This guide describes commanded power for upstream SC-QAMs on the Cisco cBR Router.
![]() Note | The hardware components introduced in a given Cisco IOS-XE Release are supported in all subsequent releases unless otherwise specified. |
To view the new commanded power levels pr upstream, use the following command:
Router# show cable modem [ ip-address | mac-address | cable {slot /subslot /cable-interface-index}] verbose
![]() Note | DOCSIS 3.1 Commanded Power feature is enabled by default. |
The following table lists the TLVs affected by the DOCSIS 3.1 Ranging Response (RNG-RSP) Commanded Power for upstream SC-QAMs:
Name |
Type |
DOCSIS 3.1 Value |
---|---|---|
Power Level Adjust |
2 |
TX Power offset adjustment (signed 8-bit, 1/4-dB units) |
Power Offset |
12.4.4 |
TX Power offset adjustment (signed 8-bit, 1/4-dB units) |
Dynamic Range Window Upper Edge |
14 |
The upper edge of the Dynamic Range Window expressed in units 1/4 dB below the max allowable setting (Phi) [DOCSIS PHYv3.0]. |
Commanded Power |
17 |
This TLV contains the Dynamic Range Window value, P1.6load_min_set as well as the Transmit Power Level for each of the channels in the CM's Transmit Channel Set, expressed in units of quarter dBmV. |
The following table lists the sub-TLVs for DOCSIS 3.1 Commanded Power:
Description |
Link |
---|---|
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![]() Note | The table below lists only the software release that introduced support for a given feature in a given software release train. Unless noted otherwise, subsequent releases of that software release train also support that feature. |
Feature Name |
Releases |
Feature Information |
---|---|---|
DOCSIS 3.1 Commanded Power for US SC-QAMs |
Cisco IOS XE Fuji 16.7.1 |
This feature was integrated on the Cisco cBR Series Converged Broadband Routers. |