All MIBs › VDSL2-LINE-MIB › xdsl2SCStatusSegmentBitsAlloc
xdsl2SCStatusSegmentBitsAlloc
Module: VDSL2-LINE-MIB
OID (symbolic): VDSL2-LINE-MIB::xdsl2SCStatusSegmentBitsAlloc
OID (numeric): 1.3.6.1.2.1.10.251.1.2.5.1.7
Node type: OBJECT-TYPE
Type: Xdsl2BitsAlloc
Access: read-only
Description: The bits allocation per subcarrier. An array of 256 octets (512 nibbles) designed for supporting up to 512 (downstream)
subcarriers. When more than 512 subcarriers are supported, the status information is reported through multiple (up to 8) segments. The first segment is then used for the first 512 subcarriers. The second segment is used for the subcarriers 512 to 1023 and so on. The aggregate number of utilized nibbles in the downstream direction (in all segments) depends on NSds; in the upstream direction, it depends on NSus. This value is referred to here as NS. The segment number is in xdsl2SCStatusSegment. Nibble i (0 <= i < MIN((NS+1)-(segment-1)*512,512)) in each segment is set to a value in the range 0 to 15 to indicate that the respective downstream or upstream subcarrier j (j=(segement-1)*512+i) has the same amount of bits allocation.
What is xdsl2SCStatusSegmentBitsAlloc?
This object contains bit allocation information per subcarrier for a segment of subcarriers in a VDSL2 line, represented as an array of 256 octets supporting up to 512 subcarriers. The bit allocation determines how many bits each subcarrier can carry, with more bits assigned to better-quality subcarriers. VDSL technicians use this to analyze frequency response and verify that the modulation profile is optimal for the line conditions.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.2.1.10.251.1.2.5.1.7 snmpwalk -v2c -c public <target> VDSL2-LINE-MIB::xdsl2SCStatusSegmentBitsAlloc
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.2.1.10.251.1.2.5.1.7.1 snmpget -v2c -c public <target> VDSL2-LINE-MIB::xdsl2SCStatusSegmentBitsAlloc.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 |
|---|---|---|
| 1.3.6.1.2.1.10.251 | vdsl2MIB | VDSL2-LINE-MIB |
| 1.3.6.1.2.1.10.251.1 | xdsl2Objects | VDSL2-LINE-MIB |
| 1.3.6.1.2.1.10.251.1.2 | xdsl2Status | VDSL2-LINE-MIB |
| 1.3.6.1.2.1.10.251.1.2.5 | xdsl2SCStatusSegmentTable | VDSL2-LINE-MIB |
| 1.3.6.1.2.1.10.251.1.2.5.1 | xdsl2SCStatusSegmentEntry | VDSL2-LINE-MIB |
| 1.3.6.1.2.1.10.251.1.2.5.1.7 | xdsl2SCStatusSegmentBitsAlloc | VDSL2-LINE-MIB |