All MIBs › DAVID-MIB
Category: Network Management
Description: Provides management objects for DAVID network device configuration and operational monitoring.
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What Is DAVID-MIB?
DAVID-MIB is a vendor-specific MIB (branded david/davidExpressNet) providing chassis and card-level configuration and status objects for a modular network device, exposing chassis type, backplane type/revision, and power supply type/status, along with a per-slot configuration table describing board ID, board type, description, and number of ports. This gives it clear hardware-status monitoring value: it lets an operator check the chassis power supply status, confirm backplane compatibility, and inventory which board/card type is installed in each slot along with its port count, which is useful for detecting a failed power supply, a mismatched backplane revision, or an unexpected/missing line card. No specific dependency on other MIBs is indicated by the available data, suggesting a largely self-contained enterprise chassis MIB. It would be deployed on modular chassis-based network devices marketed under the David/Express Net product branding, likely in enterprise or carrier access network environments. Engineers can download the DAVID-MIB file directly to load it into their MIB browser.
IPNetwork Monitor allows you to monitor SNMP objects defined in DAVID-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
- Modular chassis-based network device (David/Express Net branded)
Monitoring Examples
An operator would poll exNetChassisPsType and exNetChassisPsStatus to confirm the installed power supply type is healthy, and would check exNetChassisBkplType/exNetChassisBkplRev to verify backplane compatibility during a hardware audit. The exNetSlotConfigTable/exNetSlotConfigEntry (indexed by exNetSlotIndex) would be walked to inventory exNetBoardId, exNetBoardType, exNetBoardDescr, and exNetBoardNumOfPorts per chassis slot, flagging an unexpected board type or a slot reporting fewer ports than expected as a possible hardware fault or misconfiguration. A degraded exNetChassisPsStatus value would be a strong signal of an impending power supply failure requiring replacement.
What Can Be Monitored
- chassis power supply type/status
- backplane type and revision
- per-slot board ID/type/description
- per-slot port count
This MIB depends on
Related MIBs
Imported Objects
From RFC1155-SMI
| Counter | |
| DisplayString | |
| Gauge | |
| IpAddress | |
| NetworkAddress | |
| OBJECT-TYPE | |
| TimeTicks | |
| enterprises |
OIDs
| OID symbolic | OID numeric | Type | Access | Description |
|---|---|---|---|---|
| david | 1.3.6.1.4.1.66 | |||
| products | 1.3.6.1.4.1.66.1 | |||
| davidExpressNet | 1.3.6.1.4.1.66.1.3 | |||
| exNetChassis | 1.3.6.1.4.1.66.1.3.1 | |||
| INT exNetChassisType | 1.3.6.1.4.1.66.1.3.1.1 | INTEGER | read-only | The chassis type (option). |
| INT exNetChassisBkplType | 1.3.6.1.4.1.66.1.3.1.2 | INTEGER | read-only | The chassis backplane type (option). |
| INT exNetChassisBkplRev | 1.3.6.1.4.1.66.1.3.1.3 | INTEGER | read-only | The chassis backplane revision. |
| INT exNetChassisPsType | 1.3.6.1.4.1.66.1.3.1.4 | INTEGER | read-only | The chassis power supply type. This refers to the chassis transformer. Each module (including the Supervisor Module) has its own switching power supply. |
| INT exNetChassisPsStatus | 1.3.6.1.4.1.66.1.3.1.5 | INTEGER | read-only | The chassis power supply status. This refers t othe chassis transformer. Each module (including the Supervisor Module) has its own switching power supply. The status of the individual modules' power supplies is a module attribute. |
| exNetSlotConfigTable | 1.3.6.1.4.1.66.1.3.1.7 | not-accessible | The chassis slot configuration table. | |
| exNetSlotConfigEntry | 1.3.6.1.4.1.66.1.3.1.7.1 | not-accessible | Descriptions of the modules (or boards) in each slot. | |
| INT exNetSlotIndex | 1.3.6.1.4.1.66.1.3.1.7.1.1 | INTEGER | read-only | The DAVID ExpressNet chassis slot number. Valid entries are 1 to exNetChassisCapacity. On the physical Concentrator boxes, the Supervisor Modules are not numbered and the plug-in modules are numbered from 1 to n-1, where n is the number of slots in the Concentrator. For the purposes of the DAVID ExpressNet SNMP MIB, the Supervisor Module is numbered one past the highest-numbered plug-in module. For example, in a 12-Slot Concentrator, the plug-in modules are numbered 1-11 and the Supervisor Module is numbered 12. |
