An Open Shortest Path First (OSPF) protocol is the most used interior gateway protocol and computation intensive protocol where energy consumption in Internet Protocol (IP) networks is the main concern. The energy in an IP network can be saved by allowing a subset of IP router interfaces on sleep mode setting during the low traffic hours through the model of “move” by dint of an Energy Aware Routing (EAR) strategy, which is completely compatible with OSPF and is based on the “Shortest Path Tree (SPT) exportation” techinque or “Dijkstra's Algorithm”. In case of heavy traffic hours, the EAR strategy is not usable and may cause denial of service. The strategy implemented can help a network operator to control the network performance and allow a smoothed QoS degradation. This performance evaluation study permits to save about 30% of network links with a insignificant rise of link loads and network path lengths.
Keyword: energy consumption, EAR strategy, performance evaluation.
An Open Shortest Path First (OSPF) protocol enhancement to save energy using Energy Aware Routing (EAR) strategy
Open Shortest Path First (OSPF) is a link-state routing protocol which uses link state routing algorithm for Internet Protocol (IP) networks.Using OSPF, th convergence of a network can be done in very few seconds, loop-free paths can be guaranteed and better load-sharing on external links can be achievd. Every change in the topology of the network is identified within seconds using OSPF and it instantaneously computes the “shortest path tree” for every route using “Dijkstra's algorithm” . For that reason, OSPF requires a router which have a more powerful processor and more memory than any other routing protocols which leads to more elect...
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...efining a new and a better version of OSPF protocol that can support EAR to reduce more percentage of energy consumption.
Works Cited
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The routing protocols for UWSNs can be categorized into two classes according to the number of the sinks,which is the destination and the final
In this lab, we used Transmission Control Protocol (TCP) which is a connection oriented protocol, to demonstrate congestion control algorithms. As the name itself describes, these algorithms are used to avoid network congestion. The algorithms were implemented in three different scenarios i.e. No Drop Scenario, Drop_Fast Scenario and Drop_NoFast Scenario.
Perhaps the most redundant, fault-tolerant of all network topologies is the mesh LAN. Each node is connected to every other node for a true point-to-point connection between every device on the network.
Miller, A.B. (2001), Bluetooth Revealed: The Insiders Guide to an Open Specification for Global Wireless Communications, 2nd Edition, USA, Prentice Hall [Accessed 6th April, 2008]
The internet explosion has changed how we go about our everyday lives. The thirst for information and the need to ‘always be connected’ is spawning a new era of communications. This new era will continue to spur the need for higher bandwidth technologies to keep pace with processor performance. Because of Moore’s law, computing today is limited less by the computer’s performance than by the rate at which data can travel between the processor and the outside world. Fiber-optic solutions are replacing copper-based solutions, which can no longer meet the bandwidth and distance requirements needed for worldwide data communications [3]. Over the last decade, optical communication technologies have migrated steadily from long-haul backbones to the network edge, invading metropolitan area networks (MANs) and campus-level ...
Also, it requires a fast and secure communication to monitor real-time connection status to act as Energy Manager. [SANCHEZ]
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When every IT professional starts their journey into the IT Sector, they are bound to come across social issues which will have to be dealt with professionally. One important Issue is being green in Information Technology. The earth’s resources are continuously becoming scarce whilst the demand for them increases sharply. Every IT professional should understand that power consumption does not cover the whole green IT spectrum. Recycling dangerous electronic waste, optimising/virtualising servers to distribute workloads, having a long term green policy, reducing your workplace carbon foot print such as the paperless desk and an efficient data centre-business continuity model; these are a few examples of issues that professional must consider as these issues all occur in the green IT world.
Ans. The answer lies in algorithmic efficiency which is one of strategy for green computing that provides better power management and higher energy utilization.
Kim, H & Feamster, N 2013, 'Improving network management with software defined networking', Communications Magazine, IEEE, vol. 51, no. 2, pp. 114-9.
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