All MIBs › ADSL2-LINE-MIB › adsl2SCStatusLinImg
adsl2SCStatusLinImg
Module: ADSL2-LINE-MIB
OID (symbolic): ADSL2-LINE-MIB::adsl2SCStatusLinImg
OID (numeric): 1.3.6.1.2.1.10.238.1.2.2.1.9
Node type: OBJECT-TYPE
Type: OCTET STRING
Access: read-only
Description: 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-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 imaginary component [referred to here as b(i)] of Hlin(f = i*Df) value for a particular sub- carrier index i (0 <= i < NSC). Hlin(f) is represented as ((scale/2^15)*((a(i)+j*b(i))/2^15)), where scale is Adsl2SubcarrierLinScale and a(i) [provided by the Adsl2SubcarrierLinReal object] and b(i) are in the range (-2^15+1) to (+2^15-1). A special value a(i)=b(i)= -2^15 indicates that no measurement could be done for the subcarrier because it is out of the passband or that the attenuation is out of range to be represented. This parameter is only available after a loop diagnostic procedure. Each value in this array is 16 bits wide and is stored in big endian format.
What is adsl2SCStatusLinImg?
This array contains up to 512 imaginary components of the H(f) complex channel frequency response, one value per sub-carrier, representing the phase shift or reactance properties of the line. Engineers combine the imaginary components with real components to calculate the complete complex impedance and phase response of each frequency point. Example: real=0x0F, imaginary=0x08 at sub-carrier 0 represents one complex number on the frequency response plot showing both magnitude and phase.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.2.1.10.238.1.2.2.1.9 snmpwalk -v2c -c public <target> ADSL2-LINE-MIB::adsl2SCStatusLinImg
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.2.1.10.238.1.2.2.1.9.1 snmpget -v2c -c public <target> ADSL2-LINE-MIB::adsl2SCStatusLinImg.1
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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 | AXON-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 |
|---|---|---|
| 1.3.6.1.2.1.10.238 | adsl2MIB | ADSL2-LINE-MIB |
| 1.3.6.1.2.1.10.238.1 | adsl2 | ADSL2-LINE-MIB |
| 1.3.6.1.2.1.10.238.1.2 | adsl2Status | ADSL2-LINE-MIB |
| 1.3.6.1.2.1.10.238.1.2.2 | adsl2SCStatusTable | ADSL2-LINE-MIB |
| 1.3.6.1.2.1.10.238.1.2.2.1 | adsl2SCStatusEntry | ADSL2-LINE-MIB |
| 1.3.6.1.2.1.10.238.1.2.2.1.9 | adsl2SCStatusLinImg | ADSL2-LINE-MIB |