A-4
Cisco ASR 901 Series Aggregation Services Router Hardware Installation Guide
OL-23778-01
Appendix A Troubleshooting
Reading the LEDs
Reading the LEDs
The following sections describe the LEDs on the Cisco ASR 901 router.
•
Chassis LEDs
•
T1/E1 Interface LEDs
Chassis LEDs
Table A-4
summarizes the LEDs on the chassis of the Cisco ASR 901 router. These LEDs are common
to all versions of the Cisco ASR 901 router.
Table A-4
LED Summary
Copper GE ports (from GE/FE Quad PHY) contain will have Two LEDS each
RJ-45 Link
L
Solid Green
PHY
Link with no activity
FLASH Green
Link with activity
Off
No link
RJ-45 Speed
S
Green
PHY
Speed 1000
Off
off
T1/E1 ports contain Two LEDs each
Alarm
AL
Off
WP2
Not configured
Yellow
Alarm Condition
Active
C
Off
WP2
Out of Service / Not configured
Green
Carrier Condition (all-ok)
Copper GE (from Quad combo PHY) ports contain Two LEDS each.
RJ-45 Link
L
Solid Green
PHY
Link with no activity
FLASH Green
Link with activity
Off
No link
RJ-45 Speed
S
Green
PHY
Speed 1000
Off
off
System LED
System
Off
HP
No power or unit not boot-up
Alternating
Green/Off
POST in progress
Solid Green
System Healthy (normal
operation)
Solid Red
System Faulty
SFP LED
SFP Link-Active
L-A
Orange
HP
Link and Active Indicator
Off
Not Enabled