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Cisco Bug: CSCvt08079 - NDF/NDR Upstream Capture/Sweepcan become non-functional after Viavi attempts to re-enable US Capture

Last Modified

May 12, 2020

Products (1)

  • Cisco cBR Series Converged Broadband Routers

Known Affected Releases


Description (partial)

Occasionally or after a prolonged period of time, normal function does not resume. The following message is seen at the cBR8 console log: 
# *Feb 17 09:14:18.211 EST: %CMTS_INFRA-3-PNM_ZERO_FREQ_SPAN_CFG: PNM: Capture tests cannot be started on port 1/0/14 dev 0 - both capture config center frequency: 0Hz and span: 0Hz should be non zero or no meaningful data can be captured by CLC.

PNM Upstream Capture long Duration timeout followed by subsequent start of capture
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