All MIBs › RAD-MIB › dot3OamOperStatusChange
dot3OamOperStatusChange
Module: RAD-MIB
OID (symbolic): RAD-MIB::dot3OamOperStatusChange
OID (numeric): 1.3.6.1.4.1.164.3.1.6.1.6.0.1
Node type: NOTIFICATION-TYPE
Description:
This trap is sent when OAM EFM Link goes Up or Down. Up - is considered when dot3OamOperStatus value changes to operational(9) from any other value. Down - is considered when dot3OamOperStatus value changes from operational(9) to any other value.
What is dot3OamOperStatusChange?
This SNMP trap is sent when an Ethernet OAM (Operations, Administration and Maintenance) link changes state between operational and non-operational, as detected by the 802.3ah EFM protocol. The trap distinguishes between 'Link Up' (transitions to operational) and 'Link Down' (transitions away from operational). An operator would use this to automatically detect link failures and trigger failover or maintenance procedures.
Examples
Send this trap to an SNMP manager — replace <manager> with the IP or hostname of your monitoring server (SNMPv2c):
snmptrap -v2c -c public <manager> '' RAD-MIB::dot3OamOperStatusChange snmptrap -v2c -c public <manager> '' 1.3.6.1.4.1.164.3.1.6.1.6.0.1
Listen for incoming traps on the manager host (-f keeps it in the foreground, -Lo prints to stdout — useful for testing):
snmptrapd -f -Lo -c /dev/null authCommunity log public
Example snmptrapd log entry:
zoo11-linux.zoo [UDP: [192.168.30.111]:64949->[192.168.30.10]:162]: DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (49316277) 5 days, 16:59:22.77 SNMPv2-MIB::snmpTrapOID.0 = OID: RAD-MIB::dot3OamOperStatusChange
OID Breakdown
| Numeric OID | Name | Module |
|---|---|---|
| 1 | iso | LANART-AGENT |
| 1.3 | org | BIANCA-BRICK-PPP-MIB |
| 1.3.6 | dod | BIANCA-BRICK-PPP-MIB |
| 1.3.6.1 | internet | BIANCA-BRICK-PPP-MIB |
| 1.3.6.1.4 | private | BIANCA-BRICK-PPP-MIB |
| 1.3.6.1.4.1 | enterprises | ANIROOT-MIB |
| 1.3.6.1.4.1.164 | rad | DACS-MIB |
| 1.3.6.1.4.1.164.3 | radWan | DACS-MIB |
| 1.3.6.1.4.1.164.3.1 | wanGen | DACS-MIB |
| 1.3.6.1.4.1.164.3.1.6 | diverseIfWanGen | DACS-MIB |
| 1.3.6.1.4.1.164.3.1.6.1 | ethIf | DACS-MIB |
| 1.3.6.1.4.1.164.3.1.6.1.6 | ethIfOamEfm | RAD-MIB |
| 1.3.6.1.4.1.164.3.1.6.1.6.0 | dot3OamEvents | RAD-MIB |
| 1.3.6.1.4.1.164.3.1.6.1.6.0.1 | dot3OamOperStatusChange | RAD-MIB |