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EX4100 and EX4100-F Chassis

Chassis Status LEDs on EX4100 and EX4100-F Switches

EX4100 and EX4100-F switches have four chassis status LEDs (labeled SYS, ALM, MST, and CLD) on the rightside of the front panel .

Figure 1: Chassis Status LEDs in EX4100 and EX4100-F Switches Chassis Status LEDs in EX4100 and EX4100-F Switches
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Chassis status LEDs
 

Table 1 describes the chassis status LEDs labeled SYS, ALM, and MST on an EX4100 and EX4100-F switch. The table also describes their colors and states and the status each LED indicates. You can view the colors of the LEDs remotely through the CLI by issuing the show chassis led operational mode command. All LEDs can be lit simultaneously.

Table 1: SYS, ALM, and MST Chassis Status LEDs on EX4100 and EX4100-F Switches

LED Label

Color

State and Description

SYS

Green

  • On steadily—Junos OS for EX Series switches is loaded on the switch.

  • Blinking—The switch is booting.

Unlit

The switch is powered off or is halted.

ALM

Red

A major hardware fault—such as a temperature alarm or a power failure alarm—occurred, and the switch is halted.

A major alarm indicates a critical error condition that requires immediate attention (see Chassis Component Alarm Conditions on EX4100 and EX4100-F Switches).

Amber

A minor alarm—such as a software or a hardware error—occurred. Power off the switch and then power it back on. Monitor the switch to see whether it is working properly.

A minor alarm indicates a non-critical condition that requires monitoring or maintenance. A minor alarm that is left unchecked might cause interruption in service or performance degradation.

Unlit

No alarm is in effect, or the switch is halted.

MST

Green

In a standalone switch:

  • On steadily—The switch is functioning normally.

  • Off—The switch is powered off or is halted.

In a Virtual Chassis configuration:

  • On steadily—The switch is the primary switch in the Virtual Chassis configuration.

  • Blinking—The switch is the backup switch in the Virtual Chassis configuration.

  • Off—The switch is a linecard member in the Virtual Chassis configuration, or the switch is halted.

Table 2 describes the cloud LED (labeled CLD) on an EX4100 and EX4100-F switch. The table also describes the colors on the switch and the status that the colors indicate. Cloud LED blinking patterns identify the cloud connection status of the switch. There is a distinct pause between blinking patterns to distinguish them. For example, a green color blink of the cloud LED followed immediately by a yellow color blink, followed by a distinct pause, and then the pattern repeating, signifies that the switch is connecting to the cloud.

Table 2: Cloud LED on EX4100 and EX4100-F Switches

Colors

Status

The switch is connecting to the cloud.

The DHCP server has not allotted an IP address to the switch, or no IP address is configured on the switch.

The DHCP server has not allotted a gateway IP address to the switch, or no gateway IP address is configured on the switch.

The gateway IP address is not reachable.

The switch cannot find a DNS server.

The DNS server does not respond.

The response from the DNS server is blank.

The connection to the phone-home server (PHS) or the network management server is not active or timed out.

The PHS is active, but it does not respond.

The switch is unable to connect to the cloud because it is unable to authenticate the certificate from the cloud.

The switch is unable to connect to the cloud because the cloud authentication certificate is invalid.

The switch information is not added to the PHS.

The switch is unable to fetch the configuration file from the cloud.

The switch is unable to apply the configuration file fetched from the cloud.

The switch is unable to save the boot configuration file.

Junos OS is being upgraded on the switch.

Junos OS is upgraded successfully on the switch.

Upgrade of Junos OS on the switch failed.

Note:

For Virtual Chassis deployments managed from the cloud, the CLD LED on individual Virtual Chassis members will reflect the state of the Master, except when a software download is in progress. When a software download is in progress, the CLD LED on a Virtual Chassis member will display the Junos OS upgrading LED pattern and color.​

LEDs on the Management Port on EX4100 and EX4100-F Switches

The management port, labeled MGMT, on the rear panel of EX4100 and EX4100-F switches has two LEDs that indicate link activity and port status (see Figure 2).

Figure 2: LEDs on the Management Port on EX4100 and EX4100-F Switches LEDs on the Management Port on EX4100 and EX4100-F Switches
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Link activity LED
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Status LED
Figure 3: LEDs on the Management Port on the EX4100-F-12P and EX4100-F-12T Switches LEDs on the Management Port on the EX4100-F-12P and EX4100-F-12T Switches
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Link activity LED
  2
Status LED

Table 3 describes the LEDs.

Table 3: LEDs on the Management Port on EX4100 and EX4100-F Switches

LED

Color

State and Description

Link activity

Green
  • On steadily—The port and the link are active, but no link activity is occurring.

  • Blinking—The port and the link are active, and link activity is occurring.

  • Off—The port is not active.

Status

Green

Indicates the speed:

  • On steadily—Link speed is 1000 Mbps or 100 Mpbs.

  • Off—Link speed is 10 Mbps.