All MIBs › MAC-NOTIFICATION-MIB › mnHistMacChangedMsg
mnHistMacChangedMsg
Module: MAC-NOTIFICATION-MIB
OID (symbolic): MAC-NOTIFICATION-MIB::mnHistMacChangedMsg
OID (numeric): 1.3.6.1.4.1.13464.1.2.3.3.1.1.1.8.1.2
Node type: OBJECT-TYPE
Type: OCTET STRING
Access: read-only
Description: This object contains the information of a MAC change
notification event. It consists of several tuples packed
together in the format of '
What is mnHistMacChangedMsg?
This read-only object packs one or more 11-octet tuples, each an operation code, VLAN, MAC address, and dot1dBasePort, describing MAC learn or remove events recorded in a mnHistoryTable entry. An admin or management station decodes this binary blob to determine exactly which MAC address changed on which VLAN and port, since operation code 1 means learned and 2 means removed. For example, a tuple decoding to operation 1, VLAN 100, a specific MAC address, and port 12 tells the admin that MAC address was newly learned on VLAN 100 at the interface mapped to dot1dBasePort 12.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.13464.1.2.3.3.1.1.1.8.1.2 snmpwalk -v2c -c public <target> MAC-NOTIFICATION-MIB::mnHistMacChangedMsg
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.13464.1.2.3.3.1.1.1.8.1.2.1 snmpget -v2c -c public <target> MAC-NOTIFICATION-MIB::mnHistMacChangedMsg.1
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OID Breakdown
Upper-level ancestors (11 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 |
| 1.3.6.1.4.1.13464 | admin | ADMIN-MASTER-MIB |
| 1.3.6.1.4.1.13464.1 | dataCom | ADMIN-MASTER-MIB |
| 1.3.6.1.4.1.13464.1.2 | gbn | ADMIN-MASTER-MIB |
| 1.3.6.1.4.1.13464.1.2.3 | gbnService | ADMIN-MASTER-MIB |
| 1.3.6.1.4.1.13464.1.2.3.3 | gbnServiceMACNotification | ADMIN-MASTER-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.13464.1.2.3.3.1 | macNotificationMIB | MAC-NOTIFICATION-MIB |
| 1.3.6.1.4.1.13464.1.2.3.3.1.1 | macNotificationMIBObjects | MAC-NOTIFICATION-MIB |
| 1.3.6.1.4.1.13464.1.2.3.3.1.1.1 | mnGlobalObjects | MAC-NOTIFICATION-MIB |
| 1.3.6.1.4.1.13464.1.2.3.3.1.1.1.8 | mnHistoryTable | MAC-NOTIFICATION-MIB |
| 1.3.6.1.4.1.13464.1.2.3.3.1.1.1.8.1 | mnHistoryEntry | MAC-NOTIFICATION-MIB |
| 1.3.6.1.4.1.13464.1.2.3.3.1.1.1.8.1.2 | mnHistMacChangedMsg | MAC-NOTIFICATION-MIB |