• The supported LLDP-MED TLVs
• The device type (Network Connectivity device or Endpoint (Class 1, 2, or 3))
By default, LLDP-MED information is automatically advertised when LLDP-MED is enabled. To disable
this advertisement, enter a command such as the following.
device(config)#no lldp advertise med-capabilities ports e 2/4 to 2/12
NOTE
Disabling the LLDP-MED capabilities TLV disables LLDP-MED.
To re-enable the LLDP-MED Capabilities TLV (and LLDP-MED) after it has been disabled, enter a
command such as the following.
device(config)#lldp advertise med-capabilities ports e 2/4 to 2/12
The LLDP-MED capabilities advertisement will appear similar to the following on the remote device, and
in the CLI display output on the Brocade device (
show lldp local-info
).
+ MED capabilities: capabilities, networkPolicy, location, extendedPSE MED device
type : Network Connectivity
Syntax:
[no] lldp advertisemed-capabilities
ports
ethernet
port-list
|
all
Extended power-via-MDI information
The extended Power-via-MDI TLV enables advanced power management between LLDP-MED
Endpoints and Network Connectivity Devices. This TLV provides significantly more information than the
802.1AB Power-via-MDI TLV referenced in
802.3 capabilities
on page 194. For example, this TLV
enables an Endpoint to communicate a more precise required power level, thereby enabling the device
to allocate less power to the Endpoint, while making more power available to other ports.
The LLDP-MED Power-via-MDI TLV advertises an Endpoint IEEE 802.3af power-related information,
including the following:
•
Power type
- indicates whether the LLDP-MED device transmitting the LLPDU is a power sourcing
device or a powered device:
‐
Power sourcing device/equipment (PSE)
- This is the source of the power, or the device
that integrates the power onto the network. Power sourcing devices/equipment have
embedded POE technology. In this case, the power sourcing device is the Brocade POE
device.
‐
Powered device (PD)
- This is the Ethernet device that requires power and is situated on
the other end of the cable opposite the power sourcing device.
•
Power source
- The power source being utilized by a PSE or PD, for example, primary power
source, backup power source, or unknown.
For Endpoint devices, the power source information indicates the power capability of the Network
Connectivity Device it is attached to. When the Network Connectivity device advertises that it is using its
primary power source, the Endpoint should expect to have uninterrupted access to its available power.
Likewise, if the Network Connectivity device advertises that it is using backup power, the Endpoint
should not expect continuous power. The Endpoint may additionally choose to power down non-
essential subsystems or to conserve power as long as the PSE is advertising that it is operating on
backup power.
Extended power-via-MDI information
FastIron Ethernet Switch Administration Guide
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