User's Manual

Table Of Contents
BelAirOS User Guide Cable Modem Configuration
April 22, 2012 Confidential Page 99 of 362
Document Number BDTM00000-A02 Draft
modem interface, it may take time to identify and correct the root cause.
During this period, multiple
Interface Down
alarms would be generated.
Enabling the alarm threshold reduces the number of
Interface Down
alarms
generated per calendar day. If the threshold is reached, the system generates
instead a single
Excess Cable Modem Interface Down Events
alarm and stops
generating additional
Interface Down
alarms. The
Interface Down
events are
still tracked through the tunnel’s performance monitoring statistics, allowing
you to analyze the behavior.
The
<num_of_alarms>
parameter ranges from 2 to 50. By default, the alarm
threshold is enabled with a setting of
5
, meaning that the
Excess Cable Modem
Interface Down Events
alarm is generated once 5
Interface Down
events occur
in a day.
Alarms generated during a maintenance window do not count against the alarm
threshold. For details see, “Defining a Maintenance Window” on page 75.
Rebooting the
Cable Modem
/card/cm-<n>/reboot [set-default]
Use this command to reboot the cable modem. Use the
set-default
parameter
to return the cable modem settings to factory defaults.
Cable Modem
Statistics
/card/cm-<n>/show statistics
{all|up_channel|signal_quality|uptime|status}
This command applies to the BelAir100SN and the BelAir100SNE. It displays
additional data that can be retrieved from the cable modem:
all
, all data
up_channel
, display up channel data
signal_quality
, display signal quality data
uptime
, display cable modem up time
status
, display cable modem status data
Example
/card/cm-9#show statistics all
Signal quality
Unerroreds : 2140459029 2140178006 2140177890 2140176599
Correcteds : 356 156 195 447
Uncorrectables : 4917 2309 2393 3421
Signal Noise : 350 354 352 349
Microreflections : 41 41 42 39
Status
TxPower : 505 0 0 0