CISCO-MAC-NOTIFICATION-MIB
AI MIB Summary
The CISCO-MAC-NOTIFICATION-MIB configures Cisco IOS devices to generate SNMP traps upon dynamic changes to the Layer 2 forwarding database, specifically monitoring MAC address learning and removal events. This mechanism enables network management systems to track real-time topology shifts and security anomalies by capturing the specific MAC addresses and associated interface states involved in these database modifications.
This MIB module is for configuration of the MAC notification feature. MAC notification is a mechanism to inform monitoring devices when there are MAC addresses learnt or removed from the forwarding database of the monitored devices.
Main OID:
ciscoMacNotificationMIB.1.3.6.1.4.1.9.9.215
46
Objects
Active
Status
8
Dependencies
Imported Objects
Objects
46 total| Object Name |
|---|
ciscoMacNotificationMIBThis MIB module is for configuration of the MAC notification
feature. MAC notification is a mechanism to inform monitoring
devices when there are MAC addresses learnt or removed from
the forwarding database of the monitored devices. MODULE-IDENTITY .1.3.6.1.4.1.9.9.215 |
ciscoMacNotificationMIBObjects OBJECT IDENTIFIER .1.3.6.1.4.1.9.9.215.1 |
cmnGlobalObjects OBJECT IDENTIFIER .1.3.6.1.4.1.9.9.215.1.1 |
cmnGlobalFeatureEnabledIndicates whether the MAC notification feature is currently
running in the device.
Setting this object to false(2) disables the MAC notification
feature globally thus disabling the feature at each interface.
Setting this object to true(1) will start the MAC notification
feature running in the device. If the feature is already
running, setting to true(1) has no effect. Once the MAC
notification is enabled, whether the feature is running at each
interface is controlled by the cmnIfConfigTable.rw TruthValue (SNMPv2-TC) .1.3.6.1.4.1.9.9.215.1.1.1 |
cmnNotificationIntervalThis object specifies the maximum interval of time between
cmnMacChangedNotifications being generated by the device.
If the value of cmnNotificationsEnabled is true(1), the
device will send out the generated cmnMacChangedNotifications
and archive the MAC change notification events in the
cmnHistoryTable. If the value of cmnNotificationEnabled is
false(2), the device will not send out the generated
cmnMacChangedNotifications but it will archive these events
in the cmnHistoryTable.
If the value of this object is equal to 0, the device will
generate cmnMacChangedNotifications and archive the MAC
change notification events in the cmnHistoryTable as soon as
there is MAC address learnt or removed by the device.
If the value of this object is greater than 0, the device will
wait for a period of time equal to the value of this object
before generate the cmnMacChangedNotifications and archive
the MAC change notification events in the cmnHistoryTable.rw Unsigned32 .1.3.6.1.4.1.9.9.215.1.1.2 |
cmnMacAddressesLearntIndicates the number of MAC addresses learnt by the
device.ro Counter32 .1.3.6.1.4.1.9.9.215.1.1.3 |
cmnMacAddressesRemovedIndicates the number of MAC addresses removed from the
forwarding database.ro Counter32 .1.3.6.1.4.1.9.9.215.1.1.4 |
cmnNotificationsEnabledIndicates whether cmnMacChangedNotification notifications
will or will not be sent when there are MAC addresses
learnt or removed from the device's forwarding database.
Disabling notifications does not prevent the MAC address
info from being added to the cmnHistoryTable.rw TruthValue (SNMPv2-TC) .1.3.6.1.4.1.9.9.215.1.1.5 |
cmnNotificationsSentIndicates the number of cmnMacChangedNotifications sent out
by the device.ro Counter32 .1.3.6.1.4.1.9.9.215.1.1.6 |
cmnHistTableMaxLengthThe upper limit on the number of entries that the
cmnHistoryTable may contain. A value of 0 will
prevent any history from being retained. When this
table is full, the oldest entry will be deleted and
a new one will be created.rw Unsigned32 .1.3.6.1.4.1.9.9.215.1.1.7 |
cmnHistoryTableThis table will archive the MAC change notification events
generated by this device. The MAC change notification
events are archived here even if cmnMacChangesNotifications
are not actually sent. SEQUENCE OF CmnHistoryEntry .1.3.6.1.4.1.9.9.215.1.1.8 |
cmnHistoryEntryA MAC change notification message that was previously
generated by this device. Each entry is indexed by a message
index. CmnHistoryEntry .1.3.6.1.4.1.9.9.215.1.1.8.1 |
cmnHistIndexAn index that uniquely identifies a MAC change notification
event previously generated by the device. This index starts at
1 and increases by one when a MAC change notification is
generated. When it reaches the maximum value, the agent wraps
the value back to 1. Unsigned32 .1.3.6.1.4.1.9.9.215.1.1.8.1.1 |
cmnHistMacChangedMsgThis object contains the information of a MAC change
notification event. It consists of several tuples packed
together in the format of '<tuple1><tuple2>...'.
