Self-management of hybrid networks – hidden costs due to TCP performance problems

Abstract

Self-management is one of the most popular research topics in network and systems management. Little is known, however, regarding the costs, in particular with respect to performance, of self-management solutions. The goal of this paper is therefore to analyze such hidden per- formance costs. Our analysis will be performed within the context of a specific example, namely automatically moving elephant flows from the routed IP layer to optical light-paths (lambdas) in hybrid networks. The advantage of moving elephant flows to light-paths is that such flows will experience lower delays, lower jitter and lower loss, thus better Quality of Service (QoS), while reducing the load at the IP-level, which means that the remaining flows will also experience better QoS. The lower delay at the optical level may cause temporary reordering of packets, however, since the first packet over the light-path may arrive at the receiver side before the last routed IP packet has arrived. Such reordering may lead to short but severe performance problems at the TCP level. We systemat- ically analyze under which conditions such TCP performance problems occur, and how severe these problems are. Although our conclusions are specific to self-management of hybrid networks, it demonstrates by means of an example that self-management solutions may also introduce new problems, which must further be investigated before conclusions can be drawn regarding the pros and cons of self-management.
Original languageUndefined
Title of host publicationProceedings of the 19th EUNICE/IFIP WG 6.6 International Workshop on Advances in Communication Networking
EditorsThomas Bauschert
Place of PublicationHeidelberg
PublisherSpringer
Pages54-65
Number of pages12
ISBN (Print)978-3-642-40551-8
DOIs
StatePublished - Aug 2013

Publication series

NameLecture Notes in Computer Science
PublisherSpringer Verlag
Volume8115
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Fingerprint

Quality of service
Jitter
Costs

Keywords

  • EWI-23601
  • METIS-297787
  • IR-87214

Cite this

Moreira Moura, G., Pras, A., Fioreze, T., & de Boer, P-T. (2013). Self-management of hybrid networks – hidden costs due to TCP performance problems. In T. Bauschert (Ed.), Proceedings of the 19th EUNICE/IFIP WG 6.6 International Workshop on Advances in Communication Networking (pp. 54-65). (Lecture Notes in Computer Science; Vol. 8115). Heidelberg: Springer. DOI: 10.1007/978-3-642-40552-5_6

Moreira Moura, Giovane; Pras, Aiko; Fioreze, Tiago; de Boer, Pieter-Tjerk / Self-management of hybrid networks – hidden costs due to TCP performance problems.

Proceedings of the 19th EUNICE/IFIP WG 6.6 International Workshop on Advances in Communication Networking. ed. / Thomas Bauschert. Heidelberg : Springer, 2013. p. 54-65 (Lecture Notes in Computer Science; Vol. 8115).

Research output: Scientific - peer-reviewConference contribution

@inbook{ea7fcfef629547baa07bbf8378b39d31,
title = "Self-management of hybrid networks – hidden costs due to TCP performance problems",
abstract = "Self-management is one of the most popular research topics in network and systems management. Little is known, however, regarding the costs, in particular with respect to performance, of self-management solutions. The goal of this paper is therefore to analyze such hidden per- formance costs. Our analysis will be performed within the context of a specific example, namely automatically moving elephant flows from the routed IP layer to optical light-paths (lambdas) in hybrid networks. The advantage of moving elephant flows to light-paths is that such flows will experience lower delays, lower jitter and lower loss, thus better Quality of Service (QoS), while reducing the load at the IP-level, which means that the remaining flows will also experience better QoS. The lower delay at the optical level may cause temporary reordering of packets, however, since the first packet over the light-path may arrive at the receiver side before the last routed IP packet has arrived. Such reordering may lead to short but severe performance problems at the TCP level. We systemat- ically analyze under which conditions such TCP performance problems occur, and how severe these problems are. Although our conclusions are specific to self-management of hybrid networks, it demonstrates by means of an example that self-management solutions may also introduce new problems, which must further be investigated before conclusions can be drawn regarding the pros and cons of self-management.",
keywords = "EWI-23601, METIS-297787, IR-87214",
author = "{Moreira Moura}, Giovane and Aiko Pras and Tiago Fioreze and {de Boer}, Pieter-Tjerk",
note = "10.1007/978-3-642-40552-5_6",
year = "2013",
month = "8",
doi = "10.1007/978-3-642-40552-5_6",
isbn = "978-3-642-40551-8",
series = "Lecture Notes in Computer Science",
publisher = "Springer",
pages = "54--65",
editor = "Thomas Bauschert",
booktitle = "Proceedings of the 19th EUNICE/IFIP WG 6.6 International Workshop on Advances in Communication Networking",