| INT exNetBoardId | 1.3.6.1.4.1.66.1.3.1.7.1.2 | INTEGER | read-only | The unique hardware ID for the module. |
| INT exNetBoardType | 1.3.6.1.4.1.66.1.3.1.7.1.3 | INTEGER | read-only | The type of the module. |
| STR exNetBoardDescr | 1.3.6.1.4.1.66.1.3.1.7.1.4 | DisplayString | read-only | Textual description of the module type. |
| INT exNetBoardNumOfPorts | 1.3.6.1.4.1.66.1.3.1.7.1.40 | INTEGER | read-only | The number of ports supported by the plug-in module. For a 10BASE-T Module the value is 12; for an FOIRL Module, 6; for a Supervisor Module, 1. |
| INT exNetChassisCapacity | 1.3.6.1.4.1.66.1.3.1.8 | INTEGER | read-only | The number of slots in the chassis for plug-in modules. This number will be either five or twelve for a Concentrator and two for a Hub. |
| exNetEthernet | 1.3.6.1.4.1.66.1.3.2 | |||
| exNetConcentrator | 1.3.6.1.4.1.66.1.3.2.1 | |||
| INT exNetConcRetimingStatus | 1.3.6.1.4.1.66.1.3.2.1.1 | INTEGER | read-only | Indicates whether this repeater has retiming turned on. All DAVID ExpressNet repeaters implement retiming, so the value on(2) is always returned for this variable. |
| CTR exNetConcFrmsRxOk | 1.3.6.1.4.1.66.1.3.2.1.2 | Counter | read-only | A count of frames that are successfully received by the Concentrator. This counter does not include frames received with frame-too-long, runt, FCS, or alignment errors. This counter includes broadcast and multicast frames that are received. |
| CTR exNetConcOctetsRxOk | 1.3.6.1.4.1.66.1.3.2.1.3 | Counter | read-only | A count of data and padding octets in frames that are successfully received by the concentrator. This counter does not include frames received with frame-too-long, runt, FCS, or alignment errors. This counter includes octets in broadcast and multicast frames that are received. |
| CTR exNetConcMcastFrmsRxOk | 1.3.6.1.4.1.66.1.3.2.1.4 | Counter | read-only | A count of frames that are successfully received by the concentrator and are directed to an active non-broadcast group address. This counter does not include frames received with frame-too-long, runt, FCS, or alignment errors. Only frames that are for a multicast address that this interface is receiving are counted. Broadcast packets are not included. |
| CTR exNetConcBcastFrmsRxOk | 1.3.6.1.4.1.66.1.3.2.1.5 | Counter | read-only | A count of frames that are successfully received by the concentrator and are directed to the broadcast group address. This counter does not include frames received with frame-too- long, runt, FCS, or alignment errors. Multicast packets are not included. |
| CTR exNetConcColls | 1.3.6.1.4.1.66.1.3.2.1.6 | Counter | read-only | Total collisions involving an incoming packet on any port (link or Network Interface port) in the Concentrator. This counter increments once for each collision involving an incoming packet on any port, no matter how many ports are involved. |
| CTR exNetConcTooLongErrors | 1.3.6.1.4.1.66.1.3.2.1.7 | Counter | read-only | A count of frames that are received by the Concentrator and exceed the maximum permitted frame size. |
| CTR exNetConcRuntErrors | 1.3.6.1.4.1.66.1.3.2.1.8 | Counter | read-only | Number of frames received by the Concentrator that have a correct preamble (including double 1), but are shorter than the minimum legal frame size of 64 bytes (512 bits). Runts are commonly collision fragments, and as such do not necessarily indicate a problem in the network. Runts are also known as 'short frames.' |
| CTR exNetConcFragErrors | 1.3.6.1.4.1.66.1.3.2.1.9 | Counter | read-only | Fragments of packets, shorter than the minimum legal transmission size of 96 bits, that are received on the Concentrator. Fragments indicate an external noise hit (a problem on the network). Fragments are also known as 'pygmies.' |
| CTR exNetConcAlignErrors | 1.3.6.1.4.1.66.1.3.2.1.10 | Counter | read-only | Number of frames received on the Concentrator that are byte-misaligned, such that the number of bits is not a multiple of 8. (These frames do not pass the frame check sequence check, but are not counted as FCS errors.) |
