All MIBs › Wellfleet-CSMACD-MIB
Category: Wellfleet BayNetworks LAN and Bridging
Description: Monitors Wellfleet CSMA/CD (Ethernet) interface parameters, collision statistics, and error counters.
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What Is Wellfleet-CSMACD-MIB?
This is a vendor-specific proprietary MIB from Wellfleet Communications (later Bay Networks/Nortel) monitoring CSMA/CD (classic Ethernet) interfaces on its multiprotocol routers. It exposes interface-level parameters along with collision statistics and other Ethernet error counters. It supports hardware status monitoring directly: rising collision, late-collision, or CRC/alignment error counts are classic indicators of a failing NIC, a duplex mismatch, or a degraded cable/segment. It parallels the standard IETF EtherLike-MIB (RFC 1643/2665) conceptually, though implemented as a Wellfleet-proprietary equivalent for its own hardware. It is typically deployed on Wellfleet/Bay Networks routers with onboard or module Ethernet interfaces connecting to legacy or contemporary LAN segments, where Wellfleet-CSMACD-MIB SNMP monitoring helps catch collision and error trends before they degrade the segment.
IPNetwork Monitor allows you to monitor SNMP objects defined in Wellfleet-CSMACD-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
- Wellfleet/Bay Networks multiprotocol routers with Ethernet (CSMA/CD) interfaces
Monitoring Examples
No sample_objects were provided for this module; based on the short_desc, an operator would typically poll per-interface collision counters, late-collision counts, and CRC/alignment error counters. A steadily climbing collision or late-collision count on one interface, especially compared to peer interfaces, would point to a duplex mismatch or a physical cabling problem on that segment.
What Can Be Monitored
- interface collision count
- late collision count
- CRC/alignment error count
- interface operational status
This MIB depends on
Related MIBs
Imported Objects
From RFC-1212
| OBJECT-TYPE |
From RFC1155-SMI
| Counter | |
| Gauge | |
| TimeTicks |
From Wellfleet-COMMON-MIB
| wfCSMACDAutoNegGroup | OBJECT-IDENTITY |
| wfLine | OBJECT-IDENTITY |
OIDs
| OID symbolic | OID numeric | Type | Access | Description |
|---|---|---|---|---|
| INT wfCSMACDActualConnector | 1.3.6.1.4.1.18.3.4.1.1.41 | INTEGER | read-only | Actual connector number for ASN platform, filled in by driver. For non-ASN platforms this attribute will not be used. |
| CTR wfCSMACDAlignErrorRx | 1.3.6.1.4.1.18.3.4.1.1.23 | Counter | read-only | Number of receiver alignment errors |
| INT wfCSMACDAlignmentMode | 1.3.6.1.4.1.18.3.4.1.1.36 | INTEGER | read-write | Enables special frame re-alignment in the Line Driver. Only needed when 4 ethernet interfaces are configured on a single slot. Only needed if experiencing transmit underflow errors (wfCSMACDUfloTx). When this attribute is set to DISABLED, non-optimally aligned frames are transmitted as is. When this attribute is set to ALL (1), all non-optimally aligned frames are re-aligned before transmission. When this attribute is set to ALIGN_OVER_128_BYTES (2), all non-optimally aligned frames over 128 bytes in length are re-aligned before transmission and frames up to and including 128 bytes in length are transmitted as is. |