}

Moreira Moura, G, Pras, A, Fioreze, T & de Boer, P-T 2013, Self-management of hybrid networks – hidden costs due to TCP performance problems. in T Bauschert (ed.), Proceedings of the 19th EUNICE/IFIP WG 6.6 International Workshop on Advances in Communication Networking. Lecture Notes in Computer Science, vol. 8115, Springer, Heidelberg, pp. 54-65. DOI: 10.1007/978-3-642-40552-5_6

Self-management of hybrid networks – hidden costs due to TCP performance problems. / Moreira Moura, Giovane; Pras, Aiko; Fioreze, Tiago; de Boer, Pieter-Tjerk.

Proceedings of the 19th EUNICE/IFIP WG 6.6 International Workshop on Advances in Communication Networking. ed. / Thomas Bauschert. Heidelberg : Springer, 2013. p. 54-65 (Lecture Notes in Computer Science; Vol. 8115).

Research output: Scientific - peer-reviewConference contribution

TY - CHAP

T1 - Self-management of hybrid networks – hidden costs due to TCP performance problems

AU - Moreira Moura,Giovane

AU - Pras,Aiko

AU - Fioreze,Tiago

AU - de Boer,Pieter-Tjerk

N1 - 10.1007/978-3-642-40552-5_6

PY - 2013/8

Y1 - 2013/8

N2 - Self-management is one of the most popular research topics in network and systems management. Little is known, however, regarding the costs, in particular with respect to performance, of self-management solutions. The goal of this paper is therefore to analyze such hidden per- formance costs. Our analysis will be performed within the context of a specific example, namely automatically moving elephant flows from the routed IP layer to optical light-paths (lambdas) in hybrid networks. The advantage of moving elephant flows to light-paths is that such flows will experience lower delays, lower jitter and lower loss, thus better Quality of Service (QoS), while reducing the load at the IP-level, which means that the remaining flows will also experience better QoS. The lower delay at the optical level may cause temporary reordering of packets, however, since the first packet over the light-path may arrive at the receiver side before the last routed IP packet has arrived. Such reordering may lead to short but severe performance problems at the TCP level. We systemat- ically analyze under which conditions such TCP performance problems occur, and how severe these problems are. Although our conclusions are specific to self-management of hybrid networks, it demonstrates by means of an example that self-management solutions may also introduce new problems, which must further be investigated before conclusions can be drawn regarding the pros and cons of self-management.

AB - Self-management is one of the most popular research topics in network and systems management. Little is known, however, regarding the costs, in particular with respect to performance, of self-management solutions. The goal of this paper is therefore to analyze such hidden per- formance costs. Our analysis will be performed within the context of a specific example, namely automatically moving elephant flows from the routed IP layer to optical light-paths (lambdas) in hybrid networks. The advantage of moving elephant flows to light-paths is that such flows will experience lower delays, lower jitter and lower loss, thus better Quality of Service (QoS), while reducing the load at the IP-level, which means that the remaining flows will also experience better QoS. The lower delay at the optical level may cause temporary reordering of packets, however, since the first packet over the light-path may arrive at the receiver side before the last routed IP packet has arrived. Such reordering may lead to short but severe performance problems at the TCP level. We systemat- ically analyze under which conditions such TCP performance problems occur, and how severe these problems are. Although our conclusions are specific to self-management of hybrid networks, it demonstrates by means of an example that self-management solutions may also introduce new problems, which must further be investigated before conclusions can be drawn regarding the pros and cons of self-management.

KW - EWI-23601

KW - METIS-297787

KW - IR-87214

U2 - 10.1007/978-3-642-40552-5_6

DO - 10.1007/978-3-642-40552-5_6

M3 - Conference contribution

SN - 978-3-642-40551-8

T3 - Lecture Notes in Computer Science

SP - 54

EP - 65

BT - Proceedings of the 19th EUNICE/IFIP WG 6.6 International Workshop on Advances in Communication Networking

PB - Springer

ER -

Moreira Moura G, Pras A, Fioreze T, de Boer P-T. Self-management of hybrid networks – hidden costs due to TCP performance problems. In Bauschert T, editor, Proceedings of the 19th EUNICE/IFIP WG 6.6 International Workshop on Advances in Communication Networking. Heidelberg: Springer. 2013. p. 54-65. (Lecture Notes in Computer Science). Available from, DOI: 10.1007/978-3-642-40552-5_6