xdsl2LConfProfRaDsNrmDs
VDSL2-LINE-MIB ·
.1.3.6.1.2.1.10.251.1.5.1.2.1.12
Object
column
r/w
0.1 dB Unsigned32
The Downstream Down-Shift Noise Margin value, to be used when xdsl2LConfProfRaModeDs is set to 'dynamicRa'. If the downstream noise margin is below this value and stays below that value, for more than the time specified by the xdsl2LConfProfRaDsTimeDs, the xTU-R shall attempt to decrease the downstream net data rate. The Downstream Down-Shift Noise Margin ranges from 0 to 310 units of 0.1 dB (physical values are 0 to 31 dB).
Context
- MIB
- VDSL2-LINE-MIB
- OID
.1.3.6.1.2.1.10.251.1.5.1.2.1.12- Type
- column
- Access
- readwrite
- Status
- current
- Units
- 0.1 dB
- Parent
- xdsl2LineConfProfEntry
- Table
- xdsl2LineConfProfTable
- Siblings
- 47
Syntax
0.1 dB Unsigned32
Values & Constraints
Object Constraints
range: 0-310
Related Objects
Sibling Objects
| Object | Type | Syntax | OID |
|---|---|---|---|
| xdsl2LConfProfProfileName This object identifies a row in this table. | column | OctetString | .1.3.6.1.2.1.10.251.1.5.1.2.1.1 |
| xdsl2LConfProfRaUsTimeDs The Downstream Up-Shift Time Interval, to be used when
xdsl2LConfProfRaModeDs is set to 'dynamicRa'. The interval of
time that the downstream noise margin should stay above the
D… | column | seconds Unsigned32 | .1.3.6.1.2.1.10.251.1.5.1.2.1.10 |
| xdsl2LConfProfRaUsTimeUs The Upstream Up-Shift Time Interval, to be used when
xdsl2LConfProfRaModeUs is set to 'dynamicRa'. The interval of
time the upstream noise margin should stay above the Upstream
U… | column | seconds Unsigned32 | .1.3.6.1.2.1.10.251.1.5.1.2.1.11 |
| xdsl2LConfProfRaDsNrmUs The Upstream Downshift Noise Margin value, to be used when
xdsl2LConfProfRaModeUs is set to 'dynamicRa'. If the upstream
noise margin is below this value and stays below that val… | column | 0.1 dB Unsigned32 | .1.3.6.1.2.1.10.251.1.5.1.2.1.13 |
| xdsl2LConfProfRaDsTimeDs The Downstream Downshift Time Interval, to be used when
xdsl2LConfProfRaModeDs is set to 'dynamicRa'. The interval of
time the downstream noise margin should stay below the Downs… | column | seconds Unsigned32 | .1.3.6.1.2.1.10.251.1.5.1.2.1.14 |
| xdsl2LConfProfRaDsTimeUs The Upstream Down-Shift Time Interval, to be used when
xdsl2LConfProfRaModeUs is set to 'dynamicRa'. The interval of
time the upstream noise margin should stay below the Upstream… | column | seconds Unsigned32 | .1.3.6.1.2.1.10.251.1.5.1.2.1.15 |
| xdsl2LConfProfTargetSnrmDs The minimum Noise Margin the xTU-R receiver shall achieve,
relative to the BER requirement for each of the downstream bearer
channels, to successfully complete initialization.
The… | column | 0.1 dB Unsigned32 | .1.3.6.1.2.1.10.251.1.5.1.2.1.16 |
| xdsl2LConfProfTargetSnrmUs The minimum Noise Margin the xTU-C receiver shall achieve,
relative to the BER requirement for each of the upstream bearer
channels, to successfully complete initialization.
