ccwbRFChannelModulation

CISCO-CABLE-WIDEBAND-MIB · .1.3.6.1.4.1.9.9.479.1.1.1.4
Commands MIB view Table view

Object

column r/w Enumeration 
The modulation type associated with this downstream RF
channel. See the associated conformance object for write
conditions an limitations. See the DOCSIS specification
for specifics on the modulation profiles implied by qam64
qam256 and qam1024.
qam64, qam256 and qam1024 are various modulation schemes
often used in digital cable and cable modem applications.
The numbers 64/256/1024 in qam represent constellation
points, which is the measurement of qam transmission
capability, the higher the number, higher the bits that
can be transmitted.

Context

MIB
CISCO-CABLE-WIDEBAND-MIB
OID
.1.3.6.1.4.1.9.9.479.1.1.1.4
Type
column
Access
readwrite
Status
current
Parent
ccwbRFChannelEntry
Groups
2

Net-SNMP examples

How SNMP and these commands work

Walk 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 'CISCO-CABLE-WIDEBAND-MIB' -M '/opt/observium/mibs/cisco:/opt/observium/mibs/rfc:/opt/observium/mibs/net-snmp' 'udp:<hostname>:161' 'CISCO-CABLE-WIDEBAND-MIB::ccwbRFChannelModulation'
More examples
Read one indexed instance
/usr/bin/snmpget -v2c -c '<community>' -Pud -Ir -OQUv -m 'CISCO-CABLE-WIDEBAND-MIB' -M '/opt/observium/mibs/cisco:/opt/observium/mibs/rfc:/opt/observium/mibs/net-snmp' 'udp:<hostname>:161' 'CISCO-CABLE-WIDEBAND-MIB::ccwbRFChannelModulation.<entPhysicalIndex>.<ccwbRFChannelNum>'
Translate to a numeric OID
/usr/bin/snmptranslate -Pud -Ir -On -m 'CISCO-CABLE-WIDEBAND-MIB' -M '/opt/observium/mibs/cisco:/opt/observium/mibs/rfc:/opt/observium/mibs/net-snmp' 'CISCO-CABLE-WIDEBAND-MIB::ccwbRFChannelModulation'

Syntax

Enumeration

Values & Constraints

Enumerated Values
1qam64
2qam256
3qam1024

Conformance

Member of
ccwbWidebandObjGroup ccwbWidebandObjGroupRev1
Compliance refinements
ciscoCableWidebandMIBCompliance readonly
Currently the value of this object must be the same for
all RF channels.
ciscoCableWidebandMIBComplianceRev1 readonly
Currently the value of this object must be the same for
all RF channels.
ciscoCableWidebandMIBComplianceRev2 readonly
Write access is not required.

Currently the value of this object must be the same for
all RF channels.
ciscoCableWidebandMIBComplianceRev3 readonly
Write access is not required.

Currently the value of this object must be the same for
all RF channels.