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Survivability and energy efficiency are in conflict with each other on network resources usage in IP networks. The basic principle to achieve high survivability is via provisioning backup paths over spare capacity. However, in designing an energy efficient network, the target is the opposite. In order to minimize energy consumption, routing and traffic engineering techniques are applied to aggregate...
Advanced Metering Infrastructure (AMI) is envisioned to have the potential to revolutionize the power grid making it the “Smart Grid”. AMI, through the use of “smart meters” and high-speed networks, promises to strengthen both the stability and sustainability of the grid. The vision of AMI is to enhance and improve the grid by providing fine grained control over pricing and usage to both the utility...
Autonomic management capabilities of the Future Internet can be provided through a recently proposed service architecture called NetServ. It consists of the interconnection of programmable nodes which enable dynamic deployment and execution of network and application services. This paper shows how this architecture can be further improved by introducing the OpenFlow architecture and implementing the...
In order to mitigate the greenhouse effects and reduce environmental pollution, energy saving has become an important issue in designing the next generation Internet. Shutting down the network devices carrying light loads and redirecting their traffic flows to other routes is a way to decrease energy consumption. An energy efficient network has to dynamically determine the optimal active links to...
In order to reduce the greenhouse effects and environmental pollution, energy saving has become important in designing next the generation networks. Shutting down the network devices carrying light loads and redirecting the traffic flows to other routes is a way to decrease network energy consumption. Since traffic demands among node pairs vary in different time periods, the energy efficient network...
As a failure occurs, the affected traffic is quickly switched to backup paths for a network performing a fast IP rerouting. However, the rerouted traffic may cause congestion along the backup paths that would result in more packet losses than purely discarded the affected flows. In this paper, we take the concept of interface specific forwarding (ISF) to provide more flexibility in determining load...
As a failure occurs, the affected traffic is quickly rerouted to backup paths for a network performing a fast protection scheme. Such a prompt reaction is aimed to reduce the damages caused by a failure. However, in some cases, the rerouted traffic may cause congestion along the backup paths which would lead to more packet losses than purely discarded affected flows. In this paper, we propose a load-balanced...
In this paper, we consider one light-path based and two light-tree based traffic grooming schemes for supporting IP multicast services. We made performance comparisons for call blocking probability and bandwidth blocking probability on those schemes. Simulation results reveal that light-path scheme has lower blocking probability and less consumes bandwidth consumption as IP demand volumes are small...
In this paper, we propose a non-weighted load balanced fast local protection scheme for survivable IP networks. Unlike conventional shortest path based routing, we relax shortest path constraints in computing working and backup routes to achieve load balancing purposes. Once a failure occurs, those nodes adjacent to the failure point use their backup routing tables to achieve fast local failure recovery...
The first end-to-end 100 G transport of native IP packet traffic over 1520-km field deployed fiber is realized with multi-suppliers' 112-Gb/s single-carrier real time coherent DP-QPSK DWDM transponder, 100 GE router cards, and 100 G CFP interfaces.
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