3Com Switch 4800G PWR 24-Port, Руководство по настройке

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1-7
Displaying PoE Configuration
To do… Use the command… Remarks
Display the current PD disconnection
detection mode of the switch
display poe disconnect
Display the PoE status of a specific port or
all ports of the switch
display poe interface
[
interface-type interface-number
]
Display the PoE power information of a
specific port or all ports of the switch
display poe interface power
[
interface-type interface-number
]
Display the PSE parameters
display poe powersupply
Display the status (enabled/disabled) of
the PoE over-temperature protection
feature on the switch
display poe
temperature-protection
Available in any
view
PoE Configuration Example
PoE Configuration Example
Network requirements
Switch A is a Switch 4200G supporting PoE, Switch B can be PoE powered.
z
The GigabitEthernet 1/0/1 and GigabitEthernet 1/0/2 ports of Switch A are connected to Switch B
and an AP respectively; the GigabitEthernet 1/0/8 port is intended to be connected with an
important AP.
z
The PSE processing software of Switch A is first upgraded online. The remotely accessed PDs are
powered by Switch A.
z
The power consumption of the accessed AP is 2,500 mW, and the maximum power consumption
of Switch B is 12,000 mW.
z
It is required to guarantee the power feeding to the PDs connected to the GigabitEthernet 1/0/8 port
even when Switch A is under full load.
Network diagram
Figure 1-1
Network diagram for PoE
Switch A
Network
GE1/0/2
GE1/0/1 GE1/0/8
Switch B AP AP