All MIBs › VDSL2-LINE-MIB › xdsl2LConfProfTxRefVnDs
xdsl2LConfProfTxRefVnDs
Module: VDSL2-LINE-MIB
OID (symbolic): VDSL2-LINE-MIB::xdsl2LConfProfTxRefVnDs
OID (numeric): 1.3.6.1.2.1.10.251.1.5.1.2.1.27
Node type: OBJECT-TYPE
Type: Xdsl2LineTxRefVnDs
Access: read-create
Description: This configuration parameter defines the downstream transmitter-referred virtual noise. The TXREFVNds shall be specified through a set of breakpoints. Each breakpoint shall consist of a subcarrier index t, with a subcarrier spacing of 4.3125 kHz, and a noise PSD level (expressed in dBm/Hz) at that subcarrier. The set of breakpoints can then be represented as: [(t1,PSD1), (t2, PSD2), ... , (tN, PSDN)].
What is xdsl2LConfProfTxRefVnDs?
Defines the downstream transmitter-referred virtual noise curve as a set of (subcarrier-index, noise-PSD) breakpoints, used when xdsl2LConfProfSnrModeDs enables virtual noise. An operator shapes this curve to model a realistic worst-case downstream noise environment (e.g. accounting for crosstalk from other pairs in the same binder) so the line trains conservatively against it.
OID Breakdown
Upper-level ancestors (7 from the standard OID tree / other modules)
| Numeric OID | Name | Module |
|---|---|---|
| 1 | iso | LANART-AGENT |
| 1.3 | org | AirPair-MIB |
| 1.3.6 | dod | AirPair-MIB |
| 1.3.6.1 | internet | AirPair-MIB |
| 1.3.6.1.2 | mgmt | APERTUS-NPG-MIB |
| 1.3.6.1.2.1 | mib_2 | AXON-MIB |
| 1.3.6.1.2.1.10 | transmission | CHECKPOINT-MIB-2 |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.2.1.10.251 | vdsl2MIB | VDSL2-LINE-MIB |
| 1.3.6.1.2.1.10.251.1 | xdsl2Objects | VDSL2-LINE-MIB |
| 1.3.6.1.2.1.10.251.1.5 | xdsl2Profile | VDSL2-LINE-MIB |
| 1.3.6.1.2.1.10.251.1.5.1 | xdsl2ProfileLine | VDSL2-LINE-MIB |
| 1.3.6.1.2.1.10.251.1.5.1.2 | xdsl2LineConfProfTable | VDSL2-LINE-MIB |
| 1.3.6.1.2.1.10.251.1.5.1.2.1 | xdsl2LineConfProfEntry | VDSL2-LINE-MIB |
| 1.3.6.1.2.1.10.251.1.5.1.2.1.27 | xdsl2LConfProfTxRefVnDs | VDSL2-LINE-MIB |