•Connectingand Configuring an EX Series Switch (CLI Procedure)on page 190
•Connectingand Configuring an EX Series Switch (J-WebProcedure) on page 192
ChassisStatus LEDs in an EX8200 Switch
Thetop front of the chassis of an EX8200 switch has three LEDs on the right side of the
LCDpanel.
SeeFigure 6 on page 22.

Figure6: Chassis Status LEDs

Table8 on page22 describes the chassis status LEDs in an EX8200 switch, their colors
andstates, and the status they indicate.You can view the colors of the threeLEDs
remotelythrough the CLI by issuing the operational mode commandshow chassis lcd.

Table8: Chassis Status LEDs in an EX8200 Switch

Stateand DescriptionColorLEDLabel (Description)
Noalarm.UnlitALM(Alarm)
Majoralarm.Red
Minoralarm.Yellow
Switchis powered off.UnlitSYS(System)
Oneor more component failures are generatingone or more
alarms.
Yellow
Switchis operating normally.Green
Switchis powered off.UnlitMST(Master)
MasterRouting Engine is operational.Green
Amajor alarm (red) indicates a critical error condition thatrequires immediate action.
Aminor alarm (yellow) indicatesa noncritical condition that requires monitoring or
maintenance.A minor alarm that is left uncheckedmight cause interruption in service or
performancedegradation.
Allthree LEDs can be lit simultaneously.
Copyright© 2010, Juniper Networks,Inc.22
CompleteHardwareGuide for EX8208 Ethernet Switches