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".
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The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
A tecnologia de caminho baseada em MPLS mostra-se promissora como meio de realizar redes IP confiáveis. Serviços em tempo real, como VoIP e videoconferência, fornecidos através de uma rede MPLS multidomínio, devem ser capazes de garantir QoS ponta a ponta dos caminhos interdomínios. Assim, é importante alocar uma classe de QoS apropriada para os caminhos interdomínios em cada domínio percorrido pelos caminhos interdomínios. Como cada domínio tem sua própria política para alocação de classes de QoS, é necessário alocar de forma adaptativa a classe de QoS ideal com base na estimativa das políticas de alocação de classes de QoS em outros domínios. Este artigo propõe dois tipos de esquemas adaptativos de alocação de classes de QoS, assumindo que as solicitações de caminhos interdomínios que chegam incluem o número de domínios downstream percorridos pelos caminhos interdomínios e o valor de QoS restante em direção aos nós de destino. Primeiro, é proposto um esquema baseado em medição, baseado na medição das taxas de perda de caminhos interdomínios nos domínios downstream. Este esquema estima as políticas de alocação de classes de QoS nos domínios downstream, usando as taxas de perda medidas das solicitações de caminho. Em segundo lugar, também é proposto um esquema do tipo dependente do estado, baseado na medição das taxas de chegada de solicitações de caminho, além das taxas de perda de caminhos nos domínios downstream. Este esquema permite que uma classe de QoS apropriada seja alocada de acordo com o estado do domínio. Este artigo propõe uma aplicação da teoria da decisão de Markov à modelagem de esquemas do tipo dependente de estado. Os desempenhos dos esquemas propostos são avaliados e comparados com os de outros esquemas não adaptativos menos complicados, utilizando uma simulação computacional. Os resultados da comparação revelam que os esquemas propostos podem aumentar adaptativamente o número de caminhos interdomínios acomodados no domínio considerado, mesmo quando as políticas de alocação de classes de QoS mudam nos outros domínios e o padrão de chegada das solicitações de caminho varia no domínio considerado. .
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Nagao OGINO, Hajime NAKAMURA, "Adaptive QoS Class Allocation Schemes in Multi-Domain Path-Based Networks" in IEICE TRANSACTIONS on Communications,
vol. E92-B, no. 3, pp. 898-908, March 2009, doi: 10.1587/transcom.E92.B.898.
Abstract: MPLS-based path technology shows promise as a means of realizing reliable IP networks. Real-time services such as VoIP and video-conference supplied through a multi-domain MPLS network must be able to guarantee end-to-end QoS of the inter-domain paths. Thus, it is important to allocate an appropriate QoS class to the inter-domain paths in each domain traversed by the inter-domain paths. Because each domain has its own policy for QoS class allocation, it is necessary to adaptively allocate the optimum QoS class based on estimation of the QoS class allocation policies in other domains. This paper proposes two kinds of adaptive QoS class allocation schemes, assuming that the arriving inter-domain path requests include the number of downstream domains traversed by the inter-domain paths and the remaining QoS value toward the destination nodes. First, a measurement-based scheme, based on measurement of the loss rates of inter-domain paths in the downstream domains, is proposed. This scheme estimates the QoS class allocation policies in the downstream domains, using the measured loss rates of path requests. Second, a state-dependent type scheme, based on measurement of the arrival rates of path requests in addition to the loss rates of paths in the downstream domains, is also proposed. This scheme allows an appropriate QoS class to be allocated according to the domain state. This paper proposes an application of the Markov decision theory to the modeling of state-dependent type scheme. The performances of the proposed schemes are evaluated and compared with those of the other less complicated non-adaptive schemes using a computer simulation. The results of the comparison reveal that the proposed schemes can adaptively increase the number of inter-domain paths accommodated in the considered domain, even when the QoS class allocation policies change in the other domains and the arrival pattern of path requests varies in the considered domain.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.E92.B.898/_p
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@ARTICLE{e92-b_3_898,
