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cable modulation-profile
Syntax Description
profile
mix
mix-high
mix-low
mix-mid
mix-qam
qam-8
qam-16
qam-32
qam-64
qpsk
robust-mix
robust-mix-high
Cisco Broadband Cable Command Reference Guide
2-168
Specifies the modulation profile number. The valid values for the profile
number depend on the cable interface being used and the upstream's mode
of operation. Use the following as guidelines, and see
171
for specifics.
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 profile 1 as the default DOCSIS 1.x profile.
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 profile 141 as the default mixed mode
profile.
•
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 profile 241 as the default DOCSIS 2.0 A-TDMA profile.
In Cisco IOS Release 12.2(15)CX and later releases, you can create a
maximum of 10 profiles for each mode of operation, for a total of 30
profiles. In earlier software releases, you can create a maximum of 8
profiles only for DOCSIS 1.0 and DOCSIS 1.1 mode.
(DOCSIS 1.0 and DOCSIS 1.1 mode only) Creates a default QPSK/16-
QAM mix modulation profile where short and long grant bursts are sent
using 16-QAM, while request, initial ranging, and station maintenance
bursts are sent using QPSK). The burst parameters are set to their default
values for each burst type.
(DOCSIS 1.x/2.0 mixed and DOCSIS 2.0 modes only) Creates a default
QPSK/64-QAM modulation profile.
(DOCSIS 1.x/2.0 mixed and DOCSIS 2.0 modes only) Creates a default
QPSK/16-QAM modulation profile.
(DOCSIS 1.x/2.0 mixed and DOCSIS 2.0 A-TDMA modes only) Creates a
default QPSK/32-QAM modulation profile.
(DOCSIS 1.x/2.0 mixed and DOCSIS 2.0 A-TDMA modes only) Creates a
default 16-QAM/64-QAM modulation profile.
(DOCSIS 2.0 A-TDMA mode only) Creates a default 8-QAM modulation
profile.
Creates a default 16-QAM modulation profile.
(DOCSIS 2.0 A-TDMA mode only) Creates a default 32-QAM modulation
profile.
(DOCSIS 2.0 A-TDMA mode only) Creates a default 64-QAM modulation
profile.
Creates a default QPSK modulation profile.
(DOCSIS 1.0 and DOCSIS 1.1 mode only) Creates a default QPSK/16-
QAM modulation profile with a longer preamble that is more robust and
more able to deal with noise on the upstream better than the mix profile.
(DOCSIS 1.x/2.0 mixed and DOCSIS 2.0 A-TDMA modes only) Creates a
default QPSK/64-QAM mixed modulation profile with a longer preamble
that is more robust and more able to deal with noise on the upstream better
than the mix-high profile.
Chapter 2
Cisco CMTS Configuration Commands
Table 2-5 on page 2-
OL-1581-08
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