All MIBs › CISCO-CABLE-SPECTRUM-MIB › ccsFlapCrcErrors
ccsFlapCrcErrors
Module: CISCO-CABLE-SPECTRUM-MIB
OID (symbolic): CISCO-CABLE-SPECTRUM-MIB::ccsFlapCrcErrors
OID (numeric): 1.3.6.1.4.1.9.9.114.1.1.5.1.7
Node type: OBJECT-TYPE
Type: Counter32
Access: read-only
Description: The number of times the CMTS upstream receiver flagged a packet with a CRC error.
If ccsFlapCrcErrors is high, it indicates the cable upstream may have high noise level. The modem may not be flapping yet but it may be a potential problem.
This count can indicate: Intermittent upstream, Laser clipping, or Noise bursts.
Laser clipping can happen if the signal power is too high when the upstream electrical signal is converted to an optical signal. When it happens the more input produces less output, until finally there is no more increase in output. This phenomena is called laser clipping. Discontinuites in the value of this counter can occur if this entry is removed from the table and then re-added, and are indicated by a change in the value of ccsFlapCreateTime.
What is ccsFlapCrcErrors?
Read-only counter of upstream packets flagged with CRC errors from this cable modem; a high value suggests elevated upstream noise that may lead to future flapping problems.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.9.9.114.1.1.5.1.7 snmpwalk -v2c -c public <target> CISCO-CABLE-SPECTRUM-MIB::ccsFlapCrcErrors
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.9.9.114.1.1.5.1.7.1 snmpget -v2c -c public <target> CISCO-CABLE-SPECTRUM-MIB::ccsFlapCrcErrors.1
Start monitoring Cisco CMTS (Cable Modem Termination System) platforms with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the CISCO-CABLE-SPECTRUM-MIB::ccsFlapCrcErrors OID value, configure state conditions and alerts, and monitor any Cisco CMTS (Cable Modem Termination System) platforms from a single console.
OID Breakdown
Upper-level ancestors (8 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 |
| 1.3.6.1.4.1.9 | cisco | CAT2600-MIB |
| 1.3.6.1.4.1.9.9 | ciscoMgmt | CISCO-SMI |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.9.9.114 | ciscoCableSpectrumMIB | CISCO-CABLE-SPECTRUM-MIB |
| 1.3.6.1.4.1.9.9.114.1 | ciscoCableSpectrumMIBObjects | CISCO-CABLE-SPECTRUM-MIB |
| 1.3.6.1.4.1.9.9.114.1.1 | ccsFlapObjects | CISCO-CABLE-SPECTRUM-MIB |
| 1.3.6.1.4.1.9.9.114.1.1.5 | ccsFlapTable | CISCO-CABLE-SPECTRUM-MIB |
| 1.3.6.1.4.1.9.9.114.1.1.5.1 | ccsFlapEntry | CISCO-CABLE-SPECTRUM-MIB |
| 1.3.6.1.4.1.9.9.114.1.1.5.1.7 | ccsFlapCrcErrors | CISCO-CABLE-SPECTRUM-MIB |