Checklist for Monitoring the SCG
Purpose
You monitor the SONET Clock Generators (SCGs) that provide a clock signal for the SONET/SDH interfaces on the T320, T640, and the T1600 routers. The SCGs select a clock signal from any Flexible PIC Concentrator (FPC). (See Table 1.)
Action
Table 1: Checklist for Monitoring the SCG
Monitor SCG Tasks | Command or Action |
|---|---|
| Monitor the SCG Status | |
show chassis environment show chassis environment scg | |
show chassis craft-interface | |
| Determine SCG Mastership | |
show chassis craft-interface | |
| Display SCG Alarms | |
show chassis alarms | |
show log messages | |
show log chassisd | |
| Verify SCG Failure | |
| |
| |
| Get SCG Hardware Information | |
show chassis hardware | |
Look on the top of the SCG, close to the midplane connector. | |
| Return the SCG | See Return the Failed Component, or follow the procedure in the appropriate router hardware guide. |
