H3C Technologies H3C SR8800 - Manual (Page 44)

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Step Command Remarks
3. Set the framing format for a T1
channel.
t1 t1-number set frame-format { esf
| sf }
Optional.
The default is ESF.
A T1 channel working in unframed
mode does not support framing
format setting.
4. Set the clock mode for a T1
channel.
t1 t1-number set clock { master |
slave } Optional.
The default is slave.
5. Set the loopback mode for a
T1 channel. t1 t1-number set loopback { local |
payload | remote } Optional.
Disabled by default.
6. Set the overhead bytes for a
T1 channel.
• t1 t1-number set flag c2
c2-value
• t1 t1-number set flag j2 { sdh |
sonet } j2-string
Optional.
The default value of C2 is 0x02.
The initial value (for example, the
value when the router is initially
powered on) of J2 is “SR8800”
and the value changes to null (the
default value) after a change in the
framing format.
7. Configure the operating mode
for a T1 channel.
• Approach I:
Configure a T1 channel to
operate in unframed mode:
t1 t1-number unframed
• Approach II:
Configure a T1 channel to
operate in unframed mode and
perform timeslot bundling to
generate a serial interface:
a. (Optional) undo t1
t1-number unframed
b. t1 t1-number channel-set
set-number timeslot-list
range [ speed { 56k |
64k } ]
Use either approach.
By default, the T1 channel operates
in framed mode.
8. Shut down a T1 channel. t1 t1-number shutdown
Optional.
By default, a T1 channel is up.
Configuring an E3 channel
To configure an E3 channel:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter CPOS interface view. controller cpos cpos-number N/A
3. Create a serial interface
corresponding to the
unframed E3 channel.
using e3 e3-number
Optional.
By default, no serial interface is
created.