Table 7: Chassis Status LEDs in an EX4200 Switch (continued)
State and DescriptionColorLED Label
In a standalone EX4200 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 master in the Virtual Chassis
configuration.
•
Blinking—The switch is the backup in the Virtual Chassis
configuration.
•
Off—The switch is a linecard member in the Virtual Chassis
configuration or is halted.
GreenMST (Master)
A major alarm (red) indicates a critical error condition that requires immediate action.
A minor alarm (amber) indicates a noncritical condition that requires monitoring or
maintenance. A minor alarm that is left unchecked might cause interruption in service or
performance degradation.
NOTE: The amber glow of the AlarmLED that indicates a minor alarmclosely
resembles the red glow that indicates a major alarm.
All three LEDs can be lit simultaneously.
Related
Documentation
show chassis lcd•
• Front Panel of an EX4200 Switch on page 11
• Checking Active Alarms with the J-Web Interface on page 256
• Understanding Alarm Types and Severity Levels on EX Series Switches on page 255
Management Port LEDs in EX4200 Switches
The management port on EX4200 switches has two LEDs that indicate link/activity and
port status (see Figure 10 on page 24). The management port is set to full-duplex and
the speed is set to 100 Mbps.
23Copyright © 2015, Juniper Networks, Inc.
Chapter 2: Chassis Components and Descriptions
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