8.2.6.
Set system’s Reserve power
When using energy-saving mode, PoE switches according to the actual consumption of PD equipment
power to calculate the power consumption of the system.If there is a PD device in this mode
consumed power fluctuation is very big, will lead to damage of PoE switches under the heavy load
PoE equipment.
PoE switches provide Settings PoE system reserved power command to protect PoE switch power
has always been "surplus", the current consumption of power will not exceed the limit of PoE switch
itself.
System’s preserving power default is 0%.
For example, set up the system for the power of retention of 20%.
Switch#configure terminal
Enter configuration commands, one per line. End with CTRL+Z.
Switch(config)#
poe reserve-power
20
Switch(config)# no poe reserve-power
Set up command system to retain power, only in the current PoE switch power
supply management mode to save energy when.
In energy-saving mode to retain power, it may lead to port under electric has
access to electricity.
8.2.7.
Use hot start uninterrupted power supply function
If you need to restart the switch in practical applications, such as restart the PoE switches after
upgrade PoE switche's management software,But this time there are many PD equipment is in the
normal power supply on the PoE switch,If restart directly, may cause the working PD equipment off
the electricityand then to electricity
，
PD equipment work there will be a period of time interrupt.
The switch provides the hot start uninterrupted power supply,At the time of system restart, has been in
a state of power supply of PD equipment in the process of hot start PoE switches will not off
electricity.Hot start is completed, the system back to save the configuration file in the state.
Command
Function
Switch# configure terminal
Enter global configuration mode
Switch(config)#
poe reserve-power
int
Set to retain power of the percentage of the total
power of system, the range of 0% to 50%.
Switch(config)# no poe reserve-power
Restore the reserved power as the default
value, the default is 0%
