IEEE8021-CFM-MIB
AI MIB Summary
The IEEE8021-CFM-MIB module enables the monitoring and management of IEEE 802.1ag Connectivity Fault Management (CFM) operations on Layer 2 network devices, specifically tracking Maintenance Domain, Maintenance Association, and Maintenance Entity Group states, along with associated performance metrics such as Continuity Check message loss, delay, and loopback response times.
Connectivity Fault Management module for managing IEEE 802.1ag
Main OID:
cdot1CfmMIB.1.3.6.1.4.1.9.9.604
153
Objects
Active
Status
6
Dependencies
Imported Objects
Objects
153 total| Object Name |
|---|
cdot1CfmMIBConnectivity Fault Management module for managing IEEE 802.1ag MODULE-IDENTITY .1.3.6.1.4.1.9.9.604 |
cdot1agNotifications OBJECT IDENTIFIER .1.3.6.1.4.1.9.9.604.0 |
cdot1agFaultAlarmA MEP has a persistent defect condition. A notification
(fault alarm) is sent to the management entity with the OID
of the MEP that has detected the fault.
Whenever a MEP has a persistent defect,
it may or may not generate a Fault Alarm to warn the system
administrator of the problem, as controlled by the MEP
Fault Notification Generator State Machine and associated
Managed Objects. Only the highest-priority defect, as shown
in Table 20-1, is reported in the Fault Alarm.
If a defect with a higher priority is raised after a Fault
Alarm has been issued, another Fault Alarm is issued.
The management entity receiving the notification can identify
the system from the network source address of the
notification, and can identify the MEP reporting the defect
by the indices in the OID of the cdot1agMepHighestPrDefect
variable in the notification:
cdot1agMdIndex - Also the index of the MEP's
Maintenance Domain table entry
(cdot1agMdTable).
cdot1agMaIndex - Also an index (with the MD table index)
of the MEP's Maintenance Association
table entry (cdot1agMaTable).
cdot1agMepIdentifier - MEP Identifier and final index
into the MEP table (cdot1agMepTable). NOTIFICATION-TYPE .1.3.6.1.4.1.9.9.604.0.1 |
cdot1agMIBObjects OBJECT IDENTIFIER .1.3.6.1.4.1.9.9.604.1 |
cdot1agStack OBJECT IDENTIFIER .1.3.6.1.4.1.9.9.604.1.1 |
cdot1agStackTableThere is one CFM Stack table per bridge. It permits
the retrieval of information about the Maintenance Points
configured on any given interface. Unknown .1.3.6.1.4.1.9.9.604.1.1.1 |
cdot1agStackEntryThe Stack table entry Cdot1agStackEntry .1.3.6.1.4.1.9.9.604.1.1.1.1 |
cdot1agStackifIndexThis object represents the Bridge Port or aggregated port
on which MEPs or MHFs might be configured.
Upon a restart of the system, the system SHALL, if necessary,
change the value of this variable, and rearrange the
cdot1agStackTable, so that it indexes the entry in the
interface table with the same value of ifAlias that it
indexed before the system restart. If no such entry exists,
then the system SHALL delete all entries in the
cdot1agStackTable with the interface index. InterfaceIndex (IF-MIB) .1.3.6.1.4.1.9.9.604.1.1.1.1.1 |
cdot1agStackVlanIdOrNoneVLAN ID to which the MP is attached, or 0, if none. VlanId (Q-BRIDGE-MIB) .1.3.6.1.4.1.9.9.604.1.1.1.1.2 |
cdot1agStackMdLevelMD Level of the Maintenance Point. Cdot1agMDLevel .1.3.6.1.4.1.9.9.604.1.1.1.1.3 |
cdot1agStackDirectionDirection in which the MP faces on the Bridge Port Cdot1agMpDirection .1.3.6.1.4.1.9.9.604.1.1.1.1.4 |
cdot1agStackMdIndexThe index of the Maintenance Domain in the cdot1agMdTable
to which the MP is associated, or 0, if none.ro Unsigned32 .1.3.6.1.4.1.9.9.604.1.1.1.1.5 |
cdot1agStackMaIndexThe index of the MA in the cdot1agMaTable to which the MP
is associated, or 0, if none.ro Unsigned32 .1.3.6.1.4.1.9.9.604.1.1.1.1.6 |
cdot1agStackMepIdIf an MEP is configured, the MEPID, else 0ro Cdot1agMepIdOrZero .1.3.6.1.4.1.9.9.604.1.1.1.1.7 |
cdot1agStackMacAddressMAC address of the MP.ro MacAddress (SNMPv2-TC) .1.3.6.1.4.1.9.9.604.1.1.1.1.8 |
cdot1agDefaultMd OBJECT IDENTIFIER .1.3.6.1.4.1.9.9.604.1.2 |
cdot1agDefaultMdDefLevelA value indicating the MD Level at which MHFs are to be
created, and Sender ID TLV transmission by those MHFs is to
be controlled, for each cdot1agDefaultMdEntry whose
cdot1agDefaultMdLevel object contains the value -1.
After this initialization, this object needs to be persistent
upon reboot or restart of a device.rw Cdot1agMDLevel .1.3.6.1.4.1.9.9.604.1.2.1 |
cdot1agDefaultMdDefMhfCreationA value indicating if the Management entity can create MHFs
(MIP Half Function) for the VID, for each
cdot1agDefaultMdEntry whose cdot1agDefaultMdMhfCreation
object contains the value defMHFdefer. Since, in this
variable, there is no encompassing Maintenance Domain, the
value defMHFdefer takes the meaning of defMHFnone.
After this initialization, this object needs to be persistent
upon reboot or restart of a device.rw Cdot1agMhfCreation .1.3.6.1.4.1.9.9.604.1.2.2 |
cdot1agDefaultMdDefIdPermissionEnumerated value indicating what, if anything, is to be
included in the Sender ID TLV (21.5.3) transmitted by MHFs
created by the Default Maintenance Domain, for each
cdot1agDefaultMdEntry whose cdot1agDefaultMdIdPermission
object contains the value sendIdDefer. Since, in this
variable, there is no encompassing Maintenance Domain, the
value sendIdDefer takes the meaning of sendIdChassisManage.
