CISCO-FABRICPATH-TOPOLOGY-MIB

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Organization: Cisco Systems, Inc.

Last Updated: 2013-03-11

Category: Cisco Devices, VLAN and Bridging

Description: Provides management objects for monitoring and configuring Cisco FabricPath (TRILL-like) Layer 2 multi-path topology in data center networks.

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What Is CISCO-FABRICPATH-TOPOLOGY-MIB?

CISCO-FABRICPATH-TOPOLOGY-MIB manages Cisco FabricPath, a TRILL-like Layer 2 multipathing technology used to build loop-free, multipath Ethernet fabrics in data centers. It exposes a topology table describing each configured FabricPath topology, its VLAN membership, and its administrative/operational state. The MIB supports monitoring both configuration and operational software status by reporting topology state, state-change reason codes, and active VLAN bitmaps, which help administrators confirm a topology is up and correctly carrying its intended VLANs. It is a Cisco proprietary MIB conceptually related to the IETF TRILL standard but implemented independently as FabricPath. It is deployed on Cisco Nexus data center switches running FabricPath fabrics. Engineers can download the CISCO-FABRICPATH-TOPOLOGY-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in CISCO-FABRICPATH-TOPOLOGY-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 Nexus data center switches (FabricPath)

Monitoring Examples

An administrator would poll cfptTopologyTable, indexed by cfptTopologyIndex, reading cfptTopologyState and cfptTopologyStateChangeReason to detect why a topology transitioned states, and comparing cfptTopologyVlansFirst2K/cfptTopologyVlansSecond2K against cfptTopologyActiveVlansFirst2K/cfptTopologyActiveVlansSecond2K to identify VLANs that are configured but not actively forwarding. A topology showing a down state with a non-normal cfptTopologyStateChangeReason would flag a fabric convergence problem.

What Can Be Monitored

topology administrative/operational state
state change reason
configured VLANs per topology
active VLANs per topology
topology description

Imported Objects

From CISCO-SMI

ciscoMgmt

OBJECT-IDENTITY

From CISCO-TC

Cisco2KVlanList

From IF-MIB

ifIndex

OBJECT-TYPE

From SNMP-FRAMEWORK-MIB

SnmpAdminString

From SNMPv2-CONF

MODULE-COMPLIANCE
OBJECT-GROUP

From SNMPv2-SMI

MODULE-IDENTITY
OBJECT-TYPE
Unsigned32

From SNMPv2-TC

RowStatus
StorageType

How to Use in IPNetwork Monitor

Example using cfptTopologyState OID:

Select a Cisco Nexus data center switch (FabricPath) 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 cfptTopologyState 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. This object indicates the state of the FabricPath topology. other - none of the followings up - topology is up down - topology is down. 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 an INTEGER-type OID, Value bounds is the most useful condition here — trigger an alert if the value is anything other than 'up', since that indicates the condition this object reports has changed to one worth investigating. Click Finish to create the monitor; you can adjust any parameter later.

