OSPFv2-MT-MIB

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Organization: IETF OSPF Working Group

Last Updated: 2007-08-09

Description: MIB for OSPFv2 Multi-topology routing extensions, managing per-topology areas and interfaces on routers running OSPFv2 (Cisco/F5)

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What Is OSPFv2-MT-MIB?

OSPFv2-MT-MIB is a standards-track IETF MIB (published as an Internet-Draft/RFC in progress under Internet Society copyright) that extends the standard OSPFv2-MIB to support Multi-Topology (MT) routing, where a router maintains separate topologies (e.g., for different traffic classes) within a single OSPF domain. Because no sample objects were supplied for this batch, the specific per-topology table names cannot be confirmed here, but by design such a MIB would expose per-topology area and interface configuration and status objects layered on top of the base OSPF areas and interfaces. As a routing-protocol extension MIB it is primarily used to confirm the software-level operational correctness of multi-topology OSPF, for example whether each topology's areas and interfaces are in the expected state, rather than physical hardware health. It explicitly requires and extends the base OSPFv2-MIB (RFC 4750), and depends on standard OSPF and SNMPv2-SMI/TC conventions. It is typically deployed on routers (from vendors such as Cisco or F5, per available context) that implement OSPF Multi-Topology Routing (RFC 4915) for traffic engineering or service differentiation. Engineers can download the OSPFv2-MT-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in OSPFv2-MT-MIB. Use the built-in SNMP Monitoring Browser to explore available variables, view their current values and descriptions, and select the objects you want to monitor. You can then create SNMP monitors, configure thresholds, and receive alerts when monitored values change.

Supported Devices

router implementing OSPF Multi-Topology Routing (vendor-neutral, standards-based MIB)

Monitoring Examples

No sample objects were provided for this MIB, so a grounded technical monitoring example cannot be given; based on the module description, one would expect per-topology extensions to the standard ospfAreaTable and ospfIfTable, but their exact object names are not confirmed here.

