Modem Deregistration Reason normal - the CMTS has lost contact with the modem. operatorReset - reset by the operator operatorDisabled - operator has disabled the modem operatorDeleted - was removed from the system transmissionFailed - the transmitter communicating to the modem has failed transmissionDisabled - the transmitter communicating to the modem has been disabled transmissionDeleted - the transmitter communicating to the modem has been deleted servingGroupChanged - the assignment of the serving groups for the modem has changed receiverFailed - the receiver communicating with the modem has failed receiverDisabled - the receiver communicating with the modem has been disabled receiverDeleted - the receiver communicating with the modem has beeb deleted channelDeleted - a channel has changed on the receiver that has caused the modem to deregister channelErrors - deregistered due to unacceptable amount of channel errors incompleteReg - deregistered due to incomplete registration profileUpdateComplete - deregistered after profile update skeyFailure - deregistered due to session key failure dnChanChangeFailure - due to downstream transmission channel change failure noDeregReason - no deregistration reason available powerTolerance - power ranging corrections were out of tolerance freqTolerance - frequency ranging corrections were out of tolerance timingTolerance - timing ranging correction were out of tolerance rangingTolerance - multiple ranging corrections were out of tolerance noResponseUCC - modem did not respond to the UCC request This is a place holder for the modem deregistration reason. This should return ZERO when read. This just allows us to include a deregistration reason in the modem deregistration trap varbind.