3Com CoreBuilder 9000, User Manual

Page: 117 / 468

Setting Up the Switch Clock Source 117
Setting Up the
Switch Clock Source
Using this option, you can set up all the parameters to configure and
synchronize the data speed clocks on different ports of the CoreBuilder
9000 ATM Enterprise Switch to an external clock source.
Get Clock Source Status
Set External Clock Source 1
Set External Clock Source 2
Set Clock Source to Internal
Get Clock Source
Status
Display the active clock status and the current status of the ports defined
as the active and standby clock ports.
The active clock source may be Internal or External. If the active clock
source is External, one of the source ports must be active and the other
source port may be None, Standby or Failed (not connected). If the active
clock source is Internal, that is, no source port has been defined as the
active clock port, the source ports are both set to None.
Command Actions
Command Result
Enter menu sequence:
(1) SYS: Platform Configuration
(8) SCS: Switch Clock Synchronization
Setup
(1) GET: Get Clock Source Status
Direct access sequence:
1 8 1
System action: The current active clock source and current external
clock port statuses are displayed.
System message display:
Information is displayed as shown in the example.