Precise packet delay measurement in an Ethernet network

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F14%3A00219454" target="_blank" >RIV/68407700:21230/14:00219454 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.measurement.2014.03.020" target="_blank" >http://dx.doi.org/10.1016/j.measurement.2014.03.020</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.measurement.2014.03.020" target="_blank" >10.1016/j.measurement.2014.03.020</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Precise packet delay measurement in an Ethernet network

Popis výsledku v původním jazyce

Node synchronization can be implemented in an Ethernet network using time protocols; e.g. IEEE 1588 [1]. Active network components like switches and routers influence the accuracy of synchronization because they affect a packet delay variation in the network. Therefore, the delay is not constant and, as well, the delay in one direction is not equal to the delay in the opposite direction. This paper presents a low-cost device that can measure the packet delay with high accuracy in both communication directions and, at the same time, calculate network parameters including a packet delay variation, path asymmetry and dependency of the delay in opposite directions. The measurements can be used for the estimation of synchronization accuracy within the tested network. Some network elements have an unexpectedly large variability of path delays and large asymmetry. This behavior can be measured directly and therefore it is possible to eliminate these devices from the network. The results can b

Název v anglickém jazyce

Precise packet delay measurement in an Ethernet network

Popis výsledku anglicky

Node synchronization can be implemented in an Ethernet network using time protocols; e.g. IEEE 1588 [1]. Active network components like switches and routers influence the accuracy of synchronization because they affect a packet delay variation in the network. Therefore, the delay is not constant and, as well, the delay in one direction is not equal to the delay in the opposite direction. This paper presents a low-cost device that can measure the packet delay with high accuracy in both communication directions and, at the same time, calculate network parameters including a packet delay variation, path asymmetry and dependency of the delay in opposite directions. The measurements can be used for the estimation of synchronization accuracy within the tested network. Some network elements have an unexpectedly large variability of path delays and large asymmetry. This behavior can be measured directly and therefore it is possible to eliminate these devices from the network. The results can b

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JA - Elektronika a optoelektronika, elektrotechnika

OECD FORD obor

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Projekt

<a href="/cs/project/TA01010988" target="_blank" >TA01010988: Časově synchronní distribuované systémy pro sběr dat a řízení procesů</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2014

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Measurement

ISSN

0263-2241

e-ISSN

—

Svazek periodika

54

Číslo periodika v rámci svazku

54

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

7

Strana od-do

215-221

Kód UT WoS článku

000336613600024

EID výsledku v databázi Scopus

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