Configuring The Switch To Detect Legacy Pds; Configuring The Operator Limit - Extreme Networks ExtremeWare XOS Guide Manual

Power Over Ethernet
Although the percentage of used to budgeted power is measured by each PoE module, you set the
threshold for sending the event for the entire switch. That is, once any PoE module passes the
configured threshold, the system sends an event.
The default value for this usage threshold is 70%. You can configure the usage threshold to be any
integer between 1% and 99%.
To configure the usage threshold, issue the following command:
configure inline-power usage-threshold <threshold>
To reset the usage threshold to 70%, use the following command:
unconfigure inline-power usage-threshold
To display the currently configured usage threshold, use the following command:
show inline-power

Configuring the Switch to Detect Legacy PDs

The PoE module can detect non-standard, legacy PDs, which do not conform to the IEEE 802.3af
standard, using a capacitance measurement. However, you must specifically enable the switch to detect
these non-standard PDs; the default value for this detection method is disabled.
This configuration applies to the entire switch; you cannot configure the detection method per slot.
The switch detects PDs through capacitance only if both of the following conditions are met:
The legacy detection method is enabled.
●
The switch unsuccessfully attempted to discover the PD using the standard resistance measurement
●
method.
To enable the switch to detect legacy, non-standard PDs, use the following command:
enable inline-power legacy slot <slot>
To reset the switch to the default value, which does not detect legacy PDs, use the following command:
disable inline-power legacy slot <slot>
To display the status of legacy detection, use the following command:
show inline-power

Configuring the Operator Limit

You configure the maximum amount of power that the specified port can deliver to the connected PD,
in milliwatts. The default value is 15400 mW, and the range is 3000 to 16800 mW.
If the operator limit for a specified port is less than the power drawn by the legacy PD, the legacy PD is
denied power.
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ExtremeWare XOS 11.3 Concepts Guide