Differentiate indicator lights in Cisco Switch

As an employee of a company with Cisco's large, multi-switch network, every time I see the Switch's flashing lights like a music player's light, they look attractive and attractive, but whether Do you know what message they convey?

Differentiate indicator lights in Cisco Switch Picture 1

So what exactly are these lights for, what does the principle work, and how does it work?This article will answer questions for you.

Like other electronic devices, the Switch also has indicator lights so that users can know its status.The switch consists of 4 lights in the front:

1. System light - System Led
2. Remote power supply light - Remote Power Supply Led (RPS)
3. Signal light mode - Port Mode Led
4. Port status lights - Port status Led

System light - System Led

The system light informs whether the system is powered and is functioning properly.Each time the power cord is plugged in, the Switch will start the hardware testing process.During this process, the system light will not light up.Then, if the test is successful, the light will indicate green.Conversely, when there is an error the lamp will be orange.Unfortunately, when the lights are orange, this means you have to take the device for warranty.

External light source - RPS

External power lights indicate whether the switch is powered from outside or not.This light is only lit when the switch is powered from outside.

Signal mode light and port status light

Signal mode indicator light has 4 modes (STAT, UTL, FDUP, SPEED), you can select modes by clicking on the "Mode" key, described in the following figure:

Differentiate indicator lights in Cisco Switch Picture 2  

For each signaling mode, the display role of the port status lights will correspond according to the following table: