beautypg.com

Power over ethernet commands, Power mainpower maximum allocation – SMC Networks SMC Tiger 10/100 SMC6128PL2 User Manual

Page 498

background image

Command Line Interface

4-190

4

Power over Ethernet Commands

The commands in this group control the power that can be delivered to attached
PoE devices through the switch ports.

The switch’s power management enables total switch power and individual port
power to be controlled within a configured power budget. Port power can be
automatically turned on and off for connected devices, and a per-port power priority
can be set so that the switch never exceeds its allocated power budget. When a
device is connected to a switch port, its power requirements are detected by the
switch before power is supplied. If the power required by a device exceeds the
power budget of the port or the whole switch, power is not supplied.

power mainpower maximum allocation

This command defines a power budget for the switch (i.e., the power available to all
switch ports). Use the no form to restore the default setting.

Syntax

power mainpower maximum allocation <watts> [unit unit]

watts - The power budget for the switch. (Range: 37 - 180 watts)
unit - Specifies the stack unit. (Range: 1 - 8)

Default Setting

180 watts

Command Mode

Global Configuration

Command Usage

• Setting a maximum power budget for the switch enables power to be centrally

managed, preventing overload conditions at the power source.

• If the power demand from devices connected to the switch exceeds the power

budget setting, the switch uses port power priority settings to limit the supplied
power.

Table 4-56 PoE Commands

Command Group

Function

Mode Page

power mainpower

maximum allocation

Sets the maximum power available to all switch ports

GC

4-190

power inline compatible

Provides power to pre-standard PoE devices

GC

4-191

power inline

Turns power on and off for specific ports

IC

4-192

power inline

maximum allocation

Sets the maximum power available to specific switch ports

IC

4-192

power inline priority

Sets the priority for power supplied to specific ports

IC

4-193

show power inline status Displays the current status of power management on specific

ports or all ports

PE

4-194

show power mainpower

Displays the current status of power management for switch

PE

4-195