ccwbRFChannelModulation
CISCO-CABLE-WIDEBAND-MIB ·
.1.3.6.1.4.1.9.9.479.1.1.1.4
Object
column
r/w
Enumeration
The modulation type associated with this downstream RF channel. See the associated conformance object for write conditions an limitations. See the DOCSIS specification for specifics on the modulation profiles implied by qam64 qam256 and qam1024. qam64, qam256 and qam1024 are various modulation schemes often used in digital cable and cable modem applications. The numbers 64/256/1024 in qam represent constellation points, which is the measurement of qam transmission capability, the higher the number, higher the bits that can be transmitted.
Context
- MIB
- CISCO-CABLE-WIDEBAND-MIB
- OID
.1.3.6.1.4.1.9.9.479.1.1.1.4- Type
- column
- Access
- readwrite
- Status
- current
- Parent
- ccwbRFChannelEntry
- Table
- ccwbRFChannelTable
- Siblings
- 9
Syntax
Enumeration
Values & Constraints
Enumerated Values
1 | qam64 |
2 | qam256 |
3 | qam1024 |
Related Objects
Sibling Objects
| Object | Type | Syntax | OID |
|---|---|---|---|
| ccwbRFChannelNum The WCMTS identification of the RF channel.
The range of this object is limited to 0-18 in the
case of annex A/256qam, and 0-23 for Annex B and C. | column | Unsigned32 | .1.3.6.1.4.1.9.9.479.1.1.1.1 |
| ccwbRFChannelFrequencyRev1 The center of the downstream frequency associated with
this RF channel. The final downstream RF frequency
may be provided by an edge QAM device or the CMTS itself.
See the associa… | column | hertz Unsigned32 | .1.3.6.1.4.1.9.9.479.1.1.1.10 |
| ccwbRFChannelFrequency deprecated The center of the downstream frequency associated with
this RF channel. The final downstream RF frequency
may be provided by an edge QAM device or the CMTS itself.
See the associa… | column | hertz Unsigned32 | .1.3.6.1.4.1.9.9.479.1.1.1.2 |
| ccwbRFChannelWidth The bandwidth of this downstream RF channel. Most
implementations are expected to support a channel width
of 6 MHz (North America) and/or 8 MHz (Europe).
See the associated compli… | column | hertz Unsigned32 | .1.3.6.1.4.1.9.9.479.1.1.1.3 |
| ccwbRFChannelAnnex The value of this object indicates the conformance of
the implementation to important regional cable standards.
annexA : Annex A from ITU-J83 is used.
annexB : Annex B from ITU-J8… | column | Enumeration | .1.3.6.1.4.1.9.9.479.1.1.1.5 |
| ccwbRFChannelMpegPkts The number of MPEG packets transmitted on this RF
channel. | column | Packets SNMPv2-SMICounter64 | .1.3.6.1.4.1.9.9.479.1.1.1.6 |
| ccwbRFChannelStorageType The storage type for this conceptual row. | column | SNMPv2-TCStorageType | .1.3.6.1.4.1.9.9.479.1.1.1.7 |
| ccwbRFChannelRowStatus Controls and reflects the status of rows in this table.
It can be used for creating and deleting
entries in this table.
The ccwbRFChannelAnnex and ccwbRFChannelModu… | column | SNMPv2-TCRowStatus | .1.3.6.1.4.1.9.9.479.1.1.1.8 |
| ccwbRFChannelUtilization The calculated and truncated utilization for
this RF channel over the previous complete measuring
interval. The configured duration of the measurement
intervals is defined in the … | column | percent Unsigned32 | .1.3.6.1.4.1.9.9.479.1.1.1.9 |