CISCO-SDWAN-BFD-MIB

All MIBs › CISCO-SDWAN-BFD-MIB

Organization: Cisco Systems, Inc.

Last Updated: 2021-01-26

Category: Cisco Devices, Routing Protocols

Description: Monitors Bidirectional Forwarding Detection (BFD) sessions and liveliness probes in the Cisco SD-WAN overlay fabric.

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What Is CISCO-SDWAN-BFD-MIB?

This is a Cisco-specific MIB for the SD-WAN (Viptela-derived) overlay fabric, defining objects that expose Bidirectional Forwarding Detection (BFD) session status used to detect loss of connectivity between SD-WAN edge routers over the overlay network. It exposes both summary counters and per-session detail: aggregate session totals/up/max/flap counts at the device level, and a per-session table listing each BFD session's source/destination IP, protocol, and port information. Its monitoring value centers on software/protocol-layer fault detection rather than physical hardware: BFD session state (up vs. flapping vs. down) is a fast, sub-second liveliness indicator for overlay tunnel health, and rising flap counts signal an unstable underlay path or device problem before routing protocols would otherwise notice. It is tightly coupled to Cisco's SD-WAN overlay architecture and complements standard BFD concepts with Cisco SD-WAN-specific summary and session-list structures. It is typically deployed on Cisco SD-WAN (vEdge/cEdge) routers where operators track overlay tunnel liveliness across a multi-site WAN fabric. Engineers can download the CISCO-SDWAN-BFD-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in CISCO-SDWAN-BFD-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 SD-WAN vEdge router
Cisco SD-WAN cEdge router

Monitoring Examples

An administrator would poll bfdSummaryBfdSessionsTotal, bfdSummaryBfdSessionsUp, and bfdSummaryBfdSessionsFlap for a device-wide picture of overlay tunnel health, then drill into bfdSessionsListTable/bfdSessionsListEntry to inspect individual sessions via bfdSessionsListSrcIp, bfdSessionsListDstIp, and bfdSessionsListProto. A session where bfdSummaryBfdSessionsUp is lower than bfdSummaryBfdSessionsTotal, or where bfdSummaryBfdSessionsFlap is climbing, indicates an overlay tunnel between two SD-WAN sites is unstable or down, warranting a check of the underlying transport link. The ciscoSdwanBfdMIBNotifs objects also generate traps when BFD state transitions occur.

What Can Be Monitored

total/up/max BFD sessions
BFD session flap count
per-session source/destination IP
per-session protocol and ports
BFD poll interval

Imported Objects

From CISCO-SMI

ciscoMgmt

OBJECT-IDENTITY

From SNMPv2-CONF

MODULE-COMPLIANCE
OBJECT-GROUP

From SNMPv2-SMI

Counter64
Integer32
MODULE-IDENTITY
OBJECT-TYPE
Unsigned32

From SNMPv2-TC

TEXTUAL-CONVENTION

How to Use in IPNetwork Monitor

Example using bfdHistoryListRxPkts OID:

