H3C-BFD-STD-MIB

All MIBs › H3C-BFD-STD-MIB

Organization: H3C

Last Updated: 2006-05-08

Category: Technology: OAM, Vendor: H3C/HH3C

Description: H3C MIB for Bidirectional Forwarding Detection (BFD) sessions monitoring link failure detection state and statistics.

Start monitoring vendor-neutral, standards-based MIB, any SNMPv3-capable network device (SNMP engine identity/boot/clock status) 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.

What Is H3C-BFD-STD-MIB?

H3C-BFD-STD-MIB is an H3C enterprise MIB implementing Bidirectional Forwarding Detection (BFD), a lightweight protocol for rapid detection of failures on the forwarding path between two routers. It exposes session-level configuration (detection and transmission timers) and state data (session status, diagnostic codes) for each BFD session running on the device. Its monitoring value is a software/protocol-health one: the session state reveals almost immediately whether a link or path to a neighbor has failed, far faster than routing-protocol hold timers would, making it central to fast-failover monitoring. It closely mirrors the IETF's standard BFD MIB concepts, adapted for H3C's device family. It is typically deployed on H3C routers and switches running BFD in conjunction with routing protocols like OSPF or BGP to speed up failure detection and rerouting. Network engineers evaluating or troubleshooting this functionality can download the H3C-BFD-STD-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in H3C-BFD-STD-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

H3C routers and switches running BFD

Monitoring Examples

No sample object names were provided for this module, so specific identifiers can't be quoted here. Based on the module description, it would expose a BFD session table with objects for session state (up/down), configured detection interval, and a diagnostic code identifying the reason for the last state change. An administrator polling session state would detect a neighbor link failure within milliseconds, well before the associated routing protocol would notice via its own hold timers.

What Can Be Monitored

BFD session state (up/down)
detection/transmission timer intervals
session diagnostic code
session statistics

Imported Objects

From HUAWEI-3COM-OID-MIB

h3cCommon

OBJECT-IDENTITY

From IF-MIB

InterfaceIndex

From INET-ADDRESS-MIB

InetAddress
InetAddressType
InetPortNumber

From SNMPv2-CONF

MODULE-COMPLIANCE
NOTIFICATION-GROUP
OBJECT-GROUP

From SNMPv2-SMI

Counter32
Counter64
MODULE-IDENTITY
NOTIFICATION-TYPE
OBJECT-TYPE
Unsigned32
mib-2

From SNMPv2-TC

RowStatus
StorageType
TEXTUAL-CONVENTION
TimeStamp
TruthValue

How to Use in IPNetwork Monitor

Example using h3cBfdSessStatPktInHC OID:

