All MIBs › DOCS-IF31-MIB › docsIf31CmUsOfdmaChanTxPower
docsIf31CmUsOfdmaChanTxPower
Module: DOCS-IF31-MIB
OID (symbolic): DOCS-IF31-MIB::docsIf31CmUsOfdmaChanTxPower
OID (numeric): 1.3.6.1.4.1.4491.2.1.28.1.13.1.10
Node type: OBJECT-TYPE
Type: Unsigned32
Access: read-only
Description: This attribute represents the operational transmit power for the associated OFDMA upstream channel.The CM reports its Target Power, P1.6r_n as described in [PHYv3.1]. Valid values for this object are 68 to (213 + (4*(Pmax - 65 dBmV))), since 68 quarter dBmV represents the lowest Tx power value 17 dBmV and 213 represents the nearest quarter dBmV to the highest Tx power value 53.2 dBmV.
What is docsIf31CmUsOfdmaChanTxPower?
Reports, in quarter-dBmV units, the modem's operational transmit power (its reported Target Power, P1.6r_n) on this OFDMA upstream channel; valid values run from 68 (17 dBmV, the lowest allowed Tx power) up to a maximum tied to the modem's Pmax capability, topping out near 213 (about 53.2 dBmV). Admins use this to check whether a modem is transmitting near the top of its allowed power range, which is a classic early warning sign of a weak upstream plant segment that may need attention before the modem loses the ability to compensate further.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.4491.2.1.28.1.13.1.10 snmpwalk -v2c -c public <target> DOCS-IF31-MIB::docsIf31CmUsOfdmaChanTxPower
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.4491.2.1.28.1.13.1.10.1 snmpget -v2c -c public <target> DOCS-IF31-MIB::docsIf31CmUsOfdmaChanTxPower.1
Start monitoring DOCSIS 3.1 cable modem/CMTS-CCAP (OFDM/OFDMA channels, vendor-neutral CableLabs standard) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the DOCS-IF31-MIB::docsIf31CmUsOfdmaChanTxPower OID value, configure state conditions and alerts, and monitor any DOCSIS 3.1 cable modem/CMTS-CCAP (OFDM/OFDMA channels, vendor-neutral CableLabs standard) from a single console.
OID Breakdown
Upper-level ancestors (9 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 |
| 1.3.6.1.4 | private | AirPair-MIB |
| 1.3.6.1.4.1 | enterprises | AirPair-MIB |
| 1.3.6.1.4.1.4491 | cableLabs | CLAB-DEF-MIB |
| 1.3.6.1.4.1.4491.2 | clabProject | CLAB-DEF-MIB |
| 1.3.6.1.4.1.4491.2.1 | clabProjDocsis | CLAB-DEF-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.4491.2.1.28 | docsIf31Mib | DOCS-IF31-MIB |
| 1.3.6.1.4.1.4491.2.1.28.1 | docsIf31MibObjects | DOCS-IF31-MIB |
| 1.3.6.1.4.1.4491.2.1.28.1.13 | docsIf31CmUsOfdmaChanTable | DOCS-IF31-MIB |
| 1.3.6.1.4.1.4491.2.1.28.1.13.1 | docsIf31CmUsOfdmaChanEntry | DOCS-IF31-MIB |
| 1.3.6.1.4.1.4491.2.1.28.1.13.1.10 | docsIf31CmUsOfdmaChanTxPower | DOCS-IF31-MIB |