All MIBs › ADSL2-LINE-MIB › adsl2SCStatusTssi
adsl2SCStatusTssi
Module: ADSL2-LINE-MIB
OID (symbolic): ADSL2-LINE-MIB::adsl2SCStatusTssi
OID (numeric): 1.3.6.1.2.1.10.238.1.2.2.1.6
Node type: OBJECT-TYPE
Type: Adsl2Tssi
Access: read-only
Description: The transmit spectrum shaping (TSSi) breakpoints expressed as the set of breakpoints exchanged during G.994.1. Each breakpoint is a pair of values occupying 3 octets with the following structure: First 2 octets - Index of the subcarrier used in the context of
the breakpoint. Third octet - The shaping parameter at the breakpoint. Subcarrier index is an unsigned number in the range 1 to either NSCds (downstream direction) or NSCus (upstream direction). The shaping parameter value is in the range 0 to 127 (units of -0.5dB). The special value 127 indicates that the subcarrier is not transmitted.
What is adsl2SCStatusTssi?
This OID stores transmit spectrum shaping breakpoints negotiated during handshake, as pairs of subcarrier indices and power values, defining how the modem masks its transmitted spectrum to avoid interference. Engineers examine this to verify compliance with regulation (FCC masks, ETSI masks) and to detect misconfiguration in spectrum shaping. Breakpoints at subcarrier 64 with shaping value 150 tell the modem to start rolling off power at that frequency.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.2.1.10.238.1.2.2.1.6 snmpwalk -v2c -c public <target> ADSL2-LINE-MIB::adsl2SCStatusTssi
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.2.1.10.238.1.2.2.1.6.1 snmpget -v2c -c public <target> ADSL2-LINE-MIB::adsl2SCStatusTssi.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 |
| 1.3.6.1.2.1.10.238.1.2.2.1.6 | adsl2SCStatusTssi | ADSL2-LINE-MIB |