each device and power levels of 0, 1, 2 and 3.
IEEE 802.3at: IEEE 802.3af: Compatible with IEEE 802.3af, the IEEE 802.3at PoE
standard provides up to 30W of power to each device and power levels of 0, 1, 2, 3 and 4.
This field is available only if dynamic allocation is selected. Options available include
High, Medium and Low.
If the power supply is running at 99% usage, ports prioritized as high are prioritized to
receive power over ports prioritized as medium and/or low. For example: If the power
supply is running at 99% usage and port A prioritized as high connects a new PD, power
supply to the PD connected to the port prioritized as low will be disconnected to ensure
port A power; or in case of same port priorities, power supply to the PD connected to the
port with a large logic port number will be disconnected.
This field is available for configuration if Static Allocation is selected from the power
management mode drop-down list.
IEEE 802.3af: Enter a valid power value between 0-15.4w. If you enter a power value that
is greater than 15.4w, 15.4w will be applied automatically.
IEEE 802.3at: Enter a valid power value between 0-30w If you enter a power value that is
greater than 30, 30w will be applied automatically.
Display actual output PoE power supplied by the port. This is associated to the power
consumed by the PD connected to the port.
Classification of PDs connected to the switch.
IEEE 802.3af compliant PDs are classified into classes of 0, 1, 2 and 3.
IEEE 802.3at compliant PDs are classified into classes of 0, 1, 2, 3 and 4.
Note:
1. You must click OK to bring your configurations into effect each time you configure a port.
2. You can view your configurations on this page.
3.5 Device Management
3.5.1 VLAN
1. VLAN Overview
A Virtual Local Area Network (VLAN) is a network topology which allows to logically instead of physically
segment a LAN into several net segments. A VLAN combines a group of hosts with a common set of requirements
logically instead of physically relocating devices or connections. In 1999, IEEE released 802.1Q draft as a
standardized VLAN implementation solution.
VLANs allow a network to be logically segmented into different broadcast domains. All members in a VLAN are
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