Modeling the Integration of IGP and BGP by Keeping MPLS Architecture

Abstract

This article explores the key characteristics of integrating IGP and BGP protocols to enhance the scalability, resilience, and manageability of modern network infrastructures. The research addresses the limitations of operating IGP and BGP independently by proposing their integration into a unified MPLS-based architecture. This integration aims to improve scalability, reduce convergence time, and optimize resource management in increasingly complex network environments. The study includes an analysis of the theoretical foundations of IGP and BGP technologies and reviews current approaches to segmented and integrated routing. Special attention is given to the mathematical model involving RFC 3107 and RFC 4655 extensions, the Next-Hop Self function, and the role of border routers in bridging routing information exchange between local and global levels. Using analytical methods and computer simulations, the study demonstrates that the integrated model reduces convergence time (down to 50 ms) and enhances routing efficiency. The scientific novelty lies in the proposed new approach to implementing IGP and BGP within MPLS technology. The findings are particularly relevant for telecommunications professionals engaged in the detailed analysis and optimization of routing protocols, as well as researchers focused on the integration of IGP and BGP to improve network performance and scalability.