Multi-protocol label switching (MPLS) is rapidly emerging technology, which plays a key role in next generation networks by enhancing speed, scalability, delivering QoS and traffic engineering features. MPLS is a framework that provides for the efficient designation, routing, forwarding and switching of traffic flows through the network. In MPLS traffic engineering signaling protocols are used to increase the performance of traffic engineering in MPLS. This paper presents an analysis of MPLS signaling protocols for traffic engineering. The comparative study of signaling protocols RSVP-TE and CR-LDP is conducted on the aspects of LSP reliability and LSP adaptability to show that MPLS provides improved network performance for heavy traffic environments.

1. S. Veni, Dr. G. M. Kadhar Nawaz and P. Praba, "Performance Analysis of Network Traffic Behavior in Conventional Network over MPLS", Proc of ICCCCT 2010 IEEE International Conference, Nagercoil, Tamil Nadu, India, pp. 222-226, 2010.
2. Ahmed Sameh, Sherif Wagih, Qusay Salama, "Dealing with Quality of Service in Hybrid Wired-Wireless Networks", Proc of Second International Conference on Network Applications, Protocols and Services, Kedah, pp. 105-109, 2010
3. Haris Hodzic, Sladjana Zoric, "Traffic Engineering with Constraint Based Routing in MPLS Networks", Proc of 50th International Symposium ELMAR-2008, Zadar, vol. 1, pp. 269-272, 2008
4. Web ProForum Tutorials, "Multiprotocol Label Switching (MPLS)", Proc of the International Engineering Consortium, pp. 1-24, http://www. iec. org
5. Jamali, A. Naja, N. El Ouadghiri, D. Benaini, R. , INPT, Rabat, Morocco, "Improving Quality of Service (QoS) in Multi-Protocol Label Switching Module", Proc of Microwave Symposium (MMS), 2009 Mediterrannean, Tangiers, pp. 1-4, 2009
6. http://www. mplsinfo. org/technology. html
7. Ning Zhang, Hong Bao, China, "Research on Traffic Technology in Communication Network", Proc of International Conference on Networking and Digital Society, Guiyang, Guizhou, vol. 2, pp. 52-55, 2009
8. Gaeil Ahn and Woojik Chun, Chungnam National University, Korea, "Design and Implementation of MPLS Network Simulator (MNS) supporting QoS", Proc of 15th International Conference on Information Networking, pp. 694-699, 2001
9. Rosen E. , Viswanathan A. , and Callon R. , "Multiprotocol Label Switching Architecture", RFC3031, January 2001. Available: HTTP://www. ietf. org/rfc/rfc3031. txt
10. Andersson L. and Bryant S. "The IETF Multiprotocol Label Switching Standard: The MPLS Transport Profile Case", Proc of IEEE Internet Computing, July-Aug. 2008, Page(s):69 – 73
11. L. Zhang et al, "Resource Reservation Protocol (RSVP)" IETF RFC 2205, Sep. 1997.
12. B. Jamoussi et al, "Constraint-Based LSP Setup using LDP" IETF RFC 3212, Jan. 2002.
13. D. Awduche et al, "RSVP-TE: Extensions to RSVP for LSP Tunnels" IETF RFC 3209, Dec. 2001
14. J. Wroclawski, "The Use of RSVP with IETF Integrated Services" IETF RFC 2210, Sep. 1997.
15. Mahesh Kr. Porwal, Anjulata Yadav, S. V. Charhate, "Traffic Analysis of MPLS and Non MPLS Network

Qos Mpls Mpls-te Cr-ldp Rsvp Rsvp-te