Performance evaluation of energy efficient ethernet

Reviriego, Pedro; Hernández, José Alberto; Larrabeiti, David; Maestro, Juan Antonio

doi:10.1109/lcomm.2009.090880

Cited by 118 publications

(109 citation statements)

References 4 publications

Supporting

Mentioning

102

Contrasting

Unclassified

Order By: Relevance

“…However, Table 1 shows that SFE values are relatively low, implying that the overheads of entering LPI mode become more significant as the time spent in LPI mode reduces. Stated another way, this suggests that the benefits of EEE saturate at medium or low loads, unless packets are coalesced as showed in [17]. Our example in [16] for a EEE NIC demonstrated that for a 1 Gb/s link, a 6% traffic load composed of evenly spaced packets prevented the link from entering into LPI mode altogether.…”

Section: Figure 1: Mode Transitions In Energy Efficient Ethernetmentioning

confidence: 87%

“…This time can be reduced by the transition overheads associated with activating (T w ) and putting it into LPI mode (T s ). During those transitions, there is significant energy consumption and the transition times are large compared with the frame transmission time [16,17]. The transition times for the different speeds are summarized in Table 1 and compared with the frame transmission times for a 1518 byte and a 64 byte packet.…”

Section: Figure 1: Mode Transitions In Energy Efficient Ethernetmentioning

confidence: 99%

See 1 more Smart Citation

An experimental power profile of Energy Efficient Ethernet switches

Sivaraman

Reviriego

Zhi

et al. 2014

Computer Communications

Self Cite

View full text Add to dashboard Cite

The access network is believed to account for 70-80% of the overall energy consumption of wired networks, attributable in part to the large number of small and inefficient switches deployed in typical homes and enterprises. In order to reduce the per-bit energy consumption of such devices, the Energy Efficient Ethernet (EEE) standard was approved as IEEE 802.3az in 2010 with the aim of making Ethernet devices more energy efficient. However, the potential for energy savings, and their dependence on traffic characteristics, is poorly understood. This paper undertakes a comprehensive study of the energy efficiency of EEE, and makes three new contributions: First, we perform extensive measurements on three commercial EEE switches, and show how their power consumption profile depends on factors such as port counts, traffic loads, packet sizes, and traffic burstiness. Second, we develop a simple yet powerful model that gives analytical estimates of the power consumption of EEE switches under various traffic conditions. Third, we validate the energy savings via experiments in typical deployment scenarios, and estimate the overall reduction in annual energy costs that can be realized with widespread adoption of EEE in the Internet.

show abstract

Section: Figure 1: Mode Transitions In Energy Efficient Ethernetmentioning

confidence: 87%

Section: Figure 1: Mode Transitions In Energy Efficient Ethernetmentioning

confidence: 99%

An experimental power profile of Energy Efficient Ethernet switches

Sivaraman

Reviriego

Zhi

et al. 2014

Computer Communications

Self Cite

View full text Add to dashboard Cite

show abstract

“…In the simulations the energy consumption in the low power mode was assumed to be 10% that during active mode and during mode transitions [7]. Figure 4 Energy Consumption versus loadfor 1,500 and 9,000 byte frames for JOGBase-T.…”

Section: Effects Of a Larger Mtu On Energy Efficient Ethernetmentioning

confidence: 99%

“…In EEE, there is significant power consumption in active mode and during transitions, whereas large savings are achieved in low power mode. However, when isolated frames are transmitted frequently, there is a significant overhead due to mode transitions since the frame transmission times can be shorter than the frame transition times themselves [7]. For example, a 1,500-byte frame takes 120us, 12us or l.2us to be transmitted at 100Mbps, 1 Gbps and IOGbps, respectively.…”

Section: Introductionmentioning

confidence: 99%

Increasing the MTU size for energy efficiency in ethernet

Reviriego¹,

Sánchez‐Macian²,

Maestro³

et al. 2010

IET Irish Signals and Systems Conference (ISSC 2010)

Self Cite

View full text Add to dashboard Cite

“…A simple policy would be to enter Active mode when packets are queued in the transmit queue in the interface and enter LPI mode when the queue is empty. Such a policy has been found to be inefficient (that is, wasteful of energy) due to excessive transitions between the Active and LPI modes [25]. Each transition incurs a delay and energy use.…”

Section: Introductionmentioning

confidence: 99%

Saving energy in LAN switches: New methods of packet coalescing for Energy Efficient Ethernet

Mostowfi

Christensen

2011

2011 International Green Computing Conference and Workshops

View full text Add to dashboard Cite

Abstract-Small or home office (SOHO) Ethernet LAN switches consume about 8 TWh per year in the U.S. alone. Despite normally low traffic load and numerous periods of idleness, these switches typically stay fully powered-on at all times. With the standardization of Energy Efficient Ethernet (EEE), Ethernet interfaces can be put into a Low Power Idle (LPI) mode during idle periods when there are no packets to transmit. This paper proposes and evaluates a new EEE policy of synchronous coalescing of packets in network hosts and edge routers. This policy provides extended idle periods for all ports of a LAN switch and thus enables energy savings deeper than in the Ethernet PHY only. We evaluate our method using an ns-2 simulation model of a LAN switch. We show that our method can reduce the overall energy use of a LAN switch by about 40%, while introducing limited and controlled effects on typical Internet traffic and TCP.

show abstract

Performance evaluation of energy efficient ethernet

Cited by 118 publications

References 4 publications

An experimental power profile of Energy Efficient Ethernet switches

An experimental power profile of Energy Efficient Ethernet switches

Increasing the MTU size for energy efficiency in ethernet

Saving energy in LAN switches: New methods of packet coalescing for Energy Efficient Ethernet

Contact Info

Product

Resources

About