xdsl2SCStatusSegmentSnr
VDSL2-LINE-MIB ·
.1.3.6.1.2.1.10.251.1.2.5.1.6
Object
column
0.5 dB OctetString
The SNR Margin per subcarrier group, expressing the ratio between the received signal power and received noise power per subscriber group. It is an array of 512 octets, designed for supporting up to 512 (downstream) subcarrier groups and can be retrieved in a single segment. The number of utilized octets in the downstream direction depends on NSds; in the upstream direction, it depends on NSus. This value is referred to here as NS. Octet i (0 <= i <= NS) is set to a value in the range 0 to 254 to indicate that the respective downstream or upstream subcarrier group i has an SNR of: (-32 + xdsl2SCStatusSegmentSnr(i)/2) in dB (i.e., -32 to 95 dB). The special value 255 means that no measurement could be done for the subcarrier group because it is out of the PSD mask passband or that the noise PSD is out of range to be represented. Each value in this array is 8 bits wide.
Context
- MIB
- VDSL2-LINE-MIB
- OID
.1.3.6.1.2.1.10.251.1.2.5.1.6- Type
- column
- Access
- readonly
- Status
- current
- Units
- 0.5 dB
- Parent
- xdsl2SCStatusSegmentEntry
- Table
- xdsl2SCStatusSegmentTable
- Siblings
- 7
Syntax
0.5 dB OctetString
Values & Constraints
Object Constraints
range: 0-512
Related Objects
Sibling Objects
| Object | Type | Syntax | OID |
|---|---|---|---|
| xdsl2SCStatusSegment The segment of the subcarriers status information provided by
this row.
Several status parameters in this table are retrieved in segments.
The first segment of the status informat… | column | Unsigned32 | .1.3.6.1.2.1.10.251.1.2.5.1.1 |
| xdsl2SCStatusSegmentLinReal An array of up to 512 complex H(f) linear representation
values in linear scale for the respective transmission direction.
It is designed to support up to 512 (downstream) subcarr… | column | OctetString | .1.3.6.1.2.1.10.251.1.2.5.1.2 |
| xdsl2SCStatusSegmentLinImg An array of up to 512 complex H(f) linear representation
values in linear scale for the respective transmission direction.
It is designed to support up to 512 (downstream) subcarr… | column | OctetString | .1.3.6.1.2.1.10.251.1.2.5.1.3 |
| xdsl2SCStatusSegmentLog An array of up to 512 real H(f) logarithmic representation
values in dB for the respective transmission direction. It is
designed to support up to 512 (downstream) subcarrier gro… | column | dB OctetString | .1.3.6.1.2.1.10.251.1.2.5.1.4 |
| xdsl2SCStatusSegmentQln An array of up to 512 real Quiet Line Noise values in dBm/Hz
for the respective transmission direction. It is designed for up
to 512 (downstream) subcarrier groups and can be ret… | column | dBm/Hz OctetString | .1.3.6.1.2.1.10.251.1.2.5.1.5 |
| xdsl2SCStatusSegmentBitsAlloc The bits allocation per subcarrier. An array of 256 octets
(512 nibbles) designed for supporting up to 512 (downstream)
subcarriers. When more than 512 subcarrier… | column | bits VDSL2-LINE-TC-MIBXdsl2BitsAlloc | .1.3.6.1.2.1.10.251.1.2.5.1.7 |
| xdsl2SCStatusSegmentGainAlloc The gain allocation per subcarrier. An array of 512 16-bit
values, designed for supporting up to 512 (downstream)
subcarriers. When more then 512 subcarriers are supported, the
… | column | OctetString | .1.3.6.1.2.1.10.251.1.2.5.1.8 |