Green Networking

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Green Networking… CPU uses 120 Watts CRT uses 150 Watts 8 hours of usage, 5 days a week = 562 kWatts if the computer is left on all the time without proper power saver modes, this can lead to 1,600 KWatts for a large institution, say a university of 40,000 students and faculty, the power bill for just computers can come to $2 million / year

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Green Networking….. What is green networking ? Green networking is the practice of selecting energy-efficient networking technologies and products, and minimizing resource use whenever possible.

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Green Networking…… Green networking practices include: Implementing virtualization. Practicing server consolidation. Upgrading older equipment for newer, more energy-efficient products. Employing system management to increase efficiency. Substituting telecommuting, remote administration and videoconferencing for travel.

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Green Networking…… G reen networking is considered as whose nodes may enter the so-called green node , considering to low power consumption. Today the application of green nodes is getting familiar because of its low power operation capabilities

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Green Networking…… Present Status.. Many complexities in network . Unnecessary traffic congestion More power wastages due to unnecessary idling of nodes. Frequent switching may result in failures of relays(AXE switching)

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Green Networking…… the advent of high-density computing equipment has sent power usage soaring. For instance, servers and their supporting infrastructure consumed an estimated 1.5% of US electricity in 2009, according to the Environmental Protection Agency . As a result, power consumption and other “ green ” issues are fast becoming the information technology (IT) industry’s biggest challenge. Inevitably, as these concerns grow, focus will broaden to all types of IT equipment, settling on one of the thirstiest devices; the local area network (LAN) switch, which can consume several thousand watts.

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Green Networking…… As many businesses develop “ green ” initiatives using best practices published by organizations like the Green Grid , IT managers will be forced to absorb some degree of responsibility for their organization’s power usage. With the same department responsible for equipment purchases and the power bill, the role of energy efficiency will grow considerably in importance for future equipment purchases. Furthermore, by reducing power consumption, equipment capacity is freed, enabling switch vendors to add more advanced technologies and software features to their product lines ..

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Green Networking…… What Makes Networking Equipment “ Green ”?

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Green Networking…… What Makes Networking Equipment “ Green ”? There is no formal definition of “ green ” in the networking equipment industry because of the number of factors that help equipment vendors develop more environmentally friendly products. Still in their early stages, green practices can best be described as the integration of technologies that significantly improve energy efficiency, as well as manufacturing processes and materials that significantly reduce waste and the use of t t oxic chemicals . To understand a vendor’s development of a green product strategy , it is important to briefly examine emerging “ green ” regulations and the components of networking equipment that drive energy efficiency.

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Green Networking…… Energy Efficient Components Improvements in the energy efficiency of networking equipment components have been slow, due to the high costs of designing equipment with energy-saving technologies and the increasing number of functions that switches perform in the network that require more power. Progress depends on the increase of research and development budgets, use of more expensive components, and other measures whose strategic importance can be difficult for vendors to justify from a short-term revenue perspective.

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Green Networking…… Processors Different processor manufacturers employ different strategies and technologies to conserve energy. Generally, designs with smaller transistors can lead to significant increases in energy efficiency and performance . Power Adaptors Inefficient power adaptors can waste significant amounts of energy. For example, a power adaptor with an efficiency rating of 70% will lose 30 Watts during conversion for every 100 Watts consumed. However, some switch vendors are beginning to ship higher efficiency adaptors with 80% to 90% efficiency ratings, saving significant amounts of energy in environments requiring redundant power supplies.

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Green Networking…… Cooling Fans that cool switches also drive up energy consumption. As a result, some manufacturers design switches that can dissipate heat more quickly, sometimes eliminating the need for a fan, and also increasing reliability. In higher performance switches, powering fans with high efficiency power adaptors and using fans that can adjust speed based on cooling needs can help conserve energy . Software In effort to maximize the efficiency of network equipment, vendors are working to intelligently control hardware components through specialized software. In the small/medium business (SMB) market, vendors are developing technologies to hibernate unused ports, and ultimately an entire device, when not in use. In the high-end market, the focus includes improving operating efficiency by controlling individual hardware components, and optimizing the efficiency of network-attached devices by using technologies such as virtualization. Looking forward, vendors in all markets hope to eventually incorporate technologies that can enable a switch to intelligently adjust its wire-speed based on network capacity needs, saving tremendous amounts of electricity.

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Green Networking…… Challenges for Vendors There are two major challenges vendors will face over the next couple of years. Adapting equipment to support the growing popularity of Power over Ethernet (PoE) is a crucial initiative. Furthermore, the capacity of equipment must also grow in order to support advanced features and network applications. Together, both will cause energy consumption to skyrocket beyond the closet or data centre's capacity limitations. Undoubtedly, this will put considerable strain on IT managers responsible for the power bill.

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Green Networking…… Power over Ethernet PoE technology transmits electrical power, along with data, to remote devices over standard twisted-pair cable in an Ethernet network. PoE is useful for powering IP telephones, wireless LAN access points, and other network-attached equipment where it would be inconvenient, expensive, or infeasible to supply power separately. The benefits of network-attached equipment have led to a rapid increase in the number of PoE port shipments. This causes major concerns for IT personnel, as PoE equipment typically consumes about ten times the energy of a standard switch.

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Green Networking…… Improving Energy Efficiency… To improve energy efficiency, there are two strategic directions being pursued by vendors within the industry. Some vendors are working from the bottom up, by using the most efficient components available for their equipment. Other vendors are working from the top-down, by seeking to first optimize network traffic across the network to reduce the stress on equipment . Cisco Cisco envisions enabling its networking equipment to intelligently control the power consumption of all IT equipment, although it could be several years before such a solution is available and widely deployed.

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Green Networking…… Improving Energy Efficiency… Everyone Else Alternatively, some switch vendors are taking a proactive approach, designing their equipment from the ground up with the most efficient hardware components available. Using rapid heat-dissipating raw materials, highly efficient power supplies, intelligent cooling systems, and advanced silicon solutions, there are significant equipment-level improvements in energy efficiency that are both easily measured and visible to the consumer. Aside from just immediate energy efficiency improvements, this strategy allows for scalability, giving IT managers the excess capacity to enable equipment with more advanced networking technologies and applications. Two vendors using a bottom-up, approach are 3Com and D-Link.

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Green Networking…… Conclusion…. “ Green ” is a competitive dynamic that is increasing in importance for the networking equipment industry, given the impact of power consumption on the company’s bottom line. Vendors who are best able to adapt as concerns over energy efficiency grow for network equipment, will have significant opportunities, including the chance to impact market share among the top vendors.

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Green Networking…… Glossary.. Server consolidation is an approach to the efficient usage of computer server resources in order to reduce the total number of servers or server locations that an organization requires. The practice developed in response to the problem of server sprawl , a situation in which multiple, under-utilized servers take up more space and consume more resources than can be justified by their workload