Detecting Legacy Devices And Allocating Power - Dell C9000 Series Networking Configuration Manual

extender to allocate less power to the endpoint, while making more power available to other port extender
ports.
By default, advertising extended power through dot3–TVLs is disabled.
NOTE: The port extender performs Layer 2 classification and participates in LLDP power negotiation only
when in Class mode. To use this feature, configure PoE in power management Class mode. For
information about Class mode, see
• Configure the system or an interface to advertise IEEE 802.3 power-via-mdi TLV to advertise its power
negotiation capabilities with the powered devices using LLDP.
LLDP CONFIGURATION or INTERFACE LLDP CONFIGURATION mode
advertise dot3-tlv power-via-mdi
Example of Advertising in LLDP Configuration Mode
The following example configures all the interfaces to advertise extended power though dot3–TLVs in
configuration mode.
Dell(conf-lldp)#advertise dot3-tlv power-via-mdi
Example of Advertising in LLDP Interface Configuration Mode
The following example configures interface peGigE 0/0/1 to advertise extended power though dot3–
TLVs.
Dell(conf)#interface peGigE 0/0/1
Dell(conf-if-pegi-0/0/1)#protocol lldp
Dell(conf-if-pegi-0/0/1-lldp)#advertise dot3-tlv power-via-mdi
Detecting Legacy Devices and
Allocating Power
To enable detection of legacy devices and allocation of inline power to the devices on a port extender, use
the power inline legacy pe pe—id stack-unit unit-number command in Configuration mode. To
disable detection of legacy devices, use the [no] power inline legacy pe pe-id stack-unitunit-
number command.
This command has the following parameters:
• pe pe-id — Specify the port extender ID. The range is from 0 to 255.
• stack-unit unit-number — Specify the stack unit number of the port extender. The range is from 0
to 7.
• Enable or disable detection and allocate inline power to legacy devices on a port extender.
CONFIGURATION
power inline legacy pe pe—id stack-unit unit-number
Example of Detecting and Allocating Power to Legacy Devices
Enabling PoE/PoE+ on a Port.
Power over Ethernet (PoE) 882