Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/2932
Título: | Measuring QoS in class-based IP networks using multipurpose colored probing patterns |
Autor(es): | Lima, Solange Carvalho, Paulo Freitas, Vasco |
Palavras-chave: | Active monitoring Traffic measurements Quality-of-service Traffic control Multiclass networks Traffic differentiation Edge-to-edge service performance service differentiation |
Data: | Out-2004 |
Editora: | SPIE - The Society of Photo-optical Instrumentation Engineers |
Revista: | Proceedings of the Society of Photo-optical Instrumentation Engineers (SPIE) |
Citação: | SPIE ITCom, Philaphelfia, 2004 – “Performance, quality of service, and control of next-generation communication network : proceedings”. [Boston] : SPIE Press [200?]. ISBN 0-8194-5551-2. p. 171-182. |
Resumo(s): | Multiclass IP networks open new dimensions and challenges on active monitoring as efficient strategies of in-band probing are required to sense each class performance without causing noticeable side-effects on real traffic. In our study, we provide new insights on how to perform efficiently active monitoring in these networks, suggesting the use of light and multipurpose probing streams able to capture simultaneously the behavior of multiple QoS metrics of each class. Considering oneway- delay, jitter and loss metrics, we explore different spatial-temporal characteristics of probing, focusing on finding patterns adjusted to each class measurement requirements. We demonstrate that commonly used probing streams fail to capture these metrics simultaneously and we propose novel colored probing patterns able to increase multipurpose active monitoring efficiency. As test environment, we consider a diffserv domain where admission control resorts to feedback from edge-to-edge active monitoring to dynamically control hard real-time, soft real-time and elastic traffic classes. Comparing graphically and statistically the probing and passive measurement outcome of each class, the obtained results show that despite being difficult to match the scale and shape of multiple metrics, a single and properly colored probing stream can capture close and simultaneously the behavior of one-way-delay, jitter and loss, for low in-band probing rates. |
Tipo: | Artigo em ata de conferência |
URI: | https://hdl.handle.net/1822/2932 |
ISBN: | 0819455512 |
DOI: | 10.1117/12.571499 |
ISSN: | 0277-786X |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | DI/CCTC - Artigos (papers) |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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itcom-2004-cr.bib | Latex bibitem | 468 B | Text | Ver/Abrir |
itcom-2004-cr.pdf | artigo | 212,36 kB | Adobe PDF | Ver/Abrir |