After this initialization, this object needs to be persistent
upon reboot or restart of a device.rw Cdot1agIdPermission .1.3.6.1.4.1.9.9.604.1.2.3 |
cdot1agDefaultMdTableThe Default MD Level Managed Object controls MHF creation for
VIDs that are not attached to a specific Maintenance
Association Managed Object, and Sender ID TLV transmission by
those MHFs.
For each Bridge Port, and for each VLAN ID whose data can
pass through that Bridge Port, an entry in this table is
used by the algorithm in subclause 22.2.3 only if there is no
entry in the Maintenance Association table defining an MA
for the same VLAN ID and MD Level as this table's entry, and
on which MA an Up MEP is defined. If there exists such an
MA, that MA's objects are used by the algorithm in
subclause 22.2.3 in place of this table entry's objects. The
agent maintains the value of cdot1agDefaultMdStatus to
indicate whether this entry is overridden by an MA.
When first initialized, the agent creates this table
automatically with entries for all VLAN IDs,
with the default values specified for each object.
After this initialization, the writable objects in this
table need to be persistent upon reboot or restart of a
device. SEQUENCE OF Cdot1agDefaultMdEntry .1.3.6.1.4.1.9.9.604.1.2.4 |
cdot1agDefaultMdEntryThe Default MD Level table entry. Cdot1agDefaultMdEntry .1.3.6.1.4.1.9.9.604.1.2.4.1 |
cdot1agDefaultMdPrimaryVidThe Primary VID of the VLAN to which this entry's objects
apply VlanId (Q-BRIDGE-MIB) .1.3.6.1.4.1.9.9.604.1.2.4.1.1 |
cdot1agDefaultMdStatusState of this Default MD Level table entry. True if there is
no entry in the Maintenance Association table defining an MA
for the same VLAN ID and MD Level as this table's entry, and
on which MA an Up MEP is defined, else false.ro TruthValue (SNMPv2-TC) .1.3.6.1.4.1.9.9.604.1.2.4.1.2 |
cdot1agDefaultMdLevelA value indicating the MD Level at which MHFs are to be
created, and Sender ID TLV transmission by those MHFs is to
be controlled, for the VLAN to which this entry's objects
apply. If this object has the value -1, the MD Level for MHF
creation for this VLAN is controlled by
cdot1agDefaultMdDefLevel.rw Cdot1agMDLevelOrNone .1.3.6.1.4.1.9.9.604.1.2.4.1.3 |
cdot1agDefaultMdMhfCreationA value indicating if the Management entity can create MHFs
(MIP Half Function) for this VID at this MD Level. If this
object has the value defMHFdefer, MHF creation for this VLAN
is controlled by cdot1agDefaultMdDefMhfCreation.
The value of this variable is meaningless if the values of
cdot1agDefaultMdStatus is false.rw Cdot1agMhfCreation .1.3.6.1.4.1.9.9.604.1.2.4.1.4 |
cdot1agDefaultMdIdPermissionEnumerated value indicating what, if anything, is to be
included in the Sender ID TLV (21.5.3) transmitted by MHFs
created by the Default Maintenance Domain. If this object
has the value sendIdDefer, Sender ID TLV transmission for
this VLAN is controlled by cdot1agDefaultMdDefIdPermission.
The value of this variable is meaningless if the values of
cdot1agDefaultMdStatus is false.rw Cdot1agIdPermission .1.3.6.1.4.1.9.9.604.1.2.4.1.5 |
cdot1agVlan OBJECT IDENTIFIER .1.3.6.1.4.1.9.9.604.1.3 |
cdot1agVlanTableThis table defines the association of VIDs into VLANs. There
is an entry in this table for each VID that is:
a) a VID belonging to a VLAN associated with more than
one VID; and
b) not the Primary VLAN of that VID.
The entry in this table contains the Primary VID of the VLAN.
By default, this table is empty, meaning that every VID is
the Primary VID of a single-VID VLAN.
VLANs that are associated with only one VID SHOULD NOT have
an entry in this table.
The writable objects in this table need to be persistent
upon reboot or restart of a device. SEQUENCE OF Cdot1agVlanEntry .1.3.6.1.4.1.9.9.604.1.3.1 |
cdot1agVlanEntryThe VLAN table entry. Cdot1agVlanEntry .1.3.6.1.4.1.9.9.604.1.3.1.1 |
cdot1agVlanVidThis is a VLAN ID belonging to a VLAN that is associated with
more than one VLAN ID, and this is not the Primary VID of the
VLAN. VlanId (Q-BRIDGE-MIB) .1.3.6.1.4.1.9.9.604.1.3.1.1.1 |
cdot1agVlanPrimaryVidThis is the Primary VLAN ID of the VLAN with which this
entry's cdot1agVlanVid is associated. This value must not
equal the value of cdot1agVlanVid.rw VlanId (Q-BRIDGE-MIB) .1.3.6.1.4.1.9.9.604.1.3.1.1.2 |
cdot1agVlanRowStatusThe status of the row.
The writable columns in a row can not be changed if the row
is active. All columns must have a valid value before a row
can be activated.rw RowStatus (SNMPv2-TC) .1.3.6.1.4.1.9.9.604.1.3.1.1.3 |
cdot1agConfigErrorList OBJECT IDENTIFIER .1.3.6.1.4.1.9.9.604.1.4 |
cdot1agConfigErrorListTableThe CFM Configuration Error List table provides a list of
Interfaces and VIDs that are incorrectly configured. SEQUENCE OF Cdot1agConfigErrorListEntry .1.3.6.1.4.1.9.9.604.1.4.1 |
cdot1agConfigErrorListEntryThe Config Error List Table entry Cdot1agConfigErrorListEntry .1.3.6.1.4.1.9.9.604.1.4.1.1 |
cdot1agConfigErrorListVidThe VLAN ID of the VLAN with interfaces in error. VlanId (Q-BRIDGE-MIB) .1.3.6.1.4.1.9.9.604.1.4.1.1.1 |
cdot1agConfigErrorListIfIndexThis object is the IfIndex of the interface.