| GAU wfCSMACDAutoNegAdvertisedCapability | 1.3.6.1.4.1.18.3.4.16.1.1.9 | Gauge | read-write | This is a GAUGE because this attribute is 32-bit unsigned, non-increasing A successful set operation will result in immediate link re-negotiation if AutoNegAdminState is enabled. A value that uniquely identifies the set of capabilities advertised by the local Auto Negotiation entity. The value is a sum which initially takes the value zero. Then, for each capability of the ADVERTISED interface, 2 raised to the power noted below is added to the sum. For example, a ADVERTISED interface which has the capability to support only 100Base-TX would have a value of 128 (2**7). In contrast, an ADVERTISED interface which supports both 100Base-TX and 100Base-TX Full Duplex would cause this object to have a value of 384 ((2**7) + (2**8)). The powers of 2 assigned to the capabilities are these: Power Capability 0 Pause 1 ASM_DIR 5 10Base-T 6 10Base-T Full Duplex 7 100Base-TX 8 100Base-TX Full Duplex 9 100Base-T4 14 1000Base-X 15 1000Base-X Full Duplex NOTE: This parameter is only valid if SpeedSelect is configured for NWay. |
| INT wfCSMACDAutoNegConnector | 1.3.6.1.4.1.18.3.4.16.1.1.3 | INTEGER | read-only | instance ID Connector, filled in by driver. For the ASN this attribute is an encoded value and is equal to 'module'*10 + 'connector'. Where 'module' is defined in attribute 42 and 'connector' is defined in attribute 43 of this table. For non-ASN platforms this attribute is the physical connector number on the slot. |
| INT wfCSMACDAutoNegDelete | 1.3.6.1.4.1.18.3.4.16.1.1.1 | INTEGER | read-write | create/delete parameter, dflt = created |
| wfCSMACDAutoNegEntry | 1.3.6.1.4.1.18.3.4.16.1.1 | not-accessible | An entry in the csmacd table | |
| GAU wfCSMACDAutoNegLocalCapability | 1.3.6.1.4.1.18.3.4.16.1.1.8 | Gauge | read-only | This is a GAUGE because this attribute is 32-bit unsigned, non-increasing A value that uniquely identifies the set of capabilities of the LOCAL Auto Negotiation entity. The value is a sum which initially takes the value zero. Then, for each capability of the LOCAL interface, 2 raised to the power noted below is added to the sum. For example, a LOCAL interface which has the capability to support only 100Base-TX would have a value of 128 (2**7). In contrast, a LOCAL interface which supports both 100Base-TX and 100Base-TX Full Duplex would cause this object to have a value of 384 ((2**7) + (2**8)). The powers of 2 assigned to the capabilities are these: Power Capability 0 Pause 1 ASM_DIR 5 10Base-T 6 10Base-T Full Duplex 7 100Base-TX 8 100Base-TX Full Duplex 9 100Base-T4 14 1000Base-X 15 1000Base-X Full Duplex NOTE: This parameter is only valid if SpeedSelect is configured for NWay. |
| GAU wfCSMACDAutoNegReceivedCapability | 1.3.6.1.4.1.18.3.4.16.1.1.10 | Gauge | read-only | This is a GAUGE because this attribute is 32-bit unsigned, non-increasing A value that uniquely identifies the set of capabilities of the REMOTE Auto Negotiation entity. The value is a sum which initially takes the value zero. Then, for each capability of the REMOTE interface, 2 raised to the power noted below is added to the sum. For example, a REMOTE interface which has the capability to support only 100Base-TX would have a value of 128 (2**7). In contrast, a REMOTE interface which supports both 100Base-TX and 100Base-TX Full Duplex would cause this object to have a value of 384 ((2**7) + (2**8)). The powers of 2 assigned to the capabilities are these: Power Capability 0 Pause 1 ASM_DIR 5 10Base-T 6 10Base-T Full Duplex 7 100Base-TX 8 100Base-TX Full Duplex 9 100Base-T4 14 1000Base-X 15 1000Base-X Full Duplex NOTE: This parameter is only valid if SpeedSelect is configured for NWay. |
