Aminor alarm (amber) indicates a noncritical condition that requires monitoring or
maintenance.A minor alarm that is left unchecked might cause interruptionin service or
performancedegradation.
BothLEDs can be lit simultaneously.
Youcan view the colors of the two LEDs remotelythrough the CLI by issuing the
operationalmode command show chassis led.
Related
Documentation
FrontPanel of an EX2200 Switch on page 5•
•CheckingActive Alarms with the J-Web Interface
•UnderstandingAlarm Types and Severity Levelson EX Series Switches
Network Portand Uplink Port LEDs in EX2200 Switches
Eachnetwork port and uplink port on the front panel of an EX2200 switch has two LEDs
thatindicate link/activityand port status. See Figure 5 on page12 and Figure 6 on page 12.

Figure 5: LEDson the Network Ports on the Front Panel

01234567891011 1213 1415 16 17 18 19 20 21 22 23
g027005
01
Link/Activity LED Status LED

Figure 6:LEDs on the Uplink Ports and Port Status Mode LEDs

g027007
0 1 2
SYS
ALM
SPD
DX
EN
POE
3
Port1 Port2 Port3
Mode
button
Link/Activity
LED
Status
LED
Port0
Portstatus
mode LEDs
Table5 on page 12 describes the Link/ActivityLED.

Table5: Link/ActivityLED on the Network Ports and Uplink Ports in EX2200 Switches

Stateand DescriptionColorLED
•Blinking—Theport and the link are active, and there is link activity.
•Onsteadily—The port and the link are active,but there is no link activity.
•Off—Theport is not active.
GreenLink/Activity
Copyright© 2010, Juniper Networks, Inc.12
CompleteHardware Guide for EX2200 Ethernet Switches