Cisco Systems WSC2960X48TDL Manual do Utilizador descarregar pdf (Página 94)

DETAILED STEPS

PurposeCommand or Action

Enters global configuration mode.configure terminal

Example:

Switch# configure terminal

Step 1

Specifies the physical port to be configured, and enters interface configuration

mode.

interface interface-id

Example:

Switch(config)# interface

gigabitethernet2/0/1

Step 2

Configures the PoE mode on the port. The keywords have these meanings:

power inline {auto [max max-wattage] |

never | static [max max-wattage]}

Step 3

• auto—Enables powered-device detection. If enough power is available,

automatically allocates power to the PoE port after device detection.

This is the default setting.

Example:

Switch(config-if)# power inline auto

• never —Disables device detection, and disable power to the port.

If a port has a Cisco powered device connected to it, do not use the

power inline never command to configure the port. A false link-up

can occur, placing the port into the error-disabled state.

Note

• static—Enables powered-device detection. Pre-allocate (reserve) power

for a port before the switch discovers the powered device. The switch

reserves power for this port even when no device is connected and

guarantees that power will be provided upon device detection.

The switch allocates power to a port configured in static mode before it

allocates power to a port configured in auto mode.

Returns to privileged EXEC mode.end

Example:

Switch(config-if)# end

Step 4

Displays PoE status for a switch or a switch stack, for the specified interface,

or for a specified stack member.

show power inline [interface-id | module

switch-number]

Step 5

Example:

Switch# show power inline

The module switch-number keywords are supported only on stacking-capable

switches.

Budgeting Power for Devices Connected to a PoE Port

When Cisco powered devices are connected to PoE ports, the switch uses Cisco Discovery Protocol (CDP)

to determine the CDP-specific power consumption of the devices, and the switch adjusts the power budget

accordingly. This does not apply to IEEE third-party powered devices. For these devices, when the switch

Catalyst 2960-X Switch Interface and Hardware Component Configuration Guide, Cisco IOS Release 15.0(2)EX

82 OL-29034-01

Configuring PoE

Budgeting Power for Devices Connected to a PoE Port

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