Imported Objects

From IF-MIB

InterfaceIndexOrZero

From OSPF-MIB

AreaID
BigMetric
Metric
RouterID
ospfAreaEntry	OBJECT-TYPE

From SNMPv2-CONF

MODULE-COMPLIANCE
OBJECT-GROUP

From SNMPv2-SMI

Counter32
Integer32
IpAddress
MODULE-IDENTITY
OBJECT-TYPE
mib-2

From SNMPv2-TC

RowStatus
TEXTUAL-CONVENTION
TruthValue

OIDs

OID symbolic	OID numeric	Type	Access	Description
ospfMtMIB	1.3.6.1.2.1.0			The MIB module for the management of OSPF Version 2 Multi-topology routing. This MIB module is used in conjunction with the OSFPv2 MIB module to support the Multi-topology extensions. Copyright (C) The Internet Society (2007). This version of this MIB module is part of RFC XXXX; see the RFC itself for full legal notices.
ospfMtMIBNotifications	1.3.6.1.2.1.0.0
ospfMtMIBObjects	1.3.6.1.2.1.0.1
ospfMtGeneral	1.3.6.1.2.1.0.1.1
T/F ospfMtSupport	1.3.6.1.2.1.0.1.1.1	TruthValue	read-only	This entity's support for Multi-topology routing. When this object has a value of 'true' this entity supports multi-topology routing. When the value is 'false' or when this object doesn't exist, this entity doesn't support MT routing. This object is instantiated by the agent during the managed system's initialization.
ospfMtConfiguration	1.3.6.1.2.1.0.1.2
ospfMtTable	1.3.6.1.2.1.0.1.2.1		not-accessible	A table mapping a configured topology id to a name.
ospfMtEntry	1.3.6.1.2.1.0.1.2.1.1		not-accessible	Information describing one of the topologies on the router. The managed system creates a row for the device's default topology. This row cannot be destroyed by a management station.
TOP ospfMtTopoId	1.3.6.1.2.1.0.1.2.1.1.1	TopologyID	not-accessible	The ID for a topology.
OCT ospfMtTopoName	1.3.6.1.2.1.0.1.2.1.1.2	OCTET STRING	read-only	The name of the topology.
ROW ospfMtTopoStatus	1.3.6.1.2.1.0.1.2.1.1.3	RowStatus	read-create	This object permits management of the table by facilitating actions such as row creation, construction and destruction. The value of this object has no effect on whether other objects in this conceptual row can be modified.
ospfMt	1.3.6.1.2.1.0.1.3
ospfMtAreaTable	1.3.6.1.2.1.0.1.3.1		not-accessible	Information describing area parameters supporting Multi-topology routing. The entries in this table augment the entries contained within the ospfAreaTable; an augmenting entry is created by the managed system when the value of ospfMtSupport is 'true'.
ospfMtAreaEntry	1.3.6.1.2.1.0.1.3.1.1		not-accessible	Information describing the configured parameters and cumulative statistics of one of the router's attached areas.
T/F ospfMtAreaExclusion	1.3.6.1.2.1.0.1.3.1.1.1	TruthValue	read-only	Describes the area's MT default exclusion capability.
ospfMtAreaTopoTable	1.3.6.1.2.1.0.1.3.2		not-accessible	Information describing the configured parameters and cumulative statistics of the router's topologies in an area.
ospfMtAreaTopoEntry	1.3.6.1.2.1.0.1.3.2.1		not-accessible	Information describing the configured parameters and cumulative statistics of a topology in an area.
TOP ospfMtAreaTopoId	1.3.6.1.2.1.0.1.3.2.1.1	TopologyID	not-accessible	The ID for a topology; this can be derived from the OSPF instance.
ARE ospfMtAreaId	1.3.6.1.2.1.0.1.3.2.1.2	AreaID	not-accessible	The 32 bit identifier for the Area. On creation, this can be derived from the OSPF instance.
C32 ospfMtSpfRuns	1.3.6.1.2.1.0.1.3.2.1.3	Counter32	read-only	The number of times the SPF is run for a given topology.
INT ospfMtAreaSummary	1.3.6.1.2.1.0.1.3.2.1.4	INTEGER	read-create	This object controls the importation of summary LSAs into stub areas. It has no effect on other areas. If its value is 'noAreaSummary', the router will neither originate nor propagate summary LSAs into the stub area. It will rely entirely on its default route. If its value is 'sendAreaSummary', the router will both summarize and propagate summary LSAs.
ROW ospfMtAreaTopoStatus	1.3.6.1.2.1.0.1.3.2.1.5	RowStatus	read-create	This object permits management of the table by facilitating actions such as row creation, construction and destruction. The value of this object has no effect on whether other objects in this conceptual row can be modified.
ospfMtStubAreaTable	1.3.6.1.2.1.0.1.3.3		not-accessible	The set of metrics that will be advertised for a specific topology by a default Area Border Router into a stub area.