| CTR exNetConcFcsErrors | 1.3.6.1.4.1.66.1.3.2.1.11 | Counter | read-only | A count of frames received by the Concentrator that are an integral number of octets in length and do not pass the frame check sequence (FCS) check. FCS errors are sometimes called CRC errors. |
| CTR exNetConcLateCollErrors | 1.3.6.1.4.1.66.1.3.2.1.12 | Counter | read-only | A total Concentrator count of the late collisions. The late collision counter for a port is incremented whenever a collision is detected on the port later than 512 bit times into the transmitted packet. Late collisions are not included in the collision count. |
| STR exNetConcName | 1.3.6.1.4.1.66.1.3.2.1.40 | DisplayString | read-write | A descriptive string that can be used by a network administrator to name the Concentrator. |
| CTR exNetConcJabbers | 1.3.6.1.4.1.66.1.3.2.1.41 | Counter | read-only | A count of the number of times that the jabber function had to be invoked because a frame received from one of this Concentrator's ports exceeded 5 msec in duration. |
| CTR exNetConcSfdErrors | 1.3.6.1.4.1.66.1.3.2.1.42 | Counter | read-only | Amount of activity from this Concentrator's ports where a double-zero is seen before the start-frame delimiter (double-1). (This could indicate a polarity problem.) |
| CTR exNetConcAutoPartitions | 1.3.6.1.4.1.66.1.3.2.1.43 | Counter | read-only | Indicates how often ports on this Concentrator have been automatically partitioned by the Concentrator repeater function. |
| CTR exNetConcOosBitRate | 1.3.6.1.4.1.66.1.3.2.1.44 | Counter | read-only | Number of times that frames have been received on the Concentrator with the transmission frequency (data rate) badly out of spec. This counter is incremented when the frequency of a received frame is so far out of spec that the packet has been corrupted within the relay. The spec allows deviations of +/- 100 parts per million (ppm). The DAVID ExpressNet Intelligent Concentrators can handle greater deviations than this, depending on frame length. |
| CTR exNetConcLinkErrors | 1.3.6.1.4.1.66.1.3.2.1.45 | Counter | read-only | This composite counter includes jabbers, auto-partitions, and start-frame delimiter errors. |
| CTR exNetConcFrameErrors | 1.3.6.1.4.1.66.1.3.2.1.46 | Counter | read-only | This composite counter includes frame check sequence errors, fragments, short frames, long frames, and alignment errors. |
| OCT exNetConcNetUtilization | 1.3.6.1.4.1.66.1.3.2.1.47 | OCTET STRING | read-only | A series of ten bytes, each indicating the percentage of bandwidth utilization for a 100-millisecond interval. Together they give the bandwidth utilization for the previous second. |
| GAU exNetConcResetTimeStamp | 1.3.6.1.4.1.66.1.3.2.1.48 | Gauge | read-only | The value of sysUpTime at the point that the Concentrator repeater state machine was last reset. |
| INT exNetConcReset | 1.3.6.1.4.1.66.1.3.2.1.49 | INTEGER | read-write | The reset state of the Concentrator's repeater state machine. Writing a 2 will reset the Concentrator's control logic, without changing the current configuration. Writing a 3 will reset the Concentrator to the initial factory default configuration. |
| exNetModule | 1.3.6.1.4.1.66.1.3.2.2 | |||
| exNetModuleTable | 1.3.6.1.4.1.66.1.3.2.2.1 | not-accessible | A list of module entries. The number of entries is given by the number of modules that are obtained by the Concentrator Slot Configuration Table. | |
| exNetModuleEntry | 1.3.6.1.4.1.66.1.3.2.2.1.1 | not-accessible | A module entry containing objects at the module level for a particular module. | |
| INT exNetModuleIndex | 1.3.6.1.4.1.66.1.3.2.2.1.1.1 | INTEGER | read-only | A unique value for each module. Its value ranges between 1 and exNetChassisCapacity. The value for each module must remain constant at least from one reinitialization of the entity's network management system to the next reinitialization. This value is tied to the hardware chassis slot number. |
| INT exNetModuleType | 1.3.6.1.4.1.66.1.3.2.2.1.1.2 | INTEGER | read-only | The type of the module. |
