The tremendous growth and requirements for Service quality, tenability, and efficiency have made traffic engineering an essential consideration in the design and operation of large public Internet backbone networks. Traffic engineering is the aspect of Internet network engineering that deals with the issue of performance evaluation and performance optimization of operational IP networks. The paramount objective of internet traffic engineering is to steer the transport of IP traffic through a given network in expeditious manner possible. This paper discusses a comparative analysis of MPLS and non-MPLS network and shows that MPLS provides improved network performance for heavy traffic environments. This paper also presents an analysis of MPLS signaling protocols for traffic engineering, shows the capability of providing traffic engineering in MPLS compared to the conventional routing protocol.
Keywords – IP, MPLS, TE, RSVP
The Internet has grown tremendously over the last few years. What started as an experiment has grown to the worldwide network that we know today. Large numbers of users subscribe to online multimedia services such as video streaming. Messenger services such as Skype, Google Hangouts and Facebook are replacing traditional phones for long distance calls across urban areas in many countries. Multi Protocol Label Switching (MPLS) was devised to convert the Internet and IP backbones from best effort data networks to business-class transport mediums capable of handling traditional real-time services. Internet service providers (ISPs) have responded to the challenge of internet growth by employing three complementary technical instruments:
The initial thrust was to deliver much needed traffic engineering capabilities and QoS enhancements to the generic IP cloud[masa]. The availability of traffic engineering has helped MPLS reach critical mass in...