
Configuring WAN Line Services
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Configuring NRZI Line Encoding
You can specify nonreturn to zero inverted (NRZI) line encoding to communicate
state changes between the subscriber’s devices across the frame relay network.
You can also specify the NRZI encoding format in the frame on the logical line.
Using the BCC
The sync-line-coding command specifies the encoding format in the frame on the
logical line. Valid options are:
• nrz -- The default; this format uses nonreturn to zero coding.
• nrzi -- This format uses nonreturn to zero inverted coding.
• nrzimark -- This format uses a 0-bit to indicate a state change and a 1-bit to
indicate no state change.
To change the NRZI encoding format, navigate to the logical-line prompt (for
example,
box
;
ft1/1/1
;
logical-line/1/1
) and type:
sync-line-coding
variable
For example:
logical-line/1/1#
sync-line-coding nrzimark
Using Site Manager
You can configure the NRZI Enable and NRZI type parameters. If applicable, see
“Configuring a Non-PRI Logical Line” on page 8-20
.
When enabled, the NRZI Enable parameter specifies NRZI line encoding to
communicate state changes between the subscriber’s devices across the frame
relay network. You can disable communication of such state changes by setting
this parameter to Disable.
See the NRZI Enable parameter on page A-55 for information.
The NRZI Type parameter specifies the NRZI encoding format in the frame on the
logical line. Ignore NRZI Type if you set NRZI Enable to Disable.
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