green ethernet
??????????????????????????????????????????????????? green ethernet
今天老大讓我測(cè)試交換機(jī)那個(gè)green ethernet 功能,我當(dāng)時(shí)還納悶,沒(méi)聽說(shuō)這個(gè)概念,上網(wǎng)查了一下,原來(lái)是節(jié)能的一個(gè)功能。其主要作用有兩個(gè):
1,綠色節(jié)能交換機(jī)將自動(dòng)偵測(cè)端口狀態(tài),如果某端口呈空閑狀態(tài),沒(méi)有連接其它網(wǎng)絡(luò)設(shè)備或是沒(méi)有數(shù)據(jù)交換,綠色交換機(jī)將使該端口自動(dòng)轉(zhuǎn)為“睡眠模式”,降低那個(gè)端口的電量從而減少能源消耗并降低產(chǎn)品運(yùn)行時(shí)所產(chǎn)生的熱能,同時(shí)還可延長(zhǎng)設(shè)備的生命周期。
2、綠色節(jié)能交換機(jī)另一個(gè)節(jié)能特性是在不損失交換機(jī)使用性能的前提下,可以根據(jù)線纜的長(zhǎng)度調(diào)節(jié)能源,也就是交換機(jī)通過(guò)分析線纜的長(zhǎng)度對(duì)能源進(jìn)行調(diào)節(jié),它能夠自動(dòng)對(duì)線纜長(zhǎng)度的進(jìn)行偵測(cè),精確計(jì)算該條網(wǎng)線正常工作時(shí)所需的電量,再予以供給。使源耗費(fèi)量大幅度地降低,從而達(dá)到節(jié)能及環(huán)保的目的,同時(shí)還能幫助用戶減少“不必要的”的開銷,降低使用成本。
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以下是我們交換機(jī)對(duì)這個(gè)功能的一個(gè)簡(jiǎn)單的解釋
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This feature enables the switch to perform the dynamic power management on the physical?? port. Now it supports two mode, Auto power down and short cable.
Auto Power Down Mode - This object determines whether or not auto power down mode from green feature is enabled for particular port. The factory default is disable . When the port link is down the PHY will automatically goes down for short period of time, and then wake up to check link pulses. This will allow performing auto-negotiation and saving power consumption when no link partner is present.
Short Cable Mode - This object determines whether or not short cable mode from green features?? enabled for particular port. The factory default is disable . When the port link up at 1Gbpsspeed, cable length test is performed and if the length of the cable is less then? 10m, PHYs are put into low power mode so only enough power is used to support a short cable.
轉(zhuǎn)載于:https://blog.51cto.com/576642026/652237
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