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cable upstream modulation-profile
cable upstream modulation-profile
To assign one or two modulation profiles to an upstream port, use the cable upstream modulation-
profile command in cable interface configuration mode. To assign modulation profile 1 to the upstream
port and to disable the Dynamic Upstream Modulation feature, use the no form of this command.
Syntax Description
n
primary-profile number
secondary-profile number
Defaults
Default modulation profiles are created, using profile numbers 1, 21, 41, 101, 121, 201, 221, and 241,
depending on DOCSIS mode and the cable interface line cards being used. See
for the list of supported profiles and cable interface line cards.
Cisco Broadband Cable Command Reference Guide
2-332
cable upstream n modulation-profile primary-profile-number [secondary-profile-number]
no cable upstream n modulation-profile primary-profile-number [secondary-profile-number]
Specifies the upstream port number. Valid values start with 0 for the
first upstream port on the cable interface line card.
Number identifying the primary modulation profile for the upstream
port. The primary modulation profile is used when the upstream is
operating with nominal noise conditions. The valid values depend on
the cable interface being used and the mode of operation:
If the upstream is configured for DOCSIS 1.0 and DOCSIS 1.1
•
mode, the valid range is from 1 to 99, depending on the cable
interface. The system creates profiles 1, 21, and 41 as the default
DOCSIS 1.x profiles, depending on the installed cable interfaces.
•
If the upstream is configured for DOCSIS 1.x and DOCSIS 2.0
mixed mode, the valid range is from 100 to 199, depending on the
cable interface. The system creates profiles 101, 121, and 141 as
the default mixed mode profiles, depending on the installed cable
interfaces.
If the upstream is configured for DOCSIS 2.0 A-TDMA mode, the
•
valid range is from 200 to 299, depending on the cable interface.
The system creates profiles 201, 221, and 241 as the default
DOCSIS 2.0 A-TDMA profiles, depending on the installed cable
interfaces.
Note
See the description of the
for a table of the valid ranges for the individual cable interface
cards.
Secondary modulation profile for the upstream port, which is used
when noise on the upstream increases to the point that the primary
modulation profile can no longer be used. The valid values are the
same ranges as for the primary modulation profile.
The secondary modulation profile should specify a more robust
Note
performance profile (in terms of coping with noise) than the
primary profile.
Chapter 2
Cisco CMTS Configuration Commands
cable modulation-profile
Table 2-5 on page 2-171
command
OL-1581-08
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