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Chapter 2 Cisco CMTS Configuration Commands
cable upstream fec
cable upstream fec
To enable upstream forward error correction (FEC), use the
cable upstream fec
command in cable
interface configuration mode. To disable FEC, use the
no
form of this command.
cable upstream
n
fec
no cable upstream
n
fec
Syntax Description
Defaults
Enabled
Command Modes
Interface configuration (cable interface only)
Command History
Usage Guidelines
The Cisco CMTS uses FEC to attempt to correct any upstream data that might have been corrupted. To
use this feature, you need to activate FEC on the upstream RF carrier. When FEC is activated, the
Cisco CMTS commands all CMs on the network to activate FEC.
Examples
The following example shows how to activate upstream forward error correction:
router (config-if)#
cable upstream 0 fec
Related Commands
n
Specifies the upstream port number. Valid values start with 0 for the first
upstream port on the cable interface line card.
Release
Modification
11.3 XA
This command was introduced.
Command
Description
cable upstream frequency
Enters a fixed frequency of the upstream RF carrier for an
upstream port.
cable upstream power-level
Sets the input power level for the upstream RF carrier in
decibels per millivolt (dBmV).
cable upstream scrambler
Enables the cable upstream scrambler.
cable upstream shutdown
Disables the upstream port.
Содержание Broadband Cable
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Страница 1216: ...6 214 Cisco Broadband Cable Command Reference Guide OL 1581 07 Chapter 6 Cable CPE Commands debug usb ...
Страница 1266: ...A 50 Cisco Broadband Cable Command Reference Guide OL 1581 07 Appendix A Using the ROM Monitor unset ...