| INT exNetModuleHwVer | 1.3.6.1.4.1.66.1.3.2.2.1.1.3 | INTEGER | read-only | The hardware configuration of the module or hub. For model 6311, 6312, and 6313 board types, the type of Network Interface provided with the board is indicated by the following values (0-3 apply to ExpressNet Hubs; 7 is returned for Concentrator modules): 0 = AUI 1 = 10BASE2 2 = 10BASE-T 3 = FOIRL 7 = no interface |
| INT exNetModuleStatus | 1.3.6.1.4.1.66.1.3.2.2.1.1.4 | INTEGER | read-only | The operational status of the module. If the status is selfTestFail(3), the exNetModuleSelfTestResult will give more detailed information about the module's condition. |
| INT exNetModuleReset | 1.3.6.1.4.1.66.1.3.2.2.1.1.5 | INTEGER | read-write | The reset state of the module. Writing a 2 will reset the module's control logic, without changing the current configuration. Writing a 3 will reset the module to the initial factory default configuration. |
| INT exNetModulePartStatus | 1.3.6.1.4.1.66.1.3.2.2.1.1.6 | INTEGER | read-write | Tells whether the module is partitioned or enabled. Writing a 2 will partition the module and 1 will enable the module. |
| INT exNetModuleNmCntlStatus | 1.3.6.1.4.1.66.1.3.2.2.1.1.7 | INTEGER | read-only | Tells whether the module is under network management control. DAVID ExpressNet Concentrators always return nmControl(2), since all modules are always under network management control. |
| INT exNetModulePsStatus | 1.3.6.1.4.1.66.1.3.2.2.1.1.8 | INTEGER | read-only | The status of the module's power supply. |
| CTR exNetModuleFrmsRxOk | 1.3.6.1.4.1.66.1.3.2.2.1.1.9 | Counter | read-only | A count of frames that are successfully received by the module. This counter does not include frames received with frame-too-long, runt, FCS, or alignment errors. This counter includes broadcast and multicast frames that are received. |
| CTR exNetModuleOctetsRxOk | 1.3.6.1.4.1.66.1.3.2.2.1.1.10 | Counter | read-only | A count of data and padding octets in frames that are successfully received by the module. This counter does not include frames received with frame-too-long, runt, FCS, or alignment errors. This counter includes octets in broadcast and multicast frames that are received. |
| CTR exNetModuleColls | 1.3.6.1.4.1.66.1.3.2.2.1.1.13 | Counter | read-only | Total collisions involving an incoming packet on any link or the backplane connector in the module. This counter increments once for each collision involving an incoming packet on any port, no matter how many ports are involved. |
| CTR exNetModuleTooLongErrors | 1.3.6.1.4.1.66.1.3.2.2.1.1.14 | Counter | read-only | A count of frames that are received by the module and exceed the maximum permitted frame size. |
| CTR exNetModuleRuntErrors | 1.3.6.1.4.1.66.1.3.2.2.1.1.15 | Counter | read-only | Number of frames received by the module that have a correct preamble (including double 1), but are shorter than the minimum legal frame size of 64 bytes (512 bits). Runts are commonly collision fragments, and as such do not necessarily indicate a problem in the network. Runts are also called 'short frames.' |
| CTR exNetModuleAlignErrors | 1.3.6.1.4.1.66.1.3.2.2.1.1.16 | Counter | read-only | Number of frames received by the module that are byte-misaligned, such that the number of bits is not a multiple of 8. (These frames do not pass the frame check sequence check, but are not counted as FCS errors.) |
| CTR exNetModuleFcsErrors | 1.3.6.1.4.1.66.1.3.2.2.1.1.17 | Counter | read-only | A count of frames received by the module that are an integral number of octets in length and do not pass the frame check sequence (FCS) check. FCS errors are sometimes called CRC errors. |
| CTR exNetModuleLateCollErrors | 1.3.6.1.4.1.66.1.3.2.2.1.1.18 | Counter | read-only | A module count of the late collisions on all of the module's ports. The late collision counter for a port is incremented whenever a collision is detected on the port later than 512 bit times into the transmitted packet. Late collisions are not included in the collision count. |
| STR exNetModuleName | 1.3.6.1.4.1.66.1.3.2.2.1.1.40 | DisplayString | read-write | A descriptive string that can be used by a network administrator to name the module. |
| CTR exNetModuleJabbers | 1.3.6.1.4.1.66.1.3.2.2.1.1.41 | Counter | read-only | A count of the number of times that the jabber function had to be invoked because a frame received from one of this module's ports exceeded 5 msec in duration. |
