Detail publikace

Rozšíření mechanizmu DiffServ o možnost definice QoS požadavků uživatelskou aplikací

HOŠEK, J. RŮČKA, L. MOLNÁR, K.

Originální název

DiffServ Extension Allowing User Applications to Effect QoS Control

Český název

Rozšíření mechanizmu DiffServ o možnost definice QoS požadavků uživatelskou aplikací

Anglický název

DiffServ Extension Allowing User Applications to Effect QoS Control

Typ

článek ve sborníku

Jazyk

en

Originální abstrakt

The technology of Differentiated Services (DiffServ) is currently one of the most used QoS technologies. The initial place where the QoS control mechanisms of this technology are applied is the edge router of the DiffServ domain. Right this property is one of the biggest disadvantages of DiffServ because it does not support the direct interaction with the user application that can define its QoS requirements most precisely. This paper deals with the proposal of a new QoS control system where the user application is able to cooperate with the edge node of the DiffServ domain and can affect the allocation of network resources. As a communication protocol between the user application and the edge node the well-known SNMP (Simple Network Management Protocol) has been chosen. On the basis of the theoretical proposal the basic simulation model was created in the Opnet Modeler simulating environment. This model is composed from a special SNMP manager and SNMP agent. The simulation model was focused on the evaluation of the SNMP-based communication process.

Český abstrakt

V současné době je jednou z nejpoužívanějších QoS technologií technologie diferencovaných služeb (DiffServ) založená na rozdělení síťového provozu do tříd a přídělení specifických priorit těmto třídám. U DiffServ technologie je počátečním místem, kde se aplikují QoS mechanizmy, hraniční směrovač dané sítě. Přes jisté výhody je právě tato vlastnost jedním z hlavních nedostatků technologie DiffServ, neboť zde chybí přímá interakce s uživatelskou aplikací, která dokáže nejlépe definovat svoje QoS požadavky. Tento článek pojednává o návrhu nového QoS systému, který má právě za úkol umožnit uživatelské aplikaci ve spolupráci s hraničním prvkem DiffServ domény ovlivnit proces přidělování síťových prostředků. Jako komunikační protokol je použit protokol SNMP, který se běžně používá pro dohled a správu síťových zařízení. Na základě teoretického návrhu byl v simulačním prostředí Opnet Modeler vytvořen základní model tvořený SNMP manažerem a SNMP agentem. Mezi těmito prvky byla simulována SNMP komunikace.

Anglický abstrakt

The technology of Differentiated Services (DiffServ) is currently one of the most used QoS technologies. The initial place where the QoS control mechanisms of this technology are applied is the edge router of the DiffServ domain. Right this property is one of the biggest disadvantages of DiffServ because it does not support the direct interaction with the user application that can define its QoS requirements most precisely. This paper deals with the proposal of a new QoS control system where the user application is able to cooperate with the edge node of the DiffServ domain and can affect the allocation of network resources. As a communication protocol between the user application and the edge node the well-known SNMP (Simple Network Management Protocol) has been chosen. On the basis of the theoretical proposal the basic simulation model was created in the Opnet Modeler simulating environment. This model is composed from a special SNMP manager and SNMP agent. The simulation model was focused on the evaluation of the SNMP-based communication process.

Klíčová slova

DiffServ, External System Domain, Management Information Base, Opnet Modeler, QoS, SNMP

Rok RIV

2009

Vydáno

22.07.2009

Nakladatel

WSEAS Press

Místo

Rodos, Řecko

ISBN

978-960-474-098-7

Kniha

Recent Advances in Communications - Proceedings of the 13th WSEAS International Conference on Communications

Edice

1

Číslo edice

1

Strany od

39

Strany do

43

Strany počet

5

BibTex


@inproceedings{BUT33411,
  author="Jiří {Hošek} and Lukáš {Růčka} and Karol {Molnár}",
  title="DiffServ Extension Allowing User Applications to Effect QoS Control",
  annote="The technology of Differentiated Services (DiffServ) is currently one of the most used QoS technologies. The initial place where the QoS control mechanisms of this technology are applied is the edge router of the DiffServ domain. Right this property is one of the biggest disadvantages of DiffServ because it does not support the direct interaction with the user application that can define its QoS requirements most precisely. This paper deals with the proposal of a new QoS control system where the user application is able to cooperate with the edge node of the DiffServ domain and can affect the allocation of network resources. As a communication protocol between the user application and the edge node the well-known SNMP (Simple Network Management Protocol) has been chosen. On the basis of the theoretical proposal the basic simulation model was created in the Opnet Modeler simulating environment. This model is composed from a special SNMP manager and SNMP agent. The simulation model was focused on the evaluation of the SNMP-based communication process.",
  address="WSEAS Press",
  booktitle="Recent Advances in Communications - Proceedings of the 13th WSEAS International Conference on Communications",
  chapter="33411",
  edition="1",
  howpublished="electronic, physical medium",
  institution="WSEAS Press",
  year="2009",
  month="july",
  pages="39--43",
  publisher="WSEAS Press",
  type="conference paper"
}