| INT wfCSMACDAutoNegRemoteSignaling | 1.3.6.1.4.1.18.3.4.16.1.1.5 | INTEGER | read-only | This value indicates whether the remote end of the link is operating Auto Negotiation signaling or not. It shall take the value detected if, during the previous link negotiation, FLP bursts were received from the remote end. NOTE: This parameter is only valid if SpeedSelect is configured for NWay. |
| INT wfCSMACDAutoNegRestartAutoConfig | 1.3.6.1.4.1.18.3.4.16.1.1.7 | INTEGER | read-write | Writing any value to this attribute forces Auto Negotiation to begin link re-negotiation. This action has no effect if Auto Negotiation signaling is disabled. NOTE: This parameter is only valid if SpeedSelect is configured for NWay. |
| INT wfCSMACDAutoNegSlot | 1.3.6.1.4.1.18.3.4.16.1.1.2 | INTEGER | read-only | instance ID Slot, filled in by driver |
| INT wfCSMACDAutoNegSpeedSelect | 1.3.6.1.4.1.18.3.4.16.1.1.4 | INTEGER | read-write | This value indicates the configured speed of the local interface. This parameter allows configuration of a specific speed and duplex setting, or allows configuration/enabling of Auto Negotiation/NWay. Selecting a specific speed (i.e. a value other than 1) implicitly disables Auto Negotiation/NWay. |
| INT wfCSMACDAutoNegState | 1.3.6.1.4.1.18.3.4.16.1.1.6 | INTEGER | read-only | This value indicates whether Auto Negotiation signaling is in progress or has completed. NOTE: This parameter is only valid if SpeedSelect is configured for NWay. |
| wfCSMACDAutoNegTable | 1.3.6.1.4.1.18.3.4.16.1 | not-accessible | CSMA/CD Auto Negotiation (NWay) record | |
| CTR wfCSMACDBablErrorTx | 1.3.6.1.4.1.18.3.4.1.1.18 | Counter | read-only | Number of frames transmitted larger than the MTU size in wfCSMACDMtu |
| INT wfCSMACDBofl | 1.3.6.1.4.1.18.3.4.1.1.7 | INTEGER | read-write | bofl parameter, dflt = enabled |
| INT wfCSMACDBoflRetries | 1.3.6.1.4.1.18.3.4.1.1.59 | INTEGER | read-write | bofl retries, dflt = 5 |
| INT wfCSMACDBoflTmo | 1.3.6.1.4.1.18.3.4.1.1.8 | INTEGER | read-write | bofl parameter, dflt = 5. A value of zero has a special meaning. When bofl tmo is zero, the line is killed as soon as the link down down condition is determined. |
| INT wfCSMACDBoflTmoDivisor | 1.3.6.1.4.1.18.3.4.1.1.60 | INTEGER | read-write | bofl tmo divisorr, dflt = 1 |
| CTR wfCSMACDBufErrorTx | 1.3.6.1.4.1.18.3.4.1.1.19 | Counter | read-only | Number of internal buffer errors |
| INT wfCSMACDCct | 1.3.6.1.4.1.18.3.4.1.1.6 | INTEGER | read-write | cct number for this line instance |
| CTR wfCSMACDCerr | 1.3.6.1.4.1.18.3.4.1.1.28 | Counter | read-only | Number of collision errors |
| INT wfCSMACDCfgRxQueueLength | 1.3.6.1.4.1.18.3.4.1.1.35 | INTEGER | read-write | Configured Receive Queue Length. Values other than zero over-ride the router selected values. A value of zero has a special meaning. Zero causes router based default values to be used. Values larger than the compiled ring size are truncated to the compiled ring size. |
| INT wfCSMACDCfgTxQueueLength | 1.3.6.1.4.1.18.3.4.1.1.34 | INTEGER | read-write | Configured Transmit Queue Length. Values other than zero over-ride the router selected values. A value of zero has a special meaning. Zero causes router based default values to be used. Values larger than the compiled ring size are truncated to the compiled ring size. |
| INT wfCSMACDConfigurableSpeed | 1.3.6.1.4.1.18.3.4.1.1.56 | INTEGER | read-only | This attribute will be enabled(1) if the interface supports different speed configurations. If configurable speeds are not supported on the interface, this attribute will be disabled(2). Creation of wfCSMACDAutoNegEntry records for 10/100BaseT is valid only if this attribute is enabled. For Gigabit Ethernet the latter statement is not true |
