All MIBs › ADSL2-LINE-MIB › adsl2SCStatusBitsAlloc
adsl2SCStatusBitsAlloc
Module: ADSL2-LINE-MIB
OID (symbolic): ADSL2-LINE-MIB::adsl2SCStatusBitsAlloc
OID (numeric): 1.3.6.1.2.1.10.238.1.2.2.1.4
Node type: OBJECT-TYPE
Type: OCTET STRING
Access: read-only
Description: 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 downstream direction depends on NSCds, and on upstream direction it depends on NSCus. This value is referred to here as NSC. Nibble i (0 <= i < NSC) is set to a value in the range 0 to 15 to indicate that the respective downstream or upstream sub-carrier i has the same amount of bits allocation.
What is adsl2SCStatusBitsAlloc?
This OID is a nibble-per-subcarrier array showing how many data bits are allocated to each carrier (0–15 bits), allowing ADSL to adapt transmission to line quality. Engineers review this to see which frequencies the modem trusts (high bit counts) and which it avoids (low or zero counts), revealing areas of line impairment. A carrier with 12 bits allocated can send data reliably; one with 0 bits is disabled due to noise or attenuation.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.2.1.10.238.1.2.2.1.4 snmpwalk -v2c -c public <target> ADSL2-LINE-MIB::adsl2SCStatusBitsAlloc
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.2.1.10.238.1.2.2.1.4.1 snmpget -v2c -c public <target> ADSL2-LINE-MIB::adsl2SCStatusBitsAlloc.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 |
| 1.3.6.1.2.1.10.238.1.2.2.1.4 | adsl2SCStatusBitsAlloc | ADSL2-LINE-MIB |