3Com 4500 Switch User Manual


 
2-2
To do… Use the command… Remarks
Enable the PoE feature
on a port
poe enable
Required
Disabled by default.
Configure PoE mode
for Ethernet ports
poe mode { signal | spare }
Optional
signal by default.
Configure the PoE
priority for Ethernet
ports
poe priority { critical | high | low }
Optional
low by default.
Configure
the relevant
features in
PoE profile
Configure the maximum
power for Ethernet
ports
poe max-power max-power
Optional
15,400 mW by
default.
Quit system view
quit
In system view
apply poe-profile profile-name
interface interface-type
interface-number [ to
interface-type interface-number ]
Enter
Ethernet
port view
interface interface-type
interface-number
Apply the
existing PoE
profile to the
specified
Ethernet port
In
Ethernet
port view
Apply the
existing
PoE
profile to
the port
apply poe-profile profile-name
Use either
approach.
Note the following during the configuration:
1) When the apply poe-profile command is used to apply a PoE profile to a port, some PoE features in
the PoE profile can be applied successfully while some cannot. PoE profiles are applied to Switch
4500 according to the following rules:
z When the apply poe-profile command is used to apply a PoE profile to a port, the PoE profile is
applied successfully only if one PoE feature in the PoE profile is applied properly. When the
display current-configuration command is used for query, it is displayed that the PoE profile is
applied properly to the port.
z If one or more features in the PoE profile are not applied properly on a port, the switch will prompt
explicitly which PoE features in the PoE profile are not applied properly on which ports.
z The display current-configuration command can be used to query which PoE profile is applied to
a port. However, the command cannot be used to query which PoE features in a PoE profiles are
applied successfully.
2) PoE profile configuration is a global configuration, and applies synchronously in the Expandable
Resilient Networking (XRN) system.
3) Combination of Unit creates a new Fabric. In the newly created Fabric, the PoE profile
configuration of the Unit with the smallest Unit ID number will become the PoE profile configuration
for the Fabric currently in use.
4) Split of Fabric results in many new Fabrics. In each newly created Fabric, the PoE profile
configuration of each Unit remains the same as it was before the split.