254 CHAPTER 16: FUNDAMENTAL CE3 INTERFACE CONFIGURATION COMMANDS
Example # Perform BERT test in QRSS mode on CE3 2/0 interface, setting the duration to
ten minutes.
<Sysname> system-view
[Sysname] interface E3 2/0
[Sysname-E3 2/0] bert pattern qrss time 10
clock (CE3 interface view)
Syntax clock { master | slave }
undo clock
View CE3 interface view
Parameter master: Adopts the internal clock as the clock source.
slave: Adopts the line clock as the clock source.
Description Use the
clock command to configure clock source for the CE3 interface.
Use the
undo clock command to restore the default, that is, line clock.
The clock source is selected depending on the connected remote device. If
connected to a transmission device, the local end uses the line clock. If connected
to a CE3 interface on another router, the local end can use whichever clock so
long as it is different from the one adopted at the remote end.
Example # Use the internal clock as the clock source on CE3 interface E3 2/0.
<Sysname> system-view
[Sysname] controller e3 2/0
[Sysname-E3 2/0] clock master
controller e3
Syntax controller e3 interface-number
View System view
Parameter interface-number: CE3 interface number.
Description Use the
controller e3 command to enter CE3 interface view.
Related command: display controller e3.
Example # Enter the view of interface E3 2/0.
