Network Port LEDs on QFX5120 Switches

Network Port LEDs on QFX5120-32C Switches

Each SFP+ port on QFX5120-32C switches has one LED that shows the link activity of the port (see Figure 1). See Table 1 to learn more about that LED.

Each QSFP28 port on QFX5120-32C switches has four LEDs that show the link activity of the port (see Figure 2). The first LED operates when the port is not channelized; the other three LEDs operate when the port is channelized. See Table 2 to learn more about those LEDs.

Table 1: LED on the SFP+ Ports on QFX5120-32C Switches

Color	State and Description
Green	On steadily—The port and the link are active, but there is no link activity.
Green	Blinking—The port and the link are active and there is link activity.
Unlit	The port is not active.

Table 2: LEDs on the QSFP28 Ports on QFX5120-32C Switches

Position	Color	State	Description
1	Green	On steadily	The port is not channelized, a 100 -Gbps or 40 -Gbps link is established, but there is no link activity. When this LED is on, the LEDs in positions 2 through 4 are off.
1	Green	Blinking	The port is not channelized, a 100 -Gbps or 40 -Gbps link is established, and there is link activity.
2–4	Green	On steadily	The port is channelized, a 25-Gbps or 10-Gbps link is established, but there is no link activity.
2–4	Green	Blinking	The port is not channelized, a 25-Gbps or 10-Gbps link is established, and there is link activity.
1–4	Unlit	Unlit	The port is administratively disabled, there is no power, the link is down, or there is a fault.

Network Port LEDs on QFX5120-48T Switches

Each BASE-T port on QFX5120-48T switches has one LED that indicates the status of the port (see Figure 3). See Table 3 to learn more about that LED.

Each QSFP28 port on QFX5120-48T switches has one LED that indicates the status of the port (see Figure 4). See Table 4 to learn more about that LED.

LEDs on the 10-GbE BASE-T
Ports on QFX5120-48T Switches

Table 3: LEDs on the BASE-T Ports on QFX5120-48T Switches

Color	State and Description
Green	On steadily—The port is operating at 10-Gbps speed, but there is no link activity.
Green	Blinking—The port is operating at 10-Gbps speed and there is link activity.
Yellow	On steadily—The port is operating at 1-Gbps speed, but there is no link activity.
	Blinking—The port is operating at 1-Gbps speed and there is link activity.
	Blipping—The beacon function is enabled on the port.
Unlit	The port is administratively disabled, there is no power, the link is down, or there is a fault.

Table 4: LED on the QSFP28 Ports on QFX5120-48T Switches

Color	State and Description
Green	When the port is not channelized and is configured to operate as one 100GbE or 40GbE interface: On steadily—The port is operational, but there is no link activity. Blinking—The port is operational and there is link activity.
	When the port is channelized and is configured to operate as two 50GbE interfaces: On steadily—The port is operational, both the interfaces are operational, but there is no link activity. Blinking—The port is operational and there is link activity on at least one of the interfaces.
	When the ports `50` and `51` are channelized and are configured to operate as four 25GbE or 10GbE interfaces: On steadily—All four breakout links are established, but there is no link activity on any of the channelized interfaces. Blinking—All four breakout links are established and there is link activity on at least one of the channelized interfaces.
Amber	When the port is channelized and is configured to operate as two 50GbE interfaces: On steadily—One or more breakout link is established, but there is no link activity on any of the channelized interfaces. Blinking—One or more breakout link is established and there is link activity on at least one of the channelized interfaces. Blipping—The beacon function is enabled on the port.
Amber	When the ports `50` and `51` are channelized and are configured to operate as four 25GbE or 10GbE interfaces: On steadily—One or more breakout link is established, but there is no link activity on any of the channelized interfaces. Blinking—One or more breakout link is established and there is link activity on at least one of the channelized interfaces. Blipping—The beacon function is enabled on the port.
Unlit	The port is administratively disabled, there is no power, the link is down, or there is a fault.

Network Port LEDs on QFX5120-48Y Switches

Each SFP28 port on QFX5120-48Y switches has two LEDs that show the link activity and status of the port (see Figure 5). See Table 5 to learn more about those LEDs.

Each QSFP28 port on QFX5120-48Y switches has four LEDs that show the link activity of the port (see Figure 6). The first LED operates when the port is not channelized; the other three LEDs operate when the port is channelized. See Table 6 to learn more about those LEDs.

Table 5: LEDs on the SFP28 Ports on QFX5120-48Y Switches

LED	Color	State and Description
Link activity	Green	On steadily—The port and the link are active, but there is no link activity.
	Green	Blinking—The port and the link are active and there is link activity.
	Unlit	The port is not active.
Status	Green	On steadily—The port is operating at 25-Gbps speed.
Status	Green	Blinking—The port is operating at 1-Gbps or 10-Gbps speed.

Table 6: LEDs on the QSFP28 Ports on QFX5120-48Y Switches

Position	Color	State	Description
1	Green	On steadily	The port is not channelized, a 100 Gbps or 40 Gbps link is established, but there is no link activity. When this LED is on, the LEDs in positions 2 through 4 are off.
1	Green	Blinking	The port is not channelized, a 100 Gbps or 40 Gbps link is established, and there is link activity.
2–4	Green	On steadily	The port is channelized, a 25-Gbps or 10-Gbps link is established, but there is no link activity.
2–4	Green	Blinking	The port is not channelized, a 25-Gbps or 10-Gbps link is established, and there is link activity.
All	Amber	Blinking	The beacon function is enabled on the port.
1–4	Unlit	Unlit	The port is administratively disabled, there is no power, the link is down, or there is a fault.

Network Port LEDs on QFX5120-48YM Switches

Each SFP28 port on QFX5120-48YM switches has one LED that shows the link activity and status of the port (see Figure 7). See Table 7 to learn more about that LED.

Each QSFP28 port on QFX5120-48YM switches has one LED that shows the link activity and status of the port (see Figure 8). See Table 8 to learn more about those LEDs.

Table 7: LED on the SFP28 Ports on QFX5120-48YM Switches

Color	State and Description
Green	On steadily—A link is established, but there is no link activity.
Green	Blinking—A link is established and there is link activity.
Yellow	Blinking—The beacon function is enabled on the port.
Unlit	The port is administratively disabled, there is no power, the link is down, or there is a fault.

Table 8: LED on the QSFP28 Ports on QFX5120-48YM Switches

Color	State	Description
Green	On steadily	A link is established, but there is no link activity.
Green	Blinking	A link is established and there is link activity.
Yellow	Blinking	The beacon function is enabled on the port.
Unlit	Unlit	The port is administratively disabled, there is no power, the link is down, or there is a fault.

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Network Port LEDs on QFX5120 Switches

Network Port LEDs on QFX5120-32C Switches

Network Port LEDs on QFX5120-48T Switches

Network Port LEDs on QFX5120-48Y Switches

Network Port LEDs on QFX5120-48YM Switches