Access Port and Uplink Port LEDs on a QFX3500 Device

 

Each access port and uplink port on a QFX3500 device has two LEDs. The two figures in this topic show the location of those LEDs:

  • Figure 1 shows the location of the LEDs on the SFP+ access ports.

  • Figure 2 shows the location of the LEDs on the QSFP+ uplink ports.

Figure 1: LEDs on the SFP+ Access Ports
LEDs on the SFP+
Access Ports

The LEDs labeled Link/Activity LED in Figure 1 and Figure 2 indicate link activity or faults. The LEDs labeled Status LED in Figure 1 and Figure 2 indicate link status.

Tip

By default, all access ports are configured as Ethernet interfaces. If you insert a Fibre Channel transceiver, the LEDs do not light until you configure the port as a Fibre Channel interface in Junos OS. Likewise, the LEDs do not light if you insert an Ethernet transceiver in a port configured as a Fibre Channel interface.

Table 1 describes the SFP+ access port LEDs.

Table 1: Network Port LEDs on SFP+ Access Ports on a QFX3500 Device

LED

Color

State

Description

Link/Activity

Unlit

Off

No link is established, there is a fault, or the link is down.

Green

On steadily

A link is established, but there is no link activity.

Blinking

A link is established, and there is link activity.

Status

Unlit

Off

No transceiver is installed in the port, the port is configured for a different interface, or the transceiver is not supported.

Green

On steadily

An Ethernet transceiver is installed in the port.

Amber

On steadily

A Fibre Channel transceiver is installed in the port.

Table 2 describes the QSFP+ uplink port LEDs.

LED

Color

State

Description

Link/Activity

Unlit

Off

No link is established, there is a fault, or the link is down.

Note: The LED remains unlit only if all four of the 10-Gigabit Ethernet SFP+ breakout links are down.

Green

On steadily

A link is established, but there is no link activity.

Note: The LED is lit green when at least one of the four 10-Gigabit Ethernet SFP+ breakout links is established.

Blinking

A link is established, and there is link activity.

Note: The LED is lit green when at least one of the four 10-Gigabit Ethernet SFP+ breakout links is established.

Status

Unlit

Off

No transceiver is installed in the port, or the transceiver is not supported.

Green

On steadily

A transceiver is installed in the port.