All MIBs › ATM-FORUM-M4-MIB › atmfM4IfLopAlarm
atmfM4IfLopAlarm
Module: ATM-FORUM-M4-MIB
OID (symbolic): ATM-FORUM-M4-MIB::atmfM4IfLopAlarm
OID (numeric): 1.3.6.1.4.1.353.100.2.4
Node type: NOTIFICATION-TYPE
Description: Indicates that an LOP (Loss of Pointer) condition has occurred on the physical path TP associated with the specified interface.
What is atmfM4IfLopAlarm?
This notification alerts network operators when a Loss of Pointer (LOP) alarm condition is detected on an ATM interface, indicating a synchronization problem with the physical transmission path. LOP is a critical signal degradation fault in ATM networks that requires immediate attention. Operators use this alarm to detect and troubleshoot physical layer problems affecting ATM circuit integrity.
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> '' ATM-FORUM-M4-MIB::atmfM4IfLopAlarm snmptrap -v2c -c public <manager> '' 1.3.6.1.4.1.353.100.2.4
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]:64777->[192.168.30.10]:162]: DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (67223817) 7 days, 18:43:58.17 SNMPv2-MIB::snmpTrapOID.0 = OID: ATM-FORUM-M4-MIB::atmfM4IfLopAlarm
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OID Breakdown
Upper-level ancestors (7 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 |
| 1.3.6.1.4.1.353 | atmForum | ATM-FORUM-ILMI40-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.353.100 | atmfM4MIB | ATM-FORUM-M4-MIB |
| 1.3.6.1.4.1.353.100.2 | atmfM4MIBTraps | ATM-FORUM-M4-MIB |
| 1.3.6.1.4.1.353.100.2.4 | atmfM4IfLopAlarm | ATM-FORUM-M4-MIB |