Cisco Switch Status Lights detailed

The front panel of the switch has several LEDs to monitor the system's activity and performance. These LEDs are called light-emitting diodes (LEDs). The LEDs on the front panel include:

• System LEDs

• Remote power supply LEDs

• Port Mode LEDs

• Port Status Indicator

First, the system led

Displays whether the system is plugged in and working properly.

LED Color System State

Shutdown system not powered up

Green system running normally

Amber system power up but not functioning

Second, remote power supply (RPS) LED

The LEDs indicate whether the switch has a remote power supply. The RPS LEDs indicate the RPS state of the switch.

LED Color RPS Status

Close RPS closed or not installed

Persistent green RPS is connected and available

Blinking Green RPS is supporting another switch in the stack (stack)

Persistent Amber RPS connected but not acting properly

Flashing amber switch internal power failure, using RPS

Third, port mode indicator (this is the point)

The port mode LEDs display the current state of the mode button. Various modes are used to determine how the port status LEDs are interpreted. If you want to select or modify the port mode, press the mode button continuously until the mode LEDs indicate the desired pattern. The port status LED can represent a variety of meanings, depending on the current value of the mode LEDs.

There are three states of the mode button:

· STAT (State, States)

· UTL (utilization, utilization)

· Fdup (Full-duplex, full duplex)

More Wonderful content: http://www.bianceng.cnhttp://www.bianceng.cn/Network/jhjs/

If the switch's status lamp is blinking orange, it is generally indicated on a certain port. The module or switch has a hardware failure. If the port or module state is not normal, the status light is also blinking orange.

Four, port status indicator

To select or change the port mode, use the Press mode button until the desired mode is selected.

Pattern LED Color Description

STAT

Port status shutdown off link free

Continuous green Link normal operation

Flashing green send or receive data

Green/amber alternating link in forwarding state

Persistent Amber Port is currently forwarding

UTIL

Switch utilization green back-sheet utilization ratio between

Maximum Amber Backplane Utilization

Green and amber switches the current bandwidth usage reaches 50% or more of the total bandwidth as the bandwidth uses the Green drop part of the LED into the amber color.

DUPLX off Half Duplex

Port Duplex Mode Green Full Duplex

SPEED

Port speed shutdown port running in 10mbit/s

Green 100mbit/s

Last part

Check the port LEDs during the switch post section.

After the power is connected, the switch initiates a series of tests called the Power self-test to detect if the switch is working properly.

The system indicator shows whether the post was successful or not. If the switch is already in power, the system LED is off and the post is in progress.

If the light is green, post success!

If the amber description fails the post!

Post is a fatal error!post have failed the switch is still working!

The port status LEDs also change during post. When the switch discovers the network topology and searches the loop, the port status indicator turns amber and lasts 30 seconds! If the port status led changes to green indicates that one of the switch ports has been successfully connected to the target! Target, like a computer!

If the port LEDs are not illuminated the switch determines that the device is not connected to the port!