Presentation 2002/9/23
Capacity Dimensioning of VPN Access Links for Elastic Traffic
Keisuke ISHIBASHI, Mika ISHIZUKA, Masaki AIDA,
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Abstract(in English) In this paper we are studying the capacity dimensioning of Virtual Private Network (VPN) access-links for elastic traffic, such as the Web or ftp. Under the assumption that the core-VPN network is provisioned with sufficiently large capacity, the capacity management of the VPN access link is a matter of bandwidth-sharing for elastic traffic of the two bottleneck links, the ingress and egress access links. In the case of a single bottleneck with a limited capacity of access links, the processor-sharing model gives a simple formulae of mean transfer time, but in our case, the value may be less than the actual transfer time. In contrast, max-min fair sharing provides an accurate sharing model which is similar to the TCP, but it is difficult to obtain a closed form of performance statistics. We propose a closed form approximation for a max-min fair sharing model, in a specific but realistic topology, by investigating the difference between the max-mm and the processor sharing model. Using the approximation, we are performing the capacity dimensioning of VPN access links.
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Keyword(in English) VPN / statistical multiplexing gain / max-min fairness
Paper # NS2002-120
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Conference Information
Committee NS
Conference Date 2002/9/23(1days)
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Paper Information
Registration To Network Systems(NS)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Capacity Dimensioning of VPN Access Links for Elastic Traffic
Sub Title (in English)
Keyword(1) VPN
Keyword(2) statistical multiplexing gain
Keyword(3) max-min fairness
1st Author's Name Keisuke ISHIBASHI
1st Author's Affiliation NTT Information Sharing Platform Labs, NTT Corporation()
2nd Author's Name Mika ISHIZUKA
2nd Author's Affiliation NTT Information Sharing Platform Labs, NTT Corporation
3rd Author's Name Masaki AIDA
3rd Author's Affiliation NTT Information Sharing Platform Labs, NTT Corporation
Date 2002/9/23
Paper # NS2002-120
Volume (vol) vol.102
Number (no) 348
Page pp.pp.-
#Pages 6
Date of Issue