EtherWAN-ewnSwitchM :: ewnPortMacChangedMsg

MIB Reference — IPNetwork Monitor · Updated October 05, 2026

All MIBs › EtherWAN-ewnSwitchM › ewnPortMacChangedMsg

ewnPortMacChangedMsg

Module: EtherWAN-ewnSwitchM

OID (symbolic): EtherWAN-ewnSwitchM::ewnPortMacChangedMsg

OID (numeric): 1.3.6.1.4.1.2736.1.1.2.3

Node type: OBJECT-TYPE

Type: OCTET STRING

Access: accessible-for-notify

Description: This object contains the information of a MAC change notification event. It consists of several tuples packed together in the format of '...'. Each tuple consists of 10 octets in the format of '' where has size of 1 octet and supports the following values 1 - MAC learnt. 2 - MAC removed. is the VLAN ID of the VLAN which the MAC address belongs to and has size of 2 octets. is the Layer2 MAC Address and has size of 6 octets. is the port number of the port from which the MAC address is learnt and has size of 1 octet.

What is ewnPortMacChangedMsg?

Carries one or more packed 10-octet tuples of <operation><VLAN><MAC><PortNo> describing MAC addresses that were learned or removed; it is the payload object of the ewnTrapsMacChangedNotification trap, which an admin uses for MAC-move/port-security auditing rather than polling directly.

OID Breakdown

Upper-level ancestors (6 from the standard OID tree / other modules)
Numeric OIDNameModule
1isoLANART-AGENT
1.3orgAirPair-MIB
1.3.6dodAirPair-MIB
1.3.6.1internetAirPair-MIB
1.3.6.1.4privateAirPair-MIB
1.3.6.1.4.1enterprisesAirPair-MIB
Numeric OIDNameModule
1.3.6.1.4.1.2736etherwanEtherWAN-ewnSwitchM
1.3.6.1.4.1.2736.1lanSwitchEtherWAN-ewnSwitchM
1.3.6.1.4.1.2736.1.1ewnSwitchMEtherWAN-ewnSwitchM
1.3.6.1.4.1.2736.1.1.2ewnPortEtherWAN-ewnSwitchM
1.3.6.1.4.1.2736.1.1.2.3ewnPortMacChangedMsgEtherWAN-ewnSwitchM

Module

This MIB depends on