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(2) Extended power saving for Gigabitethernet ports [AX1250S] [AX1240S]
Extended power saving is enabled when
the Switch regardless of the
setting. Extended power saving reduces power consumption more than the setting by the
power-control port cool-standby
Moreover, only Gigabitethernet ports can be configured for extended power saving.
Extended power saving is not applied to SFP ports.
Table 11-8 Gigabitethernet port extended power saving operation
Setting of Gigabitethernet port
#
0/25
shutdown
no shutdown
Legend:
Y: Gigabitethernet port extended power saving is enabled, and the Switch operates
in power saving manner.
--: Gigabitethernet port extended power saving is disabled, and the Switch operates
with normal power consumption.
#
For AX1240S-48T2C, extended power saving is applied to ports 0/49 and 0/50.
(3) Port blocked
By shutting down ports by using the
unused ports or unintended PoE power-receiving devices are stopped for power saving.
This can reduce the power consumption on ports together with (1) Power saving for ports in
the link-down status and (2) Extended power saving for Gigabitethernet ports [AX1250S]
[AX1240S] described above.
11.1.4 Sleep mode [AX1250S] [AX1240S]
The Switch is placed to sleep mode by the scheduling of the power-saving functionality. For
details about scheduling, see 11.1.6 Power saving scheduling.
In sleep mode, the power of the Switch is automatically turned off during the scheduled
periods. It is automatically turned back on at the times specified to start the Switch. The
PWR LED blinks green at long intervals during sleep mode. The Switch stops all
functionality including switching (frame forwarding) and remote access.
To release the Switch from sleep mode, the administrator can intentionally start the Switch
(forcible cancellation of sleep mode). Also, the Switch starts itself when it is released from
sleep mode after the scheduled time expires.
(1) Forcible cancellation of sleep mode
While the Switch is in sleep mode, hold down the RESET button on the front of the Switch
for at least three seconds until all LEDs on the front of the Switch turn on. The sleep mode
will be canceled and the Switch will start in schedule-disabled mode.
shutdown
power-control port cool-standby
configuration command.
Setting of Gigabitethernet port 0/26
shutdown
Y
--
shutdown
configuration command, power supplies to
11 Power Saving Functionality
is set for both Gigabitethernet ports on
configuration command
#
no shutdown
--
--
133
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