docsPnmCmtsUsSpecAnTable
DOCS-PNM-MIB ·
.1.3.6.1.4.1.4491.2.1.27.1.3.8
Object
table
The upstream triggered spectrum analysis measurement provides a
wideband spectrum analyzer function in the CMTS which can be triggered
to examine desired upstream transmissions as well as underlying
noise/interference during a quiet period.
The CMTS provides wideband upstream spectrum analysis capability
covering the full upstream spectrum of the cable plant. The CMTS can
be made to use 100 kHz or better resolution (bin spacing) in the
wideband upstream spectrum measurement.
Depending on the particular CMTS implementation, variable
upstream spectrum analysis span is possible.
It is also possible that the CMTS will provide the collection of
time-domain input samples as an alternative to the frequency-domain
upstream spectrum results.
In pre-DOCSIS-3.1 mode, the CMTS provides the ability to trigger the
spectrum sample capture and perform spectrum analysis using the
following modes:
- Free running
- Trigger on minislot count
- Trigger on SID (service identifier)
- Trigger during quiet period (idle SID)
In DOCSIS 3.1 mode, the CMTS provides the ability to trigger spectrum
sample capture and perform spectrum analysis using the following modes:
- Free running
- A specified timestamp value
- Minislot Number
- A specified MAC address defining a SID, triggering at the beginning
of the first minislot granted to that SID
- The idle SID, triggering at the beginning of the first minislot
granted to that SID
- A specified active or quiet probe symbol, triggering at the beginning
of the probe symbol
Context
- MIB
- DOCS-PNM-MIB
- OID
.1.3.6.1.4.1.4491.2.1.27.1.3.8- Type
- table
- Status
- current
- Parent
- docsPnmCmtsObjects
- Children
- 1
Syntax
No syntax metadata recorded.
Values & Constraints
No enumerated values or constraints recorded.