The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Keupayaan Software Defined Networking (SDN) untuk melaraskan gelagat rangkaian secara dinamik dan menyokong dasar penghalaan yang terperinci menjadi semakin menarik melangkaui sempadan domain Pusat Data, di mana SDN telah memperoleh momentum yang besar. Walau bagaimanapun, penggunaan SDN yang lebih meluas dalam rangkaian ISP (Penyedia Perkhidmatan Internet) masih tidak pasti disebabkan oleh kebimbangan mengenai kebolehskalaan pengurusan trafik berpusat dalam persekitaran berskala besar. Ini amat bermasalah apabila ISP menawarkan perkhidmatan pautan maya, yang membayangkan pemindahan data terjamin prestasi antara dua titik rangkaian. Penyelesaian kami ialah pendekatan baharu kepada pemetaan pautan maya dalam rangkaian ISP berasaskan SDN. Dalam skop masalah, kami menangani kejuruteraan trafik (TE), peruntukan QoS dan masalah pemulihan kegagalan. Untuk mengurangkan beban pengawal, usaha pengiraan dan kelewatan pemprosesan, kami memperkenalkan pemisahan fungsi antara penghalaan dalam talian dan TE. Fungsi TE dilakukan secara berkala, dengan berkala boleh dikonfigurasikan. Untuk mengurangkan overhed kawalan, kami mengehadkan masalah pengoptimuman trafik kepada pengimbangan beban ke atas berbilang terowong statik. Ini membolehkan pengekalan penghala MPLS tradisional dalam teras rangkaian dan untuk mencapai pemulihan pautan maya yang pantas sekiranya berlaku kegagalan pautan fizikal. Algoritma penghalaan dan kawalan kemasukan dalam talian telah direka bentuk dengan matlamat kerumitan yang rendah, dan untuk meminimumkan kemas kini Jadual Aliran. Dalam kajian simulasi kami, kami membandingkan penyelesaian pemetaan pautan maya yang dicadangkan dengan penyelesaian yang mengeksploitasi fleksibiliti penghalaan dalam rangkaian berdaya SDN sepenuhnya. Kami mendapati bahawa kerugian daya tampung akibat penggunaan terowong trafik statik adalah agak kecil, manakala overhed kawalan dikurangkan dengan ketara. Prototaip pesawat kawalan SDN yang dicadangkan dibangunkan dan disahkan dalam emulator Mininet.
Slavica TOMOVIĆ
University of Montenegro
Igor RADUSINOVIĆ
University of Montenegro
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Salinan
Slavica TOMOVIĆ, Igor RADUSINOVIĆ, "An Effective Use of SDN for Virtual-Link Provisioning in ISP Networks" in IEICE TRANSACTIONS on Communications,
vol. E102-B, no. 4, pp. 855-864, April 2019, doi: 10.1587/transcom.2018EBP3191.
