All MIBs › ETH-SWITCH-MIB › ethSwitchOnlyOneMACEvent
ethSwitchOnlyOneMACEvent
Module: ETH-SWITCH-MIB
OID (symbolic): ETH-SWITCH-MIB::ethSwitchOnlyOneMACEvent
OID (numeric): 1.3.6.1.4.1.208.39.0.2
Node type: NOTIFICATION-TYPE
Description: This trap is sent when a port detects more that one MAC address at a port intended for only one MAC. This Trap can only be sent from a Concentrator Switch where only one MAC is allowed, except from the network port. It can NOT be sent from a Backbone Switch since it allows multiple MAC's at all ports. The variable portIfIndex indicates the port where the MAC limit of one has bee exceeded. The problem can be solved by physical moving the MAC to a spare Concentrator Switch port.
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> '' ETH-SWITCH-MIB::ethSwitchOnlyOneMACEvent snmptrap -v2c -c public <manager> '' 1.3.6.1.4.1.208.39.0.2
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]:53951->[192.168.30.10]:162]: DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (25328831) 2 days, 22:21:28.31 SNMPv2-MIB::snmpTrapOID.0 = OID: ETH-SWITCH-MIB::ethSwitchOnlyOneMACEvent
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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 |
| 1.3.6.1.4.1.208 | scanet | SCANET-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.208.39 | ethSwitch | ETH-SWITCH-MIB |
| 1.3.6.1.4.1.208.39.0.2 | ethSwitchOnlyOneMACEvent | ETH-SWITCH-MIB |