OIDs

OID symbolic	OID numeric	Type	Access	Description
ciscoFabricPathTopologyMIB	1.3.6.1.4.1.9.9.801			This MIB module defines managed objects that facilitate the management of Cisco's FabricPath Topology technology.
ciscoFabricPathTopologyMIBNotifs	1.3.6.1.4.1.9.9.801.0
ciscoFabricPathTopologyMIBObjects	1.3.6.1.4.1.9.9.801.1
cfptTopologyTable	1.3.6.1.4.1.9.9.801.1.1		not-accessible	A table containing a list of FabricPath topology information.
cfptTopologyEntry	1.3.6.1.4.1.9.9.801.1.1.1		not-accessible	An entry containing management information of a particular FabricPath topology. An entry is created for each FabricPath topology that is managed by the system.
U32 cfptTopologyIndex	1.3.6.1.4.1.9.9.801.1.1.1.1	Unsigned32	not-accessible	An identifier that uniquely identifies a FabricPath topology.
STR cfptTopologyDescr	1.3.6.1.4.1.9.9.801.1.1.1.2	SnmpAdminString	read-create	This object specifies the description of the FabricPath topology.
INT cfptTopologyStateEx	1.3.6.1.4.1.9.9.801.1.1.1.3	INTEGER	read-only	This object indicates the state of the FabricPath topology. other - none of the followings up - topology is up down - topology is down
STR cfptTopologyStateChangeReason	1.3.6.1.4.1.9.9.801.1.1.1.4	SnmpAdminString	read-only	This object indicates the reason of the current topology state that cfptTopologyState provides.
CIS cfptTopologyVlansFirst2K	1.3.6.1.4.1.9.9.801.1.1.1.5	Cisco2KVlanList	read-create	A string of octets containing one bit per VLAN for VLANs 0 to 2047 that are configured for this FabricPath topology entry. If the bit corresponding to a VLAN is set to '1', then the VLAN is configured in this FabricPath topology. If the bit is set to '0', then the VLAN is not configured in this FabricPath topology.
CIS cfptTopologyVlansSecond2K	1.3.6.1.4.1.9.9.801.1.1.1.6	Cisco2KVlanList	read-create	A string of octets containing one bit per VLAN for VLANs 2048 to 4095 that are configured for this FabricPath topology entry. If the bit corresponding to a VLAN is set to '1', then the VLAN is configured in this FabricPath topology. If the bit is set to '0', then the VLAN is not configured in this FabricPath topology.
CIS cfptTopologyActiveVlansFirst2K	1.3.6.1.4.1.9.9.801.1.1.1.7	Cisco2KVlanList	read-only	A string of octets containing one bit per VLAN for VLANs 0 to 2047 that are active in this FabricPath topology entry. If the bit corresponding to a VLAN is set to '1', then the VLAN is active in this FabricPath topology. If the bit is set to '0', then the VLAN is not configured in this FabricPath topology.
CIS cfptTopologyActiveVlansSecond2K	1.3.6.1.4.1.9.9.801.1.1.1.8	Cisco2KVlanList	read-only	A string of octets containing one bit per VLAN for VLANs 2048 to 4095 that are active in this FabricPath topology entry. If the bit corresponding to a VLAN is set to '1', then the VLAN is active in this FabricPath topology. If the bit is set to '0', then the VLAN is not active in this FabricPath topology.
STO cfptTopologyStorageType	1.3.6.1.4.1.9.9.801.1.1.1.9	StorageType	read-create	This object specifies the storage type for this conceptual row.
ROW cfptTopologyRowStatus	1.3.6.1.4.1.9.9.801.1.1.1.10	RowStatus	read-create	The status of this conceptual row entry. This object is used to manage creation and deletion of rows in this table. When this object value is 'active', other writable objects in the same row may be modified.
cfptTopologyIfTable	1.3.6.1.4.1.9.9.801.1.2		not-accessible	A table containing a list of all FabricPath topology interfaces.
cfptTopologyIfEntry	1.3.6.1.4.1.9.9.801.1.2.1		not-accessible	An entry containing information of one interface in a FabricPath topology. An entry is created for a FabricPath capable interface that is a member of a particular FabricPath topology.
U32 cfptTopologyIfTopoIndex	1.3.6.1.4.1.9.9.801.1.2.1.1	Unsigned32	not-accessible	An identifier that uniquely identifies a FabricPath topology interface.
INT cfptTopologyIfState	1.3.6.1.4.1.9.9.801.1.2.1.2	INTEGER	read-only	This object indicates the state of a given FabricPath topology interface. other - none of the followings up - interface is up down - interface is down
