Performance comparison between virtual MPLS IP network and real IP network without MPLS

In this paper an IP based network consisting of two separate IP networks - a virtual one, running MPLS and an experimental IP network, connected to the virtual one, have been studied. VoIP traffic is exchanged between the two networks. Both networks are connected to the Internet and exchange traffic with it. The virtual network is created by using GNS3. The purpose of this paper is to show a comparison in the performance between the two IP networks. In addition, mathematical distributions and approximations have been made to be used to further evaluate the performance of the two networks. The used methodology in the present work can be applied in the study of different IP networks through which different types of real-time traffic passes

QoS and MPLS design issues in NoCs

Nowadays real application traffic, and especially streaming applications running in multi core environments require more and more bandwidth. Networks on Chips (NoC) should be able not only to provide adequate bandwidth resources but also variable length traffic with multi rate packets, each representing a different class of service (FEC classes) and hence, it should provide QoS support. It is common knowledge that in original networks, QoS provision along with packet forwarding and routing at high rates is supported by the MPLS concept. This paper is a brief and compact survey, that gives a smart look on critical design issues of MPLS technology applied in NoCs, based on recent reference work. All types of MPLS based NoC architectures are presented and their pros and cons are discussed. Moreover, other important issues are pointed out, such as non interference, security and fault management, giving researchers motivation and directions for extended research. © 2018 Tei of Western Macedonia