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Cisco Bug: CSCup56255 - Mod profile preamble displayed incorrectly

Last Modified

Apr 17, 2019

Products (1)

  • Cisco uBR10000 Series Universal Broadband Routers

Known Affected Releases

12.2(33)SCG3 12.2(33)SCH 12.2(33)SCH1 12.2(33)SCH2

Description (partial)

Symptom:
The display of the preamble length for IM and SM bursts in "sh cable modulation-profile c x/y/z up n" is incorrect when the modulation-profile uses 16-QAM for IM and SM bursts and pre-equalization is configured on the upstream.

This is a display only issue since the correct preamble length is sent in the UCDs.

Conditions:
16-QAM modulation profile for the IM and SM bursts in combination with pre-equalization on the upstream.
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