Select an H3C router/switch (Bidirectional Forwarding Detection) 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 h3cBfdSessStatPktInHC 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. The total number of BFD messages received by this BFD session. 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
h3cBfdMIB	1.3.6.1.4.1.2011.10.2.72			Bidirectional Forwarding Management Information Base.
h3cBfdNotifications	1.3.6.1.4.1.2011.10.2.72.0
NTF h3cBfdSessStateChange	1.3.6.1.4.1.2011.10.2.72.0.1			A notification sent when an session changes state, entering state up or entering state down. The session will enter state up finishing three times handshakes , and will enter state down when the communication path is out of work. When the h3cBfdSessState's value is state up, the session enters state up, and the session enters state down when the h3cBfdSessState's value is state down. The h3cBfdSessIfIndex contains an interface's index under which the BFD session runs. The h3cBfdSessIndex contains an index which represents a unique BFD session on this device. The h3cBfdSessState is the state of the running BFD session.
NTF h3cBfdSessAuthFail	1.3.6.1.4.1.2011.10.2.72.0.2			A notification sent when receiving a session with an authentication fail. The h3cBfdIfIndex is an index which represents a unique BFD interface on this device.
h3cBfdObjects	1.3.6.1.4.1.2011.10.2.72.1
h3cBfdGlobalObjects	1.3.6.1.4.1.2011.10.2.72.1.1
U32 h3cBfdVersionNumber	1.3.6.1.4.1.2011.10.2.72.1.1.1	Unsigned32	read-only	It indicates the BFD session's current version number.
INT h3cBfdSysInitMode	1.3.6.1.4.1.2011.10.2.72.1.1.2	INTEGER	read-write	A system may take either an active role or a passive role in session initialization. A system taking the active role must send BFD control packets for a particular session, regardless of whether it has received any BFD packets for that session. A system taking the passive role must not begin sending BFD packets for a particular session until it has received a BFD packet for that session, and thus has learned the remote system's discriminator value.
T/F h3cBfdSessNotificationsEnable	1.3.6.1.4.1.2011.10.2.72.1.1.3	TruthValue	read-write	This variable enables the emission of h3cBfdSessStateChange and h3cBfdSessAuthFail notifications if this variable is set to true(1); otherwise these notifications are not emitted.
h3cBfdIfTable	1.3.6.1.4.1.2011.10.2.72.1.2		not-accessible	This Table describes the BFD interface specific information.
h3cBfdIfEntry	1.3.6.1.4.1.2011.10.2.72.1.2.1		not-accessible	This Entry describes the BFD interface specific information.
NUM h3cBfdIfIndex	1.3.6.1.4.1.2011.10.2.72.1.2.1.1	InterfaceIndex	accessible-for-notify	This variable contains an index that represents a unique BFD interface on this device.
NUM h3cBfdIfDesiredMinTxInterval	1.3.6.1.4.1.2011.10.2.72.1.2.1.2	BfdInterval	read-write	This variable defines the minimum interval, in microseconds, that the interface would like to use when transmitting BFD Control packets.
NUM h3cBfdIfDesiredMinRxInterval	1.3.6.1.4.1.2011.10.2.72.1.2.1.3	BfdInterval	read-write	This variable defines the minimum interval, in, microseconds, between received BFD Control packets the local system is capable of supporting.
U32 h3cBfdIfDetectMult	1.3.6.1.4.1.2011.10.2.72.1.2.1.4	Unsigned32	read-write	The desired detect time multiplier for BFD control packets. The negotiated control packet transmission interval, multiplied by this variable, will be the detection time for this session (as seen by the remote system.) The variable must be a nonzero integer.
INT h3cBfdIfAuthType	1.3.6.1.4.1.2011.10.2.72.1.2.1.5	INTEGER	read-only	The Authentication Type used for this interface. This field is valid only when the Authentication Present bit is set. The 'none' indicates the session doesn't support authentication. The 'simple' indicates the session supports simple password authentication. The 'md5' indicates the session supports Keyed MD5 authentication. The 'mmd5' indicates the session supports Meticulous Keyed MD5 authentication. The 'sha1' indicates the session supports Keyed SHA1 authentication. The 'msha1' indicates the session supports Meticulous Keyed SHA1 authentication.
h3cBfdSessTable	1.3.6.1.4.1.2011.10.2.72.1.3		not-accessible	This table describes the BFD sessions.
h3cBfdSessEntry	1.3.6.1.4.1.2011.10.2.72.1.3.1		not-accessible	This Entry describes the BFD sessions.
NUM h3cBfdSessIfIndex	1.3.6.1.4.1.2011.10.2.72.1.3.1.1	InterfaceIndex	accessible-for-notify	This variable contains an interface's index under which the BFD session runs.