The t… | column | 0.1 dB Unsigned32 | .1.3.6.1.2.1.10.251.1.5.1.2.1.17 |
| xdsl2LConfProfMaxSnrmDs The maximum Noise Margin the xTU-R receiver shall try to
sustain. If the Noise Margin is above this level, the xTU-R
shall request that the xTU-C reduce the xTU-C transmit power … | column | 0.1 dB Unsigned32 | .1.3.6.1.2.1.10.251.1.5.1.2.1.18 |
| xdsl2LConfProfMaxSnrmUs The maximum Noise Margin the xTU-C receiver shall try to
sustain. If the Noise Margin is above this level, the xTU-C
shall request that the xTU-R reduce the xTU-R transmit power … | column | 0.1 dB Unsigned32 | .1.3.6.1.2.1.10.251.1.5.1.2.1.19 |
| xdsl2LConfProfScMaskDs Subcarrier mask. A bitmap of 4096 bits that allows masking
up to 4096 downstream subcarriers. If bit i (0 <= i <
NSCds) is set to '1', the respective downstream
subcarrier is ma… | column | VDSL2-LINE-TC-MIBXdsl2ScMaskDs | .1.3.6.1.2.1.10.251.1.5.1.2.1.2 |
| xdsl2LConfProfMinSnrmDs The minimum Noise Margin the xTU-R receiver shall tolerate.
If the noise margin falls below this level, the xTU-R shall
request that the xTU-C increase the xTU-C transmit power.
I… | column | 0.1 dB Unsigned32 | .1.3.6.1.2.1.10.251.1.5.1.2.1.20 |
| xdsl2LConfProfMinSnrmUs The minimum Noise Margin the xTU-C receiver shall tolerate.
If the noise margin falls below this level, the xTU-C shall
request that the xTU-R increase the xTU-R transmit power.
I… | column | 0.1 dB Unsigned32 | .1.3.6.1.2.1.10.251.1.5.1.2.1.21 |
| xdsl2LConfProfMsgMinUs Minimum Overhead Rate Upstream. Defines the minimum rate of
the message-based overhead that shall be maintained by the xTU in
upstream direction. Expressed in bits per second an… | column | bits/second Unsigned32 | .1.3.6.1.2.1.10.251.1.5.1.2.1.22 |
| xdsl2LConfProfMsgMinDs Minimum Overhead Rate Downstream. Defines the minimum rate
of the message-based overhead that shall be maintained by the xTU
in the downstream direction. Expressed in bits per s… | column | bits/second Unsigned32 | .1.3.6.1.2.1.10.251.1.5.1.2.1.23 |
| xdsl2LConfProfCeFlag This parameter is a bit that enables the use of the optional
cyclic extension values. | column | VDSL2-LINE-TC-MIBXdsl2LineCeFlag | .1.3.6.1.2.1.10.251.1.5.1.2.1.24 |
| xdsl2LConfProfSnrModeDs This parameter enables the transmitter-referred virtual
noise in the downstream direction. | column | VDSL2-LINE-TC-MIBXdsl2LineSnrMode | .1.3.6.1.2.1.10.251.1.5.1.2.1.25 |
| xdsl2LConfProfSnrModeUs This parameter enables the transmitter-referred virtual
noise in the upstream direction. | column | VDSL2-LINE-TC-MIBXdsl2LineSnrMode | .1.3.6.1.2.1.10.251.1.5.1.2.1.26 |
| xdsl2LConfProfTxRefVnDs This configuration parameter defines the downstream
transmitter-referred virtual noise.
The TXREFVNds shall be specified through a set of breakpoints.
Each breakpoint shall consis… | column | VDSL2-LINE-TC-MIBXdsl2LineTxRefVnDs | .1.3.6.1.2.1.10.251.1.5.1.2.1.27 |
| xdsl2LConfProfTxRefVnUs This configuration parameter defines the upstream
transmitter-referred virtual noise.
The TXREFVNus shall be specified through a set of breakpoints.
Each breakpoint shall consist … | column | VDSL2-LINE-TC-MIBXdsl2LineTxRefVnUs | .1.3.6.1.2.1.10.251.1.5.1.2.1.28 |
| xdsl2LConfProfXtuTransSysEna xTU Transmission System Enabling (XTSE). A list of the
different coding types enabled in this profile. It is coded in a
bitmap representation with 1 or more bits set. A bit set… | column | VDSL2-LINE-TC-MIBXdsl2TransmissionModeType | .1.3.6.1.2.1.10.251.1.5.1.2.1.29 |
| xdsl2LConfProfScMaskUs Subcarrier mask. A bitmap of 4096 bits that allows masking
up to 4096 upstream subcarriers. If bit i (0 <= i < NSCus)
is set to '1', the respective upstream subcarrier is
masked… | column | VDSL2-LINE-TC-MIBXdsl2ScMaskUs | .1.3.6.1.2.1.10.251.1.5.1.2.1.3 |
| xdsl2LConfProfPmMode Power management state Enabling (PMMode). Defines the power
states the xTU-C or xTU-R may autonomously transition to on
this line.
