Users Guide

1. Ports with low priority are shut down first.
2. Ports with a high priority are shut down second.
3. Ports with a critical priority are shut down third.
NOTE: When you configure the ports with the same priority levels, the port number determines
which port has the highest priority (port 1 has the highest priority; port 48 has the lowest
priority). The ports with the higher interface numbers for inline power disable first. The ports
with the lower interface numbers have the highest priority. For example, if you configure ports
1, 2, 47, and 48 with a low priority and the inline power available becomes less, PoE is disabled
on the ports in the following order:
a. port 48
b. port 47
c. port 2
d. port 1
NOTE: Avoid allocating more power than necessary to a port because allocated power is made
unavailable to other ports regardless of whether it is consumed when using the power inline
max_milliwatts command. Typical IP phones use 3 to 10 Watts.
The power inline command has the following parameters:
• max_milliwatts — (OPTIONAL) Specify the maximum inline power that is allocated to a powered
device connected to the interface. The range if from 440 to 30000 mW. When you do not configure a
power value, the system uses the default value (30000 mW).
NOTE: The max_milliwatts option only works when you use Static Management mode. When
you enable Class mode, the
max_milliwatts option has no effect on the interface. For
information about Class Power Management mode, see Configuring Power Management Mode
- Class and Static Mode.
• priority — Enter the keyword priority to configure the powered device to connect to the
interface.
• critical — Enter the keyword critical to set the PoE priority level as critical.
• high — Enter the keyword high to set the PoE priority level as high.
• low — Enter the keyword low to set the PoE priority level as low. By default, all ports are set to low
priority.
• Configure the maximum power allocation and priority for the powered device connected to a port
extender interface.
Interface Mode
power inline {[max_milliwatts] | priority {critical | high | low}}
The following example sets the maximum allocated power to interface peGigE 255/0/1 3000 mW.
Example of Setting the Maximum Allocated Power to an Interface
Dell(conf)#interface peGigE ?
PE-ID/UNIT/PORT PE Gigabit Ethernet interface number
Dell(conf)#int peGigE 0/0/1
Dell(conf-if-pegi-255/0/1)#power inline ?
<440-30000> Max milliwatts (default = 30000)
priority Configure poe priority
Dell(conf-if-pegi-0/0/1)#power inline 30000
Example of Setting the Priority to Critical
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Power over Ethernet (PoE)