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T1/E1 & T3/E3 Commands
Syntax
crc {16 | 32}
16 or 32
Syntax of the "'no" Form
The no form of this command returns to the default setting:
no crc
Default
16
Mode
Interface configuration:
Example
This example enables the 32‐bit CRC on the T1 interface:
XSR(config)#interface serial 1/0:2
XSR(config-if<S1/0:2)#crc 32
description
This command identifies the T1/E1 or T3/E3 controller. The description string provides a more
descriptive name/comment for a particular T1/E1 or T3/E3 line. This parameter can be a string
value of arbitrary length (max 80 characters). In all statistics reporting, this value identifies the T1/
E1 or T3/E3 line in a more descriptive way. This command is functional for all serial interfaces.
Syntax
description "string"
"string"
Syntax of the "no" Form
The no form of the command deletes the description:
no description
Mode
Controller configuration:
Examples
The following example configures the T1 controller in board (NIM care) 1, port 0 (first port), with
ESF framing, B8ZS line encoding and line source clocking with a description added:
2-62 Configuring T1/E1 and T3/E3 Subsystems
CRC size in bits per channel group or fractional link (port).
XSR(config-if<xx>)#
Comment (up to 80 characters) describing the T1/E1 or T3/E3 controller.
Quotations are mandatory.
XSR(config-controller<xx>)#
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