A hybrid procedure for efficient link dimensioning

R. de Oliveira Schmidt, R. Sadre, Anna Sperotto, Hans Leo van den Berg, Aiko Pras

Research output: Contribution to journalArticleAcademicpeer-review

3 Citations (Scopus)
56 Downloads (Pure)

Abstract

An important task for network operators is to properly dimension the capacity of their links. Often, this is done by simple rules of thumb based on coarse traffic measurements provided, e.g., by SNMP. More accurate estimations of the required link capacity typically require packet-level measurements, which are hard to implement in today’s high-speed networks. The challenge is, therefore, to accurately estimate the traffic statistics needed for estimating the required link capacity with minimal traffic measurement effort. This paper proposes a novel, hybrid procedure for link dimensioning that combines flow-level measurements, minimal efforts on packet captures, and an analytical traffic model. The result is an efficient and robust method to estimate required link capacities. Although the idea of estimating required capacities from flows is not new, the novelty of this paper is that it proposes a complete, efficient and deployable procedure. The proposed procedure has been extensively validated using real-world traffic captures dating from 2011 to 2012. Results show that, with minimal measurement effort, we are able to efficiently estimate the required bandwidth at timescales as low as 1 ms.
Original languageUndefined
Pages (from-to)252-269
Number of pages18
JournalComputer networks
Volume67
DOIs
Publication statusPublished - Jul 2014

Keywords

  • IR-91066
  • IPFIX
  • NetFlow
  • EWI-24688
  • Flows
  • METIS-304081
  • Link Dimensioning
  • Bandwidth Estimation

Cite this

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title = "A hybrid procedure for efficient link dimensioning",
abstract = "An important task for network operators is to properly dimension the capacity of their links. Often, this is done by simple rules of thumb based on coarse traffic measurements provided, e.g., by SNMP. More accurate estimations of the required link capacity typically require packet-level measurements, which are hard to implement in today’s high-speed networks. The challenge is, therefore, to accurately estimate the traffic statistics needed for estimating the required link capacity with minimal traffic measurement effort. This paper proposes a novel, hybrid procedure for link dimensioning that combines flow-level measurements, minimal efforts on packet captures, and an analytical traffic model. The result is an efficient and robust method to estimate required link capacities. Although the idea of estimating required capacities from flows is not new, the novelty of this paper is that it proposes a complete, efficient and deployable procedure. The proposed procedure has been extensively validated using real-world traffic captures dating from 2011 to 2012. Results show that, with minimal measurement effort, we are able to efficiently estimate the required bandwidth at timescales as low as 1 ms.",
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doi = "10.1016/j.comnet.2014.04.008",
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A hybrid procedure for efficient link dimensioning. / de Oliveira Schmidt, R.; Sadre, R.; Sperotto, Anna; van den Berg, Hans Leo; Pras, Aiko.

In: Computer networks, Vol. 67, 07.2014, p. 252-269.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - A hybrid procedure for efficient link dimensioning

AU - de Oliveira Schmidt, R.

AU - Sadre, R.

AU - Sperotto, Anna

AU - van den Berg, Hans Leo

AU - Pras, Aiko

N1 - eemcs-eprint-24688

PY - 2014/7

Y1 - 2014/7

N2 - An important task for network operators is to properly dimension the capacity of their links. Often, this is done by simple rules of thumb based on coarse traffic measurements provided, e.g., by SNMP. More accurate estimations of the required link capacity typically require packet-level measurements, which are hard to implement in today’s high-speed networks. The challenge is, therefore, to accurately estimate the traffic statistics needed for estimating the required link capacity with minimal traffic measurement effort. This paper proposes a novel, hybrid procedure for link dimensioning that combines flow-level measurements, minimal efforts on packet captures, and an analytical traffic model. The result is an efficient and robust method to estimate required link capacities. Although the idea of estimating required capacities from flows is not new, the novelty of this paper is that it proposes a complete, efficient and deployable procedure. The proposed procedure has been extensively validated using real-world traffic captures dating from 2011 to 2012. Results show that, with minimal measurement effort, we are able to efficiently estimate the required bandwidth at timescales as low as 1 ms.

AB - An important task for network operators is to properly dimension the capacity of their links. Often, this is done by simple rules of thumb based on coarse traffic measurements provided, e.g., by SNMP. More accurate estimations of the required link capacity typically require packet-level measurements, which are hard to implement in today’s high-speed networks. The challenge is, therefore, to accurately estimate the traffic statistics needed for estimating the required link capacity with minimal traffic measurement effort. This paper proposes a novel, hybrid procedure for link dimensioning that combines flow-level measurements, minimal efforts on packet captures, and an analytical traffic model. The result is an efficient and robust method to estimate required link capacities. Although the idea of estimating required capacities from flows is not new, the novelty of this paper is that it proposes a complete, efficient and deployable procedure. The proposed procedure has been extensively validated using real-world traffic captures dating from 2011 to 2012. Results show that, with minimal measurement effort, we are able to efficiently estimate the required bandwidth at timescales as low as 1 ms.

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KW - NetFlow

KW - EWI-24688

KW - Flows

KW - METIS-304081

KW - Link Dimensioning

KW - Bandwidth Estimation

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