless Networks [article]

Gal Oren, Leonid Barenboim
2020 arXiv   pre-print
The Backup Placement problem in networks in the CONGEST distributed setting considers a network graph G = (V,E), in which the goal of each vertex v ∈ V is selecting a neighbor, such that the maximum number  ...  In addition we suggest two complementary algorithms which employ K-Backup-Placement to obtain efficient virtual memory schemes for wireless networks.  ...  The Backup Placement Problem in Networks The Distributed Backup Placement problem was introduced by Halldorsson, Kohler, Patt-Shamir, and Rawitz [10] in 2015.  ... 
arXiv:2005.04198v2 fatcat:dit2y2kxybfcxdm73ao373wwla

Network design requirements for disaster resilience in IaaS clouds

Rodrigo Souza Couto, Stefano Secci, Miguel Mitre Campista, Luis Maciel Kosmalski Costa
2014 IEEE Communications Magazine  
This article provides guidelines to design a data center network infrastructure to support a disaster-resilient IaaS Cloud.  ...  recover from disasters, and allow the identification of important domains that deserve further research efforts, such as the choice of data center site locations and disaster-resilient virtual machine placement  ...  In the second phase, the placement mechanism decides where to store the backup of each VM.  ... 
doi:10.1109/mcom.2014.6917402 fatcat:vvy7jpd4qbg4zd7cmjpja6ci2e

A Reliability Study of Parallelized VNF Chaining [article]

Anna Engelmann, Admela Jukan
2017 arXiv   pre-print
In this paper, we study end-to-end service reliability in Data Center Networks (DCN) with flow and Service Function Chains (SFCs) parallelism.  ...  , resulting in parallel sub-SFCs; and iii) all sub-flows are distributed over multiple shortest paths and processed in parallel by parallel sub-SFCs.  ...  We consider placement strategies of the backup and active SFCs as concentrated in one server, or distributed over the network.  ... 
arXiv:1711.08417v1 fatcat:fdwunep5h5govj3zt6tdfqo3uu

Replica placement for high availability in distributed stream processing systems

Thomas Repantis, Vana Kalogeraki
2008 Proceedings of the second international conference on Distributed event-based systems - DEBS '08  
We have integrated our replica placement protocol in Synergy, our distributed stream processing middleware.  ...  In this paper we look at the problem of high availability in such a distributed stream processing system.  ...  in a busy network for the example of Figure 1 .  ... 
doi:10.1145/1385989.1386012 dblp:conf/debs/RepantisK08 fatcat:gk5izwcsnvg57biwcuugcj4n2a

Server placement with shared backups for disaster-resilient clouds

Rodrigo S. Couto, Stefano Secci, Miguel Elias M. Campista, Luís Henrique M.K. Costa
2015 Computer Networks  
A key strategy to build disaster-resilient clouds is to employ backups of virtual machines in a geo-distributed infrastructure.  ...  Considering this kind of service, in this work, we propose an optimization problem to place servers in a wide area network.  ...  The literature about resilient physical server placement considers a traditional DC distribution, such as those employed by content delivery networks (CDNs) [6, 7] .  ... 
doi:10.1016/j.comnet.2015.09.039 fatcat:4ikoq3j2xzg6bc4tmfwocr6bxq

Flexible replica placement for optimized P2P backup on heterogeneous, unreliable machines

Piotr Skowron, Krzysztof Rzadca
2015 Concurrency and Computation  
The bandwidth of multiple nodes (scattered through the network) scales better than of a single server as the network load is more evenly distributed causing less bottlenecks.  ...  In contrast to a standard P2P storage system using directly a distributed hash table (DHT), the contracts allow our system to optimize replicas' placement depending on a specific optimization strategy  ...  Second, a protocol (Section 4.2) manages replica placement in the network in order to maximize the utility of the currently worst placement (max min optimization).  ... 
doi:10.1002/cpe.3491 fatcat:2xpwma4udvgn7mc2xyxlyckhha

Critical Routers Identification to Handle Distribution Fiber Failure in Wireless Optical Broadband Access Network (WOBAN)

Uma Rathore Bhatt, Sparsh Sadafal, Kishan Chaurasiya, Ayush Awasthi
2020 Procedia Computer Science  
Here critical wireless routers are necessary to transfer disrupted tra affected ONU to its backup ONU in case of failure.  ...  Here critical wireless routers are necessary to transfer disrupted tra affected ONU to its backup ONU in case of failure.  ...  Algorithm 1:For optimum placement of routers in FiWi networks to maximize user coverage Fig. 2 . 2 Optimum placement of 17 routers to maximize the user coverage percentage In Fig. 3 . 3 User Coverage  ... 
doi:10.1016/j.procs.2020.04.236 fatcat:m6kv43tuwfddnmagb72q56epu4

Fault-Tolerant Relay Node Placement in Wireless Sensor Networks for Surveillance of Overhead Transmission Lines