This is a set of bits, where any bit with a '1'… | column | VDSL2-LINE-TC-MIBXdsl2LinePmMode | .1.3.6.1.2.1.10.251.1.5.1.2.1.30 |
| xdsl2LConfProfL0Time The minimum time (in seconds) between an Exit from the L2
state and the next Entry into the L2 state.
It ranges from 0 to 255 seconds. | column | seconds Unsigned32 | .1.3.6.1.2.1.10.251.1.5.1.2.1.31 |
| xdsl2LConfProfL2Time The minimum time (in seconds) between an Entry into the
L2 state and the first Power Trim in the L2 state and between two
consecutive Power Trims in the L2 state.
It ranges from 0… | column | seconds Unsigned32 | .1.3.6.1.2.1.10.251.1.5.1.2.1.32 |
| xdsl2LConfProfL2Atpr The maximum aggregate transmit power reduction (in dB) that
can be performed at transition of L0 to L2 state or through a
single Power Trim in the L2 state.
It ranges from 0 dB to… | column | dB Unsigned32 | .1.3.6.1.2.1.10.251.1.5.1.2.1.33 |
| xdsl2LConfProfL2Atprt The total maximum aggregate transmit power reduction (in dB)
that can be performed in an L2 state. This is the sum of all
reductions of L2 Requests (i.e., at transition of L0 to … | column | dB Unsigned32 | .1.3.6.1.2.1.10.251.1.5.1.2.1.34 |
| xdsl2LConfProfProfiles The configuration parameter contains the G.993.2 profiles
to be allowed by the near-end xTU on this line.
It is coded in a bitmap representation (0 if not allowed, … | column | VDSL2-LINE-TC-MIBXdsl2LineProfiles | .1.3.6.1.2.1.10.251.1.5.1.2.1.35 |
| xdsl2LConfProfDpboEPsd This configuration parameter defines the PSD mask that is
assumed to be permitted at the exchange. This parameter shall
use the same format as xdsl2LConfProfPsdMaskDs (PSDMASKds)… | column | VDSL2-LINE-TC-MIBXdsl2PsdMaskDs | .1.3.6.1.2.1.10.251.1.5.1.2.1.36 |
| xdsl2LConfProfDpboEsEL This configuration parameter defines the assumed electrical
length of cables (E-side cables) connecting exchange-based DSL
services to a remote flexibility point (cabinet), that h… | column | 0.5 dB Unsigned32 | .1.3.6.1.2.1.10.251.1.5.1.2.1.37 |
| xdsl2LConfProfDpboEsCableModelA The E-side Cable Model parameter A (DPBOESCMA) of the cable
model (DPBOESCM) for cables connecting exchange-based DSL
services to a remote flexibility point (cabinet), that hosts … | column | 2^-8 Unsigned32 | .1.3.6.1.2.1.10.251.1.5.1.2.1.38 |
| xdsl2LConfProfDpboEsCableModelB The E-side Cable Model parameter B (DPBOESCMB) of the cable
model (DPBOESCM) for cables connecting exchange-based DSL
services to a remote flexibility point (cabinet), that hosts … | column | 2^-8 Unsigned32 | .1.3.6.1.2.1.10.251.1.5.1.2.1.39 |
| xdsl2LConfProfVdsl2CarMask VDSL2-specific subcarrier mask. This configuration
parameter defines the restrictions, additional to the band plan,
to determine the set of subcarriers allowed for transmission i… | column | VDSL2-LINE-TC-MIBXdsl2CarMask | .1.3.6.1.2.1.10.251.1.5.1.2.1.4 |
| xdsl2LConfProfDpboEsCableModelC The E-side Cable Model parameter C (DPBOESCMC) of the cable
model (DPBOESCM) for cables connecting exchange-based DSL
services to a remote flexibility point (cabinet), that hosts … | column | 2^-8 Unsigned32 | .1.3.6.1.2.1.10.251.1.5.1.2.1.40 |
| xdsl2LConfProfDpboMus This configuration parameter defines the assumed Minimum
Usable receive PSD mask (in dBm/Hz) for exchange-based services,
used to modify parameter xdsl2LConfProfDpboFMax (DPBOFMAX… | column | 0.5 dBm/Hz Unsigned32 | .1.3.6.1.2.1.10.251.1.5.1.2.1.41 |
| xdsl2LConfProfDpboFMin This configuration parameter defines the minimum frequency
from which the DPBO shall be applied. It ranges from 0 kHz
(coded as 0) to 8832 kHz (coded as 2048) in steps of
4.3125 … | column | 4.3125 kHz Unsigned32 | .1.3.6.1.2.1.10.251.1.5.1.2.1.42 |
| xdsl2LConfProfDpboFMax This configuration parameter defines the maximum frequency
at which DPBO may be applied. It ranges from 138 kHz (coded as
32) to 29997.75 kHz (coded as 6956) in steps of 4.3125 k… | column | 4.3125 kHz Unsigned32 | .1.3.6.1.2.1.10.251.1.5.1.2.1.43 |
| xdsl2LConfProfUpboKL This configuration parameter defines the electrical length
expressed in dB at 1 MHz, kl0, configured by the CO-MIB.
