All MIBs › DOCS-IF3-MIB › docsIf3CmStatusInvalidUcds
docsIf3CmStatusInvalidUcds
Module: DOCS-IF3-MIB
OID (symbolic): DOCS-IF3-MIB::docsIf3CmStatusInvalidUcds
OID (numeric): 1.3.6.1.4.1.4491.2.1.20.1.1.1.6
Node type: OBJECT-TYPE
Type: Counter32
Access: read-only
Description: This attribute denotes the number of times the CM received invalid UCD messages. Discontinuities in the value of this counter can occur at re-initialization of the managed system, and at other times as indicated by the value of ifCounterDiscontinuityTime for the CM MAC Domain interface.
What is docsIf3CmStatusInvalidUcds?
This counter tracks how many times a cable modem received an invalid Upstream Channel Descriptor (UCD) message from the CMTS during the initialization or maintenance process. Invalid UCDs usually indicate corrupted frames or protocol violations that could prevent proper channel configuration. Network operators monitor this counter to detect CMTS or modem firmware problems.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.4491.2.1.20.1.1.1.6 snmpwalk -v2c -c public <target> DOCS-IF3-MIB::docsIf3CmStatusInvalidUcds
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.4491.2.1.20.1.1.1.6.1 snmpget -v2c -c public <target> DOCS-IF3-MIB::docsIf3CmStatusInvalidUcds.1
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OID Breakdown
Upper-level ancestors (10 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 |
| 1.3.6.1.4.1.4491.2.1.20 | docsIf3Mib | CLAB-DEF-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.4491.2.1.20.1 | docsIf3MibObjects | DOCS-IF3-MIB |
| 1.3.6.1.4.1.4491.2.1.20.1.1 | docsIf3CmStatusTable | DOCS-IF3-MIB |
| 1.3.6.1.4.1.4491.2.1.20.1.1.1 | docsIf3CmStatusEntry | DOCS-IF3-MIB |
| 1.3.6.1.4.1.4491.2.1.20.1.1.1.6 | docsIf3CmStatusInvalidUcds | DOCS-IF3-MIB |