Traffic Analysis of MPLS and Non MPLS Network including MPLS Signaling Protocols and Traffic Distribution in OSPF and MPLS

Abstract

Multi-protocol label switching (MPLS) is rapidly emerging technology, which plays a key role in next generation networks by delivering QoS and traffic engineering features. MPLS is helpful in managing traffic when some links or paths are under and/or over utilized. In MPLS a look - up in switching table is certainly less complex and time consuming than a corresponding routing table look - up in an IP router. This paper present a analysis of MPLS signaling protocols for traffic engineering, shows the capability of providing traffic engineering in MPLS compared to the conventional routing protocol, and explains the MPLS LSR operations based on the basic LSR functionality of classification, queue, and scheduling. The comparisons of CR-LDP, RSVP, and RSVP-TE are conducted based on the aspects of LSP reliability and LSP adaptability. In addition, this paper also presents a comparative analysis of MPLS and non-MPLS network and shows that MPLS provides improved network performance for heavy traffic environments.