Optimal configuration of Energy-Efficient Ethernet
2012; Elsevier BV; Volume: 56; Issue: 10 Linguagem: Inglês
10.1016/j.comnet.2012.03.006
ISSN1872-7069
AutoresSergio Herrerı́a-Alonso, Miguel Rodríguez‐Pérez, Manuel Fernández‐Veiga, Cándido López-Garcı́a,
Tópico(s)Network Time Synchronization Technologies
ResumoThe IEEE 802.3az standard provides a new low power mode that Ethernet network interfaces can use to save energy when there is no traffic to transmit. Simultaneously with the final standard approval, several algorithms were proposed to govern the physical interface state transition between the normal active mode and the new low power mode. In fact, the standard leaves this sleeping algorithm unspecified to spur competition among different vendors and achieve the greatest energy savings. In this paper, we try to bring some light to the most well known sleeping algorithms, providing mathematical models for the expected energy savings and the average packet delay inflicted on outgoing traffic. We will then use the models to derive optimum configuration parameters for them under given efficiency constraints.
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