As the Internet grows, various types of traffic, such as voice, video and data, have been transmitted. Therefore, the Internet
should provide Quality of Service(QoS) required by each traffic as well as end-to-end connectivity, and routing decision should
be based on the utilization of links/routers and/or application types of each traffic. This kind of routing is called Traffic
Engineering (TE) and its objective is to improve performance for users, such as the flow loss probability, and for networks,
such as the utilization of links, simultaneously, and some studies claim that MPLS(Multi-protocol Label Switching) technique
can easily implement TE.
So far, there are some experimental results that showed how effective TE on MPLS network is, however, its performance would
not be theoretically and quantitatively analyzed. Thus, in this paper, we will investigate basic and preliminary performance
of MPLS networks for TE by analyzing flow loss probability and Smoothness index of link utilization in the queueing system.
Keywords Traffic Engineering - MPLS - M/M/c/c queueing system - flow loss probability - link utilization - performance analysis