42
Step Command
Remarks
7.
Configure the T1 operating
mode.
•
Specify the unframed mode:
t1
t1-number
unframed
•
Specify the framed mode
and bundle timeslots:
a.
(Optional.)
undo t1
t1-number
unframed
b. t1
t1-number
channel-set
set-number
timeslot-list
range
[
speed
{
56k
|
64k
} ]
By default, a T1 channel operates
in framed mode and is not
channelized.
When you place a T1 channel in
unframed mode, the system
automatically creates a 1.544
Mbps serial interface.
When you bundle timeslots on a
T1 channel, the system
automatically creates a serial
interface for the bundle. The rate
of the serial interface is identical
to timeslot rate (54 kbps or 64
kbps) x number of bundled
timeslots.
8.
(Optional.) Shut down the
specified T1 channel.
t1
t1-number
shutdown
By default, a T1 channel is up.
Configuring the operating mode of a 2.5 Gbps
CPOS interface
A high-speed CPOS interface supports the following operating modes:
•
Channelized
mode
—Demultiplexes one high-order STM-N frame into four low-order STM-N
frames. In this mode, you can transmit multiple channels of data over one fiber. Each channel
has dedicated bandwidth and an independent control policy. This mode is suitable for
transmitting multiple channels of low-speed signals.
•
Concatenated
mode
—Processes one STM-N frame as a whole unit without demultiplexing.
All STM-N signals on the fiber transmit one channel of data. The same control policy applies to
all data. This mode is suitable for transmitting a channel of high-speed signal.
Set the operating mode of a 2.5 Gbps CPOS interface depending on the line rates you want.
•
To provide a 2.5 Gbps line, place the CPOS interface in concatenated mode. This task is
identical to channelizing the CPOS interface into a 2.5 Gbps channel.
•
To provide 622 Mbps lines, place the CPOS interface in channelized mode, and then create 622
Mbps channels in concatenated mode.
•
To provide 155 Mbps lines, channelize the CPOS interface into 622 Mbps channels in
channelized mode, and then create 155 Mbps channels on the 622 Mbps channels.
You can configure these channel interfaces as described in "
Channelizing a 2.5 Gbps CPOS interface into 622 Mbps channels
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter 2.5 Gbps CPOS
interface view.
controller cpos
interface-number
N/A
3.
Configure the interface to
operate in channelized
mode.
•
using
oc-48
•
undo using
By default, a 2.5 Gbps CPOS
interface operates in channelized
mode.
