All MIBs › HPN-ICF-EFM-COMMON-MIB › hpnicfDot3OamDuplicateEventNotificationTx
hpnicfDot3OamDuplicateEventNotificationTx
Module: HPN-ICF-EFM-COMMON-MIB
OID (symbolic): HPN-ICF-EFM-COMMON-MIB::hpnicfDot3OamDuplicateEventNotificationTx
OID (numeric): 1.3.6.1.4.1.11.2.14.11.15.2.42.3.1.4.1.5
Node type: OBJECT-TYPE
Type: Counter32
Access: read-only
Description: A count of the number of duplicate Event OAMPDUs transmitted 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 duplicate Event Notification OAMPDU is indicated as an Event Notification OAMPDU with a Sequence Number field that is identical to the previously transmitted 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 hpnicfDot3OamDuplicateEventNotificationTx?
This counts duplicate Event OAMPDUs transmitted on this interface, i.e. retransmissions carrying the same sequence number as the previous one sent, used to raise the odds an event notification survives frame loss. Admins seeing an unusually high ratio of duplicates to unique events might investigate frame-loss or link-quality issues on the segment.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.11.2.14.11.15.2.42.3.1.4.1.5 snmpwalk -v2c -c public <target> HPN-ICF-EFM-COMMON-MIB::hpnicfDot3OamDuplicateEventNotificationTx
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.11.2.14.11.15.2.42.3.1.4.1.5.1 snmpget -v2c -c public <target> HPN-ICF-EFM-COMMON-MIB::hpnicfDot3OamDuplicateEventNotificationTx.1
Start monitoring HP/H3C Comware switch or router (802.3ah Ethernet OAM, first-mile link) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the HPN-ICF-EFM-COMMON-MIB::hpnicfDot3OamDuplicateEventNotificationTx OID value, configure state conditions and alerts, and monitor any HP/H3C Comware switch or router (802.3ah Ethernet OAM, first-mile link) from a single console.
OID Breakdown
Upper-level ancestors (13 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 |
| 1.3.6.1.4.1.11 | hp | CLJ8500-MIB |
| 1.3.6.1.4.1.11.2 | nm | CLJ8500-MIB |
| 1.3.6.1.4.1.11.2.14 | icf | CONFIG-MIB |
| 1.3.6.1.4.1.11.2.14.11 | hpicfObjects | CONFIG-MIB |
| 1.3.6.1.4.1.11.2.14.11.15 | hpnicf | HPN-ICF-OID-MIB |
| 1.3.6.1.4.1.11.2.14.11.15.2 | hpnicfCommon | HPN-ICF-OID-MIB |
| 1.3.6.1.4.1.11.2.14.11.15.2.42 | hpnicfEpon | HPN-ICF-OID-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.11.2.14.11.15.2.42.3 | hpnicfEfmOamMIB | HPN-ICF-EFM-COMMON-MIB |
| 1.3.6.1.4.1.11.2.14.11.15.2.42.3.1 | hpnicfDot3OamMIB | HPN-ICF-EFM-COMMON-MIB |
| 1.3.6.1.4.1.11.2.14.11.15.2.42.3.1.4 | hpnicfDot3OamStatsTable | HPN-ICF-EFM-COMMON-MIB |
| 1.3.6.1.4.1.11.2.14.11.15.2.42.3.1.4.1 | hpnicfDot3OamStatsEntry | HPN-ICF-EFM-COMMON-MIB |
| 1.3.6.1.4.1.11.2.14.11.15.2.42.3.1.4.1.5 | hpnicfDot3OamDuplicateEventNotificationTx | HPN-ICF-EFM-COMMON-MIB |