ospfMtStubAreaEntry	1.3.6.1.2.1.0.1.3.3.1		not-accessible	The metric for a specific topology that will be advertised by a default Area Border Router into a stub area.
TOP ospfMtStubAreaTopoId	1.3.6.1.2.1.0.1.3.3.1.1	TopologyID	not-accessible	The ID for a topology; this can be derived from the OSPF instance.
ARE ospfMtStubAreaId	1.3.6.1.2.1.0.1.3.3.1.2	AreaID	not-accessible	The 32 bit identifier for the Stub Area; this can be derived from the OSPF instance.
BIG ospfMtStubMetric	1.3.6.1.2.1.0.1.3.3.1.3	BigMetric	read-create	The metric value associated with a topology.
INT ospfMtStubMetricType	1.3.6.1.2.1.0.1.3.3.1.4	INTEGER	read-create	This object contains the type of metric advertised as a default route.
ROW ospfMtStubStatus	1.3.6.1.2.1.0.1.3.3.1.5	RowStatus	read-create	This object permits management of the table by facilitating actions such as row creation, construction and destruction. The value of this object has no effect on whether other objects in this conceptual row can be modified.
ospfMtHostTable	1.3.6.1.2.1.0.1.3.4		not-accessible	The list of hosts and their associated metrics that the router will advertise as host routes.
ospfMtHostEntry	1.3.6.1.2.1.0.1.3.4.1		not-accessible	A metric to be advertised, for a specific topology, when a given host is reachable.
TOP ospfMtHostTopoId	1.3.6.1.2.1.0.1.3.4.1.1	TopologyID	not-accessible	The ID for a topology.
IP ospfMtHostIpAddress	1.3.6.1.2.1.0.1.3.4.1.2	IpAddress	not-accessible	The IP Address of the Host.
MET ospfMtHostMetric	1.3.6.1.2.1.0.1.3.4.1.3	Metric	read-create	The Metric to be advertised.
ARE ospfMtHostAreaID	1.3.6.1.2.1.0.1.3.4.1.4	AreaID	read-only	The Area in which the Host Entry is to be found. By default, the area that a subsuming OSPF in- terface is in, or 0.0.0.0.
ROW ospfMtHostStatus	1.3.6.1.2.1.0.1.3.4.1.5	RowStatus	read-create	This object permits management of the table by facilitating actions such as row creation, construction and destruction. The value of this object has no effect on whether other objects in this conceptual row can be modified.
ospfMtIfMetricTable	1.3.6.1.2.1.0.1.3.5		not-accessible	The topology specific metrics for a non-virtual interface identified by the interface index.
ospfMtIfMetricEntry	1.3.6.1.2.1.0.1.3.5.1		not-accessible	A particular topology specific metric for a non-virtual interface identified by the interface index.
TOP ospfMtIfMetricTopoId	1.3.6.1.2.1.0.1.3.5.1.1	TopologyID	not-accessible	The topology specific metric being referenced. On row creation, this can be derived from the OSPF instance.
IP ospfMtIfMetricIpAddress	1.3.6.1.2.1.0.1.3.5.1.2	IpAddress	not-accessible	The IP address of this OSPF interface. On row creation, this can be derived from the OSPF instance.
NUM ospfMtIfMetricAddressLessIf	1.3.6.1.2.1.0.1.3.5.1.3	InterfaceIndexOrZero	not-accessible	For the purpose of easing the instancing of addressed and addressless interfaces, this object takes the value 0 on interfaces having IP Addresses, and the value of ifIndex for interfaces having no IP Address. On row creation, this can be derived from the OSPF instance.
MET ospfMtIfMetricValue	1.3.6.1.2.1.0.1.3.5.1.4	Metric	read-create	The metric associated with this topology.
ROW ospfMtIfMetricTopoStatus	1.3.6.1.2.1.0.1.3.5.1.5	RowStatus	read-create	This object permits management of the table by facilitating actions such as row creation, construction and destruction. The value of this object has no effect on whether other objects in this conceptual row can be modified.
ospfMtVirtIfMetricTable	1.3.6.1.2.1.0.1.3.6		not-accessible	The topology specific metrics for a virtual interface.
ospfMtVirtIfMetricEntry	1.3.6.1.2.1.0.1.3.6.1		not-accessible	A particular topology specific metric for a virtual interface.
TOP ospfMtVirtIfMetricTopoId	1.3.6.1.2.1.0.1.3.6.1.1	TopologyID	not-accessible	The topology specific metric being referenced. On row creation, this can be derived from the OSPF instance.
ARE ospfMtVirtIfMetricArea	1.3.6.1.2.1.0.1.3.6.1.2	AreaID	not-accessible	A 32 bit identifier for Area ID.
ROU ospfMtVirtIfMetricNbrRtrId	1.3.6.1.2.1.0.1.3.6.1.3	RouterID	not-accessible	A 32 bit identifier for Router ID.
IP ospfMtVirtIfMetricNbrIpAddress	1.3.6.1.2.1.0.1.3.6.1.4	IpAddress	not-accessible	A 32 bit identifier identifying virtual neighbor end point IP address.
