D-Link DWS-3160-24TC - Chapter 56 Power Saving Command List

DWS-3160 Series Gigabit Ethernet Unified Switch CLI Reference Guide
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Chapter 56 Power Saving Command
List
config power_saving {state [enable | disable] | length_detection [enable | disable]} (1)
show power_saving
56-1 config power_saving
Description
This command is used to configure the power saving parameters found on this Switch. By default,
the power saving mode is enabled. The power saving function applies to the port with copper
media. Power is saved by the following mechanisms.
When the port has no link partner, the port automatically turns off and wakes up once a second to
send a single link pulse. While the port is turned off, a simple receive energy-detect circuit is
continuously monitoring energy on the cable. At the moment when energy is detected, the port
turns on fully as IEEE specification’s requirements. The power saving function is performed while
no link is detected and it will not affect the port capabilities while it’s link up.
When the port is link up, for shorter cable, the power consumption can be reduced by lowering the
signal amplitude since the signal attenuation is proportional to the cable length. The port will adjust
the power based on cable length and still maintain error free applications from both side of the link.
This mechanism will only be supported when hardware support cable diagnostics function.
Format
config power_saving {state [enable | disable] | length_detection [enable | disable]} (1)
Parameters
state - (Optional) Enable or disable the power saving function. The default state is enabled.
enable - Specifies that the power saving function will be enabled.
disable - Specifies that the power saving function will be disabled.
length_detection - (Optional) Enable or disable the length detection function. The default state is
disabled.
enable - Specifies that the length detection function will be enabled.
disable - Specifies that the length detection function will be disabled.
Restrictions
Only Administrators and Operators can issue this command.
Example
Te enable the power saving function: