CISCO-OSPF-MIB

All MIBs › CISCO-OSPF-MIB

Organization: Cisco Systems, Inc.

Last Updated: 2003-07-18

Category: Cisco Devices, Routing Protocols

Description: Manages Cisco-specific OSPF routing protocol implementation details including sham link support, extending the standard OSPF-MIB.

IPNetwork Monitor uses several OIDs from this MIB in network discovery and polling the applicable devices. Start monitoring CISCO-OSPF-MIB with a free 30-day trial of IPNetwork Monitor.

What Is CISCO-OSPF-MIB?

This is a Cisco enterprise MIB module that extends the standard OSPF-MIB (RFC 1850) to manage Cisco-specific implementation details of the OSPF routing protocol, including support for OSPF sham links used in MPLS VPN environments. Its object tree, as reflected in cospfGeneralGroup, is organized around Cisco's additions to standard OSPF configuration and state objects, complementing rather than replacing the base RFC OSPF-MIB tables for areas, interfaces, and neighbors. Rather than hardware sensors, this MIB is used to monitor the software/protocol-level health of OSPF routing—sham link status and general OSPF process parameters—helping detect routing adjacency or configuration problems on Cisco routers. It explicitly depends on and extends RFC 1850's OSPF-MIB and the OSPF MIB update draft, so it must be read alongside the standard OSPF-MIB rather than in isolation. It is deployed on Cisco routers running OSPF, particularly in MPLS VPN backbones where sham links are used to force intra-area paths across a VPN backbone. Network engineers searching for the cisco ospf mib specifically use it to audit OSPF area and interface configuration on Cisco routers via SNMP rather than the CLI.

IPNetwork Monitor allows you to monitor SNMP objects defined in CISCO-OSPF-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

Cisco routers running OSPF

Monitoring Examples

This module is largely a conformance and extension module—its objects (cospfGeneralGroup, cospfConformance, cospfGroups, cospfCompliances) describe compliance groupings rather than exposing a rich set of independent runtime data tables, so there is limited standalone monitoring data beyond what the base OSPF-MIB already provides; an admin would use it mainly to confirm which Cisco OSPF extensions (like sham-link support) an agent implements.

What Can Be Monitored

Cisco OSPF conformance/compliance group support
OSPF sham-link extension support

Imported Objects

From CISCO-SMI

ciscoExperiment

OBJECT-IDENTITY

From IF-MIB

InterfaceIndexOrZero

From INET-ADDRESS-MIB

InetAddress
InetAddressType

From OSPF-MIB

AreaID
HelloRange
Metric
PositiveInteger
RouterID
UpToMaxAge
ospfAreaEntry	OBJECT-TYPE
ospfIfEntry
ospfLsdbAreaId
ospfLsdbLsid
ospfLsdbRouterId
ospfVirtIfEntry

From SNMPv2-CONF

MODULE-COMPLIANCE
OBJECT-GROUP

From SNMPv2-SMI

Counter32
Gauge32
Integer32
IpAddress
MODULE-IDENTITY
OBJECT-TYPE
Unsigned32

From SNMPv2-TC

TruthValue

How to Use in IPNetwork Monitor

Example using cospfAreaNssaTranslatorEvents OID:

Select a Cisco routers running OSPF as the target host to create a monitor — the SNMP service should be up and running on it. Click New Monitor, then check SNMP Custom on the Favorites tab, click Next, and confirm the host. On the next page, click Select... to open the built-in SNMP MIB Browser and type cospfAreaNssaTranslatorEvents into the Find box to locate it in the OID tree, selecting the specific row/instance you want to monitor since this is a table column, then select it and click OK. Indicates the number of Translator State changes that have occurred since the last boot-up. On the monitor's Main parameters page you can set the target's SNMP port (default 161), credentials, polling interval, and other settings — see the SNMP Monitor help for details. On the State conditions and Alerting tabs, configure when the monitor should change state and trigger an alert; since this is a Counter32-type OID, Value bounds is the most useful condition here — trigger an alert if the counter increases sharply between polls relative to its normal baseline, since an unexpected spike often reflects a real change in traffic or activity. Click Finish to create the monitor; you can adjust any parameter later.

OIDs

OID symbolic	OID numeric	Type	Access	Description
cospf	1.3.6.1.4.1.9.10.99			An extension to the MIB module defined in RFC 1850 for managing OSPF implimentation. Most of the MIB definitions are based on the IETF draft . Support for OSPF Sham link is also added
cospfGeneralGroup	1.3.6.1.4.1.9.10.99.1
T/F cospfRFC1583Compatibility	1.3.6.1.4.1.9.10.99.1.1	TruthValue	read-only	Indicates metrics used to choose among multiple AS- external-LSAs. When cospfRFC1583Compatibility is set to enabled, only cost will be used when choosing among multiple AS-external-LSAs advertising the same destination. When cospfRFC1583Compatibility is set to disabled, preference will be driven first by type of path using cost only to break ties.
T/F cospfOpaqueLsaSupport	1.3.6.1.4.1.9.10.99.1.2	TruthValue	read-only	The router's support for Opaque LSA types.
T/F cospfTrafficEngineeringSupport	1.3.6.1.4.1.9.10.99.1.3	TruthValue	read-only	The router's support for OSPF traffic engineering.
G32 cospfOpaqueASLsaCount	1.3.6.1.4.1.9.10.99.1.4	Gauge32	read-only	The total number of Opaque AS link-state advertisements in the link state database.
U32 cospfOpaqueASLsaCksumSum	1.3.6.1.4.1.9.10.99.1.5	Unsigned32	read-only	The 32-bit unsigned sum of the Opaque AS link-state advertisements' LS checksums contained link state database.
cospfAreaTable	1.3.6.1.4.1.9.10.99.2		not-accessible	Information describing the configured parameters and cumulative statistics of the router's attached areas.
cospfAreaEntry	1.3.6.1.4.1.9.10.99.2.1		not-accessible	Information describing the configured parameters and cumulative statistics of one of the router's attached areas.
G32 cospfOpaqueAreaLsaCount	1.3.6.1.4.1.9.10.99.2.1.1	Gauge32	read-only	The total number of Opaque Area and AS link-state advertisements in the link state database of this area.
U32 cospfOpaqueAreaLsaCksumSum	1.3.6.1.4.1.9.10.99.2.1.2	Unsigned32	read-only	The 32-bit unsigned sum of the Opaque Area and AS link-state advertisements' LS checksums contained link state database of this area. The sum can be used to determine if there has been a change in the link state database for Opaque Area and AS link-state advertisements
INT cospfAreaNssaTranslatorRole	1.3.6.1.4.1.9.10.99.2.1.3	INTEGER	read-only	Indicates an NSSA Border router's ability to perform NSSA translation of type-7 LSAs into type-5 LSAs.
INT cospfAreaNssaTranslatorState	1.3.6.1.4.1.9.10.99.2.1.4	INTEGER	read-only	Indicates if and how an NSSA Border router is performing NSSA translation of type-7 LSAs into type-5 LSAs. When this object set to enabled, the NSSA Border router's cospfAreaNssaExtTranslatorRole has been set to always. When this object is set to elected, a candidate NSSA Border router is Translating type-7 LSAs into type-5. When this object is set to disabled, a candidate NSSA Border router is NOT translating type-7 LSAs into type-5.
C32 cospfAreaNssaTranslatorEventsEx	1.3.6.1.4.1.9.10.99.2.1.5	Counter32	read-only	Indicates the number of Translator State changes that have occurred since the last boot-up.
cospfLsdbTable	1.3.6.1.4.1.9.10.99.3		not-accessible	The OSPF Process's Link State Database. This table is meant for Opaque LSA's
cospfLsdbEntry	1.3.6.1.4.1.9.10.99.3.1		not-accessible	A single Link State Advertisement.
INT cospfLsdbType	1.3.6.1.4.1.9.10.99.3.1.1	INTEGER	not-accessible	The type of the link state advertisement. Each link state type has a separate advertisement format.
