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المؤلفSun, Gang
المؤلفChen, Zhenrong
المؤلفYu, Hongfang
المؤلفDu, Xiaojiang
المؤلفGuizani, Mohsen
تاريخ الإتاحة2022-11-10T09:47:20Z
تاريخ النشر2019
اسم المنشورIEEE Access
المصدرScopus
المصدر2-s2.0-85077950837
معرّف المصادر الموحدhttp://dx.doi.org/10.1109/ACCESS.2019.2930295
معرّف المصادر الموحدhttp://hdl.handle.net/10576/36113
الملخصIn recent years, much attention has been focused on deploying service function chains (SFCs), each of which is composed of a set of virtual network functions (VNFs) in a specified order. This is a promising approach for enabling cloud service providers to deploy user service requests more flexibly while saving costs. However, less effort has been directed toward meeting heterogeneous needs, such as high throughput or low latency of user service requests with heterogeneous bandwidth demands, especially in data center networks (DCNs). In this paper, we propose an efficient orchestration algorithm for online SFC requests. It first splits a large flow into a number of subflows and replicates the same number of sub-SFCs. Each subflow is redirected to one of these "parallelized" sub-SFCs, which is termed a sub-user request. Then, each sub-user request is deployed based on a worst-fit strategy, and VNFs in the same SFC are instantiated on the same server to the greatest possible extent. Our algorithm is expected to enable network load balancing, reducing the delay experienced by small flows while improving the acceptance ratio for user requests. Finally, the simulation results show that the proposed algorithm outperforms other comparable algorithms. 2019 Institute of Electrical and Electronics Engineers Inc.. All rights reserved.
راعي المشروعThis work was supported in part by the National Natural Science Foundation of China under Grant 61571098, and in part by the 111 Project under Grant B14039.
اللغةen
الناشرInstitute of Electrical and Electronics Engineers Inc.
الموضوعData center network
Load balancing
Orchestration
Service function chain
Splitting
العنوانOnline parallelized service function chain orchestration in data center networks
النوعArticle
الصفحات100147-100161
رقم المجلد7
dc.accessType Open Access


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