| CTR exNetModuleSfdErrors | 1.3.6.1.4.1.66.1.3.2.2.1.1.42 | Counter | read-only | Amount of activity from this module's ports where a double-zero is seen before the start-frame delimiter (double-1). (This could indicate a polarity problem.) |
| CTR exNetModuleAutoPartitions | 1.3.6.1.4.1.66.1.3.2.2.1.1.43 | Counter | read-only | Indicates how often ports on this module have been automatically partitioned by the module repeater function. |
| CTR exNetModuleOosBitRate | 1.3.6.1.4.1.66.1.3.2.2.1.1.44 | Counter | read-only | Number of times that frames have been received from ports on this module with the transmission frequency (data rate) badly out of spec. This counter is incremented when the frequency of a received frame is so far out of spec that the packet has been corrupted within the relay. The spec allows deviations of +/- 100 parts per million (ppm). The DAVID ExpressNet Concentrators can handle greater deviations than this, depending on frame length. |
| CTR exNetModuleLinkErrors | 1.3.6.1.4.1.66.1.3.2.2.1.1.45 | Counter | read-only | This composite counter includes jabbers, auto-partitions, and start-frame delimiter errors. |
| CTR exNetModuleFrameErrors | 1.3.6.1.4.1.66.1.3.2.2.1.1.46 | Counter | read-only | This composite counter includes frame check sequence errors, fragments, short frames, long frames, and alignment errors. |
| CTR exNetModuleFragErrors | 1.3.6.1.4.1.66.1.3.2.2.1.1.47 | Counter | read-only | Fragments of packets, shorter than the minimum legal transmission size of 96 bits, that are received on the module. Fragments indicate an external noise hit (a problem on the network). Fragments are also known as 'pygmies.' |
| INT exNetModulePortConfig | 1.3.6.1.4.1.66.1.3.2.2.1.1.48 | INTEGER | read-write | Compresses the configuration of all of this module's ports into a two-byte integer value. Sums f(x) as x goes from 1 to number of ports, where f(x) = 0 for disabled port and f(x) = exp(2,x-1) for enabled port. |
| INT exNetModuleLinkStatConfig | 1.3.6.1.4.1.66.1.3.2.2.1.1.49 | INTEGER | read-write | Compresses the link status configuration of all of this module's ports into a two-byte integer value. Sums f(x) as x goes from 1 to number of ports, where f(x) = 0 for port with link status disabled and f(x) = exp(2,x-1) for port with link status enabled. |
| GAU exNetModuleResetTimeStamp | 1.3.6.1.4.1.66.1.3.2.2.1.1.50 | Gauge | read-only | The value of sysUpTime at the point that the module repeater state machine was last reset. |
| INT exNetModuleLinkStatus | 1.3.6.1.4.1.66.1.3.2.2.1.1.51 | INTEGER | read-only | Compresses the link status of all of this module's ports into a two-byte integer value. Sums f(x) as x goes from 1 to number of ports, where f(x) = 0 for port with link status test passed (link active) and f(x) = exp(2,x-1) for port with link status test failed (link inactive). For ports with link status test disabled, zero is returned. For example, if link status is active on all ports, the value returned is zero. If link status for ports 3 and 7 is inactive and the rest of the ports have active link status, the value returned is (2^(3-1) + 2^(7-1)) = (4 + 64) = 68. |
| INT exNetModuleFwVer | 1.3.6.1.4.1.66.1.3.2.2.1.1.52 | INTEGER | read-only | The firmware revision of the GAP processor on the module. |
| INT exNetModuleFwFeaturePkg | 1.3.6.1.4.1.66.1.3.2.2.1.1.53 | INTEGER | read-only | The feature package associated with the GAP processor on the module. |
| INT exNetModuleSelfTestResult | 1.3.6.1.4.1.66.1.3.2.2.1.1.54 | INTEGER | read-only | The self-test result value returned by the GAP processor on the module. Zero indicates that the module passed all tests. Bits set in the result indicate error conditions, as follows: Bit number Error encountered 0 ROM failure 1 CPU failure 2 RAM failure 3 repeater module failure 4 reserved 5 internal power (-5v) failure 6 NI power fuse (+12v) failure |
| exNetPort | 1.3.6.1.4.1.66.1.3.2.3 | |||
| exNetPortTable | 1.3.6.1.4.1.66.1.3.2.3.1 | not-accessible | A list of port entries. The number of entries is given by knowing the number of occupied slots in the exNetSlotConfigTable and the number of ports that are on an exNetModuleType. | |