BFD h3cBfdSessIndex	1.3.6.1.4.1.2011.10.2.72.1.3.1.2	BfdSessIndexTC	accessible-for-notify	This variable contains an index which represents a unique BFD session on this device.
BIT h3cBfdSessAppSupportId	1.3.6.1.4.1.2011.10.2.72.1.3.1.3	Bits	read-only	This variable contains an ID used to indicate a local application which owns or maintains this BFD session. Note, a BFD session can support several route protocols. This is a bit-map of possible conditions. The corresponding bit positions are: \|0 \|none \| \|1 \|ospf \| \|2 \|isis \| \|3 \|bgp \| \|4 \|mpls \|
U32 h3cBfdSessLocalDiscr	1.3.6.1.4.1.2011.10.2.72.1.3.1.4	Unsigned32	read-only	This variable defines the local discriminator for this BFD session, used to uniquely identify it.
U32 h3cBfdSessRemoteDiscr	1.3.6.1.4.1.2011.10.2.72.1.3.1.5	Unsigned32	read-only	This variable defines the session discriminator chosen by the remote system for this BFD session.
INE h3cBfdSessDstPort	1.3.6.1.4.1.2011.10.2.72.1.3.1.6	InetPortNumber	read-only	The UDP Port for BFD. The default value is the well-known value for this port.
INT h3cBfdSessOperMode	1.3.6.1.4.1.2011.10.2.72.1.3.1.7	INTEGER	read-only	This variable defines current operating mode that BFD session is running in. The primary mode which the BFD session runs in is known as Asynchronous mode. In this mode, the systems periodically send BFD Control packets to one another, and if a number of those packets in a row are not received by the other system, the session is declared to be down. The second mode is known as Demand mode. In this mode, it is assumed that each system has an independent way of verifying that it has connectivity to the other system. Once a BFD session is established, the systems stop sending BFD Control packets, except when either system feels the need to verify connectivity explicitly, in which case a short sequence of BFD Control packets is sent, and then the protocol quiesces. An adjunct to both modes is the Echo function. When the Echo function is active, a stream of BFD Echo packets is transmitted in such a way as to have the other system loop them back through its forwarding path. If a number of packets of the echoed data stream are not received, the session is declared to be down. The Echo function may be used with either Asynchronous or Demand modes. The 'asynchModeWOEchoFun' indicates this BFD session operates in the Asynchronous mode, and doesn't support the Echo Function. The 'demandModeWOEchoFunction' indicates this BFD session operates in the Demand mode, and doesn't support the Echo Function. The 'asyncModeWEchoFun' indicates this BFD session operates in the Asynchronous mode, and also supports the Echo Function. The 'demandModeWEchoFunction' indicates this BFD session operates in the Demand mode, and also supports the Echo Function.
IPt h3cBfdSessAddrType	1.3.6.1.4.1.2011.10.2.72.1.3.1.8	InetAddressType	read-only	This object defines IP address type of the interface associated with this BFD session. Only values unknown(0), ipv4(1) or ipv6(2) have to be supported. A value of unknown(0) is allowed only when the outgoing interface is of type point-to-point, or when the BFD session is not associated with a specific interface. If any other unsupported values are attempted in a set operation, the agent must return an inconsistentValue error.
IP h3cBfdSessLocalAddr	1.3.6.1.4.1.2011.10.2.72.1.3.1.9	InetAddress	read-only	This variable defines IP address of the local interface from which the BFD packets is transmitted. It can also be used to enabled BFD on a specific interface. The value is set to zero when BFD session is not associated with a specific interface.
IP h3cBfdSessRemoteAddr	1.3.6.1.4.1.2011.10.2.72.1.3.1.10	InetAddress	read-only	This variable defines IP address of the remote interface from which the BFD packets is transmitted. It can also be used to enabled BFD on a specific interface. The value is set to zero when BFD session is not associated with a specific interface.
BFD h3cBfdSessLocalDiag	1.3.6.1.4.1.2011.10.2.72.1.3.1.11	BfdDiag	read-only	The BFD diagnostic code for the BFD session was down with the neighbor. If no such event happens this object contains a zero value.
