Cisco Cisco IOS Software Release 12.1(3)EC
1
Cisco IOS Release 12.1(3a)EC1
Cisco uBR7200 Series Dynamic Upstream
Modulation
Modulation
This feature module describes the spectrum management enhancement Dynamic Upstream Modulation
feature in Cisco uBR7200 series universal broadband routers. Cisco IOS Release 12.1(3a)EC1 supports
the Dynamic Upstream Modulation feature on the Cisco uBR-MC1xC and Cisco uBR-MC16S cable
modem cards.
feature in Cisco uBR7200 series universal broadband routers. Cisco IOS Release 12.1(3a)EC1 supports
the Dynamic Upstream Modulation feature on the Cisco uBR-MC1xC and Cisco uBR-MC16S cable
modem cards.
Dynamic Upstream Modulation improves service quality in Data Over Cable Service Interface
Specification (DOCSIS) installations offering data, voice, or video services. Cisco uBR-MC16S and
Cisco uBR-MC1xC modem cards monitor the signal-to-noise ratio (SNR) and forward error correction
(FEC) counters in the active return path of each upstream port. The software with
Dynamic Upstream Modulation tracks whether the upstream channel signal quality can support the
modulation scheme configured, and adjusts to the most robust modulation scheme when necessary.
Specification (DOCSIS) installations offering data, voice, or video services. Cisco uBR-MC16S and
Cisco uBR-MC1xC modem cards monitor the signal-to-noise ratio (SNR) and forward error correction
(FEC) counters in the active return path of each upstream port. The software with
Dynamic Upstream Modulation tracks whether the upstream channel signal quality can support the
modulation scheme configured, and adjusts to the most robust modulation scheme when necessary.
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