Netgear M4200-10MG-PoE+ (GSM4210P) - Multigigabit Managed Switch with 8*2.5G and 2x10G SFP+ Layer 3 소프트웨어 가이드
Power over Ethernet Commands
1064
M4200 and M4300 Series ProSAFE Managed Switches
About PoE
Power over Ethernet (PoE) describes a technology to pass electrical power safely along with
data on existing Ethernet cabling. The power supply equipment (PSE) is the device or switch
that delivers electrical power, and the PD or powered device is the end device that powers up
through the power delivered along the Ethernet cable.
data on existing Ethernet cabling. The power supply equipment (PSE) is the device or switch
that delivers electrical power, and the PD or powered device is the end device that powers up
through the power delivered along the Ethernet cable.
The switch supports PoE and PoE+ as follows:
•
PoE (802.3af 2003). This is the original standard, also known as the low-power standard,
which mandates delivery of up to 15.4 watts by the PSE. Because of power dissipation,
only 12.95 watts are assured to be available at the powered device (PD). The PD needs
to be designed so that it can accept power over Ethernet cabling. Category 3 cables can
be used to deliver power to the PD. However, with the advent of 802.11n, the newer
wireless APs required more power. To account for this, a newer standard was developed
in 2009, known as 802.3at.
which mandates delivery of up to 15.4 watts by the PSE. Because of power dissipation,
only 12.95 watts are assured to be available at the powered device (PD). The PD needs
to be designed so that it can accept power over Ethernet cabling. Category 3 cables can
be used to deliver power to the PD. However, with the advent of 802.11n, the newer
wireless APs required more power. To account for this, a newer standard was developed
in 2009, known as 802.3at.
•
PoE+ (802.3at-2009). This is a newer standard than PoE. This is also known as the
high-power standard, which mandates delivery of up to 34.2 watts by the PSE. Because
of power dissipation, PoE+ provides only a maximum of 25.5 watts at the powered
device. Some PSEs can provide up to 51 watts. Before this standard became available in
2009, the industry started using different implementations to allow for more power. All
these needed to be brought under the purview of the newer 802.3at standard.
high-power standard, which mandates delivery of up to 34.2 watts by the PSE. Because
of power dissipation, PoE+ provides only a maximum of 25.5 watts at the powered
device. Some PSEs can provide up to 51 watts. Before this standard became available in
2009, the industry started using different implementations to allow for more power. All
these needed to be brought under the purview of the newer 802.3at standard.
Note:
PoE and PoE+ are supported only on physical, copper interfaces. The
default port mode is PoE+.
default port mode is PoE+.
PoE Commands
poe
Use this command to enable the Power over Ethernet (PoE) functionality on a global basis or
per interface.
per interface.
Default
enabled
Format
poe
Mode
Global Config
Interface Config