Upon a restart of the system, the system SHALL, if necessary,
change the value of this variable so that it indexes the
entry in the interface table with the same value of ifAlias
that it indexed before the system restart. If no such
entry exists, then the system SHALL delete any entries in
cdot1agConfigErrorListTable indexed by that
InterfaceIndex value. InterfaceIndex (IF-MIB) .1.3.6.1.4.1.9.9.604.1.4.1.1.2 |
cdot1agConfigErrorListErrorTypeA vector of Boolean error conditions from 22.2.4, any of
which may be true:
0) CFMleak;
1) ConflictingVids;
2) ExcessiveLevels;
3) OverlappedLevels.ro Cdot1agConfigErrors .1.3.6.1.4.1.9.9.604.1.4.1.1.3 |
cdot1agMd OBJECT IDENTIFIER .1.3.6.1.4.1.9.9.604.1.5 |
cdot1agMdTableNextIndexThis object contains an unused value for cdot1agMdIndex in
the cdot1agMdTable, or a zero to indicate that none exist.ro Dot1afCfmIndexIntegerNextFree .1.3.6.1.4.1.9.9.604.1.5.1 |
cdot1agMdTableThe Maintenance Domain table. Each row in the table
represents a different Maintenance Domain.
A Maintenance Domain is described in 802.1ag (3.22) as the
network or the part of the network for which faults in
connectivity are to be managed. The boundary of a Maintenance
Domain is defined by a set of DSAPs, each of which can become
a point of connectivity to a service instance. SEQUENCE OF Cdot1agMdEntry .1.3.6.1.4.1.9.9.604.1.5.2 |
cdot1agMdEntryThe Maintenance Domain table entry. This entry is not lost
upon reboot. It is backed up by stable storage. Cdot1agMdEntry .1.3.6.1.4.1.9.9.604.1.5.2.1 |
cdot1agMdIndexThe index to the Maintenance Domain table.
cdot1agMdTableNextIndex needs to be inspected to find an
available index for row-creation.
Referential integrity is required i.e. the index needs to be
persistent upon a reboot or restart of a device. The index
can never be reused for other Maintenance Domain. The index
value should keep increasing up to the time that they wrap
around. This is to facilitate access control based on OID. Unsigned32 .1.3.6.1.4.1.9.9.604.1.5.2.1.1 |
cdot1agMdFormatThe type (and thereby format) of the Maintenance Domain Name.rw Cdot1agMaintDomainNameType .1.3.6.1.4.1.9.9.604.1.5.2.1.2 |
cdot1agMdNameThe Maintenance Domain name. The type/format of this object
is determined by the value of the cdot1agMdNameType object.
Each Maintenance Domain has unique name amongst all those
used or available to a service provider or operator. It
facilitates easy identification of administrative
responsibility for each Maintenance Domain.
Clause 3.24 defines a Maintenance Domain name as the
identifier, unique over the domain for which CFM is to
protect against accidental concatenation of Service
Instances, of a particular Maintenance Domain.rw Cdot1agMaintDomainName .1.3.6.1.4.1.9.9.604.1.5.2.1.3 |
cdot1agMdMdLevelThe Maintenance Domain Level.rw Cdot1agMDLevel .1.3.6.1.4.1.9.9.604.1.5.2.1.4 |
cdot1agMdMhfCreationEnumerated value indicating whether the management entity can
create MHFs (MIP Half Function) for this Maintenance Domain.rw Cdot1agMhfCreation .1.3.6.1.4.1.9.9.604.1.5.2.1.5 |
cdot1agMdMhfIdPermissionEnumerated value indicating what, if anything, is to be
included in the Sender ID TLV (21.5.3) transmitted by MPs
configured in this Maintenance Domain. Since, in this
variable, there is no encompassing Maintenance Domain, the
value sendIdDefer takes the meaning of sendIdChassisManage.rw Cdot1agIdPermission .1.3.6.1.4.1.9.9.604.1.5.2.1.6 |
cdot1agMdMaTableNextIndexValue to be used as the index of the MA table entries for
this Maintenance Domain when the management entity wants to
create a new row in the MA table.ro Dot1afCfmIndexIntegerNextFree .1.3.6.1.4.1.9.9.604.1.5.2.1.7 |
cdot1agMdRowStatusThe status of the row.
The writable columns in a row can not be changed if the row
is active. All columns must have a valid value before a row
can be activated.rw RowStatus (SNMPv2-TC) .1.3.6.1.4.1.9.9.604.1.5.2.1.8 |
cdot1agMa OBJECT IDENTIFIER .1.3.6.1.4.1.9.9.604.1.6 |
cdot1agMaTableThe Maintenance Association table. Each row in the table
represents an MA. An MA is a set of MEPs, each configured
with a single service instance.
Creation of a Service Instance establishes a connectionless
association among the selected DSAPs. Configuring a
Maintenance association End Point (MEP) at each of the
DSAPs creates a Maintenance Association (MA) to monitor
that connectionless connectivity. The MA is identified by a
Short MA Name that is unique within the Maintenance Domain
and chosen to facilitate easy identification of the Service
Instance. Together, the Maintenance Domain Name and the
Short MA Name form the Maintenance Association Identifier
(MAID) that is carried in CFM Messages to identify
incorrect connectivity among Service Instances. A small
integer, the Maintenance association End Point Identifier
(MEPID), identifies each MEP among those configured on a
single MA (802.1ag clauses 3.17 and 18.2).
This table uses two indices, first index is the index of the
Maintenance Domain table.
