Technical information

ADC Telecommunications, Inc.
586 C
HAPTER 20: MANAGING CABLE MODEMS
Parameter Descriptions
This table describes the parameters in the Flap List window:
Table 20-11 Flap List window parameters:.
Parameter Description
MAC Address RF MAC address of the cable modem.
Flap Count Number of times that this cable modem reset from either the
ranging complete or registration complete states.
Insert Time Date and time that this cable modem was added to the flap
list.
Remove Time Last date and time that this cable modem reset.
Last Known
State
Last state of the modem.
Hit Count Number of times the modem responds to MAC layer keep
alive messages. It can indicate intermittent upstream, laser
clipping, or common-path distortion.
Miss Count Specifies the number of times the cable modem misses the
MAC layer keep alive messages. It can indicate intermittent
upstream, laser clipping, or common-path distortion.
PAdj Count Number of times the headend instructed the modem to
adjust transmit power more than the threshold-specified
number of dB. It can indicate amplifier degradation, poor
connections, or thermal sensitivity.
CRC Errors
Count
Number of Cyclic Redundancy Check errors from this cable
modem. It can indicate intermittent upstream, laser clipping,
or common-path distortion.