I32 cospfLsdbSequence	1.3.6.1.4.1.9.10.99.3.1.2	Integer32	read-only	The sequence number field is a signed 32-bit integer. It is used to detect old and duplicate link state advertisements. The space of sequence numbers is linearly ordered. The larger the sequence number the more recent the advertisement.
I32 cospfLsdbAge	1.3.6.1.4.1.9.10.99.3.1.3	Integer32	read-only	This field is the age of the link state advertisement in seconds.
I32 cospfLsdbChecksum	1.3.6.1.4.1.9.10.99.3.1.4	Integer32	read-only	This field is the checksum of the complete contents of the advertisement, excepting the age field. The age field is excepted so that an advertisement's age can be incremented without updating the checksum. The checksum used is the same that is used for ISO connectionless datagrams; it is commonly referred to as the Fletcher checksum.
OCT cospfLsdbAdvertisement	1.3.6.1.4.1.9.10.99.3.1.5	OCTET STRING	read-only	The entire Link State Advertisement, including its header.
cospfIfTable	1.3.6.1.4.1.9.10.99.4		not-accessible	The OSPF Interface Table describes the inter- faces from the viewpoint of OSPF.
cospfIfEntry	1.3.6.1.4.1.9.10.99.4.1		not-accessible	The OSPF Interface Entry describes one inter- face from the viewpoint of OSPF.
G32 cospfIfLsaCount	1.3.6.1.4.1.9.10.99.4.1.1	Gauge32	read-only	The total number of link-local link state advertisements in this interface's link-local link state database.
U32 cospfIfLsaCksumSum	1.3.6.1.4.1.9.10.99.4.1.2	Unsigned32	read-only	The 32-bit unsigned sum of the link-state advertisements' LS checksums contained in this interface's link-local link state database. The sum can be used to determine if there has been a change in the interface's link state database, and to compare the interface link-state database of routers attached to the same subnet.
cospfVirtIfTable	1.3.6.1.4.1.9.10.99.5		not-accessible	Information about this router's virtual inter- faces.
cospfVirtIfEntry	1.3.6.1.4.1.9.10.99.5.1		not-accessible	Information about a single Virtual Interface.
G32 cospfVirtIfLsaCount	1.3.6.1.4.1.9.10.99.5.1.1	Gauge32	read-only	The total number of link-local link state advertisements in this virtual interface's link-local link state database.
U32 cospfVirtIfLsaCksumSum	1.3.6.1.4.1.9.10.99.5.1.2	Unsigned32	read-only	The 32-bit unsigned sum of the link-state advertisements' LS checksums contained in this virtual interface's link-local link state database. The sum can be used to determine if there has been a change in the virtual interface's link state database, and to compare the virtual interface link-state database of the virtual neighbors.
cospfShamLinkTable	1.3.6.1.4.1.9.10.99.6		not-accessible	Information about this router's sham links
cospfShamLinkEntry	1.3.6.1.4.1.9.10.99.6.1		not-accessible	Information about a single sham link
ARE cospfShamLinkAreaId	1.3.6.1.4.1.9.10.99.6.1.1	AreaID	not-accessible	The Transit Area that the Virtual Link traverses. By definition, this is not 0.0.0.0
IP cospfShamLinkLocalIpAddress	1.3.6.1.4.1.9.10.99.6.1.2	IpAddress	not-accessible	The Local IP address of the sham link.
ROU cospfShamLinkNeighborId	1.3.6.1.4.1.9.10.99.6.1.3	RouterID	not-accessible	The Router ID of the other end router of the sham link.
UPT cospfShamLinkRetransInterval	1.3.6.1.4.1.9.10.99.6.1.4	UpToMaxAge	read-only	The number of seconds between link-state advertisement retransmissions, for adjacencies belonging to this link. This value is also used when retransmitting database description and link-state request packets. This value should be well over the expected round trip time.
HEL cospfShamLinkHelloInterval	1.3.6.1.4.1.9.10.99.6.1.5	HelloRange	read-only	The length of time, in seconds, between the Hello packets that the router sends on the sham link.
