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".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Untuk mengurangkan kesan masalah pemecahan paket dan untuk mengelakkan kesesakan rangkaian dalam TCP melalui UBR, skim pembuangan paket dalam lapisan ATM (seperti PPD dan EPD) telah dicadangkan. Skim ini menggugurkan paket sebelum ia sampai ke destinasi yang dimaksudkan jika rangkaian sesak dan paket akan dibuang sebahagiannya. Sebaliknya, TCP juga mengawal aliran data dengan kaedah kawalan alirannya sendiri. Disebabkan oleh sekatan aliran data pada lapisan TCP, ruang penimbal tidak digunakan sepenuhnya dalam suis ATM. Untuk menggunakan lebih banyak sumber penimbal, kertas kerja ini menyamaratakan skim PPD dan EDP. Daripada generalisasi ini, skim pembuangan paket optimistik yang dinamakan skim "Buang Paket Tertunda Berasaskan Kebarangkalian" (PDPD) dicadangkan. Bergantung pada kebarangkalian tertentu, skema ini menetapkan bendera buang untuk menangguhkan operasi buang sebenar. Kertas kerja ini membentangkan hasil beberapa model simulasi untuk mengetahui potensi penambahbaikan goodput oleh PDPD. Keputusan simulasi ini menunjukkan bahawa PDPD memperoleh goodput yang lebih tinggi daripada skim biasa apabila saiz paket besar dan beban input tidak ringan. Penulis ini membuat kesimpulan bahawa skim PDPD harus mencapai penggunaan goodput dan pautan yang berkesan sambil menggunakan lebih banyak sumber penimbal dengan berkesan.
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Salinan
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
Salinan
@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},}
Salinan
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 -