Considerations on Novel Network Routing Mechanism

Since routing is the cornerstone of a network, constructing new routing mechanisms is indispensable to novel network architectures. The present nature of current routing mechanisms in the network layer is based on the so-called single-next-hop. Therefore, a radical solution to network transmission congestion problem is required to change from the single-next-hop mode to something else to allow simultaneous traffic transmission on multiple paths. The Border Gateway Protocol (BGP) is now the unique inter-domain routing protocol used in the Internet. A new scalable hierarchical inter-domain routing architecture (s-idra) is proposed here to deal with the scalability problem posed to the current inter-domain routing. Other than scalability, the routing system is facing other challenges such as security, Quality of Service (QoS), multicast, mobility and adaptability to dynamic network topologies. Researches on routing protocols, especially on those employed in future information network architectures, will shoulder heavy responsibilities.