adsl2SCStatusQln
ADSL2-LINE-MIB ·
.1.3.6.1.2.1.10.238.1.2.2.1.13
Object
column
dBm/Hz OctetString
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) sub-carriers. The number of utilized values on downstream direction depends on NSCds, and on upstream direction it depends on NSCus. This value is referred to here as NSC. Each array entry represents the QLN(f = i*Df) value for a particular sub-carrier index i, (0 <= i < NSC). The QLN(f) is represented as ( -23-n(i)/2), with n(i) in the range 0 to 254. A special value n(i)=255 indicates that no measurement could be done for the subcarrier because it is out of the passband or that the noise PSD is out of range to be represented. This parameter is applicable in loop diagnostic procedure and initialization. Each value in this array is 8 bits wide.
Context
- MIB
- ADSL2-LINE-MIB
- OID
.1.3.6.1.2.1.10.238.1.2.2.1.13- Type
- column
- Access
- readonly
- Status
- current
- Units
- dBm/Hz
- Parent
- adsl2SCStatusEntry
- Table
- adsl2SCStatusTable
- Siblings
- 18
Syntax
dBm/Hz OctetString
Values & Constraints
Object Constraints
range: 0-512
Related Objects
Sibling Objects
| Object | Type | Syntax | OID |
|---|---|---|---|
| adsl2SCStatusDirection The direction of the sub-carrier is either
upstream or downstream. | column | ADSL2-LINE-TC-MIBAdsl2Direction | .1.3.6.1.2.1.10.238.1.2.2.1.1 |
| adsl2SCStatusLogMt The number of symbols used to measure the H(f) logarithmic
measurement values for the respective transmission direction.
This parameter should correspond to the value specified in… | column | SNMPv2-SMIUnsigned32 | .1.3.6.1.2.1.10.238.1.2.2.1.10 |
| adsl2SCStatusLog 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) sub-carriers.
… | column | OctetString | .1.3.6.1.2.1.10.238.1.2.2.1.11 |
| adsl2SCStatusQlnMt The number of symbols used to measure the Quiet Line Noise
values on the respective transmission direction. This
parameter should correspond to the value specified in the
recomme… | column | SNMPv2-SMIUnsigned32 | .1.3.6.1.2.1.10.238.1.2.2.1.12 |
| adsl2SCStatusLnAtten When referring to the downstream direction, it is the measured
difference in the total power transmitted by the ATU-C and the
total power received by the ATU-R over all sub-carrie… | column | 0.1 dB Unsigned32 | .1.3.6.1.2.1.10.238.1.2.2.1.14 |
| adsl2SCStatusSigAtten When referring to the downstream direction, it is the measured
difference in the total power transmitted by the
ATU-C and the total power received by the ATU-R over all sub-
carri… | column | 0.1 dB Unsigned32 | .1.3.6.1.2.1.10.238.1.2.2.1.15 |
| adsl2SCStatusSnrMargin SNR Margin is the maximum increase in dB of the noise power
received at the ATU (ATU-R on downstream direction and ATU-C
on upstream direction), such that the BER requirements are… | column | 0.1 dB Integer32 | .1.3.6.1.2.1.10.238.1.2.2.1.16 |
| adsl2SCStatusAttainableRate Maximum Attainable Data Rate. The maximum net data rate
currently attainable by the ATU-C transmitter and ATU-R
receiver (when referring to downstream direction) or by the
ATU-R … | column | bits/second SNMPv2-SMIUnsigned32 | .1.3.6.1.2.1.10.238.1.2.2.1.17 |
| adsl2SCStatusActAtp Actual Aggregate Transmit Power from the ATU (ATU-R on
downstream direction and ATU-C on upstream direction), at the
instant of measurement. It ranges from -310 to 310 units of
0… | column | 0.1 dB SNMPv2-SMIInteger32 | .1.3.6.1.2.1.10.238.1.2.2.1.18 |
| adsl2SCStatusRowStatus Row Status. The manager may create and delete rows
of this table. Please see the description of
adsl2SCStatusTable above for more details. | column | SNMPv2-TCRowStatus | .1.3.6.1.2.1.10.238.1.2.2.1.19 |
| adsl2SCStatusMtime SNR Measurement Time. The number of symbols used to
measure the SNR values on the respective transmission
direction. It should correspond to the value specified in the
recommend… | column | symbols SNMPv2-SMIUnsigned32 | .1.3.6.1.2.1.10.238.1.2.2.1.2 |
| adsl2SCStatusSnr The SNR Margin per sub-carrier, expressing the ratio between
the received signal power and received noise power per
subscriber. It is an array of 512 octets, designed for
support… | column | OctetString | .1.3.6.1.2.1.10.238.1.2.2.1.3 |
| adsl2SCStatusBitsAlloc The bits allocation per sub-carrier. An array of 256 octets
(512 nibbles), designed for supporting up to 512 (downstream)
sub-carriers.
The number of utilized nibbles on downstre… | column | bits OctetString | .1.3.6.1.2.1.10.238.1.2.2.1.4 |
| adsl2SCStatusGainAlloc The gain allocation per sub-carrier. An array of 512 16-bits
values, designed for supporting up to 512 (downstream) sub-
carriers.
The number of utilized octets on downstream dir… | column | OctetString | .1.3.6.1.2.1.10.238.1.2.2.1.5 |
| adsl2SCStatusTssi The transmit spectrum shaping (TSSi) breakpoints expressed
as the set of breakpoints exchanged during G.994.1.
Each breakpoint is a pair of values occupying 3 octets with the
foll… | column | ADSL2-LINE-TC-MIBAdsl2Tssi | .1.3.6.1.2.1.10.238.1.2.2.1.6 |
| adsl2SCStatusLinScale The scale factor to be applied to the H(f) linear
representation values for the respective transmission direction.
This parameter is only available after a loop diagnostic
procedu… | column | SNMPv2-SMIUnsigned32 | .1.3.6.1.2.1.10.238.1.2.2.1.7 |
| adsl2SCStatusLinReal 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)
sub-ca… | column | OctetString | .1.3.6.1.2.1.10.238.1.2.2.1.8 |
| adsl2SCStatusLinImg 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)
sub-ca… | column | OctetString | .1.3.6.1.2.1.10.238.1.2.2.1.9 |