Abstract: The ability of Software Defined Networking (SDN) to dynamically adjust the network behaviour and to support fine-grained routing policies becomes increasingly attractive beyond the boundaries of Data Centre domains, where SDN has already gained enormous momentum. However, the wider adoption of SDN in ISP (Internet Service Provider) networks is still uncertain due to concerns about the scalability of a centralized traffic management in large-scale environments. This is particularly problematic when ISP offers virtual-link services, which imply a performance guaranteed data transfer between two network points. Our solution is a new approach to virtual-link mapping in SDN-based ISP networks. Within the problem's scope, we address traffic engineering (TE), QoS provisioning and failure recovery issues. In order to decrease the controller load, computational effort, and processing delay, we introduce a function split between online routing and TE. The TE functions are performed periodically, with configurable periodicity. In order to reduce the control overhead, we restrict the traffic optimization problem to load balancing over multiple static tunnels. This allows retention of the traditional MPLS routers in the network core and to achieve fast virtual-link restoration in case of physical-link failures. The online routing and admission control algorithms have been designed with the goal of low complexity, and to minimize Flow-table updates. In our simulation study, we compare the proposed virtual-link mapping solution with the solutions that exploit routing flexibility in fully SDN-enabled networks. We find that the throughput loss due to the use of static traffic tunnels is relatively small, while the control overhead is reduced significantly. A prototype of the proposed SDN control-plane is developed and validated in the Mininet emulator.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.2018EBP3191/_p
Salinan
@ARTICLE{e102-b_4_855,
author={Slavica TOMOVIĆ, Igor RADUSINOVIĆ, },
journal={IEICE TRANSACTIONS on Communications},
title={An Effective Use of SDN for Virtual-Link Provisioning in ISP Networks},
year={2019},
volume={E102-B},
number={4},
pages={855-864},
abstract={The ability of Software Defined Networking (SDN) to dynamically adjust the network behaviour and to support fine-grained routing policies becomes increasingly attractive beyond the boundaries of Data Centre domains, where SDN has already gained enormous momentum. However, the wider adoption of SDN in ISP (Internet Service Provider) networks is still uncertain due to concerns about the scalability of a centralized traffic management in large-scale environments. This is particularly problematic when ISP offers virtual-link services, which imply a performance guaranteed data transfer between two network points. Our solution is a new approach to virtual-link mapping in SDN-based ISP networks. Within the problem's scope, we address traffic engineering (TE), QoS provisioning and failure recovery issues. In order to decrease the controller load, computational effort, and processing delay, we introduce a function split between online routing and TE. The TE functions are performed periodically, with configurable periodicity. In order to reduce the control overhead, we restrict the traffic optimization problem to load balancing over multiple static tunnels. This allows retention of the traditional MPLS routers in the network core and to achieve fast virtual-link restoration in case of physical-link failures. The online routing and admission control algorithms have been designed with the goal of low complexity, and to minimize Flow-table updates. In our simulation study, we compare the proposed virtual-link mapping solution with the solutions that exploit routing flexibility in fully SDN-enabled networks. We find that the throughput loss due to the use of static traffic tunnels is relatively small, while the control overhead is reduced significantly. A prototype of the proposed SDN control-plane is developed and validated in the Mininet emulator.},
keywords={},
doi={10.1587/transcom.2018EBP3191},
ISSN={1745-1345},
month={April},}
Salinan
TY - JOUR
TI - An Effective Use of SDN for Virtual-Link Provisioning in ISP Networks
T2 - IEICE TRANSACTIONS on Communications
SP - 855
EP - 864
AU - Slavica TOMOVIĆ
AU - Igor RADUSINOVIĆ
PY - 2019
DO - 10.1587/transcom.2018EBP3191
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E102-B
IS - 4
JA - IEICE TRANSACTIONS on Communications
Y1 - April 2019
AB - The ability of Software Defined Networking (SDN) to dynamically adjust the network behaviour and to support fine-grained routing policies becomes increasingly attractive beyond the boundaries of Data Centre domains, where SDN has already gained enormous momentum. However, the wider adoption of SDN in ISP (Internet Service Provider) networks is still uncertain due to concerns about the scalability of a centralized traffic management in large-scale environments. This is particularly problematic when ISP offers virtual-link services, which imply a performance guaranteed data transfer between two network points. Our solution is a new approach to virtual-link mapping in SDN-based ISP networks. Within the problem's scope, we address traffic engineering (TE), QoS provisioning and failure recovery issues. In order to decrease the controller load, computational effort, and processing delay, we introduce a function split between online routing and TE. The TE functions are performed periodically, with configurable periodicity. In order to reduce the control overhead, we restrict the traffic optimization problem to load balancing over multiple static tunnels. This allows retention of the traditional MPLS routers in the network core and to achieve fast virtual-link restoration in case of physical-link failures. The online routing and admission control algorithms have been designed with the goal of low complexity, and to minimize Flow-table updates. In our simulation study, we compare the proposed virtual-link mapping solution with the solutions that exploit routing flexibility in fully SDN-enabled networks. We find that the throughput loss due to the use of static traffic tunnels is relatively small, while the control overhead is reduced significantly. A prototype of the proposed SDN control-plane is developed and validated in the Mininet emulator.
ER -