PERFORMANCE ANALYSIS OF DATA TRANSMISSIONS IN MPLS AND NON-MPLS NETWORKS

Abstract

Basic Network transactions specifies that  datagram from  source to  destination   is routed through  numerous routers  and paths depending on the available free and uncongested paths  which results in the transmission  route being too long, thus incurring  greater delay, jitter, con- gestion and  reduced throughput.  One of the major problems of packet switched networks is the cell delay variation or jitter. This cell delay variation is due to the queuing delay depending on the applied loading conditions. The effect of delay, jitter accumulation due to the number of nodes along  transmission routes and dropped packets adds further complexity to  multimedia traffic because there is no guarantee that each traffic stream will be delivered according to its own jitter constraints therefore there is the need to analyze the effects of jitter. IP routers enable a single path for the transmission of all packets. On the other hand, Multi-Protocol Label Switching (MPLS) allows separation of packet forwarding and routing characteristics to enable packets to use the appropriate routes and also optimize and control the behavior of transmission paths. Thus correcting some of the shortfalls associated with IP routing. Therefore MPLS has been utilized in the analysis for effective transmission through the various networks. This paper analyzes the effect of delay, congestion, interference, jitter and packet loss in the transmission of signals from source to destination. In effect the impact of link failures, repair paths in the vari- ous physical topologies namely bus, star, mesh and hybrid topologies are all analyzed based on standard network conditions.