INT h3cBfdSessState	1.3.6.1.4.1.2011.10.2.72.1.3.1.12	INTEGER	read-only	The state of the running BFD session. There are three states through which a session normally proceeds, two for establishing a session (Init and Up) and one for tearing down a session (Down.) This allows a three-way handshake for both session establishment and session teardown (assuring that both systems are aware of all session state changes.) A fourth state (AdminDown) exists so that a session can be administratively put down indefinitely. The Down state means that the session is down (or has just been created.) A session remains in Down state until the remote system indicates that it agrees that the session is down by sending a BFD Control packet with the State field set to anything other than Up. If that packet signals Down state, the session advances to Init state; if that packet signals Init state, the session advances to Up state. Init state means that the remote system is 0communicating, and the local system desires to bring the session up, but the remote system does not yet realize it. A session will remain in Init state until either a BFD Control Packet is received that is signaling Init or Up state (in which case the session advances to Up state) or until the detection time expires, meaning that communication with the remote system has been lost (in which case the session advances to Down state.) Up state means that the BFD session has successfully been established, and implies that connectivity between the systems is working. The session will remain in the Up state until either connectivity fails, or the session is taken down administratively. If either the remote system signals Down state, or the detection time expires, the session advances to Down state. AdminDown state means that the session is being held administratively down. This causes the remote system to enter Down state, and remain there until the local system exits AdminDown state.
T/F h3cBfdSessControlPlanIndepFlag	1.3.6.1.4.1.2011.10.2.72.1.3.1.13	TruthValue	read-only	This variable indicates whether the local system can continue to work while the control plane is out of work. Specifically, it is set to true(1) if the local system is independent of the control plane. Otherwise, the value is set to false(0)
T/F h3cBfdSessAuthFlag	1.3.6.1.4.1.2011.10.2.72.1.3.1.14	TruthValue	read-only	This variable indicates that the local system wants to use Authentication. Specifically, it is set to true(1) if the local system wishes the session to be authenticated or false(0) if not.
T/F h3cBfdSessDemandModeFlag	1.3.6.1.4.1.2011.10.2.72.1.3.1.15	TruthValue	read-only	This variable indicates that the local system wants to use Demand mode. Specifically, it is set to true(1) if the local system wishes to use Demand mode or false(0) if not
h3cBfdSessStatTable	1.3.6.1.4.1.2011.10.2.72.1.4		not-accessible	The table defines BFD session state.
h3cBfdSessStatEntry	1.3.6.1.4.1.2011.10.2.72.1.4.1		not-accessible	An entry in this table is created by a BFD-enabled node for every BFD Session. It defines BFD session statistics.
C64 h3cBfdSessStatPktInHCEx	1.3.6.1.4.1.2011.10.2.72.1.4.1.1	Counter64	read-only	The total number of BFD messages received by this BFD session.
C64 h3cBfdSessStatPktOutHC	1.3.6.1.4.1.2011.10.2.72.1.4.1.2	Counter64	read-only	The total number of BFD messages sent by this BFD session.
C32 h3cBfdSessStatDownCount	1.3.6.1.4.1.2011.10.2.72.1.4.1.3	Counter32	read-only	The number of times this session has gone into the Down state since the router last rebooted.
C64 h3cBfdSessStatPktDiscard	1.3.6.1.4.1.2011.10.2.72.1.4.1.4	Counter64	read-only	The number of packets the local system has discarded since the router last rebooted.
C64 h3cBfdSessStatPktLost	1.3.6.1.4.1.2011.10.2.72.1.4.1.5	Counter64	read-only	The number of packets the local system has failed to transmit since the router last rebooted.
h3cBfdSessPerfTable	1.3.6.1.4.1.2011.10.2.72.1.5		not-accessible	The table defines BFD session performance.
h3cBfdSessPerfEntry	1.3.6.1.4.1.2011.10.2.72.1.5.1		not-accessible	An entry in this table is created by a BFD-enabled node for every BFD session. It defines BFD Session performance.
TIM h3cBfdSessPerfCreatTime	1.3.6.1.4.1.2011.10.2.72.1.5.1.1	TimeStamp	read-only	The value of sysUpTime when the session was created. If no such create event exists this object contains a zero value.
TIM h3cBfdSessPerfLastUpTime	1.3.6.1.4.1.2011.10.2.72.1.5.1.2	TimeStamp	read-only	The value of sysUpTime when the last time communication was lost. If no such up event exists this variable contains a zero value.
TIM h3cBfdSessPerfLastDownTime	1.3.6.1.4.1.2011.10.2.72.1.5.1.3	TimeStamp	read-only	The value of sysUpTime when the last time communication was lost with the neighbor. If no such event exist this variable contains a zero value.
h3cBfdConformance	1.3.6.1.4.1.2011.10.2.72.2

RFC description

Manages Bidirectional Forwarding Detection for link failure detection and monitoring.

Start monitoring H3C router/switch (Bidirectional Forwarding Detection) 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 H3C-BFD-STD-MIB