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標題: [硬件] Dell Powerconnect 5548 [打印本頁]

作者: rickywk 時間: 2012-7-6 14:02 標題: Dell Powerconnect 5548

買o左兩隻，用HDMI做stacking，但受制於我部NB同desktop，暫時只食到大約50% network resources(GE計)
諗緊會唔會搵日用部NB+SSD再試下足唔足料

價錢平到震，兩隻switch $22000有找，仲連埋兩條HDMI stacking cable，不過買短o左，得0.3M

作者: fo2live 時間: 2012-7-6 15:15

等你消息~

作者: rickywk 時間: 2012-7-7 13:03

暫時知道點解食唔足GE，D佢老鼠，我部MBP由隻switch行cable diagnostic會話條cable有fault，但用第二部機+同一條cable就無事，下星期搵我部新NB跑一次先

作者: rickywk 時間: 2012-7-9 11:04

搵到原因...隻switch著o左"Link Short-Reach Energy Saving Mode "後會跌速，但Google後都唔明"Link Short-Reach Energy Saving Mode "係咩o黎...
雖然o係隻switch入面行cable test都會話cable open，但用部SSD notebook試，食得盡GE，即使用HDMI stacking都食得盡...

而RTFM咁寫:
Short-Reach Mode — Power usage is adjusted to the actual cable length.
In this mode, the VCT (Virtual Cable Tester) length test is performed to
measure cable length. If the cable is shorter than a predetermined length,
the switch reduces the power used to send frames over the cable, thus
saving energy. This mode is only supported on RJ45 ports.
Power savings and current power consumption in Short Reach mode can
be monitored. The total amount of saved energy can be viewed as a
percentage of the power that would have been consumed by the physical
interfaces had they not been running in Green Ethernet mode.

作者: qcmadness 時間: 2012-7-9 12:45

咪鬼慳電啦

作者: rickywk 時間: 2012-7-9 13:39

引用:

原帖由 qcmadness 於 2012-7-9 12:45 發表
咪鬼慳電啦

Green Ethernet mode係無事

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