Each tuple consist of 11 octets in the format of
'<operation><VLAN><MAC><dot1dBasePort>' where
<operation> is of size 1 octet and supports the following values
0 - End of MIB object.
1 - MAC learnt.
2 - MAC removed.
<VLAN> is VLAN number of the VLAN which the MAC address is
belonged to and has size of 2 octet.
<MAC> is the Layer2 Mac Address and has size of 6 octets.
<dot1dBasePort> is the value of dot1dBasePort for the
interface from which the MAC address is learnt and has size
of 2 octets.ro OCTET STRING .1.3.6.1.4.1.9.9.215.1.1.8.1.2 |
cmnHistTimestampThe value of sysUpTime when the cmnMacChangedNotification
containing the information denoted by the cmnHistMacChangedMsg
object in this entry was generated.ro TimeStamp (SNMPv2-TC) .1.3.6.1.4.1.9.9.215.1.1.8.1.3 |
cmnInterfaceObjects OBJECT IDENTIFIER .1.3.6.1.4.1.9.9.215.1.2 |
cmnIfConfigTableThis table enables or disables the generation of notification
at each interface when MAC address is learnt or removed. SEQUENCE OF CmnIfConfigEntry .1.3.6.1.4.1.9.9.215.1.2.1 |
cmnIfConfigEntryEach entry contains the configuration for enabling the
MAC notification at each interface that supports this
feature. CmnIfConfigEntry .1.3.6.1.4.1.9.9.215.1.2.1.1 |
cmnMacAddrLearntEnableIndicates whether this interface is enabled to send
cmnMacChangedNotification when it learns a new MAC address. This
variable has no effect when the value of cmnGlobalFeatureEnabled
object is false(2).
Setting this object to true(1) enables the sending of
cmnMacChangedNotification when this interface learns a
new MAC address.
Setting this object to false(2) disables the sending
of cmnMacChangedNotification when this interface learns
a new MAC address.rw TruthValue (SNMPv2-TC) .1.3.6.1.4.1.9.9.215.1.2.1.1.1 |
cmnMacAddrRemovedEnableIndicates whether this interface is enabled to send
cmnMacChangedNotification when a MAC address which it learnt
previously is removed from the forwarding table. This variable
has no effect when the value of cmnGlobalFeatureEnabled object
is false(2).
Setting this object to true(1) enables the sending of
cmnMacChangedNotification when a MAC address which this
interface learnt previously is removed from the forwarding
table.
Setting this object to false(2) disables the sending of
cmnMacChangedNotification when a MAC address which this
interface learnt previously is removed from the forwarding
table.rw TruthValue (SNMPv2-TC) .1.3.6.1.4.1.9.9.215.1.2.1.1.2 |
cmnMACMoveObjects OBJECT IDENTIFIER .1.3.6.1.4.1.9.9.215.1.3 |
cmnMACMoveFeatureEnabledSpecifies whether the MAC Move notification feature is
currently running in the device.
Setting this object to false(2) disables the MAC Move
notification feature globally.
Setting this object to true(1) will start the MAC Move
notification feature running in the device.rw TruthValue (SNMPv2-TC) .1.3.6.1.4.1.9.9.215.1.3.1 |
cmnMACMoveNotificationsEnabledSpecifies whether cmnMacMoveNotification notifications
will or will not be sent when the MAC addresses are
moved between the interfaces.rw TruthValue (SNMPv2-TC) .1.3.6.1.4.1.9.9.215.1.3.2 |
cmnMACMoveAddressIndicates the MAC address that is moved between
cmnMACMoveFromPortId and cmnMACMoveToPortId on
cmnMACMoveVlanNumber. This object is instantiated only
when cmnMACMoveFeatureEnabled value is set to true(2) and
a MAC address is moved between the interfaces.ro MacAddress (SNMPv2-TC) .1.3.6.1.4.1.9.9.215.1.3.3 |
cmnMACMoveVlanNumberIndicates the VLAN on which the cmnMACMoveAddress is
moved from cmnMACMoveFromPortId to cmnMACMoveToPortId.
This object is instantiated only when
cmnMACMoveFeatureEnabled value is set to true(2) and
a MAC address is moved between the interfaces.ro VlanIndex .1.3.6.1.4.1.9.9.215.1.3.4 |
cmnMACMoveFromPortIdThe value of dot1dBasePort for the bridge port from which
the cmnMACMoveAddress is moved to cmnMACMoveToPortId on
cmnMACMoveVlanNumber. This object is instantiated only when
cmnMACMoveFeatureEnabled value is set to true(2) and
a MAC address is moved between the interfaces.ro Integer32 .1.3.6.1.4.1.9.9.215.1.3.5 |
cmnMACMoveToPortIdThe value of dot1dBasePort for the bridge port to which
the cmnMACMoveAddress is moved from cmnMACMoveFromPortId
on cmnMACMoveVlanNumber. This object is instantiated only
when cmnMACMoveFeatureEnabled value is set to true(2) and a
MAC address is moved between the interfaces.ro Integer32 .1.3.6.1.4.1.9.9.215.1.3.6 |
cmnMACMoveTimeThe value of sysUpTime when a cmnMACMoveAddress is moved
between cmnMACMoveFromPortId and cmnMACMACMoveToPortId.
