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This study aims to evaluate the performance of multimedia services in an MPLS network model using a simulation approach. It investigates label distribution protocol signaling with dynamic label switch paths and bandwidth allocation. The study also analyzes the impact of control and fast forwarding techniques on packet loss and delay.
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Approach to Label Distribution Protocol Signaling using Multimedia Services for Bandwidth Allocation Oba Zubair Mustapha School of Electrical Engineering and Computer Science Supervisors: Prof Yim Fun Hu Prof Raed A. Abd-Alhameed
Outlines • INTRODUCTION. • AIM AND OBJECTIVES • MOTIVATION. • MPLS NETWORK SCENARIOS. • SIMULATION RESULTS. • CONCLUSION.
Introduction • MPLS (Multi-Protocol Label Switching) is a fast packet based - forwarding and scalable technology, which is widely used in the core network. • It comprises of three stages of operation: IP – MPLS (LER ingress), MPLS – MPLS (LSRs), and MPLS – IP (LER egress)
Mobile and Wireless application services form the basis for the success of the technology in the next generation of networks. • Management of the bandwidth has emerged as a powerful platform for controlling the traffic volume of future mobile and wireless networks.
Aim and Objectives • Aim to study the performance of multimedia services in MPLS Network model using a simulation approach. This will eventually proffer a solution to the bandwidth issues of the next generation of Mobile Wireless networks. • To perform the evaluation of Label Distribution Protocol signaling with dynamic Label Switch Paths and Bandwidth Allocation in MPLS Network model. • Performance analysis of the MPLS model with control and fast forwarding technique will be required to minimize packet loss and packet delay along switching process.
Motivation • Multiprotocol Label Switching (MPLS) has made remarkable progress over last few years. It encompasses a wide range of functionalities and applications in its implementation.
Two Signaling Protocols • LDP can signal three types of transport Label Switched Paths (LSPs): • MP2P • P2MP • MP2MP • RSVP-TE builds two types of LSPs: • P2P • P2MP
Label Distribution Protocol (LDP) • In order for MPLS to operate correctly, label distribution information needs to be: • Transmitted reliably • Transmitted in sequence
MPLS Network Baseline MPLS Model Scenarios
Configurations of LDP • LDP is enabled on selected on routers • Traffic flows are created on LSPs to allocate bandwidth
Bandwidth Estimation & Allocation Analysis Mj (s) is the properties of the log-moment generating function. is the bandwidth requirement of the i connection of type j . Also, it represents an independent random variable. is the estimated bandwidth of a source of class type.
(a) Circle view of bandwidth distribution and Percentage of bandwidth utilisation (16.6%)
(b)Circle view of bandwidth distribution and Percentage of bandwidth utilisation (28.57%)
Average Video Conferencing sent and received Simulation Results
Packet delay variation and End-to-End delay (Video and Voice)
Queue delay of Point-to-Point connection
Conclusion In summary, • Configuration of LDP signaling has been performed and compared with baseline using iteration • Analysis of bandwidth estimation and bandwidth allocation have been provided • Illustration of the effect of bandwidth allocation on resource utilisation
References Optimisation Network Tools (OPNET). Available from: http://www.opnet.com, [Accessed on 1st of March, 2016]. M. Khan, "MPLS Traffic Engineering in ISP Network," International Journal of Computer Applications, vol. 59, 2012. [23] LDP Specification IETF Draft; Applicability of LDP [RFC 3036] and [RFC 3037].