NUM cospfShamLinkRtrDeadInterval	1.3.6.1.4.1.9.10.99.6.1.6	PositiveInteger	read-only	The number of seconds that a router's Hello packets have not been seen before it's neighbors declare the router down. This should be some multiple of the Hello interval.
INT cospfShamLinkState	1.3.6.1.4.1.9.10.99.6.1.7	INTEGER	read-only	OSPF sham link states.
C32 cospfShamLinkEvents	1.3.6.1.4.1.9.10.99.6.1.8	Counter32	read-only	The number of state changes or error events on this sham link
MET cospfShamLinkMetric	1.3.6.1.4.1.9.10.99.6.1.9	Metric	read-only	The Metric to be advertised.
cospfLocalLsdbTable	1.3.6.1.4.1.9.10.99.7		not-accessible	The OSPF Process's Link-Local Link State Database for non-virtual links.
cospfLocalLsdbEntry	1.3.6.1.4.1.9.10.99.7.1		not-accessible	A single Link State Advertisement.
IP cospfLocalLsdbIpAddress	1.3.6.1.4.1.9.10.99.7.1.1	IpAddress	not-accessible	The IP Address of the interface from which the LSA was received if the interface is numbered.
NUM cospfLocalLsdbAddressLessIf	1.3.6.1.4.1.9.10.99.7.1.2	InterfaceIndexOrZero	not-accessible	The Interface Index of the interface from which the LSA was received if the interface is unnumbered.
INT cospfLocalLsdbType	1.3.6.1.4.1.9.10.99.7.1.3	INTEGER	not-accessible	The type of the link state advertisement. Each link state type has a separate advertisement format.
IP cospfLocalLsdbLsid	1.3.6.1.4.1.9.10.99.7.1.4	IpAddress	not-accessible	The Link State ID is an LS Type Specific field containing a 32 bit identifier in IP address format; it identifies the piece of the routing domain that is being described by the advertisement.
ROU cospfLocalLsdbRouterId	1.3.6.1.4.1.9.10.99.7.1.5	RouterID	not-accessible	The 32 bit number that uniquely identifies the originating router in the Autonomous System.
I32 cospfLocalLsdbSequence	1.3.6.1.4.1.9.10.99.7.1.6	Integer32	read-only	The sequence number field is a signed 32-bit integer. It is used to detect old and duplicate link state advertisements. The space of sequence numbers is linearly ordered. The larger the sequence number the more recent the advertisement.
I32 cospfLocalLsdbAge	1.3.6.1.4.1.9.10.99.7.1.7	Integer32	read-only	This field is the age of the link state advertisement in seconds.
U32 cospfLocalLsdbChecksum	1.3.6.1.4.1.9.10.99.7.1.8	Unsigned32	read-only	This field is the checksum of the complete contents of the advertisement, excepting the age field. The age field is excepted so that an advertisement's age can be incremented without updating the checksum. The checksum used is the same that is used for ISO connectionless datagrams; it is commonly referred to as the Fletcher checksum.
OCT cospfLocalLsdbAdvertisement	1.3.6.1.4.1.9.10.99.7.1.9	OCTET STRING	read-only	The entire Link State Advertisement, including its header.
cospfVirtLocalLsdbTable	1.3.6.1.4.1.9.10.99.8		not-accessible	The OSPF Process's Link-Local Link State Database for virtual links.
cospfVirtLocalLsdbEntry	1.3.6.1.4.1.9.10.99.8.1		not-accessible	A single Link State Advertisement.
ARE cospfVirtLocalLsdbTransitArea	1.3.6.1.4.1.9.10.99.8.1.1	AreaID	not-accessible	The Transit Area that the Virtual Link traverses. By definition, this is not 0.0.0.0
ROU cospfVirtLocalLsdbNeighbor	1.3.6.1.4.1.9.10.99.8.1.2	RouterID	not-accessible	The Router ID of the Virtual Neighbor.
INT cospfVirtLocalLsdbType	1.3.6.1.4.1.9.10.99.8.1.3	INTEGER	not-accessible	The type of the link state advertisement. Each link state type has a separate advertisement format.
