docsIf3CmtsSignalQualityExtCNIR
DOCS-IF3-MIB ·
.1.3.6.1.4.1.4491.2.1.20.1.25.1.1
Object
column DOCS-IF-MIBTenthdB
This attribute provides an upstream in-channel Carrier-to-Noise plus Interference Ratio (CNIR). CNIR is defined as the ratio of the expected commanded received signal power at the CMTS input, assuming QPSK0 modulation, to the noise plus interference in the channel. This measurement occurs prior to the point at which the desired CM signal, when present, is demodulated. The measurement includes the effect of the receive matched filter but does not include the effect of any ingress filtering. Both the signal power and noise/interference power are referenced to the same point, e.g., CMTS input.
Context
- MIB
- DOCS-IF3-MIB
- OID
.1.3.6.1.4.1.4491.2.1.20.1.25.1.1- Type
- column
- Access
- readonly
- Status
- current
- Parent
- docsIf3CmtsSignalQualityExtEntry
- Groups
- 1
Net-SNMP examples
How SNMP and these commands workWalk the column to discover its indexed instances, or supply every index to read one instance.
Walk the column
/usr/bin/snmpbulkwalk -v2c -c '<community>' -Pud -Ir -OQUs -m 'DOCS-IF3-MIB' -M '/opt/observium/mibs/rfc:/opt/observium/mibs/net-snmp' 'udp:<hostname>:161' 'DOCS-IF3-MIB::docsIf3CmtsSignalQualityExtCNIR'
More examples
Read one indexed instance
/usr/bin/snmpget -v2c -c '<community>' -Pud -Ir -OQUv -m 'DOCS-IF3-MIB' -M '/opt/observium/mibs/rfc:/opt/observium/mibs/net-snmp' 'udp:<hostname>:161' 'DOCS-IF3-MIB::docsIf3CmtsSignalQualityExtCNIR.<ifIndex>'
Translate to a numeric OID
/usr/bin/snmptranslate -Pud -Ir -On -m 'DOCS-IF3-MIB' -M '/opt/observium/mibs/rfc:/opt/observium/mibs/net-snmp' 'DOCS-IF3-MIB::docsIf3CmtsSignalQualityExtCNIR'
Syntax
- Source
- DOCS-IF-MIBTenthdB
- Base type
Integer32
Values & Constraints
No enumerated values or constraints recorded.
Conformance
Member of