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OPNET Technologies OPNET is a registered |
MPLS
Performance Modeling Using Traffic Engineering To Improve QoS Routing on
IP Networks
The Internet architecture has evolved over time, incorporating new technologies and adapting to the changing needs of its users. The introduction of Multi-Protocol Label Switching (MPLS) as a part of the Internet forwarding architecture has immediate applications in traffic engineering (TE) and Quality of Service Routing (QoSR). MPLS supports throughput and delay sensitive real-time media services such as Internet-Based Distance Learning or i-DL.
This research presents a performance service model, which incorporates TE and QoSR of the MPLS to support i-DL while retaining the efficiencies of the backbone structure of the Internet. This new service model is simulated using OPNET Modeler and its performance is compared to existing IP routing algorithms.
OPNET simulator is used to investigate the performance issues related to Multi-Protocol Label Switching as a technology standpoint, based on application requirements. The essential parts of the simulation are to set measures of QoS provisioning and guarantees and to demonstrate how they might be achieved through weight assignment of LSPs.
Conventional IP Routing vs. MPLS Forwarding
The 3-
experimental bits can be used to identify Type of Service (ToS) that a
specific application needs. QoS requirements of each application type may be
specified in terms of delay, delay variation, and packet loss. The main
concern of this simulation is delay characteristics, due to their critical
role in providing satisfactory performance levels in real-time applications.
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