Buffer management and scheduling schemes for TCP/IP over ATM-GFR

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)345-359
Journal / PublicationInternational Journal of Communication Systems
Volume14
Issue number4
Publication statusPublished - May 2001
Externally publishedYes

Abstract

Today ATM technology is facing challenges from integrated service IP, IP switching, gigabit IP router and gigabit ethernet. Although ATM is approved by ITU-T as the standard technology in B-ISDN, its survivability is still in question. Since ATM-UBR (unspecified bit rate) provides no service guarantee and ATM-ABR (available bit rate) is still unattainable for most users, many existing users have little or no incentives to migrate to ATM technology. The guaranteed frame rate (GFR) service is introduced to deal with this dilemma. The GFR can guarantee the minimum cell rate (MCR) with fair access to excess bandwidth. This paper studies various schemes to support the GFR. We have studied different discarding and scheduling schemes, and compared their throughput and fairness when TCP/IP traffic is carried. Through simulations, it is shown that only per-VC queueing with weighted round robin (WRR) can guarantee minimum cell rate. Among all the schemes that have been explored, we recommend dynamic threshold-early packet discard (DT-EPD) integrated with MCR + (a WRR variant) to support the GFR service. Copyright © 2001 John Wiley & Sons, Ltd.

Research Area(s)

  • ATM-GFR, MCR, EPD, Pushout, TCP/IP, Virtual queueing, WRR

Bibliographic Note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to lbscholars@cityu.edu.hk.

Citation Format(s)

Buffer management and scheduling schemes for TCP/IP over ATM-GFR. / Wu, Dapeng; Jonathan Chao, H.
In: International Journal of Communication Systems, Vol. 14, No. 4, 05.2001, p. 345-359.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review