
Configuring FE1 Services
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Viewing the Configured WAN Protocol
The WAN Protocol parameter indicates which WAN protocol is configured on this
logical line. Do not change the current value.
To change the configured WAN protocol for an interface, you must delete and then
reconfigure the circuit.
See the WAN Protocol parameter on page A-67 for information.
Setting the CRC Size
By default, the router uses the 16-bit CRC type. The router appends a 16-bit CRC
to the transmitted frames and performs a 16-bit CRC on received frames. You can
change the CRC type to 32-bit CRC, where the router appends a 32-bit CRC to
transmitted frames and performs a 32-bit CRC on received frames.
Using the BCC
To specify CRC size, navigate to the logical-line prompt (for example,
box
;
fe1/1/1
;
logical-line/boston
) and type:
crc-size
variable
For example:
logical-line/boston#
crc-size crc16bit
logical-line/boston#
crc-size crc32bit
Using Site Manager
See the CRC Size parameter on page A-68 for information.
Setting Synchronous Line Coding
You can specify the line coding of the physical synchronous line to match the line
coding of a device at the other end of the line. Specify the line coding as follows:
• Select NRZ (the default) for nonreturn to zero coding.
Caution:
Changing the WAN protocol does not reconfigure the interface and
could disable it.
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