IP cospfVirtLocalLsdbLsid	1.3.6.1.4.1.9.10.99.8.1.4	IpAddress	not-accessible	The Link State ID is an LS Type Specific field containing a 32 bit identifier in IP address format; it identifies the piece of the routing domain that is being described by the advertisement.
ROU cospfVirtLocalLsdbRouterId	1.3.6.1.4.1.9.10.99.8.1.5	RouterID	not-accessible	The 32 bit number that uniquely identifies the originating router in the Autonomous System.
I32 cospfVirtLocalLsdbSequence	1.3.6.1.4.1.9.10.99.8.1.6	Integer32	read-only	The sequence number field is a signed 32-bit integer. It is used to detect old and duplicate link state advertisements. The space of sequence numbers is linearly ordered. The larger the sequence number the more recent the advertisement.
I32 cospfVirtLocalLsdbAge	1.3.6.1.4.1.9.10.99.8.1.7	Integer32	read-only	This field is the age of the link state advertisement in seconds.
U32 cospfVirtLocalLsdbChecksum	1.3.6.1.4.1.9.10.99.8.1.8	Unsigned32	read-only	This field is the checksum of the complete contents of the advertisement, excepting the age field. The age field is excepted so that an advertisement's age can be incremented without updating the checksum. The checksum used is the same that is used for ISO connectionless datagrams; it is commonly referred to as the Fletcher checksum.
OCT cospfVirtLocalLsdbAdvertisement	1.3.6.1.4.1.9.10.99.8.1.9	OCTET STRING	read-only	The entire Link State Advertisement, including its header.
cospfConformance	1.3.6.1.4.1.9.10.99.9
cospfGroups	1.3.6.1.4.1.9.10.99.9.1
cospfLsdbGroup	1.3.6.1.4.1.9.10.99.9.1.1			These objects are required for OSPF systems that display their link state database.
cospfLocalLsdbGroup	1.3.6.1.4.1.9.10.99.9.1.2			These objects are required for OSPF systems that display their Link-Local link state databases for non-virtual links.
cospfVirtLocalLsdbGroup	1.3.6.1.4.1.9.10.99.9.1.3			These objects are required for OSPF systems that display their Link-Local link state databases for virtual links.
cospfBasicGroup	1.3.6.1.4.1.9.10.99.9.1.4			These objects are required for OSPF systems.
cospfAreaGroup	1.3.6.1.4.1.9.10.99.9.1.5			These objects are required for OSPF systems supporting areas. This statement is recommended for use.
cospfIfGroup	1.3.6.1.4.1.9.10.99.9.1.6			These objects are required for OSPF systems.
cospfVirtIfGroup	1.3.6.1.4.1.9.10.99.9.1.7			These objects are required for OSPF systems.
cospfShamLinkGroup	1.3.6.1.4.1.9.10.99.9.1.8			These objects are required for OSPF systems.
cospfShamLinkNbrGroup	1.3.6.1.4.1.9.10.99.9.1.9			These objects are required for OSPF systems.
cospfShamLinksGroup	1.3.6.1.4.1.9.10.99.9.1.10			These objects are required for OSPF systems.
cospfCompliances	1.3.6.1.4.1.9.10.99.9.2
cospfCompliance	1.3.6.1.4.1.9.10.99.9.2.1			The compliance statements for agents that support the Cisco OSPF MIB. These compliance statements are deprecated by cospfComplianceRev1.
cospfComplianceRev1	1.3.6.1.4.1.9.10.99.9.2.2			The compliance statements for agents that support the Cisco OSPF MIB.
cospfShamLinkNbrTable	1.3.6.1.4.1.9.10.99.10		not-accessible	A table of sham link neighbor information.
cospfShamLinkNbrEntry	1.3.6.1.4.1.9.10.99.10.1		not-accessible	Sham link neighbor information.
ARE cospfShamLinkNbrArea	1.3.6.1.4.1.9.10.99.10.1.1	AreaID	not-accessible	The area to which the sham link is part of.
IPt cospfShamLinkNbrIpAddrType	1.3.6.1.4.1.9.10.99.10.1.2	InetAddressType	not-accessible	The type of internet address of this sham link neighbor's IP address.
IP cospfShamLinkNbrIpAddr	1.3.6.1.4.1.9.10.99.10.1.3	InetAddress	not-accessible	The IP address this sham link neighbor is using.
