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المؤلفAyoubi, Sara
المؤلفAssi, Chadi
المؤلفChen, Yiheng
المؤلفKhalifa, Tarek
المؤلفShaban, Khaled Bashir
تاريخ الإتاحة2021-02-08T09:14:55Z
تاريخ النشر2017
اسم المنشورJournal of Network and Computer Applications
المصدرScopus
معرّف المصادر الموحدhttp://dx.doi.org/10.1016/j.jnca.2016.11.009
معرّف المصادر الموحدhttp://hdl.handle.net/10576/17640
الملخصProviding reliability guarantees for services hosted in cloud data center networks is a well studied problem that received much attention from the literature in recent years. Yet, the existing literature failed to account for the mode of communication that these hosted services may exhibit. Rather, it is assumed that the constituent Virtual Machines (VMs) are always exchanging traffic in a one-to-one communication mode. This paper is concerned with the problem of restoring failed services with a one-to-many communication mode, the mode of communication for a multitude of multicast applications and services hosted today in the cloud. Through motivational examples we show that the problem of restoring multicast Virtual Networks (VNs) greatly differs from that of unicast services, thereby demanding separate attention. To this extent, we formally define the problem of restoring multicast services in event of facility node failure, and we mathematically formulate it using an Integer Linear Programming (ILP) model. Further, we propose REAL: a multicast virtual network re storation al gorithm. REAL distinguishes the failure of multicast source node from that of multicast terminal nodes, and adopts a hop-to-hop search to handle receiver or terminal node failures, and a path convergence approach to recover from source node failures. We evaluate our proposed schemes against a Greedy and a Steiner-based restoration schemes, and we show that our suggested method outperforms its peers in terms of restoration ratio and total achievable revenue.
راعي المشروعThis work was made possible by the NPRP 5 - 137 - 2 - 045 grant from the Qatar National Research Fund (a member of Qatar Foundation). This work has also been partially supported by NSERC Discovery Grant. The statements made herein are solely the responsibility of the authors.
اللغةen
الناشرAcademic Press
الموضوعCloud computing
Multicast
Survivability
Virtualization
العنوانRestoration methods for cloud multicast virtual networks
النوعArticle
الصفحات180-190
رقم المجلد78
dc.accessType Abstract Only


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