Cisco Systems UBR10012 Enabling or Disabling Power Adjustment

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Cisco uBR10012 Universal Broadband Router Software Configuration Guide
OL-1520-05
Chapter6 Troubleshooting the System Performing Amplitude Averaging
Output of the show cable modem command appears below:
Router# show cable modem
MAC Address IP Address I/F MAC Prim RxPwr Timing Num BPI
State Sid (db) Offset CPEs Enbld
0050.04f9.edf6 10.44.51.49 C7/1/0/U0 online 1 -0.50 3757 0 no
0050.04f9.efa0 10.44.51.48 C7/1/0/U0 online 2 -0.50 3757 0 no
0030.d002.41f5 10.44.51.147 C7/1/0/U0 online 3 -0.25 3829 0 no
0030.d002.4177 10.44.51.106 C7/1/0/U0 online 4 -0.50 3798 0 no
0030.d002.3f03 10.44.51.145 C7/1/0/U0 online 5 0.25 3827 0 no
0050.04f9.ee24 10.44.51.45 C7/1/0/U0 online 6 -1.00 3757 0 no
0030.d002.3efd 10.44.51.143 C7/1/0/U0 online 7 -0.25 3827 0 no
0030.d002.41f7 10.44.51.140 C7/1/0/U0 online 8 0.00 3814 0 no
0050.04f9.eb82 10.44.51.53 C7/1/0/U0 online 9 -0.50 3756 0 no
0050.f112.3327 10.44.51.154 C7/1/0/U0 online 10 0.25 3792 0 no
0030.d002.3f8f 10.44.51.141 C7/1/0/U0 online 11 0.00 3806 0 no
0001.64f9.1fb9 10.44.51.55 C7/1/0/U0 online 12 0.00 4483 0 no
0030.d002.417b 10.44.51.146 C7/1/0/U0 online 13 0.50 3812 0 no
0090.9600.6f7d 10.44.51.73 C7/1/0/U0 online 14 0.00 4071 0 no
0010.9501.ccbb 10.44.51.123 C7/1/0/U0 online 15 0.25 3691 0 no
The asterisk (*) in the show cable modem command output indicates that the CMTS is using the power
adjustment method on this CM. The ! symbol indicates that the CM has reached maximum transmit
power.
This section documents the commands pertaining to amplitude averaging:
•cable upstream power-adjust noise
•cable upstream frequency-adjust averaging
Enabling or Disabling Power Adjustment
To enable the power-adjustment capability, use the cable upstream power-adjust command in interface
configuration mode. To disable the power-adjustment capability, use the no form of this command.
cable upstream n power-adjust {threshold [threshold #] | continue [tolerable value] | noise
[% of power adjustment]}
no cable upstream power-adjust
Syntax Description
Note The threshold default is 1dB. The tolerable value default is 2dB. The power adjustment is 30 percent.
Syntax Description
nSpecifies the upstream port number.
threshold # Specifies the power-adjustment threshold. The threshold range is from 0 to
10dB. The default is 1dB.
tolerable value Determines if the status of the RNG-RSP should be set to CONTINUE or
SUCCESS. The range is from 2 to 15dB. The default is 2dB.
% of power adjustment Specifies the percentage of power-adjustment packets required to switch
from the regular power-adjustment method to the noise power-adjustment
method. Range is from 10 to 100 percent. The default is 30 percent.