ROU cospfShamLinkNbrRtrId	1.3.6.1.4.1.9.10.99.10.1.4	RouterID	read-only	A 32-bit integer uniquely identifying the neighboring router.
I32 cospfShamLinkNbrOptions	1.3.6.1.4.1.9.10.99.10.1.5	Integer32	read-only	A Bit Mask corresponding to the neighbor's options field. Bit 1, if set, indicates that the system will operate on Type of Service metrics other than TOS 0. If zero, the neighbor will ignore all metrics except the TOS 0 metric. Bit 2, if set, indicates that the system is Network Multicast capable; ie, that it implements OSPF Multicast Routing.
INT cospfShamLinkNbrState	1.3.6.1.4.1.9.10.99.10.1.6	INTEGER	read-only	The state of this sham link neighbor relation- ship.
C32 cospfShamLinkNbrEvents	1.3.6.1.4.1.9.10.99.10.1.7	Counter32	read-only	The number of times this sham link has changed state or an error has occurred.
G32 cospfShamLinkNbrLsRetransQLen	1.3.6.1.4.1.9.10.99.10.1.8	Gauge32	read-only	The current length of the retransmission queue. The retransmission queue is maintained for LSAs that have been flooded but not acknowledged on this adjacency.
T/F cospfShamLinkNbrHelloSuppressed	1.3.6.1.4.1.9.10.99.10.1.9	TruthValue	read-only	Indicates whether Hellos are being suppressed to the neighbor.
cospfShamLinksTable	1.3.6.1.4.1.9.10.99.11		not-accessible	Information about this router's sham links.
cospfShamLinksEntry	1.3.6.1.4.1.9.10.99.11.1		not-accessible	Information about a single sham link.
ARE cospfShamLinksAreaId	1.3.6.1.4.1.9.10.99.11.1.1	AreaID	not-accessible	The area that this sham link is part of.
IPt cospfShamLinksLocalIpAddrType	1.3.6.1.4.1.9.10.99.11.1.2	InetAddressType	not-accessible	The type of internet address of this sham link's local IP address.
IP cospfShamLinksLocalIpAddr	1.3.6.1.4.1.9.10.99.11.1.3	InetAddress	not-accessible	The Local IP address of the sham link.
IPt cospfShamLinksRemoteIpAddrType	1.3.6.1.4.1.9.10.99.11.1.4	InetAddressType	not-accessible	The type of internet address of this sham link's remote IP address.
IP cospfShamLinksRemoteIpAddr	1.3.6.1.4.1.9.10.99.11.1.5	InetAddress	not-accessible	The IP address of the other end router of the sham link.
UPT cospfShamLinksRetransInterval	1.3.6.1.4.1.9.10.99.11.1.6	UpToMaxAge	read-only	The number of seconds between link-state advertisement retransmissions, for adjacencies belonging to this link. This value is also used when retransmitting database description and link-state request packets. This value should be well over the expected round trip time.
HEL cospfShamLinksHelloInterval	1.3.6.1.4.1.9.10.99.11.1.7	HelloRange	read-only	The length of time, in seconds, between the Hello packets that the router sends on the sham link.
NUM cospfShamLinksRtrDeadInterval	1.3.6.1.4.1.9.10.99.11.1.8	PositiveInteger	read-only	The number of seconds that a router's Hello packets have not been seen before it's neighbors declare the router down. This should be some multiple of the Hello interval.
INT cospfShamLinksState	1.3.6.1.4.1.9.10.99.11.1.9	INTEGER	read-only	OSPF sham link states.
C32 cospfShamLinksEvents	1.3.6.1.4.1.9.10.99.11.1.10	Counter32	read-only	The number of state changes or error events on this sham link
MET cospfShamLinksMetric	1.3.6.1.4.1.9.10.99.11.1.11	Metric	read-only	The Metric to be advertised.

RFC description

Extension to RFC 1850 for managing OSPF implementation with support for OSPF areas, interfaces, neighbors, and sham links.

Start monitoring Cisco routers running OSPF with a free 30-day trial of IPNetwork Monitor. Import MIBs, browse SNMP OIDs, create custom SNMP monitors, configure alerts, and monitor any SNMP-enabled network device from a single console.

Download CISCO-OSPF-MIB