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The improvement of the scalability of routing decisions is quite relevant in modern telecommunication networks. In this regard, effective approach is associated with the implementation of hierarchical routing. This involves carrying out a structural and functional decomposition of the network, based on the introduction and supporting of multi-level routing decisions. However, the existing protocol...
In modern telecommunication networks very acute problem is an increasing of scalability. The most effective solution is the usage of hierarchical routing which assumes that decomposition of the network into areas. The paper proposed the method of hierarchical inter-area routing based on the goal coordination principle. The proposed method is based on flow-based model of inter-area routing. In numerical...
Software Defined Networking (SDN) is an emerging paradigm to address the demands for flexible and agile network controllability. The fundamental idea of SDN is the physical separation of the network control plane from the data (forwarding) plane. This migration of control into programmable computing devices enables the underlying network infrastructures to be abstracted for applications and services...
Self-organization has potential for high scalability, adaptability, flexibility, and robustness, which are vital features for realizing future networks. Convergence of self-organizing control, however, is comparatively slow in some practical applications. It is therefore important to enhance convergence of self-organizing controls without sacrificing the above advantages. Controlled self-organization...
Software-Defined Networking has been gaining increasing attention in both the research and the industry communities. Separating the control and data planes has brought many advantages such as greater control plane programmability, more vendor independence, possibility of network virtualization, lowered operational expenses, etc. SDN deployments are possible in a variety of contexts: Enterprise networks,...
Open Shortest Path First (OSPF), a link state routing protocol, is a popular interior gateway protocol (IGP) in the Internet. Wide spread deployment and years of experience running the protocol have motivated continuous improvements in its operation as the nature and demands of the routing infrastructures have changed. Modern routing domains need to maintain a very high level of service availability...
The paper proposes the histogram-based density discovery scheme as an alternative complement in obtaining density to LOUVRE, a landmark-based routing in the vehicular urban environment. The histogram-based scheme does not have the scalability problem as the P2P density scheme. Furthermore, it better accurately determines the road connectivity by considering non-uniform density. The paper makes the...
As more and more mission critical services emerge on the Internet, there is a growing demand for the Internet to provide stringent service availability and reliability. More and more domains adopt multi-homed connection to expect increasing reliability. But the de facto inter-domain protocol - BGP spends a long period to converge to another stable state when one of the links of multi-homed domain...
Optical networks provide a clear opportunity to redesign the multi-domain routing paradigm. This paper reviews the current limitations in multi-domain routing as well as some of the research lines in the optical area.
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