| INT wfCSMACDConnector | 1.3.6.1.4.1.18.3.4.1.1.5 | INTEGER | read-only | instance ID Connector, filled in by driver. For the ASN this attribute is an encoded value and is equal to 'module'*10 + 'connector'. Where 'module' is defined in attribute 42 and 'connector' is defined in attribute 43 of this table. For non-ASN platforms this attribute is the physical connector number on the slot. |
| CTR wfCSMACDDeferredTx | 1.3.6.1.4.1.18.3.4.1.1.15 | Counter | read-only | Number of deferred transmissions |
| INT wfCSMACDDelete | 1.3.6.1.4.1.18.3.4.1.1.1 | INTEGER | read-write | create/delete parameter, dflt = created |
| INT wfCSMACDDsqmsLineSpeed | 1.3.6.1.4.1.18.3.4.1.1.69 | INTEGER | read-write | User-selected line speed for DSQMS client |
| INT wfCSMACDEnable | 1.3.6.1.4.1.18.3.4.1.1.2 | INTEGER | read-write | enable/disable parameter, dflt = enabled |
| wfCSMACDEntry | 1.3.6.1.4.1.18.3.4.1.1 | not-accessible | An entry in the csmacd table | |
| OID wfCSMACDEtherChipSet | 1.3.6.1.4.1.18.3.4.1.1.53 | OBJECT IDENTIFIER | read-only | This object contains an OBJECT IDENTIFIER which identifies the chipset used to realize the interface. This object usually identifies the Medium Access Control (MAC) chip. |
| CTR wfCSMACDExcessvCollnTx | 1.3.6.1.4.1.18.3.4.1.1.17 | Counter | read-only | Number of excessive collisions |
| CTR wfCSMACDFcsErrorRx | 1.3.6.1.4.1.18.3.4.1.1.22 | Counter | read-only | Number of receiver checksum errors |
| INT wfCSMACDFlowControlEnable | 1.3.6.1.4.1.18.3.4.1.1.66 | INTEGER | read-write | Flow control enable/disable parameter, dflt = enabled |
| CTR wfCSMACDFramesRxOk | 1.3.6.1.4.1.18.3.4.1.1.12 | Counter | read-only | Number of frames received without error |
| CTR wfCSMACDFramesTxOk | 1.3.6.1.4.1.18.3.4.1.1.14 | Counter | read-only | Number of frames transmitted without error |
| INT wfCSMACDHardwareFilter | 1.3.6.1.4.1.18.3.4.1.1.29 | INTEGER | read-write | Hardware filtering parameter. |
| INT wfCSMACDIfIndex | 1.3.6.1.4.1.18.3.4.1.1.62 | INTEGER | read-only | IfTable Index for this line instance, filled in by driver. For the BAC it is not the same as the circuit number. |
| CTR wfCSMACDInternalMacRxErrors | 1.3.6.1.4.1.18.3.4.1.1.55 | Counter | read-only | A count of frames for which reception on a particular interface fails due to an internal MAC sublayer receive error. A frame is only counted by an instance of this object if it is not counted by the corresponding instance of either the FrameTooLongs object, the AlignmentErrors object, or the FCSErrors object. |
| CTR wfCSMACDInternalMacTxErrors | 1.3.6.1.4.1.18.3.4.1.1.51 | Counter | read-only | A count of frames for which transmission on a particular interface fails due to an internal MAC sublayer transmit error. A frame is only counted by an instance of this object if it is not counted by the corresponding instance of either the LateCollisions object, the ExcessiveCollisions object, or the CarrierSenseErrors object. |
| CTR wfCSMACDIntProcessings | 1.3.6.1.4.1.18.3.4.1.1.44 | Counter | read-only | counts the number of times the interrupt service routine has been called |
| CTR wfCSMACDLackRescErrorRx | 1.3.6.1.4.1.18.3.4.1.1.24 | Counter | read-only | Number of receiver lack of resource errors |
| TIK wfCSMACDLastChange | 1.3.6.1.4.1.18.3.4.1.1.42 | TimeTicks | read-only | The value of SysUpTime at the time the interface entered it's current operational state (UP state). SysUpTime is defined as the time (in hundredths of a second) since the network management portion of the system was last re-initialized. Usually the time since boot. |