STO cfptTopologyIfStorageType	1.3.6.1.4.1.9.9.801.1.2.1.3	StorageType	read-create	The objects specifies the storage type for this conceptual row.
ROW cfptTopologyIfRowStatus	1.3.6.1.4.1.9.9.801.1.2.1.4	RowStatus	read-create	The status of this conceptual row entry. This object is used to manage creation and deletion of rows in this table.
cfptTopologyIfVlanTable	1.3.6.1.4.1.9.9.801.1.3		not-accessible	A table containing a list of FabricPath interfaces and their VLAN information.
cfptTopologyIfVlanEntry	1.3.6.1.4.1.9.9.801.1.3.1		not-accessible	An entry containing VLAN information for each FabricPath interface. An entry is created for each FabricPath topology interface.
CIS cfptTopologyIfVlansFirst2K	1.3.6.1.4.1.9.9.801.1.3.1.1	Cisco2KVlanList	read-only	A string of octets containing one bit per VLAN for VLANs 0 through 2047 that are configured for the FabricPath interface specified by ifIndex in this entry. If the bit corresponding to a VLAN is set to '1', then the VLAN is configured for the interface, it is not otherwise.
CIS cfptTopologyIfVlansSecond2K	1.3.6.1.4.1.9.9.801.1.3.1.2	Cisco2KVlanList	read-only	A string of octets containing one bit per VLAN for VLANs 2048 through 4095 that are configured for the FabricPath interface specified by ifIndex in this entry. If the bit corresponding to a VLAN is set to '1', then the VLAN is configured for the interface, it is not otherwise.
CIS cfptTopologyIfActiveVlansFirst2K	1.3.6.1.4.1.9.9.801.1.3.1.3	Cisco2KVlanList	read-only	A string of octets containing one bit per VLAN for VLANs 0 through 2047 that are operational on the FabricPath interface specified by ifIndex in this entry. If the bit corresponding to a VLAN is set to '1', then the VLAN is active on the interface, it is not otherwise.
CIS cfptTopologyIfActiveVlansSecond2K	1.3.6.1.4.1.9.9.801.1.3.1.4	Cisco2KVlanList	read-only	A string of octets containing one bit per VLAN for VLANs 2048 through 4095 that are operational on the FabricPath interface specified by ifIndex in this entry. If the bit corresponding to a VLAN is set to '1', then the VLAN is active on the interface, it is not otherwise.
cfptTopologyTreeTable	1.3.6.1.4.1.9.9.801.1.4		not-accessible	A table containing a list of forwarding tree information of the FabricPath topologies.
cfptTopologyTreeEntry	1.3.6.1.4.1.9.9.801.1.4.1		not-accessible	An entry containing one forwarding tree information in a particular FabricPath topology.
U32 cfptTopologyTreeId	1.3.6.1.4.1.9.9.801.1.4.1.1	Unsigned32	not-accessible	An index number that uniquely identifies forwarding tree of a particular FabricPath topology.
U32 cfptTopologyTreeFtag	1.3.6.1.4.1.9.9.801.1.4.1.2	Unsigned32	read-only	This object indicates the tree's forwarding tag.
INT cfptTopologyTreeState	1.3.6.1.4.1.9.9.801.1.4.1.3	INTEGER	read-only	This object indicates the state of the tree. other - none of the followings active - the tree is active inactive - the tree is inactive.
INT cfptTopologyTreeType	1.3.6.1.4.1.9.9.801.1.4.1.4	INTEGER	read-only	This object indicates the type of the tree. other - none of the followings mixed - unknown unicast, broadcast and multicast tree multicast - multicast tree
ciscoFabricPathTopologyMIBConformance	1.3.6.1.4.1.9.9.801.2
cfptFabricPathTopologyMIBCompliances	1.3.6.1.4.1.9.9.801.2.1
cfptFabricPathTopologyMIBCompliance	1.3.6.1.4.1.9.9.801.2.1.1			Describes the requirements for conformance to the CISCO-FABRICPATH-TOPOLOGY-MIB.
cfptFabricPathTopologyMIBGroups	1.3.6.1.4.1.9.9.801.2.2
cfptTopologyGroup	1.3.6.1.4.1.9.9.801.2.2.1			A collection of objects providing FabricPath topology information.
cfptTopologyIfGroup	1.3.6.1.4.1.9.9.801.2.2.2			A collection of objects providing per interface FabricPath topology information.
cfptTopologyIfVlanGroup	1.3.6.1.4.1.9.9.801.2.2.3			A collection of objects providing VLAN information for each FabricPath interface.
cfptTopologyTreeGroup	1.3.6.1.4.1.9.9.801.2.2.4			A collection of objects providing FabricPath topology forwarding tree information.

RFC description

Manages Cisco FabricPath topology information and fabric-wide switching configuration.

Start monitoring Cisco Nexus data center switches (FabricPath) 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.