MET ospfMtVirtIfMetricValue	1.3.6.1.2.1.0.1.3.6.1.5	Metric	read-create	The metric associated with the topology.
ROW ospfMtVirtIfMetricTopoStatus	1.3.6.1.2.1.0.1.3.6.1.6	RowStatus	read-create	This object permits management of the table by facilitating actions such as row creation, construction and destruction. The value of this object has no effect on whether other objects in this conceptual row can be modified.
ospfMtAreaAggregateTable	1.3.6.1.2.1.0.1.3.7		not-accessible	A range of IP addresses specified by an IP address/IP network mask pair. For example, class B address range of X.X.X.X with a network mask of 255.255.0.0 includes all IP addresses from X.X.0.0 to X.X.255.255. Note that if ranges are configured such that one range subsumes another range (e.g., 10.0.0.0 mask 255.0.0.0 and 10.1.0.0 mask 255.255.0.0), the most specific match is the preferred one.
ospfMtAreaAggregateEntry	1.3.6.1.2.1.0.1.3.7.1		not-accessible	A range of IP addresses specified by an IP address/IP network mask pair. For example, class B address range of X.X.X.X with a network mask of 255.255.0.0 includes all IP addresses from X.X.0.0 to X.X.255.255. Note that if ranges are range configured such that one range subsumes another range (e.g., 10.0.0.0 mask 255.0.0.0 and 10.1.0.0 mask 255.255.0.0), the most specific match is the preferred one.
TOP ospfMtAreaAggregateTopoId	1.3.6.1.2.1.0.1.3.7.1.1	TopologyID	not-accessible	The ID for a topology.
ARE ospfMtAreaAggregateAreaID	1.3.6.1.2.1.0.1.3.7.1.2	AreaID	not-accessible	The Area in which the Address Aggregate is to be found.
INT ospfMtAreaAggregateLsdbType	1.3.6.1.2.1.0.1.3.7.1.3	INTEGER	not-accessible	The type of the Address Aggregate. This field specifies the Lsdb type that this Address Aggregate applies to.
IP ospfMtAreaAggregateNet	1.3.6.1.2.1.0.1.3.7.1.4	IpAddress	not-accessible	The IP Address of the Net or Subnet indicated by the range.
IP ospfMtAreaAggregateMask	1.3.6.1.2.1.0.1.3.7.1.5	IpAddress	not-accessible	The Subnet Mask that pertains to the Net or Subnet.
INT ospfMtAreaAggregateEffect	1.3.6.1.2.1.0.1.3.7.1.6	INTEGER	read-create	Subnets subsumed by ranges either trigger the advertisement of the indicated aggregate (advertiseMatching), or result in the subnet's not being advertised at all outside the area.
ROW ospfMtAreaAggregateStatus	1.3.6.1.2.1.0.1.3.7.1.7	RowStatus	read-create	This object permits management of the table by facilitating actions such as row creation, construction and destruction. The value of this object has no effect on whether other objects in this conceptual row can be modified.
ospfMtMIBConformance	1.3.6.1.2.1.0.2
ospfMtMIBCompliances	1.3.6.1.2.1.0.2.1
ospfMIBCompliance	1.3.6.1.2.1.0.2.1.1			The compliance statement for entities which support OSPFv2 Multi-topology routing.
ospfMtMIBGroups	1.3.6.1.2.1.0.2.2
ospfMtGeneralGroup	1.3.6.1.2.1.0.2.2.1			A collection of objects used to manage OSPF entities supporting Multi-topology routing.
ospfMtConfigurationGroup	1.3.6.1.2.1.0.2.2.2			A collection of objects used to manage OSPF entities supporting Multi-topology routing.
ospfMtAreaGroup	1.3.6.1.2.1.0.2.2.3			A collection of objects used to manage OSPF entities supporting Multi-topology routing and areas.
ospfMtAreaTopoGroup	1.3.6.1.2.1.0.2.2.4			A collection of objects used to manage OSPF entities supporting Multi-topology routing.
ospfMtStubAreaGroup	1.3.6.1.2.1.0.2.2.5			A collection of objects used to manage OSPF entities supporting Multi-topology routing.
ospfMtHostGroup	1.3.6.1.2.1.0.2.2.6			A collection of objects used to manage OSPF entities supporting Multi-topology routing.
ospfMtIfMetricGroup	1.3.6.1.2.1.0.2.2.7			A collection of objects used to manage OSPF entities supporting Multi-topology routing.
ospfMtVirtIfMetricGroup	1.3.6.1.2.1.0.2.2.8			A collection of objects used to manage OSPF entities supporting Multi-topology routing.
ospfMtAreaAggregateGroup	1.3.6.1.2.1.0.2.2.9			A collection of objects used to manage OSPF entities supporting Multi-topology routing.

RFC description

OSPF Version 2 multi-topology routing extension for complex network management.

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Download OSPFv2-MT-MIB

What Is OSPFv2-MT-MIB?

Supported Devices

Monitoring Examples

This MIB depends on

Related MIBs

RFC description