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Titolo:
IPv6 traffic with multi-class QoS in VPN
Autore:
Zhang, LR; Zheng, L;
Indirizzi:
Nanyang Technol Univ, Network Technol Res Ctr, Sch EEE, Singapore 639798, Singapore Nanyang Technol Univ Singapore Singapore 639798 gapore 639798, Singapore
Titolo Testata:
COMPUTER NETWORKS-THE INTERNATIONAL JOURNAL OF COMPUTER AND TELECOMMUNICATIONS NETWORKING
fascicolo: 3-4, volume: 37, anno: 2001,
pagine: 263 - 275
SICI:
1389-1286(20011105)37:3-4<263:ITWMQI>2.0.ZU;2-5
Fonte:
ISI
Lingua:
ENG
Soggetto:
PERFORMANCE; VOICE;
Keywords:
virtual private network; quality of service; IPv6; multimedia networking;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
21
Recensione:
Indirizzi per estratti:
Indirizzo: Zhang, LR Nanyang Technol Univ, Network Technol Res Ctr, Sch EEE, S2, Singapore 639798, Singapore Nanyang Technol Univ S2 Singapore Singapore 6397988, Singapore
Citazione:
L.R. Zhang e L. Zheng, "IPv6 traffic with multi-class QoS in VPN", COMPUT NET, 37(3-4), 2001, pp. 263-275

Abstract

This paper focuses on the modeling and performance analysis for IPv6 traffic with multi-class QoS in virtual private networks (VPNs). The multi-classQoS is implemented on differentiated service basis using priority scheme of 4 bits defined in the packet header of IPv6. A VPN-enabled IP router is modeled as a tandem queuing system in which each output link consists of twoparallel priority output queues. The high-priority queue is used to carry the delay sensitive traffic while the low-priority queue is used to carry the delay insensitive traffic. On the other hand, multiple thresholds are implemented in each queue, respectively, for packet loss priority control. The performance analysis is done using fluid flow techniques. The numerical results obtained from the analysis show that the differentiated service based on the priority schemes defined in IPv6 is able to effectively satisfy the multi-class QoS requirement for supporting multimedia services in VPN. The performance trade-off between the delay sensitive traffic and delay insensitive traffic in terms of traffic throughput, packet loss probability and end-to-end delay in VPN networks is presented. (C) 2001 Published by Elsevier Science B.V.

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Documento generato il 11/07/20 alle ore 04:45:38