CISCO-FLOW-METADATA-MIB

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Organization: Cisco Systems, Inc.

Last Updated: 2012-12-20

Category: Cisco Devices, Network Monitoring (RMON)

Description: Provides management objects for associating metadata attributes with network flows for enhanced classification on Cisco platforms.

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What Is CISCO-FLOW-METADATA-MIB?

CISCO-FLOW-METADATA-MIB is a Cisco MIB supporting the Medianet flow metadata framework, which attaches descriptive metadata attributes to network traffic flows so classification and quality information can be shared between components on a network element and across the network. It centers on a flow table (cfmMetadataFlowTable) identifying each tracked flow by protocol type, source/destination address and port, and an SSRC (synchronization source, indicating RTP media flows), plus a companion flow-attribute table carrying the actual metadata key/value pairs. This is a traffic-classification/performance-visibility MIB rather than a hardware-health MIB — it monitors which flows are being tagged with metadata and what that metadata says (e.g., application or media stream identity) rather than temperature, power, or CPU load. It is a Cisco-specific extension that depends on the broader Medianet architecture and typically works alongside Cisco IP SLA and QoS MIBs for a complete picture of media flow performance. It is deployed on Cisco routers/switches in Medianet-enabled enterprise or service-provider networks carrying voice/video traffic that benefits from flow-aware classification. Engineers can download the CISCO-FLOW-METADATA-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in CISCO-FLOW-METADATA-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 router
Cisco switch (Medianet-enabled)

Monitoring Examples

An operator would walk cfmMetadataFlowTable/cfmMetadataFlowEntry to see active flows identified by cfmMetadataFlowId, cfmMetadataFlowProtocolType, cfmMetadataFlowSrcAddr/cfmMetadataFlowSrcPort, and cfmMetadataFlowDestAddr/cfmMetadataFlowDestPort, and cross-reference cfmMetadataFlowSSRC to confirm a flow is RTP-based media traffic. The companion cfmMetadataFlowAttrTable would then be checked for the specific metadata attributes tagged to that flow, and cFlowMetadataMIBNotifs would alert if metadata association changes unexpectedly — useful for confirming a media-priority policy is correctly classifying a given video conferencing stream.

What Can Be Monitored

tracked flow identity (protocol, source/destination address and port)
RTP SSRC identification
flow metadata attribute values
flow metadata change notifications