This object is instantiated only when
cmnMACMoveFeatureEnabled value is set to true(2) and a
MAC address is moved between the interfaces.ro TimeStamp (SNMPv2-TC) .1.3.6.1.4.1.9.9.215.1.3.7 |
cmnMACThresholdObjects OBJECT IDENTIFIER .1.3.6.1.4.1.9.9.215.1.4 |
cmnMACThresholdFeatureEnabledSpecifies whether the MAC Threshold notification feature is
currently running in the device.
Setting this object to false(2) disables the MAC Threshold
notification feature globally.
Setting this object to true(1) will start the MAC Threshold
notification feature running in the device.rw TruthValue (SNMPv2-TC) .1.3.6.1.4.1.9.9.215.1.4.1 |
cmnMACThresholdLimitIndicate the threshold limit of the forwarding table
utilization.rw Percent (CISCO-QOS-PIB-MIB) .1.3.6.1.4.1.9.9.215.1.4.2 |
cmnMACThresholdIntervalInterval at which forwarding table utilization is compared
against cmnMACThresholdLimit.rw Unsigned32 UNITS "seconds" .1.3.6.1.4.1.9.9.215.1.4.3 |
cmnMACThresholdNotifEnabledSpecifies whether cmnMacMACThresholdNotification
notifications will or will not be sent when the forwarding
table utilization exceeds or equals to cmnMACThresholdLimit
value.rw TruthValue (SNMPv2-TC) .1.3.6.1.4.1.9.9.215.1.4.4 |
cmnUtilizationTablecmnUtilizationTable specifies the forwarding table
utilization information. This table is instantiated only
when cmnMACThresholdFeatureEnabled value is set to true(2).
Entries in this table are updated at the end of every
cmnMACThresholdInterval. SEQUENCE OF CmnUtilizationEntry .1.3.6.1.4.1.9.9.215.1.4.5 |
cmnUtilizationEntryA conceptual row containing forwarding table utilization
maintained by switching engine (identified by
entPhysicalIndex). Each switching engine managed by this
MIB module can have at least one entry in this table. CmnUtilizationEntry .1.3.6.1.4.1.9.9.215.1.4.5.1 |
cmnUtilizationEntriesIndicates the number of entries present in the forwarding
table for the given entPhysicalIndex calculated at the
end of cmnMACThresholdInterval.ro Unsigned32 .1.3.6.1.4.1.9.9.215.1.4.5.1.1 |
cmnUtilizationUtilizationIndicates the utilization of the forwarding table for the given
entPhysicalIndex calculated at the end of
cmnMACThresholdInterval.ro Percent (CISCO-QOS-PIB-MIB) .1.3.6.1.4.1.9.9.215.1.4.5.1.2 |
cmnUtilizationTimeStampIndicates the sysUptime at which the cmnUtilizationUtilization
is updated.ro TimeStamp (SNMPv2-TC) .1.3.6.1.4.1.9.9.215.1.4.5.1.3 |
cmnMIBNotificationPrefix OBJECT IDENTIFIER .1.3.6.1.4.1.9.9.215.2 |
cmnMIBNotifications OBJECT IDENTIFIER .1.3.6.1.4.1.9.9.215.2.0 |
cmnMacChangedNotificationThis notification is generated when there is enough MAC
address information to fully occupy a maximum size SNMP trap
message. This notification is also generated when there
is at least one MAC address changed or removed and the amount
of time elapsed from the previous notification is greater
than the maximum wait time denoted by
cmnNotificationInterval object.
If there are more MAC addresses information than can fit into
one cmmHistTrapContent object, then multiple notifications
will be generated. NOTIFICATION-TYPE .1.3.6.1.4.1.9.9.215.2.0.1 |
cmnMacMoveNotificationcmnMacMoveNotification is generated when a MAC address is
moved between two interfaces. NOTIFICATION-TYPE .1.3.6.1.4.1.9.9.215.2.0.2 |
cmnMacThresholdExceedNotifcmnMacThresholdExceedNotif is sent when
cmnUtilizationUtilization exceeds or equals to the
cmnMACThresholdLimit for a given entPhysicalIndex. NOTIFICATION-TYPE .1.3.6.1.4.1.9.9.215.2.0.3 |
cmnMIBConformance OBJECT IDENTIFIER .1.3.6.1.4.1.9.9.215.3 |
cmnMIBCompliances OBJECT IDENTIFIER .1.3.6.1.4.1.9.9.215.3.1 |
cmnMIBGroups OBJECT IDENTIFIER .1.3.6.1.4.1.9.9.215.3.2 |