Browsing by Author "Erena, Keno"

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    Comparative Analysis of QoS in MPLS and IP Network for Broadband Intelsat Internet Using Riverbed Modeler Academic Edition
    (Addis Ababa University, 2018-08-22) Erena, Keno; Mohammed, Abdo (Prof.)
    Nowadays Multiprotocol Label Switching (MPLS) and Internet Protocol (IP) are widely used technologies in service providers and enterprise networks across the globe. In this thesis, the behavior of traffic in both IP and MPLS are studied since they have more advantageous through all network models. MPLS -enabled infrastructure has the ability to transport any type of payload (Asynchronous Transfer Mode, frame relay, and Ethernet) over it, within the same time providing a multipurpose architecture. An incoming packet is arranged only once as it enters into the MPLS domain and gets assigned label information. Then after all decision processes along a specified path is based upon the attached label rather than assigning destination IP addresses. This work also presents the design and simulation of MPLS and IP network for different applications. These applications used for the performance evaluation including voice, File Transfer Protocol (FTP) and Hyperlink Text Transfer Protocol (HTTP). The parameters used for the analysis are throughput, link utilization, packet delay, jitter, page response time and FTP response time. Comparative analysis of the quality of services is a set of performance models to evaluate the different combination of IP and MPLS network routing topologies have been explained for the proposed network model. The results obtained from this study shows how a service provider can benefit from MPLS services with increasing network performance like throughput, mean opinion score, a packet sent and received. Comparing MPLS queuing delay results with the IP result from the shortest path routing scenario network, the queuing delay keep a much less queuing delay in MPLS configuration with value (Maximum 0.00002 seconds and Minimum 0.00001 seconds) between Http Client and ISP Branch 1. It can be observed that the queuing delay MPLS scenario is more balanced between both paths comparing it with IP scenario.