Справочник Пользователя для 3com SuperStack II

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PPENDIX

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ROUBLESHOOTING

This section describes the normal operation of the SuperStack II 
bridge/router LEDs.

The following figure describes the system LEDs. 

The following figure describes the serial LEDs.

Lights green when the software has successfully loaded and is running.

Unlit in normal operation. Flashes green during startup to indicate system is loading software. Lights 
amber when there is a load problem.

Unlit in normal operation. Lights amber during startup to indicate system is running self-tests.

Provides additional status for the Run, Load, and Test LEDs.

Lights green when unit has power. Lights amber if there is 
a problem with power. When unlit, power to unit is off.

Flashes green each time a packet is forwarded between 
two ports.

Reserved for future use (model 4xx only).

,,

,,

yy

yy

,

,

y

y

,

,

y

y

Normal operation

Lights green when the path is up.

Lights green when there is a physical connection to a serial 
device such as a CSU/DSU or modem

Unlit in normal operation. Lights amber if an error in the 
frames is detected.

Normal operation

* Model 5xx only