Troubleshooting the T1600 SIBs
Problem
The following alarms and LEDs indicate a problem with a SIB:
- The yellow FAIL LED on the SIB faceplate is lit.
- The green OK LED on the SIB faceplate is not lit.
- A red alarm indicates that the SIB failed or has been removed.
- A yellow alarm indicates that a spare SIB has failed or has been removed.
Solution
To troubleshoot the T1600 SIBs:
- Check the LEDs on the faceplate of each SIB.
- Check the LEDs on the craft interface.
- Use the CLI to check for alarms.
- Standalone T1600 router—Issue the show chassis alarms command to view the alarms.
- T1600 router in a routing matrix—Issue the show chassis alarms lcc lcc-number command to view the alarms.
In Table 1 and Table 2, the text in the column labeled ”LCD Message” appears in the display of the craft interface. The text in the column labeled “CLI Message” appears in the output from the show chassis alarms command.
Table 1: T1600 Chassis Alarm Messages for SIBs
Alarm Type | LCD Display Message | CLI Message |
|---|---|---|
Red | SIB sib-number Failure | SIB sib-number Fault |
SIB sib-number Removed | SIB sib-number Absent | |
Yellow | Spare SIB Failure | Spare SIB Fault |
Spare SIB Removed | Spare SIB Absent | |
Check SIB | Check SIB |
Table 2: Chassis Alarm Messages for a T1600 Router in a Routing Matrix
Alarm Type | Craft Interface LCD Message | CLI Message | Alarm Condition | Solution |
|---|---|---|---|---|
Red | ST_SIB_L sib-number:VCSEL Fault | ST_SIB_L sib-number: SIB VCSEL Fault | Loss of signal (LOS) has occurred in a vertical-cavity surface-emitting laser (VCSEL) in a TXP-T1600 SIB. | Replace the TXP-T1600 SIB on the T1600 router. |
SIB sib-number FPC Links | SIB sib-number FPC Link Error | The TXP-T1600 SIB has detected Link errors on FPC-SIB links. | To isolate the problem:
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