Abstract
Nowadays, the rapidly increasing energy consumption of communication equipment is an economic and environmental problem that needs to be addressed. Small Local Area Networks (LAN) switches in the US alone consume about 8 TWh per year that corresponds to hundreds of millions of US dollars in electricity. A main reason is communication equipment, due to the fact that, Ethernet switches have to active all days even in low-traffic time. There are many approaches to make the switches sensitive with the different traffic load environment, but they have to put some changes to current Ethernet that cause the incompatibility issues. This paper proposes a new device called Modified Multiplexer (MUXER), which can control the power functions of switches without modifying the current Ethernet protocol. The MUXER devices are put before the switches in the network, which provide some functions to transfer incoming Media Access Control (MAC) data frames to the corresponding switches managed by MUXERs. By using the proposed device, the wasted energies in the network can be reduced, especially in the specified low-traffic time. We describe the result of numerical analysis and compare detail power consumption data between a normal and a network where MUXERs are installed. In this work, the explained result shows that if a network administrator can estimate the number of MUXER needed for a particular network and install accordingly, our device can provides a significant energy saving.
Highlights
The Internet is rapidly becoming the major consumer of using electricity with measurable impacts.The hubs, switches and routers comprise the core of the Internet in order to guarantee stable and real-time properties at any time
It causes a large consumption of energy when these devices must be fully activated even if they are in low-traffic conditions for a long time
The paper makes a comparison about the power consumption in low-traffic condition between a normal Local Area Networks (LAN) without MUXER and another LAN within some MUXERs
Summary
The hubs, switches and routers comprise the core of the Internet in order to guarantee stable and real-time properties at any time. It causes a large consumption of energy when these devices must be fully activated even if they are in low-traffic conditions for a long time. A report said that the energy consumption of these devices is approximate around 150.4 kilowatt-hour per year (kWh/year) in 2010 [1]. In 2010, it was estimated that 11 percent of the commercial sector electricity consumption was due to electronic office and telecommunication equipment [1]. All of the network equipment that are connected to the Internet via Ethernet links have link speed range from 100 Mbps to 1 Gbps, eventually up to 10 Gbps and 90 percent of the Internet traffics come in and out on Ethernet ports [4]
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