Kaixuan Wang, Jian Yang, Mukhtaj khan
2022 Mathematical Problems in Engineering  
Wireless sensor networks provide a promising technology to surveil overhead transmission lines in smart grid communication.  ...  In this paper, we follow the framework and further explore deployment problems systematically. Firstly, we present a fault-tolerance placement model.  ...  Science Foundation of Ministry of Education of China (nos. 21YJCZH197 and 20YJA910005) and was also partially supported by Scientific and Technological Innovation Programs of Higher Education Institutions in  ... 
doi:10.1155/2022/6077374 fatcat:6fdwc2avfbafzjc3v7vo5vubse

Exploring heterogeneity of unreliable machines for P2P backup

Piotr Skowron, Krzysztof Rzadca
2013 2013 International Conference on High Performance Computing & Simulation (HPCS)  
Such optimization is particularly appealing in the context of backup: replicas can be geographically dispersed, the load sent over the network can be minimized, or the optimization goal can be to minimize  ...  In contrast to standard p2p storage systems using directly a DHT, the contracts allow our system to optimize replicas' placement depending on a specific optimization strategy, and so to take advantage  ...  The bandwidth of the nodes connected in a distributed way scales better than of a single server; the load on the network is more evenly distributed causing less bottlenecks.  ... 
doi:10.1109/hpcsim.2013.6641398 dblp:conf/ieeehpcs/SkowronR13 fatcat:nr6ia5nkjvcklk7neg63nm42jq

Intelligent Placement of Datacenters for Internet Services

Inigo Goiri, Kien Le, Jordi Guitart, Jordi Torres, Ricardo Bianchini
2011 2011 31st International Conference on Distributed Computing Systems  
placement -Network latencies -Availability • CAPEX costs -Distance to electricity and networking infrastructure -Land and construction (maximum PUE) -Power delivery, cooling, backup equipment  ...  Louis Cost (thousand dollars per month) 21 Cost of a 60k-server chiller-less DC network 0 2 4 6 8 10 12 14 30 50 70 90 110 Cost (in million dollars) Maximum  ... 
doi:10.1109/icdcs.2011.19 dblp:conf/icdcs/GoiriLGTB11 fatcat:limvmi33ofag5fwyn7ohtdx7xu

Unprecedented Smart Algorithm for Uninterrupted SDN Services During DDoS Attack

Muhammad Reazul Haque, Saw Chin Tan, Zulfadzli Yusoff, Kashif Nisar, Rizaludin Kaspin, Iram Haider, Sana Nisar, J. P. C. Rodrigues, Bhawani Shankar Chowdhry, Muhammad Aslam Uqaili, Satya Prasad Majumder, Danda B. Rawat (+2 others)
2022 Computers Materials & Continua  
In the design and planning of next-generation Internet of Things (IoT), telecommunication, and satellite communication systems, controller placement is crucial in software-defined networking (SDN).  ...  In this paper, a smart algorithm for planning SDN smart backup controllers under DDoS attack scenarios has proposed.  ...  the smart backup controller type b at all node n, bcp = The smart backup controller placement, Temporary smart backup controller placement list T bcp list = 0, Avl S = The available data packet in the  ... 
doi:10.32604/cmc.2022.018505 fatcat:sxw7ml6puvflzi66wn2pjmfb2a

Optimum placement of multiple optical network units (ONUs) in optical-wireless hybrid access networks

S. Sarkar, B. Mukherjee, S. Dixit
2006 2006 Optical Fiber Communication Conference and the National Fiber Optic Engineers Conference  
We investigate the optimal placement of multiple ONUs in such a network.  ...  Hybrid optical-wireless access networks can capture the best of both worlds -reliability and high capacity of optical communication and flexibility of wireless networks.  ...  t a l 1 1 6 2 1 1 0 3 4 1 4 3 1 0 Conclusion In this work, we investigated the problem of optimal placement of multiple ONUs in a hybrid optical-wireless broadband access network.  ... 
doi:10.1109/ofc.2006.216015 fatcat:cqgamfenh5ddjao3ja44l63isu

Controller Backup and Replication for Reliable Multi-domain SDN

2020 KSII Transactions on Internet and Information Systems  
In a multi-domain SDN network, it is of great importance to ensure a reliable control plane.  ...  Software defined networking (SDN) is considered to be one of the most promising paradigms in the future.  ...  placement approach from aspects of the amount of the backup controller and the average reliability of the network in different network scales and different failure probabilities of the controllers.  ... 
doi:10.3837/tiis.2020.12.006 fatcat:qrjjpylzezd7hpwvd6ldgzhkjy

Exploring heterogeneity of unreliable machines for p2p backup [article]

Piotr Skowron, Krzysztof Rzadca
2013 arXiv   pre-print
Such optimization is particularly appealing in the context of backup: replicas can be geographically dispersed, the load sent over the network can be minimized, or the optimization goal can be to minimize  ...  In contrast to standard p2p storage systems using directly a DHT, the contracts allow our system to optimize replicas' placement depending on a specific optimization strategy, and so to take advantage  ...  Second, a protocol manages replica placement in the network in order to maximize the utility of the currently worst placement (max min optimization). A.  ... 
arXiv:1212.0427v2 fatcat:lrwihapfmjan7cfk4zb3xvbcle
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