The writable objects in this table need to be persistent
upon reboot or restart of a device. SEQUENCE OF Cdot1agMaEntry .1.3.6.1.4.1.9.9.604.1.6.1 |
cdot1agMaEntryThe MA table entry. Cdot1agMaEntry .1.3.6.1.4.1.9.9.604.1.6.1.1 |
cdot1agMaIndexIndex of the MA table cdot1agMdMaTableNextIndex needs to
be inspected to find an available index for row-creation. Unsigned32 .1.3.6.1.4.1.9.9.604.1.6.1.1.1 |
cdot1agMaPrimaryVlanIdThe Primary VLAN ID with which the Maintenance Association is
associated, or 0 if the MA is not attached to any VID. If
the MA is associated with more than one VID, the
cdot1agVlanTable lists them.rw VlanId (Q-BRIDGE-MIB) .1.3.6.1.4.1.9.9.604.1.6.1.1.2 |
cdot1agMaFormatThe type (and thereby format) of the Maintenance Association
Name.rw Cdot1agMaintAssocNameType .1.3.6.1.4.1.9.9.604.1.6.1.1.3 |
cdot1agMaNameThe Short Maintenance Association name. The type/format of
this object is determined by the value of the
cdot1agMaNameType object.rw Cdot1agMaintAssocName .1.3.6.1.4.1.9.9.604.1.6.1.1.4 |
cdot1agMaMhfCreationIndicates if the Management entity can create MHFs (MIP Half
Function) for this MA.rw Cdot1agMhfCreation .1.3.6.1.4.1.9.9.604.1.6.1.1.5 |
cdot1agMaIdPermissionEnumerated value indicating what, if anything, is to be
included in the Sender ID TLV (21.5.3) transmitted by MPs
configured in this MA.rw Cdot1agIdPermission .1.3.6.1.4.1.9.9.604.1.6.1.1.6 |
cdot1agMaCcmIntervalInterval between CCM transmissions to be used by all MEPs
in the MA.rw Cdot1agCcmInterval .1.3.6.1.4.1.9.9.604.1.6.1.1.7 |
cdot1agMaNumberOfVidsThe number of VIDs associated with the MA.rw Unsigned32 .1.3.6.1.4.1.9.9.604.1.6.1.1.8 |
cdot1agMaRowStatusThe status of the row.
The writable columns in a row can not be changed if the row
is active. All columns must have a valid value before a row
can be activated.rw RowStatus (SNMPv2-TC) .1.3.6.1.4.1.9.9.604.1.6.1.1.9 |
cdot1agMaMepListTableList of MEPIDs (in any bridge) that belong to the same MA.
Clause 12.14.6.1.3 specifies that a list of MEPIDs in all
bridges in that MA, but since SNMP SMI does not allow to
state in a MIB that an object in a table is an array, the
information has to be stored in another table with two
indices, being the first index, the index of the table that
contains the list or array. SEQUENCE OF Cdot1agMaMepListEntry .1.3.6.1.4.1.9.9.604.1.6.3 |
cdot1agMaMepListEntryThe known MEPS table entry. Cdot1agMaMepListEntry .1.3.6.1.4.1.9.9.604.1.6.3.1 |
cdot1agMaMepListIdentifierMEPID Cdot1agMepId .1.3.6.1.4.1.9.9.604.1.6.3.1.1 |
cdot1agMaMepListRowStatusThe status of the row. Read SNMPv2-TC (RFC1903) for an
explanation of the possible values this object can take.rw RowStatus (SNMPv2-TC) .1.3.6.1.4.1.9.9.604.1.6.3.1.2 |
cdot1agMep OBJECT IDENTIFIER .1.3.6.1.4.1.9.9.604.1.7 |
cdot1agMepTableThe Maintenance Association End Point (MEP) table.
Each row in the table represents a different MEP. A MEP is
an actively managed CFM entity, associated with a specific
DSAP of a Service Instance, which can generate and receive
CFM PDUs and track any responses. It is an end point of a
single Maintenance Association, and is an endpoint of a
separate Maintenance Entity for each of the other MEPs in
the same Maintenance Association (802.1ag clause 3.18).
This table uses three indices. The first two indices are the
indices of the Maintenance Domain and MA tables, the reason
being that a MEP is always related to an MA and Maintenance
Domain.
The Transmit Loopback table. Entries in this table are
created/removed at the same time than entries in the MEP
table are created/removed.
The MEP table also stores all the managed objects for sending
LBM and LTM.
*LBM Managed objects
LBM Managed objects in the MEP table
enables the management entity to initiate
transmission of Loopback messages. It will signal the MEP
that it should transmit some number of Loopback messages
and detect the detection (or lack thereof) of the
corresponding Loopback messages.
Steps to use entries in this table:
1) Wait for cdot1agMepTransmitLbmStatus value to be
'ready'. To do this do this sequence:
a. an SNMP GET for both SnmpSetSerialNo and
cdot1agMepTransmitLbmStatus objects (in same SNMP
PDU).
b. Check if value for cdot1agMepTransmitLbmStatus is
'ready'
- if not, wait x seconds, go to step a above.
- if yes, save the value of SnmpSetSerialNo and go
to step 2) below
2) Change cdot1agMepTransmitLbmStatus value from 'ready' to
'notReady' to ensure no other management entity will use
the service. In order to not disturb a possible other NMS
do this by sending an SNMP SET for both SnmpSetSerialNo
and cdot1agMepTransmitLbmStatus objects (in same SNMP
PDU, and make sure SNmpSetSerialNo is the first varBind).
For the SnmpSetSerialNo varBind, use the value that you
obtained in step 1)a.. This ensures that two cooperating
NMSes will not step on each others toes.
3) Setup the different data to be sent (number of messages,
optional TLVs,...).
4) Record the current values of cdot1agMepLbrIn,
cdot1agMepLbrInOutOfOrder, and cdot1agMepLbrBadMsdu.
6) Change cdot1agMepTransmitLbmStatus value from 'notReady'
to 'transmit' to initiate transmission of Loopback
messages.
7) Check the value of cdot1agMepTransmitLbmResultOK to
find out if the operation was successfully initiated or
not.
8) Monitor the value of cdot1agMepTransmitLbmMessages.
When it reaches 0, the last LBM has been transmitted.
Wait an additional 5 seconds to ensure that all LBRs have
been returned.
9) Compare cdot1agMepLbrIn, cdot1agMepLbrInOutOfOrder,
and cdot1agMepLbrBadMsdu to their old values from step
4, above, to get the results of the test.
10) Change the cdot1agMepTransmitLbmStatus value back to
'ready' to allow other management entities to use the
table.
*LTM Managed objects
The LTM Managed objects in the MEP table are used in a manner
similar to that described for LBM transmission, above. Upon
successfully initiating the transmission, the variables
cdot1agMepTransmitLtmSeqNumber and
cdot1agMepTransmitLtmEgressIdentifier return the information
required to recover the results of the LTM from the
cdot1agLtrTable. SEQUENCE OF Cdot1agMepEntry .1.3.6.1.4.1.9.9.604.1.7.1 |
cdot1agMepEntryThe MEP table entry Cdot1agMepEntry .1.3.6.1.4.1.9.9.604.1.7.1.1 |
cdot1agMepIdentifierInteger that is unique among all the MEPs in the same MA.
