All MIBs › RAPID-CITY › rcLoopDetectOnPort
rcLoopDetectOnPort
Module: RAPID-CITY
OID (symbolic): RAPID-CITY::rcLoopDetectOnPort
OID (numeric): 1.3.6.1.4.1.2272.1.21.38
Node type: NOTIFICATION-TYPE
Description: A rcSaveConfigAction trap indicates that a loop has been detected on a port. The vlan on that port will be disabled.
What is rcLoopDetectOnPort?
This OID triggers an alert notification when the system detects a network loop (redundant connections causing circular traffic) on a port. It automatically blocks traffic on the affected virtual network to prevent network damage. An operator would use the notification to quickly identify and fix the wiring mistake that created the loop.
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> '' RAPID-CITY::rcLoopDetectOnPort snmptrap -v2c -c public <manager> '' 1.3.6.1.4.1.2272.1.21.38
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]:53003->[192.168.30.10]:162]: DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (423660299) 49 days, 0:50:02.99 SNMPv2-MIB::snmpTrapOID.0 = OID: RAPID-CITY::rcLoopDetectOnPort
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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 |
| 1.3.6.1.4 | private | AirPair-MIB |
| 1.3.6.1.4.1 | enterprises | AirPair-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.2272 | rapidCity | RAPID-CITY |
| 1.3.6.1.4.1.2272.1 | rcMgmt | RAPID-CITY |
| 1.3.6.1.4.1.2272.1.21 | rcTraps | RAPID-CITY |
| 1.3.6.1.4.1.2272.1.21.38 | rcLoopDetectOnPort | RAPID-CITY |