SOPHO
IP 5000/SOPHO IP6000
Command Reference Guide
161
Parameter
16
: Adopt 16-bit CRC.
32
: Adopt 32-bit CRC.
no-crc
: Adopt no CRC.
Description
Using the
crc
command, you can configure CRC mode of the serial interface
formed by CT3. Using the
undo crc
command, you can restore the default
setting.
By default, 16-bit CRC is used.
For the related commands, see
t1 channel-set, t1 unframed, and using
.
Example
Apply 32-bit CRC to the serial interface formed by the interface T3 1/0/0 in
unchannelized mode.
[NEC-PHILIPS-Serial1/0/0:0]
crc 32
frame-format
Syntax
frame-format { c-bit | m23 }
undo frame-format
View
CT3 interface view
Parameter
c-bit
: Sets the frame format to C-bit.
m23
: Sets the frame format to m23.
Description
Using the
frame-format
command, you can configure the frame format used by
a CT3 interface. Using the
undo frame-format
command, you can restore the
default frame format used by the CT3 interface.
By default, the CT3 interface adopts the C-bit frame format.
Example
Set the frame format of the interface T3 1/0/0 to m23.
[NEC-PHILIPS-T3 1/0/0]
frame-format m23
loopback
Syntax
loopback { local | payload | remote }
undo loopback
View
CT3 interface view
Parameter
local
: Enables the CT3 interface to perform local loopback.
payload
: Places the CT3 interface in an external payload loop. Data passes the
framer in this case and will be looped back after payload is generated.