Quick Reference Guide

Configuring Interfaces | 125
Figure 7-88. Sample of Output of show inlinepower Command for a Switch
Status field: In Figure 7-88, the sample output shows the Status of “Searching” for most ports. Those ports
are not connected to powered devices, but they have been left in their default PoE state of enabled.
Class field: As mentioned above, the S50V learns the Class value, as displayed in Figure 7-88, from the
device connected to the port, based on the values in the IEEE802.3af specification; 0 is displayed if the
value cannot be learned from device. The S50V allows the connected device to draw power as required.
The Class value does not play a role in power allocation.
Limit field: The Limit value displayed in Figure 7-88 is 18 watts by default. You can use the
inlinepower
limit command to set a higher (up to 20 watts) or lower limit. If overall power demand is not a constraint,
the switch will allow the powered device to draw up to 1 watt more than the configured limit.
Threshold field: Figure 7-89 shows the PoE status for each unit in the stack. The value in the Threshold
field is controlled by the
inlinepower threshold command. This command can be used for controlling the
total power demand on a common resource or for controlling other factors, such as heat buildup, related to
the power use. This command does not spread a power budget across units in a stack. Instead, it simply
limits the power budget to some percentage of the theoretical maximum of 360 watts. So, for example, if
you set the value at 80, which is the default, the power budget would be 288 watts.
Figure 7-89. Example Output of show inlinepower Command for a Stack
Force10-S50V >show inlinepower all
Slot Admin Output
Port Type Mode Class Priority Power Limit Status
------ --------------- ------- ----- --------- ------ ----- ---------
1/0/1 Enable 0 Low 0.000 18 Searching
1/0/2 Enable 0 Low 0.000 18 Searching
1/0/3 Enable 0 Low 0.000 18 Searching
1/0/4 Enable 0 Low 0.000 18 Searching
1/0/5 Enable 0 Low 0.000 18 Searching
Force10-S50V >show inlinepower
Unit Status Power(W) Consumption(W) Usage(%) Threshold(%) Trap
---- ------ -------- -------------- -------- ------------ ----
1 Auto 360 22 6.11 100 enable