3Com 3032 Configuration Manual page 152

148 C 10: C
HAPTER ONFIGURING
WAN I
NTERFACE
If framing has been enabled on an E1 channel, you can set its frame format.
Perform the following configuration in CE3 interface view.
Table 170 Set E1 frame format
Operation
Set E1 frame format
Restore the default CRC setting
By default, the frame format of E1 channel is no-crc4.
6 Configure Operating Mode of CE3 Interface
When setting the operating mode of an CE3 interface, you should set the
operating modes of both the CE3 interface and the E1 channels on the interface.
Perform the following configuration in CE3 interface view.
Table 171 Set the operating mode of CE3 interface
Operation
Enable E3 mode
Enable CE3 mode
Restore the default operating mode
By default, CE3 mode is used.
When CE3 interface works in E3 mode, the system will automatically create a
serial interface whose number is serial number/0:0 and whose rate is 34.368
Mbps. The interface has the same logic feature as that of a synchronous serial
interface, therefore, it can be regarded as a synchronous serial interface for further
configuration.
Table 172 Set the operating mode of E1 channel
Operation
Configure E1 channels of CE3 interface to
work in E1 mode (unframed mode)
Configure E1 channels of CE3 interface to
work in CE1 mode (framed mode)
Implement time slot binding on the CE1
interface
Disable time slot binding on the CE1 interface undo e1 line-number channel-set
The operation mode of E1 channels defaults to CE1 mode.
When E1 channel works in E1 mode (unframed mode), the system will
automatically create a serial interface whose number is serial number /
line-number:0 and whose rate is 2048 kbps. The interface has the same logic
feature as that of a synchronous serial interface, therefore, it can be regarded as a
synchronous serial interface for further configuration.
When E1 channel works in CE1 mode (framed mode), timeslot binding can be
performed on it. The system will automatically create a serial interface whose
number is serial number / line-number:set-number and whose rate is N x 64 kbps.
The interface has the same logic feature as that of a synchronous serial interface,
therefore, it can be regarded as a synchronous serial interface for further
configuration.
Command
e1 line-number set frame-format {
crc4 | no-crc4 }
undo e1 line-number set
frame-format
Command
using e3
using ce3
undo using
Command
e1 line-number unframed
undo e1 line-number unframed
e1 line-number channel-set
set-number timeslot-list range
set-number