author={Nagao OGINO, Hajime NAKAMURA, },
journal={IEICE TRANSACTIONS on Communications},
title={Adaptive QoS Class Allocation Schemes in Multi-Domain Path-Based Networks},
year={2009},
volume={E92-B},
number={3},
pages={898-908},
abstract={MPLS-based path technology shows promise as a means of realizing reliable IP networks. Real-time services such as VoIP and video-conference supplied through a multi-domain MPLS network must be able to guarantee end-to-end QoS of the inter-domain paths. Thus, it is important to allocate an appropriate QoS class to the inter-domain paths in each domain traversed by the inter-domain paths. Because each domain has its own policy for QoS class allocation, it is necessary to adaptively allocate the optimum QoS class based on estimation of the QoS class allocation policies in other domains. This paper proposes two kinds of adaptive QoS class allocation schemes, assuming that the arriving inter-domain path requests include the number of downstream domains traversed by the inter-domain paths and the remaining QoS value toward the destination nodes. First, a measurement-based scheme, based on measurement of the loss rates of inter-domain paths in the downstream domains, is proposed. This scheme estimates the QoS class allocation policies in the downstream domains, using the measured loss rates of path requests. Second, a state-dependent type scheme, based on measurement of the arrival rates of path requests in addition to the loss rates of paths in the downstream domains, is also proposed. This scheme allows an appropriate QoS class to be allocated according to the domain state. This paper proposes an application of the Markov decision theory to the modeling of state-dependent type scheme. The performances of the proposed schemes are evaluated and compared with those of the other less complicated non-adaptive schemes using a computer simulation. The results of the comparison reveal that the proposed schemes can adaptively increase the number of inter-domain paths accommodated in the considered domain, even when the QoS class allocation policies change in the other domains and the arrival pattern of path requests varies in the considered domain.},
keywords={},
doi={10.1587/transcom.E92.B.898},
ISSN={1745-1345},
month={March},}
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TY - JOUR
TI - Adaptive QoS Class Allocation Schemes in Multi-Domain Path-Based Networks
T2 - IEICE TRANSACTIONS on Communications
SP - 898
EP - 908
AU - Nagao OGINO
AU - Hajime NAKAMURA
PY - 2009
DO - 10.1587/transcom.E92.B.898
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E92-B
IS - 3
JA - IEICE TRANSACTIONS on Communications
Y1 - March 2009
AB - MPLS-based path technology shows promise as a means of realizing reliable IP networks. Real-time services such as VoIP and video-conference supplied through a multi-domain MPLS network must be able to guarantee end-to-end QoS of the inter-domain paths. Thus, it is important to allocate an appropriate QoS class to the inter-domain paths in each domain traversed by the inter-domain paths. Because each domain has its own policy for QoS class allocation, it is necessary to adaptively allocate the optimum QoS class based on estimation of the QoS class allocation policies in other domains. This paper proposes two kinds of adaptive QoS class allocation schemes, assuming that the arriving inter-domain path requests include the number of downstream domains traversed by the inter-domain paths and the remaining QoS value toward the destination nodes. First, a measurement-based scheme, based on measurement of the loss rates of inter-domain paths in the downstream domains, is proposed. This scheme estimates the QoS class allocation policies in the downstream domains, using the measured loss rates of path requests. Second, a state-dependent type scheme, based on measurement of the arrival rates of path requests in addition to the loss rates of paths in the downstream domains, is also proposed. This scheme allows an appropriate QoS class to be allocated according to the domain state. This paper proposes an application of the Markov decision theory to the modeling of state-dependent type scheme. The performances of the proposed schemes are evaluated and compared with those of the other less complicated non-adaptive schemes using a computer simulation. The results of the comparison reveal that the proposed schemes can adaptively increase the number of inter-domain paths accommodated in the considered domain, even when the QoS class allocation policies change in the other domains and the arrival pattern of path requests varies in the considered domain.
ER -