Juniper Networks ERX-1410 - Manual (Page 113)

Understanding Status LEDs
ERX Edge Routers
8-7
Figure 8-2 FE2 module LEDs
Figure 8-3 E3 and T3 module LEDs
LED Activity During Booting
When the system boots, it runs diagnostic tests, and the module status
LEDs display various configurations. Observe the scenario presented in
Table 8-3 to verify that the system has booted properly.
Note: When you reboot the system after installing a new version of the software,
the line modules will appear to boot twice.
Functional
status LEDs
Interface
status LEDs
FAIL
ONLINE
REDUNDANT
OK
SYNC
RED ALM
0
1
2
YEL ALM
LINK
ACTIVITY
FAIL
ONLINE
REDUNDANT
OK
SYNC
RED ALM
0
1
2
YEL ALM
Functional
status LEDs
Interface
status LEDs