Cisco Cisco IOS Software Release 12.1(7)CX
Prerequisites
7
Advanced Spectrum Management Features for the Cisco uBR-MC16S Spectrum Management Card
Cisco IOS Release 12.1(7)CX1
RFCs
No new or modified RFCs are supported by this feature.
Prerequisites
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Cisco IOS software Release 12.1(7)CX1
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Cisco uBR-MC16S line card
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Ensure your network supports reliable broadband data transmission. At minimum, your network
must include:
must include:
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A Dynamic Host Configuration Protocol (DHCP) server to assign IP addresses to cable modems
or set-top boxes on the hybrid fiber/coaxial (HFC) network. This can be a server on the WAN
side of the Cisco uBR7200 series router or the Cisco uBR7200 series router that has been
configured to act as the DHCP server.
or set-top boxes on the hybrid fiber/coaxial (HFC) network. This can be a server on the WAN
side of the Cisco uBR7200 series router or the Cisco uBR7200 series router that has been
configured to act as the DHCP server.
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Cisco uBR7200 series-compatible IF-to-RF upconverter installed in the downstream data path
at your headend site. The upconverter is installed between the Cisco uBR7200 series router and
the combiner.
at your headend site. The upconverter is installed between the Cisco uBR7200 series router and
the combiner.
Note
The term “combiner” refers to all cables, amplifiers, and taps at the headend or cable
distribution center that connect the Cisco uBR7200 series router to the HFC network.
distribution center that connect the Cisco uBR7200 series router to the HFC network.
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Diplex filters installed in the downstream RF path between the cable modems and the cable line
cards in the Cisco uBR7200 series router. RG-59 headend coaxial cable with the maximum
braid available (60 percent + 40 percent braid), double foil, and the correct connector for this
cable.
cards in the Cisco uBR7200 series router. RG-59 headend coaxial cable with the maximum
braid available (60 percent + 40 percent braid), double foil, and the correct connector for this
cable.
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Complete a basic configuration of the Cisco uBR7200 series as described in the
Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide.
Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide.
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Avoid frequencies with known ingress problems such as amateur radio bands or short-wave bands.
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Avoid hostile spectrums below 20 MHz.
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When designing your channel plan, allow extra bands for frequency hopping.
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Use the receive power level setting to perform slight equalization adjustments.
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Due to the nature of CATV technology, upstream noise management is a significant issue.
Cisco recommends that you follow the rigorous North American plant maintenance procedures that
are documented in the NCTA Supplement on Upstream Transport Issues (available from the National
Cable and Telecommunications Association, http://www.ncta.com) to adjust return amplifiers and
lasers.
Cisco recommends that you follow the rigorous North American plant maintenance procedures that
are documented in the NCTA Supplement on Upstream Transport Issues (available from the National
Cable and Telecommunications Association, http://www.ncta.com) to adjust return amplifiers and
lasers.
Configuration Tasks
See the following sections for configuration tasks for the Cisco uBR-MC16S Line Card Spectrum
Management Enhancements feature. Each task in the list is identified as either optional or required.
Management Enhancements feature. Each task in the list is identified as either optional or required.
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