All MIBs › RDN-CMTS-MIB › rdnIfCmtsUpChCtrReqNoise
rdnIfCmtsUpChCtrReqNoise
Module: RDN-CMTS-MIB
OID (symbolic): RDN-CMTS-MIB::rdnIfCmtsUpChCtrReqNoise
OID (numeric): 1.3.6.1.4.1.4981.2.2.28.1.1
Node type: OBJECT-TYPE
Type: Counter32
Access: read-only
Description: Current count, from CMTS initialization, of contention request mini-slots subjected to Noise on this upstream logical channel. This includes all contention mini-slots for IUC1 applicable to bursts that the CMTS detected but found as noisy. Discontinuities in the value of this counter can occur at reinitialization of the managed system, and at other times as indicated by the value of ifCounterDiscontinuityTime for the associated ifIndex.
What is rdnIfCmtsUpChCtrReqNoise?
Read-only Counter32, counted since CMTS initialization, of contention request mini-slots (IUC1 bursts) that the CMTS detected but classified as noisy on this upstream logical channel; per the DESCRIPTION, discontinuities can occur at system reinit, flagged via ifCounterDiscontinuityTime. A climbing noise count points to RF interference or plant noise affecting contention-based ranging/bandwidth requests on that upstream.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.4981.2.2.28.1.1 snmpwalk -v2c -c public <target> RDN-CMTS-MIB::rdnIfCmtsUpChCtrReqNoise
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.4981.2.2.28.1.1.1 snmpget -v2c -c public <target> RDN-CMTS-MIB::rdnIfCmtsUpChCtrReqNoise.1
Start monitoring Motorola CMTS platforms (upstream/downstream channel config, cable-modem registration/reset) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the RDN-CMTS-MIB::rdnIfCmtsUpChCtrReqNoise OID value, configure state conditions and alerts, and monitor any Motorola CMTS platforms (upstream/downstream channel config, cable-modem registration/reset) from a single console.
OID Breakdown
Upper-level ancestors (7 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 |
| 1.3.6.1.4.1.4981 | riverdelta | RDN-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.4981.2 | rdnCmtsMib | RDN-CMTS-MIB |
| 1.3.6.1.4.1.4981.2.2 | rdnCmtsMiscObjects | RDN-CMTS-MIB |
| 1.3.6.1.4.1.4981.2.2.28 | rdnCmtsUpChannelCounterTable | RDN-CMTS-MIB |
| 1.3.6.1.4.1.4981.2.2.28.1 | rdnCmtsUpChannelCounterEntry | RDN-CMTS-MIB |
| 1.3.6.1.4.1.4981.2.2.28.1.1 | rdnIfCmtsUpChCtrReqNoise | RDN-CMTS-MIB |