Presentation 2003/6/30
An Effective Remarking Scheme for Diffserv AF Service through Multiple Domains
Shoichi MOTOHISA, Hiroyuki FUKUOKA, Ken-ichi BABA, Shinji SHIMOJO,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Diffserv is a type of architecture that aims to provide QoS in the IP networks, and the AF service class in Diffserv realizes minimum bandwidth guarantee by the use of differentiated drop precedence property marked in the DSCP field on each packet. The packets comply with the guaranteed bandwidth are protected in the network by means of the differentiated forwarding behavior based on the DSCP value. In the context of multiple domains environment, however, QoS of individual flow is not always preserved due to the re-marking behavior forced at the domain boundaries. Focusing on this point, this paper proposes a new packet re-marking scheme that can improve per-flow QoS of AF service traversing multiple domains of Diffserv networks. The basic concept of the scheme is to distinguish packets re-marked to out-of-profile at the domain boundaries from those already marked as out-of-profile at the time of entering the network, and to give chances to the re-marked packet to recover back to in-of-profile that can enjoy its rightful QoS within the networks. Basic performance of the proposed scheme is evaluated through simulation study. Basic performance of the proposed scheme is evaluated through simulation study, and the rsults show its effectiveness in preserving QoS of the inter-domain flows.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) QoS / Diffserv / Assured Forwarding / DSCP Re-marking
Paper # IA2003-19
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Conference Information
Committee IA
Conference Date 2003/6/30(1days)
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Registration To Internet Architecture(IA)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) An Effective Remarking Scheme for Diffserv AF Service through Multiple Domains
Sub Title (in English)
Keyword(1) QoS
Keyword(2) Diffserv
Keyword(3) Assured Forwarding
Keyword(4) DSCP Re-marking
1st Author's Name Shoichi MOTOHISA
1st Author's Affiliation Graduate School of Information Science and Technology, Osaka University()
2nd Author's Name Hiroyuki FUKUOKA
2nd Author's Affiliation Telecommunications Advancement Organization of Japan
3rd Author's Name Ken-ichi BABA
3rd Author's Affiliation Cybermedia Center, Osaka University
4th Author's Name Shinji SHIMOJO
4th Author's Affiliation Cybermedia Center, Osaka University
Date 2003/6/30
Paper # IA2003-19
Volume (vol) vol.103
Number (no) 174
Page pp.pp.-
#Pages 6
Date of Issue