HP 1820, Руководство по управлению и настройке

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1-6
Getting Started
Getting Started With the Web Interface
■
The maximum transmission unit (MTU), which is the largest packet size that can be transmitted on the
port.
You can left-click a port to display the Port Status page.
System LEDs
The following System LEDs reflect the status of the actual LEDs on the switch:
■
Power (Green)
•
On— The switch is receiving power.
• Blinking
—
The switch is receiving power through its Power Over Ethernet (PoE) port.
• Off
—
The switch is NOT receiving power.
■
Fault/Locator (Orange)
•
Blinking rapidly
—
A fault has occurred, other than during self-test.
• Blinking slowly
—
The locator function has been enabled to help physically locate the switch.
• On
—
If continuously on, no firmware was detected upon boot-up.
• Off
—
The locator function is disabled and the switch is operating properly.
Port LEDs
Each 10/100/1000 Mbps RJ45 port has two single-color LEDs that reflect the status of the actual LEDs on the
switch. The upper LED indicates the link/activity status and the lower LED indicates the mode (speed).
The Link/Act LED status can be one of the following:
■
On
—
A self-test is being performed on the port.
■
Blinking
—
The port has network activity.
■
Off
—
The port has no active network cable connected, is not receiving link signal, or is disabled.
The function of the Mode LED changes depending on whether the switch supports Power-Over-Ethernet:
■
When the switch supports PoE, the Mode LED indicates PoE status for port:
•
On
—
PoE mode is enabled on the port.
• Blinking
—
The PoE port failed or is not currently providing power because it has temporarily exceeded
its allocated power limit.
• Off
—
PoE mode is disabled on the port.
■
When the switch does not support PoE, the Mode LED indicates port speed:
•
On
—
The port is operating continuously at 1000 Mbps.
• Blinking
—
The port is operating at 100 Mbps.
• Off
—
The port is operating at 10 Mbps.