H3C Technologies H3C SR8800 - Manual (Page 43)

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Step Command Remarks
1. Enter system view. system-view N/A
2. Enter CPOS interface view. controller cpos cpos-number N/A
3. Set the framing format for an
E1 channel. e1 e1-number set frame-format
{ crc4 | no-crc4 }
Optional.
The default is no-CRC4.
An E1 channel working in
unframed mode does not support
framing format setting.
4. Set the clock mode for an E1
channel. e1 e1-number set clock { master |
slave } Optional.
The default is slave.
5. Set the loopback mode for an
E1 channel. e1 e1-number set loopback { local
| payload | remote } Optional.
Disabled by default.
6. Set the overhead bytes for an
E1 channel.
e1 e1-number set flag c2 c2-value
e1 e1-number set flag j2 { sdh |
sonet } j2-string
Optional.
The default value of C2 is 0x02 (in
hexadecimal). The initial value (for
example, the value when the router
is initially powered on) of J2 is
“SR8800”, but it changes to null
(the default value) after a change
in the framing format.
7. Configure the operating mode
for an E1 channel.
• Configure an E1 channel to
operate in unframed mode:
e1 e1-number unframed
• Configure an E1 channel to
operate in framed mode and
perform timeslot bundling to
generate a serial interface
a. (Optional) undo e1
e1-number unframed
b. e1 e1-number channel-set
set-number timeslot-list
range
Use either approach.
By default, the E1 channel
operates in framed mode.
8. Shut down an E1 channel. e1 e1-number shutdown
Optional.
By default, an E1 channel is up.
Configuring a T1 channel
To configure a T1 channel:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter CPOS interface view. controller cpos cpos-number N/A