Mitigating routing issues in border gateway protocol for improving internet performance

Abstract

The service demand for the network applications with the current size and complexity was not envisaged at the primitive stage of the Internet The instance when the Internet is commercialized there was a strong requirement of routing protocols that maintain dynamic and flexible policies with high quality network performance For this the routing protocols need to evolve with the growing demand for Internet accordingly However in the diversity of routing protocols the Border Gateway Protocol is responsible for the connectivity and distribution of network traffic among multiple domains in the Internet Each domain is managed by the different authorities who are major contributors to the network performance newlineThe distance vector routing hop by hop mechanism is used in BGP Despite the fact it is fairly challenging to envision the path following the network traffic for effective performance considering the complete topological conditions The selection of a path among the several available paths is critical for the Internet routing Moreover misconfigurations of BGP attributes in routers can flood the wrong routes in the entire network for example the local routing decision based on Local Preference and Multi Exit Discriminator values can impact globally Consequently the problems such as route oscillations forwarding loop nonconverged states, forwarding of unstable routes, inconsistent paths inconsistent growth of routing tables and transitive loops may arise Apart from these challenges the traffic engineering load sharing considering the economic relationships quality of service routing etc are crucial concerns. However the researchers have suggested the optimization of BGP policies for enhanced network performance Moreover the recent proposals comprising flexible BGP policies have the potential to degrade the network performance newline newline