Imported Objects

From CISCO-SMI

ciscoMgmt

OBJECT-IDENTITY

From INET-ADDRESS-MIB

InetAddress
InetAddressType
InetPortNumber

From SNMPv2-CONF

MODULE-COMPLIANCE
OBJECT-GROUP

From SNMPv2-SMI

MODULE-IDENTITY
OBJECT-TYPE
Unsigned32

From SNMPv2-TC

TEXTUAL-CONVENTION

OIDs

OID symbolic	OID numeric	Type	Access	Description
ciscoFlowMetadataMIB	1.3.6.1.4.1.9.9.789			The MIB module for managing Cisco medianet flow metadata. Metadata, in the simplest form, is data that qualifies other data. Flow metadata is data that describes a flow in the network. Metadata plays an important role in providing a framework, that makes data from one component available to another component on the same network element as well as across other network elements. MIB Table Overview: =================== This MIB consists of two tables: 1) cfmMetadataFlowTable 2) cfmMetadataFlowAttrTable cfmMetadataFlowTable provides the details about the six tuple which can uniquely identify a network traffic flow. cfmMetadataFlowAttrTable will specify flow attributes carried in the metadata flow. Flow attribute values are represented in 'Type-Value' format. cfmMetadataFlowAttrType - Represent the type of flow attribute. cfmMetadataFlowAttrValue - Represent corresponding flow attribute value. cfmMetadataFlowTable and cfmMetadataFlowAttrTable are linked together using flow ID which will map respective metadata flow attributes with the corresponding flow key.
cFlowMetadataMIBNotifs	1.3.6.1.4.1.9.9.789.0
cFlowMetadataMIBObjects	1.3.6.1.4.1.9.9.789.1
cfmMetadataFlowTable	1.3.6.1.4.1.9.9.789.1.1		not-accessible	A list of 6-tuple and flow id that is used to identify the metadata flows.
cfmMetadataFlowEntry	1.3.6.1.4.1.9.9.789.1.1.1		not-accessible	An entry containing the flow id and the 6-tuple which is used as a key to uniquely identify a metadata flow .
U32 cfmMetadataFlowId	1.3.6.1.4.1.9.9.789.1.1.1.1	Unsigned32	not-accessible	ID that uniquely identifies this metadata flow. It is dynamically generated once the flow key information is available and assigned to the flow.
INT cfmMetadataFlowProtocolType	1.3.6.1.4.1.9.9.789.1.1.1.2	INTEGER	read-only	The protocol type of this metadata flow.
IPt cfmMetadataFlowDestAddrType	1.3.6.1.4.1.9.9.789.1.1.1.3	InetAddressType	read-only	The type of destination Internet address of this metadata flow.
IP cfmMetadataFlowDestAddr	1.3.6.1.4.1.9.9.789.1.1.1.4	InetAddress	read-only	The destination Internet address of this metadata flow. The type of this address is determined by the value of cfmMetadataFlowDestAddrType.
INE cfmMetadataFlowDestPort	1.3.6.1.4.1.9.9.789.1.1.1.5	InetPortNumber	read-only	The destination port of this metadata flow.
IPt cfmMetadataFlowSrcAddrType	1.3.6.1.4.1.9.9.789.1.1.1.6	InetAddressType	read-only	The type of source Internet address of this metadata flow.
IP cfmMetadataFlowSrcAddr	1.3.6.1.4.1.9.9.789.1.1.1.7	InetAddress	read-only	The source Internet address of this metadata flow. The type of this address is determined by the value of cfmMetadataFlowSrcAddrType.
INE cfmMetadataFlowSrcPort	1.3.6.1.4.1.9.9.789.1.1.1.8	InetPortNumber	read-only	The source port of this metadata flow.
U32 cfmMetadataFlowSSRC	1.3.6.1.4.1.9.9.789.1.1.1.9	Unsigned32	read-only	The Synchronization Source Identifier (SSRC) of this metadata flow.
cfmMetadataFlowAttrTable	1.3.6.1.4.1.9.9.789.1.2		not-accessible	A list of metadata flows and their additional attribute parameters. cfmMetadataFlowAttrTable object is superseded by cfmMetadataFlowAttribTable.
cfmMetadataFlowAttrEntry	1.3.6.1.4.1.9.9.789.1.2.1		not-accessible	An entry containing additional attribute parameter for a particular metadata flow. cfmMetadataFlowAttrEntry object is superseded by cfmMetadataFlowAttribEntry.
CFM cfmMetadataFlowAttrType	1.3.6.1.4.1.9.9.789.1.2.1.1	CfmMetadataFlowAttributeType	read-only	The attribute type applicable to a given metadata flow. The attribute types are explained in CfmMetadataFlowAttrType. cfmMetadataFlowAttrType object is superseded by cfmMetadataIpFixIeId.
CFM cfmMetadataFlowAttrValue	1.3.6.1.4.1.9.9.789.1.2.1.2	CfmMetadataFlowAttrVal	read-only	The attribute value associated with the attribute type of a given metadata flow. cfmMetadataFlowAttrValue object is superseded by cfmMetadataFlowAttribValue.
cfmMetadataFlowAllAttrTable	1.3.6.1.4.1.9.9.789.1.3		not-accessible	A list of metadata flows and their additional attribute parameters.
cfmMetadataFlowAllAttrEntry	1.3.6.1.4.1.9.9.789.1.3.1		not-accessible	An entry containing additional attribute parameter for a particular metadata flow.
U32 cfmMetadataIpFixIeId	1.3.6.1.4.1.9.9.789.1.3.1.1	Unsigned32	not-accessible	The attribute IPFix IE-ID associated with the attribute of a given metadata flow. Logically, IE-ID is only 15 bits, but in existing transports, such as the actual IPFIX transport protocol, and Cisco metadata signaling in RSVP, the IE-ID is encoded as a uint16. If the high-order bit is 0, then it indicates that VendorID is 0 (IANA = IETF standardized attributes).
U32 cfmMetadataFlowAllAttrInstanceId	1.3.6.1.4.1.9.9.789.1.3.1.2	Unsigned32	not-accessible	The attribute arbitrary instance, assigned locally by the implementation, associated with the attribute IPFix IE-ID of a given metadata flow.
OCT cfmMetadataFlowAllAttrValue	1.3.6.1.4.1.9.9.789.1.3.1.3	OCTET STRING	read-only	The attribute value associated with the attribute IPFix IE-ID of a given metadata flow.
U32 cfmMetadataFlowAllAttrPen	1.3.6.1.4.1.9.9.789.1.3.1.4	Unsigned32	read-only	The attribute IANA Private Enterprise Number associated with vendor for the attribute IPFix IE-ID of a given metadata flow.
cFlowMetadataMIBConform	1.3.6.1.4.1.9.9.789.2
cfmMetadataMIBCompliances	1.3.6.1.4.1.9.9.789.2.1
cfmMetadataMIBCompliance	1.3.6.1.4.1.9.9.789.2.1.1			The compliance statement for the CISCO-FLOW-METADATA-MIB.
cfmMetadataMIBComplianceV2	1.3.6.1.4.1.9.9.789.2.1.2			The compliance statement for the CISCO-FLOW-METADATA-MIB.
cfmMetadataMIBGroups	1.3.6.1.4.1.9.9.789.2.2
cfmMetadateFlowInfoGroup	1.3.6.1.4.1.9.9.789.2.2.1			A collection of objects which provide metadata flow information. cfmMetadateFlowInfoGroup object is superseded by cfmMetadateFlowInfoGroupV2.
cfmMetadateFlowInfoGroupV2	1.3.6.1.4.1.9.9.789.2.2.2			A collection of objects which provide metadata flow information.

RFC description

Cisco vendor-private MIB for managing flow metadata, NetFlow configuration, and traffic flow information.

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Download CISCO-FLOW-METADATA-MIB

What Is CISCO-FLOW-METADATA-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description