| CTR wfCSMACDLateCollnRx | 1.3.6.1.4.1.18.3.4.1.1.39 | Counter | read-only | Number of late collisions - found in QUICC Ethernet Rx Buffer Descriptors |
| CTR wfCSMACDLateCollnTx | 1.3.6.1.4.1.18.3.4.1.1.16 | Counter | read-only | Number of late collisions |
| CTR wfCSMACDLcarTx | 1.3.6.1.4.1.18.3.4.1.1.20 | Counter | read-only | Number of loss of carrier errors |
| INT wfCSMACDLineCapability | 1.3.6.1.4.1.18.3.4.1.1.52 | INTEGER | read-only | If NWay is configured, this attribute contains a value that uniquely identifies the single capability that was agreed upon by the local and remote interfaces. If NWay is not configured, this attribute describes the speed and duplex setting that was configured for this interface. |
| INT wfCSMACDLineNumber | 1.3.6.1.4.1.18.3.4.1.1.38 | INTEGER | read-write | Logical line number associated with this driver entity. |
| OCT wfCSMACDMadr | 1.3.6.1.4.1.18.3.4.1.1.10 | OCTET STRING | read-only | line MAC address, fixed - line driver fills in |
| CTR wfCSMACDMerr | 1.3.6.1.4.1.18.3.4.1.1.27 | Counter | read-only | Number of internal memory errors |
| INT wfCSMACDModule | 1.3.6.1.4.1.18.3.4.1.1.40 | INTEGER | read-only | Module number for ASN platform, filled in by driver. For non-ASN platforms this attribute will not be used. |
| INT wfCSMACDMtu | 1.3.6.1.4.1.18.3.4.1.1.9 | INTEGER | read-only | mtu parameter, fixed |
| CTR wfCSMACDMultipleCollisionFrames | 1.3.6.1.4.1.18.3.4.1.1.50 | Counter | read-only | A count of successfully transmitted frames on a particular interface for which transmission is inhibited by more than one collision. |
| CTR wfCSMACDOctetsRxOk | 1.3.6.1.4.1.18.3.4.1.1.11 | Counter | read-only | Number of octets received without error |
| CTR wfCSMACDOctetsTxOk | 1.3.6.1.4.1.18.3.4.1.1.13 | Counter | read-only | Number of octets transmitted without error |
| CTR wfCSMACDOfloRx | 1.3.6.1.4.1.18.3.4.1.1.26 | Counter | read-only | Number of receiver overflow errors |
| GAU wfCSMACDOutQLen | 1.3.6.1.4.1.18.3.4.1.1.43 | Gauge | read-only | The instantaneous current length of the output packet queue (in packets). |
| CTR wfCSMACDRxFlowControlPauseFrames | 1.3.6.1.4.1.18.3.4.1.1.64 | Counter | read-only | This attribute indicates the number of Flow Control Pause frames received. |
| CTR wfCSMACDRxFlushes | 1.3.6.1.4.1.18.3.4.1.1.57 | Counter | read-only | This attribute describes the number of times the hardware has entered a state which required a flush of the RX FIFO. |
| CTR wfCSMACDRxProcessings | 1.3.6.1.4.1.18.3.4.1.1.46 | Counter | read-only | Counts the number of times RINT processing takes place in the interrupt service routine. |
| INT wfCSMACDRxQueueLength | 1.3.6.1.4.1.18.3.4.1.1.31 | INTEGER | read-only | Current Receive Queue Length |
| CTR wfCSMACDRxReplenMisses | 1.3.6.1.4.1.18.3.4.1.1.33 | Counter | read-only | Number of packet buffer misses while attempting to replenish driver receive ring. |
| CTR wfCSMACDRxSymbolErrors | 1.3.6.1.4.1.18.3.4.1.1.54 | Counter | read-only | A count of frames received on a particular interface with one or more 100Mb symbol errors detected. |
| CTR wfCSMACDRxUnsupportedOpcodes | 1.3.6.1.4.1.18.3.4.1.1.65 | Counter | read-only | This attribute indicates the number of Control frames received that were not pause frames. |
| CTR wfCSMACDSingleCollisionFrames | 1.3.6.1.4.1.18.3.4.1.1.49 | Counter | read-only | A count of successfully transmitted frames on a particular interface for which transmission is inhibited by exactly one collision. |