Other definition is: a small integer, unique over a given
Maintenance Association, identifying a specific Maintenance
association End Point (3.19).
MEP Identifier is also known as the MEPID. Cdot1agMepId .1.3.6.1.4.1.9.9.604.1.7.1.1.1 |
cdot1agMepIfIndexThis object is the interface index of the interface either a
bridge port, or an aggregated IEEE 802.1 link within a bridge
port, to which the MEP is attached.
Upon a restart of the system, the system SHALL, if necessary,
change the value of this variable so that it indexes the
entry in the interface table with the same value of ifAlias
that it indexed before the system restart. If no such
entry exists, then the system SHALL set this variable to 0.rw InterfaceIndexOrZero (IF-MIB) .1.3.6.1.4.1.9.9.604.1.7.1.1.2 |
cdot1agMepDirectionThe direction in which the MEP faces on the Bridge port.rw Cdot1agMpDirection .1.3.6.1.4.1.9.9.604.1.7.1.1.3 |
cdot1agMepPrimaryVidAn integer indicating the Primary VID of the MEP, always
one of the VIDs assigned to the MEP's MA. The value 0
indicates that either the Primary VID is that of the
MEP's MA, or that the MEP's MA is associated with no VID.rw Unsigned32 .1.3.6.1.4.1.9.9.604.1.7.1.1.4 |
cdot1agMepActiveAdministrative state of the MEP
A Boolean indicating the administrative state of the MEP.
True indicates that the MEP is to function normally, and
false that it is to cease functioning.rw TruthValue (SNMPv2-TC) .1.3.6.1.4.1.9.9.604.1.7.1.1.5 |
cdot1agMepFngStateCurrent state of the MEP Fault Notification Generator
State Machine.ro Cdot1agFngState .1.3.6.1.4.1.9.9.604.1.7.1.1.6 |
cdot1agMepCciEnabledIf set to true, the MEP will generate CCM messages.rw TruthValue (SNMPv2-TC) .1.3.6.1.4.1.9.9.604.1.7.1.1.7 |
cdot1agMepCcmLtmPriorityThe priority value for CCMs and LTMs transmitted by the MEP.
Default Value in the highest priority value allowed to pass
through the bridge port for any of this MEPs VIDs.
The management entity can obtain the default value for this
variable from the priority regeneration table by extracting the
highest priority value in this table on this MEPs bridge port.
(1 is lowest, then 2, then 0, then 3-7).rw Unsigned32 .1.3.6.1.4.1.9.9.604.1.7.1.1.8 |
cdot1agMepMacAddressMAC address of the MEP.ro MacAddress (SNMPv2-TC) .1.3.6.1.4.1.9.9.604.1.7.1.1.9 |
cdot1agMepLowPrDefAn integer value specifying the lowest priority defect
that is allowed to generate fault alarm.rw Cdot1agLowestAlarmPri .1.3.6.1.4.1.9.9.604.1.7.1.1.10 |
cdot1agMepFngAlarmTimeThe time that defects must be present before a Fault Alarm is
issued (fngAlarmTime. 20.33.3) (default 2.5s).rw TimeInterval .1.3.6.1.4.1.9.9.604.1.7.1.1.11 |
cdot1agMepFngResetTimeThe time that defects must be absent before re-enabling a
Fault Alarm (fngResetTime, 20.33.4) (default 10s).rw TimeInterval .1.3.6.1.4.1.9.9.604.1.7.1.1.12 |
cdot1agMepHighestPrDefectThe highest priority defect that has been present since the
MEPs Fault Notification Generator State Machine was last in
the FNG_RESET state.ro Cdot1agHighestDefectPri .1.3.6.1.4.1.9.9.604.1.7.1.1.13 |
cdot1agMepDefectsA vector of Boolean error conditions from Table 20-1, any of
which may be true:
DefRDICCM(0)
DefMACstatus(1)
DefRemoteCCM(2)
DefErrorCCM(3)
DefXconCCM(4)ro Cdot1agMepDefects .1.3.6.1.4.1.9.9.604.1.7.1.1.14 |
cdot1agMepErrorCcmLastFailureThe last-received CCM that triggered an DefErrorCCM fault.ro OCTET STRING .1.3.6.1.4.1.9.9.604.1.7.1.1.15 |
cdot1agMepXconCcmLastFailureThe last-received CCM that triggered a DefXconCCM fault.ro OCTET STRING .1.3.6.1.4.1.9.9.604.1.7.1.1.16 |
cdot1agMepCcmSequenceErrorsThe total number of out-of-sequence CCMs received from all
remote MEPs.ro Counter32 .1.3.6.1.4.1.9.9.604.1.7.1.1.17 |
cdot1agMepCciSentCcmsTotal number of Continuity Check messages transmitted.ro Counter32 .1.3.6.1.4.1.9.9.604.1.7.1.1.18 |
cdot1agMepNextLbmTransIdNext sequence number/transaction identifier to be sent in a
Loopback message. This sequence number can be zero because
it wraps around.ro Unsigned32 .1.3.6.1.4.1.9.9.604.1.7.1.1.19 |
cdot1agMepLbrInTotal number of valid, in-order Loopback Replies received.ro Counter32 .1.3.6.1.4.1.9.9.604.1.7.1.1.20 |
cdot1agMepLbrInOutOfOrderThe total number of valid, out-of-order Loopback Replies
received.ro Counter32 .1.3.6.1.4.1.9.9.604.1.7.1.1.21 |
cdot1agMepLbrBadMsdu(optional) The total number of LBRs received whose
mac_service_data_unit did not match (except for the OpCode)
that of the corresponding LBM (20.2.3).ro Counter32 .1.3.6.1.4.1.9.9.604.1.7.1.1.22 |
cdot1agMepLtmNextSeqNumberNext transaction identifier/sequence number to be sent in a
Linktrace message. This sequence number can be zero because
it wraps around.ro Unsigned32 .1.3.6.1.4.1.9.9.604.1.7.1.1.23 |
cdot1agMepUnexpLtrInThe total number of unexpected LTRs received (20.39.1).ro Counter32 .1.3.6.1.4.1.9.9.604.1.7.1.1.24 |
cdot1agMepLbrOutTotal number of Loopback Replies transmitted.ro Counter32 .1.3.6.1.4.1.9.9.604.1.7.1.1.25 |
cdot1agMepTransmitLbmStatusA Boolean flag set to true by the bridge port to indicate
that another LBM may be transmitted.
