3Com Router 3031, Command Reference Manual

Page: 188 / 838

188 C
HAPTER
3: I
NTERFACE
M
ANAGEMENT
C
OMMANDS
Fundamental CE3
Interface
Configuration
Commands
clock Syntax
clock { master | slave }
undo clock
View
CE3 interface view
Parameter
master: Adopts the internal clock mode.
slave: Adopts the line clock mode.
Description
Using the clock command, you can set the clock mode on a CE3 interface. Using
the undo clock command, you can restore the default clock mode on the
interface.
By default, the CE3 interface adopts the line clock mode (slave).
The clock is selected depending on the connected remote device. If it is a
transmission device, the local end will use the line clock.
If the CE3 interfaces on the two routers are directly connected, one router should
use the internal clock whereas the other router uses the line clock.
Example
Configure the CE3 interface with internal clock.
[3com-E3 1/0/0] clock master
controller e3 Syntax
controller e3 interface-number
View
System view
Parameter
interface-number: CE3 interface number.