| INT wfCSMACDSlot | 1.3.6.1.4.1.18.3.4.1.1.4 | INTEGER | read-only | instance ID Slot, filled in by driver |
| INT wfCSMACDState | 1.3.6.1.4.1.18.3.4.1.1.3 | INTEGER | read-only | line driver state variable, Not Present, Init, Down, Up |
| wfCSMACDTable | 1.3.6.1.4.1.18.3.4.1 | not-accessible | CSMA/CD line record | |
| CTR wfCSMACDTooLongErrorRx | 1.3.6.1.4.1.18.3.4.1.1.25 | Counter | read-only | Number of frames received exceeding the MTU size in wfCSMACDMtu. |
| INT wfCSMACDTurboBoflDebug | 1.3.6.1.4.1.18.3.4.1.1.61 | INTEGER | read-write | Special Turbo-BOFL debug mechanism to be used by Engineering and Manufacturing only. 31-24 : TMO - period of breath (amount of time between successive breaths of life) 23-16 : Number of packets per breath. 15-0 : Packet length in bytes - 22 bytes minimum. All bits set to zero will disable this attribute. |
| CTR wfCSMACDTxClipFrames | 1.3.6.1.4.1.18.3.4.1.1.32 | Counter | read-only | Number of frames clipped in driver's transmit routine due to transmit congestion. |
| CTR wfCSMACDTxCmplProcessings | 1.3.6.1.4.1.18.3.4.1.1.47 | Counter | read-only | Counts the number of times the transmit complete processing takes place |
| CTR wfCSMACDTxDeadlocks | 1.3.6.1.4.1.18.3.4.1.1.58 | Counter | read-only | This attribute describes the number of times the hardware has entered a Tx Deadlock condition, and the software intervenes to free up the lock. |
| CTR wfCSMACDTxFlowControlPauseFrames | 1.3.6.1.4.1.18.3.4.1.1.63 | Counter | read-only | This attribute indicates the number of Flow Control Pause frames transmitted. |
| INT wfCSMACDTxFlowControlPauseTime | 1.3.6.1.4.1.18.3.4.1.1.67 | INTEGER | read-write | This attribute indicates flow control pause time in slots. |
| INT wfCSMACDTxFlowControlPauseZeroEnable | 1.3.6.1.4.1.18.3.4.1.1.68 | INTEGER | read-write | Tx Pause 0 frame generation enable/disable parameter, dflt = enabled. |
| CTR wfCSMACDTxProcessings | 1.3.6.1.4.1.18.3.4.1.1.45 | Counter | read-only | Counts the number of times the transmit routine has been called |
| INT wfCSMACDTxQueueLength | 1.3.6.1.4.1.18.3.4.1.1.30 | INTEGER | read-only | Current Transmit Queue Length |
| CTR wfCSMACDTxQueueReductions | 1.3.6.1.4.1.18.3.4.1.1.48 | Counter | read-only | Counts the number of times the transmit queue has been shrinked in size due to the number of tx clips exceeding the treshold |
| CTR wfCSMACDUfloTx | 1.3.6.1.4.1.18.3.4.1.1.21 | Counter | read-only | Number of transmitter underflow errors |
| CTR wfCSMACDUnAlignedFrames | 1.3.6.1.4.1.18.3.4.1.1.37 | Counter | read-only | Number of non-optimally aligned frames queued to the driver for transmit. This statistic does not indicate that any frames have been dropped. If the ethernet I/O board is not a Quad Ethernet Link Module (QENET) or if it is a QENET and none of the four ethernet interfaces are experiencing transmit underflow errors (wfCSMACDUfloTx), then this statistic should be ignored. If, however, this interface or other interfaces on the QENET are experiencing transmit underflow errors, the underflows are preventable by setting the wfCSMACDAlignmentMode attribute to 1. See explanation of that attribute for more information. This attribute means that these frames are candidates for re-alignment. It does not, by itself, indicate that re-alignment is necessary. |
RFC description
Manages CSMA/CD (Ethernet) line configurations and statistics for Wellfleet network devices, including frame counters, collision detection, and line error metrics.
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