Command Reference Guide

3Com Router 5000 Family and Router 6000 Family idle-mark ● 113
Command Reference
idle-mark
Purpose Use the idle-mark command to configure the idle coding scheme of the
synchronous serial port.
Use the undo idle-mark command to restore the default idle coding scheme of
the synchronous serial port.
Syntax idle-mark
undo idle-mark
Parameters None
Default By default, the synchronous serial port adopts the “7E” coding scheme.
Example Configure the idle coding scheme of the synchronous serial port on the Serial1/0/0 as
idle-mark.
[3Com -Serial1/0/0] idle-mark
View This command can be used in the following views:
■ Synchronous Serial Interface view
Description 3Com series routers encapsulate “7E” in the packets to identify the free time of the
SDLC serial interface, but some SDLC devices adopt full “1” high level instead. In
order to be better compatible to this kind devices, the idle coding scheme of the
router needs to be changed.
Sometimes when connecting with the AS/400, this command needs to be configured
to change the idle coding scheme and accelerate the AS/400 polling speed.