Select a Cisco SD-WAN vEdge/cEdge router 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 bfdHistoryListRxPkts 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. It reports the received packets. 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 Counter64-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
ciscoSdwanBfdMIB	1.3.6.1.4.1.9.9.1002			This module defines data model for BFD
ciscoSdwanBfdMIBNotifs	1.3.6.1.4.1.9.9.1002.0
ciscoSdwanBfdMIBObjects	1.3.6.1.4.1.9.9.1002.1
bfd	1.3.6.1.4.1.9.9.1002.1.1
bfdSessionsListTable	1.3.6.1.4.1.9.9.1002.1.1.1		not-accessible	BFD sessions table
bfdSessionsListEntry	1.3.6.1.4.1.9.9.1002.1.1.1.1		not-accessible	BFD sessions table entry
ADR bfdSessionsListSrcIp	1.3.6.1.4.1.9.9.1002.1.1.1.1.1	InetAddressIP	not-accessible	Local TLOC IP address
ADR bfdSessionsListDstIp	1.3.6.1.4.1.9.9.1002.1.1.1.1.2	InetAddressIP	not-accessible	Remote TLOC IP address
INT bfdSessionsListProto	1.3.6.1.4.1.9.9.1002.1.1.1.1.3	INTEGER	not-accessible	Protocol or encap
UNS bfdSessionsListSrcPort	1.3.6.1.4.1.9.9.1002.1.1.1.1.4	UnsignedShort	not-accessible	Local port number
UNS bfdSessionsListDstPort	1.3.6.1.4.1.9.9.1002.1.1.1.1.5	UnsignedShort	not-accessible	Remote port number
ADR bfdSessionsListSystemIp	1.3.6.1.4.1.9.9.1002.1.1.1.1.6	InetAddressIP	read-only	System IP address
U32 bfdSessionsListSiteId	1.3.6.1.4.1.9.9.1002.1.1.1.1.7	Unsigned32	read-only	Site ID
INT bfdSessionsListLocalColor	1.3.6.1.4.1.9.9.1002.1.1.1.1.8	INTEGER	read-only	Local color
INT bfdSessionsListColor	1.3.6.1.4.1.9.9.1002.1.1.1.1.9	INTEGER	read-only	Remote color
BFD bfdSessionsListState	1.3.6.1.4.1.9.9.1002.1.1.1.1.10	BfdmgrStateEnum	read-only	State
UNS bfdSessionsListDetectMultiplier	1.3.6.1.4.1.9.9.1002.1.1.1.1.11	UnsignedByte	read-only	Detect multiplier
U32 bfdSessionsListTxInterval	1.3.6.1.4.1.9.9.1002.1.1.1.1.12	Unsigned32	read-only	Transmit interval
STR bfdSessionsListUptime	1.3.6.1.4.1.9.9.1002.1.1.1.1.13	String	read-only	Up time
I32 bfdSessionsListTransitions	1.3.6.1.4.1.9.9.1002.1.1.1.1.14	Integer32	read-only	Transitions
bfdHistoryListTable	1.3.6.1.4.1.9.9.1002.1.1.2		not-accessible	BFD session history table
bfdHistoryListEntry	1.3.6.1.4.1.9.9.1002.1.1.2.1		not-accessible	BFD session history table entry
ADR bfdHistoryListSrcIp	1.3.6.1.4.1.9.9.1002.1.1.2.1.1	InetAddressIP	not-accessible	Local TLOC IP address
ADR bfdHistoryListDstIp	1.3.6.1.4.1.9.9.1002.1.1.2.1.2	InetAddressIP	not-accessible	Remote TLOC IP address
INT bfdHistoryListProto	1.3.6.1.4.1.9.9.1002.1.1.2.1.3	INTEGER	not-accessible	Protocol or encap
UNS bfdHistoryListSrcPort	1.3.6.1.4.1.9.9.1002.1.1.2.1.4	UnsignedShort	not-accessible	Local port number
UNS bfdHistoryListDstPort	1.3.6.1.4.1.9.9.1002.1.1.2.1.5	UnsignedShort	not-accessible	Remote port number
U32 bfdHistoryListIndex	1.3.6.1.4.1.9.9.1002.1.1.2.1.6	Unsigned32	not-accessible	History index
ADR bfdHistoryListSystemIp	1.3.6.1.4.1.9.9.1002.1.1.2.1.7	InetAddressIP	read-only	System IP address
