Status Leds Of A Fabric; Status Leds Of A Fabric In A Passport 15000 - Nortel Passport 15000 Hardware Description

352 Chapter 7 Using status indicator LEDs and sounds

Status LEDs of a fabric

Status LEDs of a fabric in a Passport 15000

241-1501-200 5.2S2
Each fabric card at the rear of a switch has LEDs to indicate the status of
operation. There are two LEDs on each fabric, a red and a green. Only one
LED is lit to indicate the status of the fabric when the switch hardware is
powered up.
Fabric LEDs are described in:
• "Status LEDs of a fabric in a Passport 15000" (page 352)
• "Status LEDs of a fabric in a Passport 20000" (page 354)
For normal operation, the circular LED is solid green. See the figure
"Location of fabric status LEDs in a Passport 15000" (page 353).
In a startup mode after installation and powering up, the LEDs cycle from
solid red to solid green. (There is no amber status.) Both LEDs must be solid
green for normal operation to occur.
When a fabric is disabled by the system because of faults, the LED turns red.
A red LED can be caused by more than disabling, which means a fabric with
a red LED can still be transmitting data. Similarly, a fabric with a green LED
might be prevented from transmitting data.
When a fabric is locked by force in software, it shows solid green (unlike a
CP or an FP).
After normal operation when the LED is not green, do "What to do when a lit
red LED is detected" (page 344).