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Cisco Bug: CSCvu92404 - cBR8 : Downstream QAMs 'Down' and Not Recovering Back to 'Up' State

Last Modified

Sep 29, 2020

Products (1)

  • Cisco cBR Series Converged Broadband Routers

Known Affected Releases

Gibraltar-16.10.1

Description (partial)

Symptom:
Downstream QAMs in down state. QAMs are not modem(cm-status) reported down QAMs (not due to MER/Plant impairment). QAMs are down for all the modems(not a partial service issue).

2/0/4 0   UP       N/A      0        1       Apr 11 20:32:25
      2   DOWN     Yes      0        7       Jun 11 09:16:22
      10  DOWN     Yes      0        3       Jun 11 09:16:22
      18  DOWN     Yes      0        3       Jun 11 09:16:27
      26  DOWN     Yes      0        3       Jun 11 09:16:22
      34  DOWN     Yes      0        5       Jun 11 09:16:27
      42  DOWN     Yes      0        6       Jun 11 09:16:27
2/0/5 0   UP       N/A      0        0      
      2   DOWN     Yes      0        1       Apr 30 08:17:34
      10  DOWN     Yes      0        1       Apr 30 08:17:34
      18  DOWN     Yes      0        1       Apr 30 08:17:34
      26  DOWN     Yes      0        1       Apr 30 08:17:34
      34  DOWN     Yes      0        3       Apr 30 08:17:34
      42  DOWN     Yes      0        2       Apr 30 08:17:35

Conditions:
DSPHY Module FW occasionally unresponsive and channels in DOWN state
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