Reset to false by the MEP Loopback Initiator State Machine.rw TruthValue (SNMPv2-TC) .1.3.6.1.4.1.9.9.604.1.7.1.1.26 |
cdot1agMepTransmitLbmDestMacAddressThe Target MAC Address Field to be transmitted: A unicast
destination MAC address.
This address will be used if the value of the column
cdot1agMepTransmitLbmDestIsMepId is 'false'.rw MacAddress (SNMPv2-TC) .1.3.6.1.4.1.9.9.604.1.7.1.1.27 |
cdot1agMepTransmitLbmDestMepIdThe Maintenance association End Point Identifier of another
MEP in the same Maintenance Association to which the LBM is
to be sent.
This address will be used if the value of the column
cdot1agMepTransmitLbmDestIsMepId is 'true'.rw Cdot1agMepIdOrZero .1.3.6.1.4.1.9.9.604.1.7.1.1.28 |
cdot1agMepTransmitLbmDestIsMepIdTrue indicates that MEPID of the target MEP is used for
Loopback transmission.
False indicates that unicast destination MAC address of the
target MEP is used for Loopback transmission.rw TruthValue (SNMPv2-TC) .1.3.6.1.4.1.9.9.604.1.7.1.1.29 |
cdot1agMepTransmitLbmMessagesThe number of Loopback messages to be transmitted.rw Integer32 .1.3.6.1.4.1.9.9.604.1.7.1.1.30 |
cdot1agMepTransmitLbmDataTlvAn arbitrary amount of data to be included in the Data TLV,
if the Data TLV is selected to be sent.rw OCTET STRING .1.3.6.1.4.1.9.9.604.1.7.1.1.31 |
cdot1agMepTransmitLbmVlanPriorityPriority. 3 bit value to be used in the VLAN tag, if present
in the transmitted frame.
The default value is CCM priority.rw Integer32 .1.3.6.1.4.1.9.9.604.1.7.1.1.32 |
cdot1agMepTransmitLbmVlanDropEnableDrop Enable bit value to be used in the VLAN tag, if present
in the transmitted frame.
For more information about VLAN Drop Enable, please check
IEEE 802.1ad.rw TruthValue (SNMPv2-TC) .1.3.6.1.4.1.9.9.604.1.7.1.1.33 |
cdot1agMepTransmitLbmResultOKIndicates the result of the operation:
- true The Loopback Message(s) will be
(or has been) sent.
- false The Loopback Message(s) will not
be sent.ro TruthValue (SNMPv2-TC) .1.3.6.1.4.1.9.9.604.1.7.1.1.34 |
cdot1agMepTransmitLbmSeqNumberThe Loopback Transaction Identifier
(cdot1agMepNextLbmTransId) of the first LBM (to be) sent.
The value returned is undefined if
cdot1agMepTransmitLbmResultOK is false.ro Unsigned32 .1.3.6.1.4.1.9.9.604.1.7.1.1.35 |
cdot1agMepTransmitLtmStatusA Boolean flag set to true by the bridge port to indicate
that another LTM may be transmitted.
Reset to false by the MEP Linktrace Initiator State Machine.ro TruthValue (SNMPv2-TC) .1.3.6.1.4.1.9.9.604.1.7.1.1.36 |
cdot1agMepTransmitLtmFlagsThe flags field for LTMs transmitted by the MEP.rw Bits .1.3.6.1.4.1.9.9.604.1.7.1.1.37 |
cdot1agMepTransmitLtmTargetMacAddressThe Target MAC Address Field to be transmitted: A unicast
destination MAC address.
This address will be used if the value of the column
cdot1agMepTransmitLtmTargetIsMepId is 'false'.rw MacAddress (SNMPv2-TC) .1.3.6.1.4.1.9.9.604.1.7.1.1.38 |
cdot1agMepTransmitLtmTargetMepIdAn indication of the Target MAC Address Field to be
transmitted:
The Maintenance association End Point Identifier of
another MEP in the same Maintenance Association
This address will be used if the value of the column
cdot1agMepTransmitLtmTargetIsMepId is 'true'.rw Cdot1agMepIdOrZero .1.3.6.1.4.1.9.9.604.1.7.1.1.39 |
cdot1agMepTransmitLtmTargetIsMepIdTrue indicates that MEPID of the target MEP is used for
Linktrace transmission.
False indicates that unicast destination MAC address of the
target MEP is used for Loopback transmission.rw TruthValue (SNMPv2-TC) .1.3.6.1.4.1.9.9.604.1.7.1.1.40 |
cdot1agMepTransmitLtmTtlThe LTM TTL field. Default value, if not specified, is 64.
The TTL field indicates the number of hops remaining to the
LTM. Decremented by 1 by each Linktrace Responder that
handles the LTM. The value received in the LTM is returned
in the LTR. If 0 on input, the LTM is not transmitted to the
next hop.rw Unsigned32 .1.3.6.1.4.1.9.9.604.1.7.1.1.41 |
cdot1agMepTransmitLtmResultIndicates the result of the operation:
- true The Linktrace Message will be (or has been) sent.
- false The Linktrace Message will not be sentro TruthValue (SNMPv2-TC) .1.3.6.1.4.1.9.9.604.1.7.1.1.42 |
cdot1agMepTransmitLtmSeqNumberThe LTM Transaction Identifier
(cdot1agMepLtmNextSeqNumber) of the LTM sent.
The value returned is undefined if
cdot1agMepTransmitLtmResult is false.ro Unsigned32 .1.3.6.1.4.1.9.9.604.1.7.1.1.43 |
cdot1agMepTransmitLtmEgressIdentifierIdentifies the MEP Linktrace Initiator that is originating,
or the Linktrace Responder that is forwarding, this LTM.
