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LED responses at startup

Network connection LEDs

About this section  Top

This section describes the LED responses for the network connections supported by the C3100/C6100. For each of the following types of network connections, the location of the LEDs is identified and the LED functionality is described:

Onboard 10Base-T/100Base-TX Ethernet port  Top

Location of LEDs

The onboard 10Base-T/100Base-TX Ethernet port has two LEDs, as shown in the following illustration.

Description of LEDs

The following table describes the LEDs for the onboard 10Base-T/100Base-TX Ethernet port.

LEDs

State of illumination

Explanation . . .

Green

On

Valid network connection.

Off

No Ethernet connection is present.

Amber

On

Transmitting and receiving data.

Off

Idle.

Single-port 10Base-T/100Base-TX NIC LEDs  Top

Location of LEDs

The following illustration shows the one port with two LEDs on the single-port 10Base-T/100Base-TX Ethernet NIC.

Description of LEDs

The following table describes the LEDs on the single-port 10Base-T/100Base-TX Ethernet NIC.

LEDs

State of illumination

Explanation . . .

ACT/LNK

On

Valid network connection.

Off

One of three scenarios:

  • Idle
  • There is no power
  • Faulty cable connection

Flashing

Transmitting and receiving data.

100TX

On

Operating at 100 Mbps.

Off

Operating at 10 Mbps.

Quad-port 10Base-T/100Base-TX NIC  Top

Location of LEDs

The quad-port10Base-T/100Base-TX Ethernet NIC has four ports for four channels, with the top port assigned to the first channel. The following illustration shows each port with corresponding pair of green and red LEDs.

Description of LEDs

The following table describes the function of the LEDs.

LEDs

State of illumination

Explanation . . .

Green

On Solid

Link is up.

On Flashing

Network activity.

Off

Cabling problems.

Red

On

Operating at 100 Mbps.

Off

Operating at 10 Mbps.

GbE NIC  Top

Location of LEDs

The following illustration shows the one port and four LEDs on the GbE NIC.

Note
The C3100/C6100 only uses the RX, TX, and LINK LEDs.

Description of LEDs

The following table describes the LEDs on the GbE NIC.

LEDs

State

Explanation . . .

TX

On

Transmitting data.

Off

Idle.

RX

On

Receiving data.

Off

Idle.

LINK

On

Valid network connection.

Off

One of two scenarios:

  • Configuration is invalid
  • Connections need to be checked

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