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
Kertas kerja ini mencadangkan untuk melaksanakan perkhidmatan kadar bingkai terjamin (GFR) menggunakan mekanisme kawalan kadar bit (ABR) yang tersedia dalam rangkaian berskala besar. GFR sedang diseragamkan sebagai kategori perkhidmatan ATM baharu untuk menyediakan jaminan kadar sel minimum (MCR) kepada setiap saluran maya (VC) pada tahap bingkai. Walaupun ABR juga boleh menyokong MCR, sumber mesti melaraskan kadar pelepasan selnya mengikut petunjuk kesesakan rangkaian. Sebaliknya, perkhidmatan GFR ditujukan untuk pengguna yang tidak dilengkapi untuk mematuhi peraturan tingkah laku sumber yang diperlukan oleh ABR. Dijangka ramai pengguna sedia ada akan termasuk dalam kategori ini. Sebagai salah satu pelaksanaan GFR, pusingan berwajaran (WRR) dengan baris gilir per-VC pada setiap suis terkenal. Walau bagaimanapun, WRR sukar untuk dilaksanakan dalam suis yang menyokong sejumlah besar VC kerana ia perlu menentukan dalam satu masa sel baris gilir VC mana yang perlu disampaikan. Selain itu, ia mungkin mengakibatkan penggunaan lebar jalur yang tidak berkesan pada peringkat rangkaian kerana mekanisme kawalannya ditutup pada tahap nod. Sebaliknya, kemajuan dalam penyeragaman perkhidmatan ABR telah membawa kepada pembangunan beberapa algoritma kawalan ABR yang boleh mengendalikan sejumlah besar sambungan. Oleh itu, kami mencadangkan untuk melaksanakan GFR menggunakan mekanisme kawalan ABR yang telah dibangunkan yang boleh mengatasi banyak sambungan. Ia terdiri daripada mekanisme kawalan kadar eksplisit (ER) dan mekanisme sumber maya/destinasi maya (VS/VD). Memperuntukkan VS/VD kepada suis tepi dan kawalan ER kepada suis tulang belakang membolehkan kami menggunakan kawalan ABR sehingga pintu masuk rangkaian, yang menghasilkan penggunaan lebar jalur yang berkesan pada peringkat rangkaian. Kaedah kami juga memungkinkan untuk berkongsi sumber antara sambungan GFR dan ABR, yang mengurangkan kos pautan. Melalui analisis simulasi, kami menunjukkan bahawa kaedah kami boleh berfungsi lebih baik daripada WRR di bawah pelbagai keadaan trafik.
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Salinan
Ryoichi KAWAHARA, Yuki KAMADO, Masaaki OMOTANI, Shunsaku NAGATA, "Method of Implementing GFR Service in Large-Scale Networks Using ABR Control Mechanism and Its Performance Analysis" in IEICE TRANSACTIONS on Communications,
vol. E82-B, no. 12, pp. 2081-2094, December 1999, doi: .
Abstract: This paper proposes implementing guaranteed frame rate (GFR) service using the available bit rate (ABR) control mechanism in large-scale networks. GFR is being standardized as a new ATM service category to provide a minimum cell rate (MCR) guarantee to each virtual channel (VC) at the frame level. Although ABR also can support MCR, a source must adjust its cell emission rate according to the network congestion indication. In contrast, GFR service is intended for users who are not equipped to comply with the source behavior rules required by ABR. It is expected that many existing users will fall into this category. As one implementation of GFR, weighted round robin (WRR) with per-VC queueing at each switch is well known. However, WRR is hard to implement in a switch supporting a large number of VCs because it needs to determine in one cell time which VC queue should be served. In addition, it may result in ineffective bandwidth utilization at the network level because its control mechanism is closed at the node level. On the other hand, progress in ABR service standardization has led to the development of some ABR control algorithms that can handle a large number of connections. Thus, we propose implementing GFR using an already developed ABR control mechanism that can cope with many connections. It consists of an explicit rate (ER) control mechanism and a virtual source/virtual destination (VS/VD) mechanism. Allocating VSs/VDs to edge switches and ER control to backbone switches enables us to apply ABR control up to the entrance of a network, which results in effective bandwidth utilization at the network level. Our method also makes it possible to share resources between GFR and ABR connections, which decreases the link cost. Through simulation analysis, we show that our method can work better than WRR under various traffic conditions.
URL: https://global.ieice.org/en_transactions/communications/10.1587/e82-b_12_2081/_p
Salinan
@ARTICLE{e82-b_12_2081,
author={Ryoichi KAWAHARA, Yuki KAMADO, Masaaki OMOTANI, Shunsaku NAGATA, },
journal={IEICE TRANSACTIONS on Communications},
title={Method of Implementing GFR Service in Large-Scale Networks Using ABR Control Mechanism and Its Performance Analysis},
year={1999},
volume={E82-B},
number={12},
pages={2081-2094},
abstract={This paper proposes implementing guaranteed frame rate (GFR) service using the available bit rate (ABR) control mechanism in large-scale networks. GFR is being standardized as a new ATM service category to provide a minimum cell rate (MCR) guarantee to each virtual channel (VC) at the frame level. Although ABR also can support MCR, a source must adjust its cell emission rate according to the network congestion indication. In contrast, GFR service is intended for users who are not equipped to comply with the source behavior rules required by ABR. It is expected that many existing users will fall into this category. As one implementation of GFR, weighted round robin (WRR) with per-VC queueing at each switch is well known. However, WRR is hard to implement in a switch supporting a large number of VCs because it needs to determine in one cell time which VC queue should be served. In addition, it may result in ineffective bandwidth utilization at the network level because its control mechanism is closed at the node level. On the other hand, progress in ABR service standardization has led to the development of some ABR control algorithms that can handle a large number of connections. Thus, we propose implementing GFR using an already developed ABR control mechanism that can cope with many connections. It consists of an explicit rate (ER) control mechanism and a virtual source/virtual destination (VS/VD) mechanism. Allocating VSs/VDs to edge switches and ER control to backbone switches enables us to apply ABR control up to the entrance of a network, which results in effective bandwidth utilization at the network level. Our method also makes it possible to share resources between GFR and ABR connections, which decreases the link cost. Through simulation analysis, we show that our method can work better than WRR under various traffic conditions.},
keywords={},
doi={},
ISSN={},
month={December},}
Salinan
TY - JOUR
TI - Method of Implementing GFR Service in Large-Scale Networks Using ABR Control Mechanism and Its Performance Analysis
T2 - IEICE TRANSACTIONS on Communications
SP - 2081
EP - 2094
AU - Ryoichi KAWAHARA
AU - Yuki KAMADO
AU - Masaaki OMOTANI
AU - Shunsaku NAGATA
PY - 1999
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E82-B
IS - 12
JA - IEICE TRANSACTIONS on Communications
Y1 - December 1999
AB - This paper proposes implementing guaranteed frame rate (GFR) service using the available bit rate (ABR) control mechanism in large-scale networks. GFR is being standardized as a new ATM service category to provide a minimum cell rate (MCR) guarantee to each virtual channel (VC) at the frame level. Although ABR also can support MCR, a source must adjust its cell emission rate according to the network congestion indication. In contrast, GFR service is intended for users who are not equipped to comply with the source behavior rules required by ABR. It is expected that many existing users will fall into this category. As one implementation of GFR, weighted round robin (WRR) with per-VC queueing at each switch is well known. However, WRR is hard to implement in a switch supporting a large number of VCs because it needs to determine in one cell time which VC queue should be served. In addition, it may result in ineffective bandwidth utilization at the network level because its control mechanism is closed at the node level. On the other hand, progress in ABR service standardization has led to the development of some ABR control algorithms that can handle a large number of connections. Thus, we propose implementing GFR using an already developed ABR control mechanism that can cope with many connections. It consists of an explicit rate (ER) control mechanism and a virtual source/virtual destination (VS/VD) mechanism. Allocating VSs/VDs to edge switches and ER control to backbone switches enables us to apply ABR control up to the entrance of a network, which results in effective bandwidth utilization at the network level. Our method also makes it possible to share resources between GFR and ABR connections, which decreases the link cost. Through simulation analysis, we show that our method can work better than WRR under various traffic conditions.
ER -