Table 8: Front Panel LEDs
Type/Label
Color/State
Meaning
MGMT
Steady green
Power-on self test (POST) completed successfully; normal
operation
Blinking green
POST is in progress
Amber
POST failed, or the system has overheated
Off
No external power attached
FAN
Steady green
Normal operation
Blinking amber
Failure
Off
No power
PSU-1, PSU-2
Steady green
Normal operation
Steady amber
Power is attached, but no power is on
Blinking amber
Failure
Off
No power is attached
Slot-A, Slot-B
Steady green
Port option card is installed in the indicated slot at the back of
the router
Off
No port option card is installed in the indicated slot at the back
of the router
Table 9: 2-digit Stack Number Indicator
Type/Label
Color/State
Meaning
Left digit (1)
NA
Reserved for future use
Right digit (1 – 8)
Indicates the position of
this router in a stacked
configuration.
Upper half blinking
This router is the stack master node
Lower half blinking
This router is the stack backup node
Lit steadily
This router is a standby node in the stack
Ethernet Ports 1 – 28
Steady green
Link OK
Blinking green
Activity
Off
No link, or port is disabled
Management Port
Steady green
Link OK
Blinking green
Activity
Off
No link, or port is disabled
Table 10: Back Panel
Type/Label
Color/State
Meaning
Port LED on installed
XGM3S-2sf option card
Steady green
Link OK
Blinking green
Activity
Off
No link, or port is disabled
Extreme Networks E4G Series Routers
E4G Routers Hardware Installation Guide
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