All MIBs › EFM-COMMON-MIB › dot3OamUniqueEventNotificationRx
dot3OamUniqueEventNotificationRx
Module: EFM-COMMON-MIB
OID (symbolic): EFM-COMMON-MIB::dot3OamUniqueEventNotificationRx
OID (numeric): 1.3.6.1.2.1.9908.1.4.1.4
Node type: OBJECT-TYPE
Type: Counter32
Access: read-only
Description: A count of the number of unique Event OAMPDUs received on this interface. Event notification OAMPDUs may be sent in duplicate to increase the probability of successfully being received, given the possiblity that a frame may be lost in transit.
An Event Notification OAMPDU is indicated by a valid frame with (1) destination MAC address equal to that of the reserved MAC address for Slow Protocols (See 43B of [802.3ah]), (2) a lengthOrType field equal to the reserved type for Slow Protocols, (3) a Slow Protocols subtype equal to that of the subtype reserved for OAM, and (4) an OAMPDU code equals the OAM Event code.
A unique Event Notification OAMPDU is indicated as an Event Notification OAMPDU with a Sequence Number field that is distinct from the previously received Event Notification
OAMPDU Sequence Number.
Discontinuities of this counter can occur at re-initialization of the management system, and at other times as indicated by the value of the ifCounterDiscontinuityTime.
What is dot3OamUniqueEventNotificationRx?
A count of distinct (non-duplicate) Event Notification OAM PDUs received on this interface, i.e. ones whose sequence number differs from the last one received — a rising count here reflects real link events reported by the peer.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.2.1.9908.1.4.1.4 snmpwalk -v2c -c public <target> EFM-COMMON-MIB::dot3OamUniqueEventNotificationRx
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.2.1.9908.1.4.1.4.1 snmpget -v2c -c public <target> EFM-COMMON-MIB::dot3OamUniqueEventNotificationRx.1
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OID Breakdown
Upper-level ancestors (6 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 | APERTUS-NPG-MIB |
| 1.3.6.1.2.1 | mib_2 | AXON-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.2.1.9908 | efmOamMIB | EFM-COMMON-MIB |
| 1.3.6.1.2.1.9908.1 | dot3OamMIB | EFM-COMMON-MIB |
| 1.3.6.1.2.1.9908.1.4 | dot3OamStatsTable | EFM-COMMON-MIB |
| 1.3.6.1.2.1.9908.1.4.1 | dot3OamStatsEntry | EFM-COMMON-MIB |
| 1.3.6.1.2.1.9908.1.4.1.4 | dot3OamUniqueEventNotificationRx | EFM-COMMON-MIB |