All MIBs › DOCS-IF31-MIB › docsIf31CmDsOfdmChanNcpFieldCrcFailures
docsIf31CmDsOfdmChanNcpFieldCrcFailures
Module: DOCS-IF31-MIB
OID (symbolic): DOCS-IF31-MIB::docsIf31CmDsOfdmChanNcpFieldCrcFailures
OID (numeric): 1.3.6.1.4.1.4491.2.1.28.1.9.1.16
Node type: OBJECT-TYPE
Type: Counter64
Access: read-only
Description: This attribute represents the total number of NCP fields received by the CM which failed the CRC check.
What is docsIf31CmDsOfdmChanNcpFieldCrcFailures?
A 64-bit counter of NCP (Next Codeword Pointer) fields received by the modem on this downstream OFDM channel that failed their CRC check. A rising failure rate here means the modem is losing track of where MAC frames start in the OFDM stream, which can cause data loss or reduced throughput even if the underlying codewords themselves are fine, making this a useful early indicator of downstream signal degradation.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.4491.2.1.28.1.9.1.16 snmpwalk -v2c -c public <target> DOCS-IF31-MIB::docsIf31CmDsOfdmChanNcpFieldCrcFailures
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.4491.2.1.28.1.9.1.16.1 snmpget -v2c -c public <target> DOCS-IF31-MIB::docsIf31CmDsOfdmChanNcpFieldCrcFailures.1
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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 |
| 1.3.6.1.4.1.4491.2.1.28.1.9 | docsIf31CmDsOfdmChanTable | DOCS-IF31-MIB |
| 1.3.6.1.4.1.4491.2.1.28.1.9.1 | docsIf31CmDsOfdmChanEntry | DOCS-IF31-MIB |
| 1.3.6.1.4.1.4491.2.1.28.1.9.1.16 | docsIf31CmDsOfdmChanNcpFieldCrcFailures | DOCS-IF31-MIB |