| exNetPortEntry | 1.3.6.1.4.1.66.1.3.2.3.1.1 | not-accessible | A port entry containing objects at the port level for a particular port. | |
| INT exNetPortModuleIndex | 1.3.6.1.4.1.66.1.3.2.3.1.1.1 | INTEGER | read-only | A unique value for each module. Its value ranges between 1 and exNetChassisCapacity. |
| INT exNetPortIndex | 1.3.6.1.4.1.66.1.3.2.3.1.1.2 | INTEGER | read-only | A unique value for each port. Its value ranges between 1 and the value of exNetBoardNumOfPorts for this module. |
| INT exNetPortLinkStatus | 1.3.6.1.4.1.66.1.3.2.3.1.1.3 | INTEGER | read-only | For 10BASE-T ports: this is the link integrity test defined by the 10BASE-T standard. If link status test is enabled, this flag indicates whether the link is active or inactive. There are several reasons for an inactive link: . PC or workstation connected to the MAU has been turned off . disrupted link (e.g., wiring problem) . TP-MAU on the end of the link is missing, dead, or powered off . transmit and receive polarities are swapped For FOIRL ports: the link status is constantly tested; thus, this variable is always meaningful. A value of off(1) indicates a low-light condition (poor signal quality). The value on(2) indicates that signal quality on the link is ok. For AUI ports: the value other(3) is always returned since link status test does not apply. |
| INT exNetPortPartStatus | 1.3.6.1.4.1.66.1.3.2.3.1.1.4 | INTEGER | read-write | Indicates whether the port is currently partitioned by the Concentrator's auto-partition protection. (The Concentrator automatically partitions a port if it is signalling continuous collision, or 32 consecutive collisions.) Writing a 1 will forcibly unpartition the port. Writing a 2 or a 3 is illegal. To enable or disable the port, use the exNetPortConfig variable. |
| INT exNetPortJabberStatus | 1.3.6.1.4.1.66.1.3.2.3.1.1.5 | INTEGER | read-only | Tells whether the DTE connected to the port is jabbering (receiving a frame longer than 5 msec in duration). |
| CTR exNetPortFrmsRxOk | 1.3.6.1.4.1.66.1.3.2.3.1.1.6 | Counter | read-only | A count of frames that are successfully received by the port. This counter does not include frames received with frame-too- long, runt, FCS, or alignment errors. This counter includes broadcast and multicast frames that are received. |
| CTR exNetPortOctetsRxOk | 1.3.6.1.4.1.66.1.3.2.3.1.1.7 | Counter | read-only | A count of data and padding octets in frames that are successfully received by the port. This counter does not include frames received with frame-too-long, runt, FCS, or alignment errors. This counter includes octets in broadcast and multicast frames that are received. |
| CTR exNetPortColls | 1.3.6.1.4.1.66.1.3.2.3.1.1.10 | Counter | read-only | Number of times this port was involved in a collision with another port in the same Hub. |
| CTR exNetPortTooLongErrors | 1.3.6.1.4.1.66.1.3.2.3.1.1.11 | Counter | read-only | A count of frames that are received by the port and exceed the maximum permitted frame size. |
| CTR exNetPortRuntErrors | 1.3.6.1.4.1.66.1.3.2.3.1.1.12 | Counter | read-only | Number of frames received by the port that have a correct preamble (including double 1), but are shorter than the minimum legal frame size of 64 bytes (512 bits). Runts are commonly collision fragments, and as such do not necessarily indicate a problem in the network. Runts are also called 'short frames.' |
| CTR exNetPortAlignErrors | 1.3.6.1.4.1.66.1.3.2.3.1.1.13 | Counter | read-only | Number of frames received by the port that are byte-misaligned, such that the number of bits is not a multiple of 8. (These frames do not pass the frame check sequence check, but are not counted as FCS errors.) |
| CTR exNetPortFcsErrors | 1.3.6.1.4.1.66.1.3.2.3.1.1.14 | Counter | read-only | A count of frames received by the port that are an integral number of octets in length and do not pass the frame check sequence (FCS) check. This counter is incremented when the frameCheckError status is detected. FCS errors are sometimes called CRC errors. |
| CTR exNetPortLateCollErrors | 1.3.6.1.4.1.66.1.3.2.3.1.1.15 | Counter | read-only | Number of times that a collision has been detected on this port later than 512 bit times into the transmitted packet. Late collisions are not included in the collision count. |