The low-order six octets contain a 48-bit IEEE MAC address
unique to the system in which the MEP Linktrace Initiator
or Linktrace Responder resides. The high-order two octets
contain a value sufficient to uniquely identify the MEP
Linktrace Initiator or Linktrace Responder within that system.
For most Bridges, the address of any MAC attached to the
Bridge will suffice for the low-order six octets, and 0 for
the high-order octets. In some situations, e.g. if multiple
virtual Bridges utilizing emulated LANs are implemented in a
single physical system, the high-order two octets can be used
to differentiate among the transmitting entities.
The value returned is undefined if
cdot1agMepTransmitLtmResult is false.rw OCTET STRING .1.3.6.1.4.1.9.9.604.1.7.1.1.44 |
cdot1agMepRowStatusThe status of the row.
The writable columns in a row can not be changed if the row
is active. All columns must have a valid value before a row
can be activated.rw RowStatus (SNMPv2-TC) .1.3.6.1.4.1.9.9.604.1.7.1.1.45 |
cdot1agLtrTableThis table extends the MEP table and contains a list of
Linktrace replies received by a specific MEP in response to
a linktrace message.
SNMP SMI does not allow to state in a MIB that an object in
a table is an array. The solution is to take the index (or
indices) of the first table and add one or more indices. SEQUENCE OF Cdot1agLtrEntry .1.3.6.1.4.1.9.9.604.1.7.2 |
cdot1agLtrEntryThe Linktrace Reply table entry. Cdot1agLtrEntry .1.3.6.1.4.1.9.9.604.1.7.2.1 |
cdot1agLtrSeqNumberTransaction identifier/Sequence number returned by a previous
transmit linktrace message command, indicating which LTM's
response is going to be returned. Unsigned32 .1.3.6.1.4.1.9.9.604.1.7.2.1.1 |
cdot1agLtrReceiveOrderAn index to distinguish among multiple LTRs with the same LTR
Transaction Identifier field value. cdot1agLtrReceiveOrder
are assigned sequentially from 1, in the order that the
Linktrace Initiator received the LTRs. Unsigned32 .1.3.6.1.4.1.9.9.604.1.7.2.1.2 |
cdot1agLtrTtlTTL field value for a returned LTR.ro Unsigned32 .1.3.6.1.4.1.9.9.604.1.7.2.1.3 |
cdot1agLtrForwardedIndicates if a LTM was forwarded by the responding MP, as
returned in the 'FwdYes' flag of the flags field.ro TruthValue (SNMPv2-TC) .1.3.6.1.4.1.9.9.604.1.7.2.1.4 |
cdot1agLtrTerminalMepA boolean value stating whether the forwarded LTM reached a
MEP enclosing its MA, as returned in the Terminal MEP flag of
the Flags field.ro TruthValue (SNMPv2-TC) .1.3.6.1.4.1.9.9.604.1.7.2.1.5 |
cdot1agLtrLastEgressIdentifierAn octet field holding the Last Egress Identifier returned
in the LTR Egress Identifier TLV of the LTR.
The Last Egress Identifier identifies the MEP Linktrace
Initiator that originated, or the Linktrace Responder that
forwarded, the LTM to which this LTR is the response. This
is the same value as the Egress Identifier TLV of that LTM.ro OCTET STRING .1.3.6.1.4.1.9.9.604.1.7.2.1.6 |
cdot1agLtrNextEgressIdentifierAn octet field holding the Next Egress Identifier returned
in the LTR Egress Identifier TLV of the LTR. The Next Egress
Identifier Identifies the Linktrace Responder that
transmitted this LTR, and can forward the LTM to the next
hop. This is the same value as the Egress Identifier TLV of
the forwarded LTM, if any. If the FwdYes bit of the Flags
field is false, the contents of this field are undefined,
i.e. any value can be transmitted, and the field is ignored
by the receiver.ro OCTET STRING .1.3.6.1.4.1.9.9.604.1.7.2.1.7 |
cdot1agLtrRelayValue returned in the Relay Action field.ro Cdot1agRelayActionFieldValue .1.3.6.1.4.1.9.9.604.1.7.2.1.8 |
cdot1agLtrChassisIdSubtypeThis object specifies the format of the Chassis ID returned
in the Sender ID TLV of the LTR, if any. This value is
meaningless if the cdot1agLtrChassisId has a length of 0.ro ClldpChassisIdSubtype .1.3.6.1.4.1.9.9.604.1.7.2.1.9 |
cdot1agLtrChassisIdThe Chassis ID returned in the Sender ID TLV of the LTR, if
any. The format of this object is determined by the
value of the cdot1agLtrChassisIdSubtype object.ro ClldpChassisId .1.3.6.1.4.1.9.9.604.1.7.2.1.10 |
cdot1agLtrManAddressDomainThe TDomain that identifies the type and format of
the related cdot1agMepDbManAddress object, used to access
the SNMP agent of the system transmitting the LTR. Received
in the LTR Sender ID TLV from that system.
Typical values will be one of (not all inclusive) list:
snmpUDPDomain (from SNMPv2-TM, RFC3417)
snmpIeee802Domain (from SNMP-IEEE802-TM-MIB, RFC4789)
The value 'zeroDotZero' (from RFC2578) indicates 'no LTR
Sender ID TLV received', in which case the related object
cdot1agMepDbManAddress must have a zero-length OCTET STRING
as a value.ro TDomain (SNMPv2-TC) .1.3.6.1.4.1.9.9.604.1.7.2.1.11 |
cdot1agLtrManAddressThe TAddress that can be used to access the SNMP
agent of the system transmitting the CCM, received in the CCM
Sender ID TLV from that system.
