3Com 3C16980A SuperStack3300 Manuale di riferimento rapido - Pagina 2
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LEDs
LED
Color
Indicates
Port Status LEDs
Packet
Yellow
Packets are being transmitted/received on the
port.
Off
No packets are being transmitted/received on
the port.
Status
Green
A link is present, and the port is enabled.
Green
A link is present, but the port is disabled.
flashing
Off
No link is present.
Expansion Module Port Status LEDs
Packet
Yellow
Packets are being transmitted/received on the
Expansion Module port(s).
Off
No packets are being transmitted/received on
the Expansion Module port(s).
Status
Yellow
A valid Expansion Module is installed.
Yellow
An unrecognized Expansion Module is
flashing
installed.
Off
No Expansion Module is installed.
Unit LEDs
18
Green
The Switch forms a stack with other Switch
units; the LED indicates the position of the
Switch in the stack and that a link is present.
Note that although there are eight LEDs, only
four Switch units can be stacked at present.
Off
The Switch is stand-alone.
LED
Color
Indicates
Power/Self Test LED
Green
The Switch is powered-up.
LED
Color
Indicates
Green
The Switch is either downloading software or
flashing
is initializing (which includes running a Power
On Self Test).
Yellow
The Switch has failed its Power On Self T est.
Off
The Switch is not receiving power.
Default Settings
Port Status
Enabled
Port Speed
10BASE-T/100BASE-TX ports are
auto-negotiated
Duplex Mode
All fixed ports are auto-negotiated
Flow Control
Enabled in half duplex,
auto-negotiated in full duplex
Security
Disabled
Broadcast Storm Control
Enabled
Spanning Tree (STP)
Disabled
Default Passwords
Monitor access level
User Name: monitor
Password: monitor
Manager access level
User Name: manager
Password: manager
Security access level
User Name: admin
Password: (no password)
or
User Name: security
Password: security