All MIBs › RMON-MIB › etherHistoryCRCAlignErrors
etherHistoryCRCAlignErrors
Module: RMON-MIB
OID (symbolic): RMON-MIB::etherHistoryCRCAlignErrors
OID (numeric): 1.3.6.1.2.1.16.2.2.1.9
Node type: OBJECT-TYPE
Type: Counter32
Access: read-only
Description: The number of packets received during this sampling interval that had a length (excluding framing bits but including FCS octets) between 64 and 1518 octets, inclusive, but had either a bad Frame Check Sequence (FCS) with an integral number of octets (FCS Error) or a bad FCS with a non-integral number of octets (Alignment Error).
What is etherHistoryCRCAlignErrors?
This counter measures Ethernet frames with Cyclic Redundancy Check (CRC) errors or frame alignment errors that were received in the current sampling interval. An operator analyzing link quality would examine this metric to detect physical layer issues such as electrical noise, cabling problems, or duplex mismatches.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.2.1.16.2.2.1.9 snmpwalk -v2c -c public <target> RMON-MIB::etherHistoryCRCAlignErrors
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.2.1.16.2.2.1.9.1 snmpget -v2c -c public <target> RMON-MIB::etherHistoryCRCAlignErrors.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 |
| 1.3.6.1.2 | mgmt | AXON-MIB |
| 1.3.6.1.2.1 | mib_2 | AXON-MIB |
| 1.3.6.1.2.1.16 | rmon | LBHUB-BOOM-MIB |
| 1.3.6.1.2.1.16.2 | history | LBHUB-BOOM-MIB |
| 1.3.6.1.2.1.16.2.2 | etherHistoryTable | RFC1271-MIB |
| 1.3.6.1.2.1.16.2.2.1 | etherHistoryEntry | RFC1271-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.2.1.16.2.2.1.9 | etherHistoryCRCAlignErrors | RMON-MIB |