Basic Operation Guide 2014/02

Configures power-saving features.
Turns power-saving options on or off for modules.module [ slot-list | all ]
Turns power-saving options on or off for the LEDs
for a module, list of modules or all modules.
led [ slot-list | all ]
Enables or disables auto power down for slots.port-low-pwr [ slot-list | all ]
Configuring the savepower module option
The module option provides the ability to turn the slot power on or off. If no module is specified,
all slots are powered off. You can also specify all to turn off the power for all slots. If the command
is preceded by no, all the slots are powered on, if off already. (See Figure 23 (page 142).)
Figure 23 Example of savepower module Command
The savepower module command shuts down the specified modules in the order specified in
the command. The ports on these modules no longer pass traffic. Any management traffic (SNMP,
SSH, Telnet) that passes through these modules is interrupted. It can take up to two minutes to
power down all the specified modules. Check the Event Log to see the current status of the module
power down. This command applies to PoE/PoE+ modules as well as non-PoE/PoE+ modules.
Figure 24 Example of savepower module all Command
You can verify the status of the savepower command by using the show modules command or
by checking the log messages (for 8200zl and 5400zl switches.)
142 Power-Saving Features