The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
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The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Afin d'atténuer l'impact du problème de fragmentation des paquets et d'éviter la congestion du réseau dans TCP sur UBR, des schémas d'élimination des paquets dans la couche ATM (tels que PPD et EPD) ont été proposés. Ces systèmes abandonnent les paquets avant qu'ils n'atteignent leur destination prévue si le réseau est encombré et que les paquets doivent être partiellement rejetés. D'un autre côté, TCP régule également le flux de données avec sa propre méthode de contrôle de flux. En raison de la restriction du flux de données au niveau de la couche TCP, l'espace tampon n'est pas entièrement utilisé dans un commutateur ATM. Afin d'utiliser davantage de ressources tampon, cet article généralise les schémas PPD et EDP. À partir de cette généralisation, un schéma optimiste d’élimination des paquets appelé schéma « Probability-Based Delayed Packet Discard » (PDPD) est proposé. En fonction d'une probabilité particulière, ce schéma définit un indicateur de suppression pour retarder l'opération de suppression réelle. Cet article présente les résultats de plusieurs modèles simulés pour découvrir le potentiel d'amélioration du goodput par PDPD. Les résultats de ces simulations indiquent que PDPD obtient un rendement supérieur à celui des schémas ordinaires lorsque la taille du paquet est grande et que la charge d'entrée n'est pas légère. Cet auteur conclut qu'un schéma PDPD devrait permettre une utilisation efficace des bons de sortie et des liens tout en utilisant efficacement davantage de ressources tampon.
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Manhee JO, Yoshihiko EBIHARA, "A Study on Generalization of Packet Discard Schemes for TCP over ATM" in IEICE TRANSACTIONS on Communications,
vol. E84-B, no. 2, pp. 275-283, February 2001, doi: .
Abstract: In order to ease the impact of the packet fragmentation problem and to avoid network congestion in TCP over UBR, packet discard schemes in ATM layer (such as PPD and EPD) have been proposed. These schemes drop packets before they reach their intended destinations if the network is congested and the packets are to be partially discarded. On the other hand, TCP also regulates data flow with its own flow control method. Due to restriction of data flow at the TCP layer, buffer space is not fully used in an ATM switch. In order to make use of more buffer resources, this paper generalizes the PPD and EDP schemes. From this generalization, an optimistic packet discard scheme named the "Probability-Based Delayed Packet Discard" (PDPD) scheme is proposed. Depending on a particular probability, this scheme sets a discard flag to delay actual discard operation. This paper presents the results of several simulated models to find out the potential of improvement of goodput by PDPD. The results of these simulations indicate that PDPD obtains higher goodput than ordinary schemes when the packet size is large and the input load is not light. This author concludes that a PDPD scheme should achieve effective goodput and link utilization while using more buffer resources effectively.
URL: https://global.ieice.org/en_transactions/communications/10.1587/e84-b_2_275/_p
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@ARTICLE{e84-b_2_275,
author={Manhee JO, Yoshihiko EBIHARA, },
journal={IEICE TRANSACTIONS on Communications},
title={A Study on Generalization of Packet Discard Schemes for TCP over ATM},
year={2001},
volume={E84-B},
number={2},
pages={275-283},
abstract={In order to ease the impact of the packet fragmentation problem and to avoid network congestion in TCP over UBR, packet discard schemes in ATM layer (such as PPD and EPD) have been proposed. These schemes drop packets before they reach their intended destinations if the network is congested and the packets are to be partially discarded. On the other hand, TCP also regulates data flow with its own flow control method. Due to restriction of data flow at the TCP layer, buffer space is not fully used in an ATM switch. In order to make use of more buffer resources, this paper generalizes the PPD and EDP schemes. From this generalization, an optimistic packet discard scheme named the "Probability-Based Delayed Packet Discard" (PDPD) scheme is proposed. Depending on a particular probability, this scheme sets a discard flag to delay actual discard operation. This paper presents the results of several simulated models to find out the potential of improvement of goodput by PDPD. The results of these simulations indicate that PDPD obtains higher goodput than ordinary schemes when the packet size is large and the input load is not light. This author concludes that a PDPD scheme should achieve effective goodput and link utilization while using more buffer resources effectively.},
keywords={},
doi={},
ISSN={},
month={February},}
Copier
TY - JOUR
TI - A Study on Generalization of Packet Discard Schemes for TCP over ATM
T2 - IEICE TRANSACTIONS on Communications
SP - 275
EP - 283
AU - Manhee JO
AU - Yoshihiko EBIHARA
PY - 2001
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E84-B
IS - 2
JA - IEICE TRANSACTIONS on Communications
Y1 - February 2001
AB - In order to ease the impact of the packet fragmentation problem and to avoid network congestion in TCP over UBR, packet discard schemes in ATM layer (such as PPD and EPD) have been proposed. These schemes drop packets before they reach their intended destinations if the network is congested and the packets are to be partially discarded. On the other hand, TCP also regulates data flow with its own flow control method. Due to restriction of data flow at the TCP layer, buffer space is not fully used in an ATM switch. In order to make use of more buffer resources, this paper generalizes the PPD and EDP schemes. From this generalization, an optimistic packet discard scheme named the "Probability-Based Delayed Packet Discard" (PDPD) scheme is proposed. Depending on a particular probability, this scheme sets a discard flag to delay actual discard operation. This paper presents the results of several simulated models to find out the potential of improvement of goodput by PDPD. The results of these simulations indicate that PDPD obtains higher goodput than ordinary schemes when the packet size is large and the input load is not light. This author concludes that a PDPD scheme should achieve effective goodput and link utilization while using more buffer resources effectively.
ER -