U32 bfdHistoryListSiteId	1.3.6.1.4.1.9.9.1002.1.1.2.1.8	Unsigned32	read-only	Site ID
INT bfdHistoryListColor	1.3.6.1.4.1.9.9.1002.1.1.2.1.9	INTEGER	read-only	Color
BFD bfdHistoryListState	1.3.6.1.4.1.9.9.1002.1.1.2.1.10	BfdmgrStateEnum	read-only	State
STR bfdHistoryListTime	1.3.6.1.4.1.9.9.1002.1.1.2.1.11	String	read-only	Time
C64 bfdHistoryListRxPktsEx	1.3.6.1.4.1.9.9.1002.1.1.2.1.12	Counter64	read-only	Received packets
C64 bfdHistoryListTxPkts	1.3.6.1.4.1.9.9.1002.1.1.2.1.13	Counter64	read-only	Transmit packets
UNS bfdHistoryListDel	1.3.6.1.4.1.9.9.1002.1.1.2.1.14	UnsignedByte	read-only	Del
bfdSummary	1.3.6.1.4.1.9.9.1002.1.1.5
U32 bfdSummaryBfdSessionsTotal	1.3.6.1.4.1.9.9.1002.1.1.5.1	Unsigned32	read-only	Current total number of bfd sessions created
U32 bfdSummaryBfdSessionsUp	1.3.6.1.4.1.9.9.1002.1.1.5.2	Unsigned32	read-only	Number of bfd sessions that are in UP state
U32 bfdSummaryBfdSessionsMax	1.3.6.1.4.1.9.9.1002.1.1.5.3	Unsigned32	read-only	Maximum total number of bfd sessions created since bootup
U32 bfdSummaryBfdSessionsFlap	1.3.6.1.4.1.9.9.1002.1.1.5.4	Unsigned32	read-only	Number of bfd session flaps seen (transitions out of UP state)
U32 bfdSummaryPollInterval	1.3.6.1.4.1.9.9.1002.1.1.5.5	Unsigned32	read-only	App route poll interval
bfdTlocSummaryListTable	1.3.6.1.4.1.9.9.1002.1.1.6		not-accessible	BFD TLOC summary table
bfdTlocSummaryListEntry	1.3.6.1.4.1.9.9.1002.1.1.6.1		not-accessible	BFD TLOC summary table entry
STR bfdTlocSummaryListIfName	1.3.6.1.4.1.9.9.1002.1.1.6.1.1	String	not-accessible	Local TLOC Interface
INT bfdTlocSummaryListEncap	1.3.6.1.4.1.9.9.1002.1.1.6.1.2	INTEGER	not-accessible	Local TLOC encapsulation
U32 bfdTlocSummaryListSessionsTotal	1.3.6.1.4.1.9.9.1002.1.1.6.1.3	Unsigned32	read-only	Total number of bfd sessions created
U32 bfdTlocSummaryListSessionsUp	1.3.6.1.4.1.9.9.1002.1.1.6.1.4	Unsigned32	read-only	Number of bfd sessions that are in UP state
U32 bfdTlocSummaryListSessionsFlap	1.3.6.1.4.1.9.9.1002.1.1.6.1.5	Unsigned32	read-only	Number of bfd session flaps seen (transitions out of UP state)
ciscoSdwanBfdMIBNotifObjects	1.3.6.1.4.1.9.9.1002.2
ciscoSdwanBfdMIBConform	1.3.6.1.4.1.9.9.1002.3
ciscoSdwanBfdMIBCompliances	1.3.6.1.4.1.9.9.1002.3.1
ciscoSdwanBfdMIBCompliance	1.3.6.1.4.1.9.9.1002.3.1.1			The compliance statement for the SNMP entities that implement the ciscoSdwanBfdMIB module.
ciscoSdwanBfdMIBGroups	1.3.6.1.4.1.9.9.1002.3.2
cSdwanBfdSummaryGroup	1.3.6.1.4.1.9.9.1002.3.2.1			This is a collection of objects of bfd summary.
cSdwanBfdSessionsListGroup	1.3.6.1.4.1.9.9.1002.3.2.2			This is a collection of objects of bfd sessions list.
cSdwanBfdHistoryListGroup	1.3.6.1.4.1.9.9.1002.3.2.3			This is a collection of objects of bfd history list.
cSdwanBfdTlocSummaryListGroup	1.3.6.1.4.1.9.9.1002.3.2.4			This is a collection of objects of bfd Tloc summary list.

RFC description

Monitors Bidirectional Forwarding Detection (BFD) state and statistics on Cisco SD-WAN devices.

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Download CISCO-SDWAN-BFD-MIB