Enterasys X-Pedition XSR CLI Cli Reference Manual page 73

Note: The C-bit T3 parity framing format is an enhancement of the original M13 format. The main
difference is the C-bit framing format always stuffs the first bit of the 8th block in each sub-frame. So,
in C-bit format, C-bits permit greater management and performance functions on the M frame.
Syntax
framing {sf | esf} (T1)
framing {crc4 | no-crc4} (E1)
framing {c-bit | m13} (T3)
framing {g751 | bypass} (E3)
sf
esf
c-bit
m13
crc4
no-crc4
g751
bypass
Syntax of the "no" Form
Return to the default framing setting by using the no form:
no framing
Defaults
• T1: ESF
• E1: CRC4
• T3: c‐bit
• E3: g751
Mode
Controller configuration:
Example
The following example configures the T1 controller on NIM card 0, port 0, with ESF framing:
XSR(config)#controller t1 1/0
XSR(config-controller<T1-1/0>)#framing esf
This example sets the T3 controller with line source clocking, M23 framing, and channelized mode:
XSR(config-controller<T3-1/2/0>)#channelized
XSR(config-controller<T3-1/2/0>)#clock source line
XSR(config-controller>T3-1/2/0>)#framing m13
T1 frame type set to Super Frame (D4, F12).
T1 frame type set to Extended Super Frame.
T3 frame type set to
C‐
T3 unchannelized frame type set to M13.
E1 frame type set to CRC4 frame.
E1 frame type set to no CRC4 frame.
E3 frame type set to G.751.
E3 frame type set to be bypassed. Unchannelized implied.
XSR(config-controller<xx>)#
bit.
T1/E1 & T3/E3 Commands
XSR CLI Reference Guide 2-67