If the related object cdot1agLtrManAddressDomain contains
the value 'zeroDotZero', this object cdot1agLtrManAddress
must have a zero-length OCTET STRING as a value.ro TAddress (SNMPv2-TC) .1.3.6.1.4.1.9.9.604.1.7.2.1.12 |
cdot1agLtrIngressThe value returned in the Ingress Action Field of the LTM.ro Cdot1agIngressActionFieldValue .1.3.6.1.4.1.9.9.604.1.7.2.1.13 |
cdot1agLtrIngressMacMAC address returned in the ingress MAC address field.ro MacAddress (SNMPv2-TC) .1.3.6.1.4.1.9.9.604.1.7.2.1.14 |
cdot1agLtrIngressPortIdSubtypeFormat of the Ingress Port ID.ro ClldpPortIdSubtype .1.3.6.1.4.1.9.9.604.1.7.2.1.15 |
cdot1agLtrIngressPortIdIngress Port ID. The format of this object is determined by
the value of the cdot1agLtrIngressPortIdSubtype object.ro ClldpPortId .1.3.6.1.4.1.9.9.604.1.7.2.1.16 |
cdot1agLtrEgressThe value returned in the Egress Action Field of the LTM.ro Cdot1agEgressActionFieldValue .1.3.6.1.4.1.9.9.604.1.7.2.1.17 |
cdot1agLtrEgressMacMAC address returned in the egress MAC address field.ro MacAddress (SNMPv2-TC) .1.3.6.1.4.1.9.9.604.1.7.2.1.18 |
cdot1agLtrEgressPortIdSubtypeFormat of the egress Port ID.ro ClldpPortIdSubtype .1.3.6.1.4.1.9.9.604.1.7.2.1.19 |
cdot1agLtrEgressPortIdEgress Port ID. The format of this object is determined by
the value of the cdot1agLtrEgressPortIdSubtype object.ro ClldpPortId .1.3.6.1.4.1.9.9.604.1.7.2.1.20 |
cdot1agLtrOrganizationSpecificTlvAll Organization specific TLVs returned in the LTR, if
any. Includes all octets including and following the TLV
Length field of each TLV, concatenated together.ro OCTET STRING .1.3.6.1.4.1.9.9.604.1.7.2.1.21 |
cdot1agMepDbTableThe MEP Database. A database, maintained by every MEP, that
maintains received information about other MEPs in the
Maintenance Domain.
The SMI does not allow to state in a MIB that an object in
a table is an array. The solution is to take the index (or
indices) of the first table and add one or more indices. SEQUENCE OF Cdot1agMepDbEntry .1.3.6.1.4.1.9.9.604.1.7.3 |
cdot1agMepDbEntryThe MEP Database table entry. Cdot1agMepDbEntry .1.3.6.1.4.1.9.9.604.1.7.3.1 |
cdot1agMepDbRMepIdentifierMaintenance association End Point Identifier of a remote MEP
whose information from the MEP Database is to be returned. Cdot1agMepId .1.3.6.1.4.1.9.9.604.1.7.3.1.1 |
cdot1agMepDbRMepStateThe operational state of the remote MEP IFF State machines.ro Cdot1agRemoteMepState .1.3.6.1.4.1.9.9.604.1.7.3.1.2 |
cdot1agMepDbRMepFailedOkTimeThe time (SysUpTime) at which the IFF Remote MEP state machine
last entered either the RMEP_FAILED or RMEP_OK state.ro TimeStamp (SNMPv2-TC) .1.3.6.1.4.1.9.9.604.1.7.3.1.3 |
cdot1agMepDbMacAddressThe MAC address of the remote MEP.ro MacAddress (SNMPv2-TC) .1.3.6.1.4.1.9.9.604.1.7.3.1.4 |
cdot1agMepDbRdiState of the RDI bit in the last received CCM (true for
RDI=1), or false if none has been received.ro TruthValue (SNMPv2-TC) .1.3.6.1.4.1.9.9.604.1.7.3.1.5 |
cdot1agMepDbPortStatusTlvAn enumerated value of the Port status TLV received in the
last CCM from the remote MEP or the default value
psNoPortStateTLV indicating either no CCM has been received,
or that nor port status TLV was received in the last CCM.ro Cdot1agPortStatus .1.3.6.1.4.1.9.9.604.1.7.3.1.6 |
cdot1agMepDbInterfaceStatusTlvAn enumerated value of the Interface status TLV received
in the last CCM from the remote MEP or the default value
isNoInterfaceStatus TLV indicating either no CCM has been
received, or that no interface status TLV was received in
the last CCM.ro Cdot1agInterfaceStatus .1.3.6.1.4.1.9.9.604.1.7.3.1.7 |
cdot1agMepDbChassisIdSubtypeThis object specifies the format of the Chassis ID received
in the last CCM.ro ClldpChassisIdSubtype .1.3.6.1.4.1.9.9.604.1.7.3.1.8 |
cdot1agMepDbChassisIdThe Chassis ID. The format of this object is determined by the
value of the cdot1agLtrChassisIdSubtype object.ro ClldpChassisId .1.3.6.1.4.1.9.9.604.1.7.3.1.9 |
cdot1agMepDbManAddressDomainThe TDomain that identifies the type and format of
the related cdot1agMepDbManAddress object, used to access
the SNMP agent of the system transmitting the CCM. Received
in the CCM Sender ID TLV from that system.
Typical values will be one of (not all inclusive) list:
snmpUDPDomain (from SNMPv2-TM, RFC3417)
snmpIeee802Domain (from SNMP-IEEE802-TM-MIB, RFC4789)
The value 'zeroDotZero' (from RFC2578) indicates 'no LTR
Sender ID TLV received', in which case the related object
cdot1agMepDbManAddress must have a zero-length OCTET STRING
as a value.ro TDomain (SNMPv2-TC) .1.3.6.1.4.1.9.9.604.1.7.3.1.10 |
cdot1agMepDbManAddressThe TAddress that can be used to access the SNMP
agent of the system transmitting the CCM, received in the CCM
Sender ID TLV from that system.
If the related object cdot1agMepDbManAddressDomain contains
the value 'zeroDotZero', this object cdot1agMepDbManAddress
must have a zero-length OCTET STRING as a value.ro TAddress (SNMPv2-TC) .1.3.6.1.4.1.9.9.604.1.7.3.1.11 |
cdot1agConformance OBJECT IDENTIFIER .1.3.6.1.4.1.9.9.604.2 |
cdot1agCompliances OBJECT IDENTIFIER .1.3.6.1.4.1.9.9.604.2.1 |
cdot1agGroups OBJECT IDENTIFIER .1.3.6.1.4.1.9.9.604.2.2 |