| STR exNetPortName | 1.3.6.1.4.1.66.1.3.2.3.1.1.40 | DisplayString | read-write | A descriptive string that can be used by a network administrator to name the port. |
| CTR exNetPortJabbers | 1.3.6.1.4.1.66.1.3.2.3.1.1.41 | Counter | read-only | A count of the number of times that the jabber function had to be invoked because a frame received from this port exceeded 5 msec in duration. |
| CTR exNetPortSfdErrors | 1.3.6.1.4.1.66.1.3.2.3.1.1.42 | Counter | read-only | Amount of activity from this port where a double-zero is seen before the start-frame delimiter (double-1). (This could indicate a polarity problem.) |
| CTR exNetPortAutoPartitions | 1.3.6.1.4.1.66.1.3.2.3.1.1.43 | Counter | read-only | Indicates how often this port has been automatically partitioned by the module repeater function. |
| CTR exNetPortOosBitRate | 1.3.6.1.4.1.66.1.3.2.3.1.1.44 | Counter | read-only | Number of times that frames have been received from this link with the transmission frequency (data rate) badly out of spec. This counter is incremented when the frequency of a received frame is so far out of spec that the packet has been corrupted within the relay. The spec allows deviations of +/- 100 parts per million (ppm). The DAVID ExpressNet Concentrators can handle greater deviations than this, depending on frame length. |
| CTR exNetPortLinkErrors | 1.3.6.1.4.1.66.1.3.2.3.1.1.45 | Counter | read-only | This composite counter includes jabbers, auto-partitions, late collisions, start-frame delimiter errors, and out-of-spec bit rate errors. |
| CTR exNetPortFrameErrors | 1.3.6.1.4.1.66.1.3.2.3.1.1.46 | Counter | read-only | This composite counter includes frame check sequence errors, fragments, short frames, long frames, and alignment errors. |
| CTR exNetPortFragErrors | 1.3.6.1.4.1.66.1.3.2.3.1.1.47 | Counter | read-only | Fragments of packets, shorter than the minimum legal transmission size of 96 bits, that are received on this port. Fragments indicate an external noise hit (a problem on the network). |
| INT exNetPortType | 1.3.6.1.4.1.66.1.3.2.3.1.1.48 | INTEGER | read-only | The type of the port. |
| INT exNetPortMauType | 1.3.6.1.4.1.66.1.3.2.3.1.1.49 | INTEGER | read-only | The type of the MAU attached to the port. |
| INT exNetPortConfig | 1.3.6.1.4.1.66.1.3.2.3.1.1.50 | INTEGER | read-write | The administrative state of the port. If both transmit and receive are enabled, the port state is enabled. If both transmit and receive are disabled, the port state is disabled. |
| INT exNetPortLinkStatConfig | 1.3.6.1.4.1.66.1.3.2.3.1.1.51 | INTEGER | read-write | The administrative status of the link status test for this link. If both transmit and receive are enabled, the link status test is enabled. If both transmit and receive are disabled, the link status test is disabled. This variable applies only to ports with MauType = 10BASE-T. The value other(1) is returned for other MAU types. |
| INT exNetPortPolarity | 1.3.6.1.4.1.66.1.3.2.3.1.1.52 | INTEGER | read-write | The polarity of the port. Applies only to ports with MAU type 10BASE-T. The value other(1) is returned for other MAU types. |
| INT exNetPortTransmitTest | 1.3.6.1.4.1.66.1.3.2.3.1.1.53 | INTEGER | read-write | Whether or not transmit test is enabled on the link. Transmit test applies only to links of type 10BASE-T. The value other(1) is returned for other MAU types. THIS TEST CAN BE DISRUPTIVE TO THE NETWORK. |
| exNetMgmt | 1.3.6.1.4.1.66.1.3.2.4 | |||
| INT exNetMgmtType | 1.3.6.1.4.1.66.1.3.2.4.1 | INTEGER | read-only | The DAVID ExpressNet Ethernet network management type. |
| INT exNetMgmtHwVer | 1.3.6.1.4.1.66.1.3.2.4.2 | INTEGER | read-only | The network management ICM hardware version number: 1=Rev. A, 2=Rev. B, etc. |
| INT exNetMgmtFwVer | 1.3.6.1.4.1.66.1.3.2.4.3 | INTEGER | read-only | The network management ICP firmware version. |
| INT exNetMgmtSwMajorVer | 1.3.6.1.4.1.66.1.3.2.4.4 | INTEGER | read-only | The network management major software version number, where the version number is of the form major.minor, e.g. 3.0. Refers to the ECP (External Communications Processor). |