The value ranges from 0 (coded as 0) to 128 dB (coded as 1280) … | column | 0.1 dB Unsigned32 | .1.3.6.1.2.1.10.251.1.5.1.2.1.44 |
| xdsl2LConfProfUpboKLF Defines the upstream power backoff force mode. | column | VDSL2-LINE-TC-MIBXdsl2UpboKLF | .1.3.6.1.2.1.10.251.1.5.1.2.1.45 |
| xdsl2LConfProfUs0Mask The configuration parameter contains the US0 PSD masks to be
allowed by the near-end xTU on the line. This parameter is only
defined for G.993.2 Annex A. It is represented as a … | column | VDSL2-LINE-TC-MIBXdsl2LineUs0Mask | .1.3.6.1.2.1.10.251.1.5.1.2.1.46 |
| xdsl2LConfProfForceInp This parameter, when set to 'true' indicates that the framer
settings of the bearer shall be selected such that the impulse
noise protection computed according to the formula spec… | column | SNMPv2-TCTruthValue | .1.3.6.1.2.1.10.251.1.5.1.2.1.47 |
| xdsl2LConfProfRowStatus This object is used to create a new row or to modify or
delete an existing row in this table.
A profile is activated by setting this object to 'active'.
… | column | SNMPv2-TCRowStatus | .1.3.6.1.2.1.10.251.1.5.1.2.1.48 |
| xdsl2LConfProfRfiBands For ITU-T Recommendation G.992.5, this configuration
parameter defines
the subset of downstream PSD mask breakpoints, as specified in
xdsl2LConfProfPsdMaskDs (PSDMASKds), that sha… | column | VDSL2-LINE-TC-MIBXdsl2RfiBands | .1.3.6.1.2.1.10.251.1.5.1.2.1.5 |
| xdsl2LConfProfRaModeDs The mode of operation of a rate-adaptive xTU-C in the
transmit direction. | column | VDSL2-LINE-TC-MIBXdsl2RaMode | .1.3.6.1.2.1.10.251.1.5.1.2.1.6 |
| xdsl2LConfProfRaModeUs The mode of operation of a rate-adaptive xTU-R in the
transmit direction. | column | VDSL2-LINE-TC-MIBXdsl2RaMode | .1.3.6.1.2.1.10.251.1.5.1.2.1.7 |
| xdsl2LConfProfRaUsNrmDs The Downstream Up-Shift Noise Margin value, to be used when
xdsl2LConfProfRaModeDs is set to 'dynamicRa'. If the downstream
noise margin is above this value, and stays above it,
… | column | 0.1 dB Unsigned32 | .1.3.6.1.2.1.10.251.1.5.1.2.1.8 |
| xdsl2LConfProfRaUsNrmUs The Upstream Up-Shift Noise Margin value, to be used when
xdsl2LConfProfRaModeUs is set to 'dynamicRa'. If the upstream
noise margin is above this value, and stays above it,
for … | column | 0.1 dB Unsigned32 | .1.3.6.1.2.1.10.251.1.5.1.2.1.9 |