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Cisco Bug: CSCvt28944 - CBR8: D31 modems unable to come online as all RCC have impaired channel

Last Modified

Mar 11, 2020

Products (1)

  • Cisco cBR Series Converged Broadband Routers

Known Affected Releases


Description (partial)

A D31 modem will be unable to come online if previously impaired channels were reported to the CMTS, leaving no RCC available without impaired channel.
In that case Path_SEL cannot find a matching RCC for the CM and the CM will restart.

As D31 cannot come NB online it must have at least one RCC available without impaired channel.

Unstable RF plant causing DS channels to impaired
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