| INT exNetMgmtSwMinorVer | 1.3.6.1.4.1.66.1.3.2.4.5 | INTEGER | read-only | The network management minor software version number, where the version number is of the form major.minor, e.g. 3.0. Refers to the ECP. |
| INT exNetMgmtStatus | 1.3.6.1.4.1.66.1.3.2.4.6 | INTEGER | read-only | Indicates that the network management is on line and operating. For the DAVID ExpressNet Concentrators, management status is always online(2). |
| INT exNetMgmtMode | 1.3.6.1.4.1.66.1.3.2.4.7 | INTEGER | read-write | Indicates whether the network management is operating in primary or secondary mode. Presently, all DAVID ExpressNet Concentrators return primary(1). |
| INT exNetMgmtReset | 1.3.6.1.4.1.66.1.3.2.4.8 | INTEGER | read-write | Network management reset status. Writing a 2 to this object will reset the network management (stop refreshing the watchdog timer) and restart. |
| INT exNetMgmtRestart | 1.3.6.1.4.1.66.1.3.2.4.9 | INTEGER | read-write | Network management restart status. Writing a 2 to this object will restart the network management. This initializes all the counters, rereads the EEPROM data structure, and starts executing from the beginning of the code. |
| IP exNetMgmtIpAddr | 1.3.6.1.4.1.66.1.3.2.4.10 | IpAddress | read-write | The network management's administrative IP address. This parameter will take effect ONLY after a restart (exNetMgmtRestart) or reset (exNetMgmtReset) is issued. At that time it becomes the operational IP address. The value of the CURRENT operational IP address can be obtained from the ipAdEntAddr entry in the ipAddrTable. |
| IP exNetMgmtNetMask | 1.3.6.1.4.1.66.1.3.2.4.11 | IpAddress | read-write | The network management's administrative subnet mask. This parameter will take effect ONLY after a restart (exNetMgmtRestart) or reset (exNetMgmtReset) is issued. At that time it becomes the operational subnet mask. The value of the CURRENT operational subnet mask can be obtained from the ipAdEntNetMask entry in the ipAddrTable. |
| IP exNetMgmtDefaultGateway | 1.3.6.1.4.1.66.1.3.2.4.12 | IpAddress | read-write | The network management's administrative default gateway IP address. This parameter will take effect ONLY after a restart (exNetMgmtRestart) or reset (exNetMgmtReset) is issued. At that time it becomes the operational default gateway IP address. The value of the CURRENT operational default gateway's IP address can be obtained from the ipRoutingTable. |
| GAU exNetMgmtBaudRate | 1.3.6.1.4.1.66.1.3.2.4.17 | Gauge | read-only | Returns the baud rate in bits per second of the RS-232 port. Note: The Concentrators autobaud to match the device attached to the RS-232 port. |
| STR exNetMgmtLocation | 1.3.6.1.4.1.66.1.3.2.4.19 | DisplayString | read-write | This is an informational string that could be used to show the physical location (i.e., area) of the network management or Concentrator. This parameter is saved in non-volatile memory and will survive a reset. Note: This variable is aliased to the sysLocation variable in the MIB-II system group. Changing one will change the other. It is suggested that the system group variable be used whenever possible. |
| exNetMgmtTrapReceiverTable | 1.3.6.1.4.1.66.1.3.2.4.20 | not-accessible | This entity's Trap Receiver Table (10 entries). | |
| exNetMgmtTrapReceiverEntry | 1.3.6.1.4.1.66.1.3.2.4.20.1 | not-accessible | A destination address and community string to a particular trap receiver. | |
| INT exNetMgmtTrapType | 1.3.6.1.4.1.66.1.3.2.4.20.1.1 | INTEGER | read-write | Setting this object to the value invalid(2) invalidates the corresponding entry in the exNetTrapReceiverTable. That is, it effectively disassociates the address identified with the entry by removing the entry from the table. |
| IP exNetMgmtTrapReceiverAddr | 1.3.6.1.4.1.66.1.3.2.4.20.1.2 | IpAddress | read-write | IP address for trap receiver. |
| OCT exNetMgmtTrapReceiverComm | 1.3.6.1.4.1.66.1.3.2.4.20.1.3 | OCTET STRING | read-write | Community string used for traps. |
| INT exNetMgmtAuthTrap | 1.3.6.1.4.1.66.1.3.2.4.21 | INTEGER | read-write | Enable or disable the use of authentication error trap generation. |
RFC description
DAVID Systems ExpressNet MIB for managing 10BASE-T and FOIRL concentrator/hub products including chassis, modules, ports, and Ethernet interfaces.
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