Published On: August 6ᵗʰ, 2019 02:03

Cisco Enterprise Network Compute System Switch Command Reference

Power over Ethernet Commands

power inline

To configure the inline power administrative mode on a Gigabit Ethernet interface, use the power inline command in interface switch configuration mode. To disable the inline power administrative mode, use the no form of the command.

power inline { auto| never}

no power inline

Syntax Description

auto

Turns on the device discovery protocol and supplies power to the device.
never

Turns off the device discovery protocol and stops supplying power to the device.

Command Default

The device discovery protocol is turned on and power is supplies to the device.

Command Modes

Interface switch configuration (config-switch-if)

Command History

Release Modification
3.5.1

This command was introduced.

Usage Guidelines

None

Examples

The following example shows how to configure the inline power administrative mode on a Gigabit Ethernet interface:

nfvis(config-switch)# interface gigabitEthernet 1/0
nfvis(config-switch-if)# power inline auto
nfvis(config-switch-if)# commit
nfvis(config-switch-if)# end

power inline four-pair

To enable the spare pair to supply power, use the power inline four-pair command in interface switch configuration mode. To cancel the configuration, use the no form of the command.

power inline four-pair forced

no power inline four-pair

Syntax Description

forced

Forces the spare pair to supply power. It uses 60W PoE.

Command Default

None

Command Modes

Interface (Gigabit Ethernet) switch configuration (config-switch-if)

Command History

Release Modification
3.5.1

This command was introduced.

Usage Guidelines

This command should only be used for ports that are connected to devices that do not support the LLDP protocol or the new 4-wire power through MDI TLV (like UPOE splitter). This command overrides any port mode or port limit configuration.

Examples

The following example shows how to enable the forced power supply with the spare pair:

nfvis(config-switch)# interface gigabitEthernet 1/0
nfvis(config-switch-if)# power inline four-pair forced
nfvis(config-switch-if)# commit
nfvis(config-switch-if)# end

power inline limit-mode

To configure the inline power administrative mode, use the power inline limit-mode command in switch configuration mode. To restore the default configuration, use the no form of this command.

power inline limit-mode { class | port}

no power inline limit-mode

Syntax Description

class

Specifies the class power limit.
port

Specifies the port power limit.

Command Default

The default mode is class.

Command Modes

Switch configuration (config-switch)

Command History

Release Modification
3.5.1

This command was introduced.

Usage Guidelines

All PoE commands are supported only on Cisco ENCS 5408 and Cisco ENCS 5412 devices.

Examples

The following example shows how to configure inline power on the Cisco ENCS:

nfvis(config-switch)# power inline limit-mode class
nfvis(config-switch)# commit
nfvis(config-switch)# end

power inline limit

To configure the power limit per port, use the power inline limit command in interface switch configuration mode. To cancel the power limit configuration, use the no form of the command.

power inline limit value

no power inline limit

Syntax Description

value

Specifies the power limit for the port in milliwatt. Valid range is from 0 to 60000. The default value is 30W.

Command Default

None

Command Modes

Interface (Gigabit Ethernet) switch configuration (config-switch-if)

Command History

Release Modification
3.5.1

This command was introduced.

Usage Guidelines

The operational power limit is the minimum of the configured power limit value and the maximum power capability on port. For example, if the configured value is higher than 15.4W on a PoE port, the operational power limit is 15.4W.

Examples

The following example shows how to configure power limit on the Gigabit Ethernet interface 1/0:

nfvis(config-switch)# interface gigabitEthernet 1/0
nfvis(config-switch-if)# power inline limit 30000
nfvis(config-switch-if)# commit
nfvis(config-switch-if)# end

power inline powered-device

To add a description of the device type, use the power inline powered-device command in interface switch configuration mode. To remove the description, use the no form of the command.

power inline powered-device word

no power inline powered-device

Syntax Description

word

Describes the device type.

Command Default

None

Command Modes

Interface (Gigabit Ethernet) switch configuration (config-switch-if)

Command History

Release Modification
3.5.1

This command was introduced.

Examples

The following example shows how to add a description for the device:

nfvis(config-switch)# interface gigabitEthernet 1/0
nfvis(config-switch-if)# power inline powered-device ip-phone
nfvis(config-switch-if)# commit
nfvis(config-switch-if)# end

power inline priority

To configure the interface inline power management priority, use the power inline priority command in interface switch configuration mode. To restore the default configuration, use the no form of the command.

power inline priority { critical | high | low }

no power inline priority

Syntax Description

critical

Specifies that the device operation is critical.
high

Specifies that the device operation is high priority.
low

Specifies that the device operation is low priority.

Command Default

The inline power management priority is set to low priority

Command Modes

Interface (Gigabit Ethernet) switch configuration (config-switch-if)

Command History

Release Modification
3.5.1

This command was introduced.

Examples

The following example shows how to configure the interface inline power management priority:

nfvis(config-switch)# interface gigabitEthernet 1/0
nfvis(config-switch-if)# power inline priority high
nfvis(config-switch-if)# commit
nfvis(config-switch-if)# end

show switch power inline

To display information about the inline power for all interfaces, use the show switch power inline command in privileged EXEC mode.

show switch power inline [ consumed-power | nominal-power | power-limit-mode ]

Syntax Description

consumed-power

Displays total consumed power.
nominal-power

Displays total nominal power.
power-limit-mode

Displays inline power administrative mode.

Command Default

Inline power information for all interfaces is displayed.

Command Modes

Privileged EXEC (#)

Command History

Release Modification
3.5.1 This command was introduced.

Examples

The following is a sample output of the show switch power inline command in privileged EXEC mode:

nfvis# show switch power inline
power inline power-limit-mode "Class based"
power inline nominal-power 200
power inline consumed-power 10

show switch interface inline-status

To display the inline power status of all interfaces or a specific interface, use the show switch interface inline-status command in privileged EXEC mode.

show switch interface inline-status [ gigabitEthernet interface-id ]

Syntax Description

gigabitEthernet interface-id

Specifies the Gigabit Ethernet interface ID.

Command Default

Displays the inline power status of all interfaces.

Command Modes

Privileged EXEC (#)

Command History

Release Modification
3.5.1

This command was introduced.

Usage Guidelines

For verification and the command output display, use the show switch interface inline-status command. For debugging, use the switch show interface inline-status command.

Examples

The following command output displays the inline power status of all interfaces:

nfvis# show switch interface inline-status 
PORT  ADMIN  OPER       POWER  CLASS  DEVICE  PRIORITY  
--------------------------------------------------------
1/0   auto   Searching  0.0    0      None    low       
1/1   auto   Searching  0.0    0      None    low       
1/2   auto   Searching  0.0    0      None    low       
1/3   auto   Searching  0.0    0      None    low       
1/4   auto   Searching  0.0    0      None    low       
1/5   auto   On         6.5    4      None    low       
1/6   auto   Searching  0.0    0      None    low       
1/7   auto   Searching  0.0    0      None    low