DH90-MIB

All MIBs › DH90-MIB

Category: Device Management

Description: MIB for DH90 series network devices providing system status, interface, and operational management objects.

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What Is DH90-MIB?

DH90-MIB is a Digital Equipment Corporation (enterprise OID 36) proprietary MIB, functionally equivalent to DECHUB90-MIB, for the DEChub 90 modular hub chassis managed via DECagent 90 modules. It identifies the hub type and standalone configuration, reports backplane type and last-change timestamp, and exposes a per-slot table naming each installed module's type and firmware version. As a configuration/inventory MIB it lets an administrator confirm which module type and version occupies each hub slot. It is deployed on Digital Equipment Corporation DEChub 90 modular hub chassis. Engineers can download the DH90-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in DH90-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

Digital Equipment Corporation DEChub 90 modular hub chassis

Monitoring Examples

An administrator walks dh90SlotTable to inventory which module type and firmware version occupies each slot in a DEChub 90 chassis before planning a firmware upgrade across the hub.

What Can Be Monitored

per-slot module type/version

Imported Objects

From RFC1155-SMI

Counter
Gauge
IpAddress
NetworkAddress
OBJECT-TYPE
TimeTicks
enterprises

From RFC1213-MIB

DisplayString
PhysAddress

OIDs

OID symbolic	OID numeric	Type	Access	Description
dec	1.3.6.1.4.1.36
ema	1.3.6.1.4.1.36.2
decMIBextension	1.3.6.1.4.1.36.2.18
decExp	1.3.6.1.4.1.36.2.18.3
dh90	1.3.6.1.4.1.36.2.18.3.1
INT dh90Type	1.3.6.1.4.1.36.2.18.3.1.1	INTEGER	read-write	Identifies the type of Hub defined and identifies standalone configurations managed by DECagent 90 modules. Setting this variable to invalid deletes the community associated with the community string and releases the RAM and flash memory resources used by the community.
INT dh90Backplane	1.3.6.1.4.1.36.2.18.3.1.2	INTEGER	read-only	Media on backplane of hub.
TIK dh90LastChange	1.3.6.1.4.1.36.2.18.3.1.3	TimeTicks	read-only	The value of the sysUpTime at the time this hub added or removed a module.
INT dh90NumberSlots	1.3.6.1.4.1.36.2.18.3.1.4	INTEGER	read-write	Number of slots in backplane. Setting this variable to values of 1, 8 or 16 defines the size of a hub in a particular community.
dh90SlotTable	1.3.6.1.4.1.36.2.18.3.1.5		not-accessible	A list of modules installed in the DEChub 90. The number of entries is given in dh90SlotNumber. To create a new row (module) in the slot table, set a EMPTY dh90SlotModuleType to the appropriate value. If adding a bridge or server, next set the dh90SlotPhysicalAddress for the row. Sets of the other variables in the row must be done in separate PDUs AFTER the mac address of the device has been set correctly.
dh90SlotEntry	1.3.6.1.4.1.36.2.18.3.1.5.1		not-accessible	Contains objects defining characteristics of modules in the DEChub 90
INT dh90SlotIndex	1.3.6.1.4.1.36.2.18.3.1.5.1.1	INTEGER	read-write	The slot number containing the module
INT dh90SlotModuleType	1.3.6.1.4.1.36.2.18.3.1.5.1.2	INTEGER	read-write	The type of the module in a slot. If the slot is known to be empty, a value of empty is used. If the slot is occupied by a module of unknown type, a value of unknown is used.
STR dh90SlotModuleName	1.3.6.1.4.1.36.2.18.3.1.5.1.3	DisplayString	read-write	A textual description of the module
STR dh90SlotModuleVersion	1.3.6.1.4.1.36.2.18.3.1.5.1.4	DisplayString	read-only	A textual description of the version level of the hardware and firmware of the module
CTR dh90SlotCounterTime	1.3.6.1.4.1.36.2.18.3.1.5.1.5	Counter	read-only	Time since the counters of this module were zeroed
INT dh90SlotIfBase	1.3.6.1.4.1.36.2.18.3.1.5.1.6	INTEGER	read-only	An index into the ifTable for the first interface on this module. Add one to this value to reference the ifTable entry which corresponds to the second interface, etc. If no interface(s) is/are supported on the module, a value of zero is returned.
INT dh90SlotIfNumber	1.3.6.1.4.1.36.2.18.3.1.5.1.7	INTEGER	read-only	Number of interfaces on this module.
PHY dh90SlotPhysicalAddress	1.3.6.1.4.1.36.2.18.3.1.5.1.8	PhysAddress	read-write	A read-write variable for the physical address to allow devices to be added to the hub remotely. Writing this variable as part of a remote add device routine will cause the new physical address to be accessable in the corresponding ifPhysAddress variable in ifTable.
INT dh90SlotNumberOfPorts	1.3.6.1.4.1.36.2.18.3.1.5.1.9	INTEGER	read-only	The number of ports on this module. Returns 8 for DECserver90L and DECrepeater90T, 6 for DECrepeater90C.
STR dh90SlotPassword	1.3.6.1.4.1.36.2.18.3.1.5.1.10	DisplayString	read-write	Password used to enable privileged operations on the DECserver90L and access to the bridge. Reads to this variable will return a null string.
STR dh90SlotNewPassword	1.3.6.1.4.1.36.2.18.3.1.5.1.11	DisplayString	read-write	Setting this variable causes the agent to set a new password on the terminal server using the TSNewPassword value as the new password and TSPassword as the old password. Power on the terminal server must be cycled within a minute for the change to take effect. Reads to this variable will return a null string.
INT dh90SlotPolling	1.3.6.1.4.1.36.2.18.3.1.5.1.12	INTEGER	read-write	The current polling status of the module. If the DECagent 90 is polling this device, a get of this variable will return 'on', otherwise 'off' is returned. Setting this variable to 'off' causes the agent to stop polling the device in this slot. Setting this variable to 'on' causes the agent to start polling the device in the specified slot. If a device does not repond to a poll, an moduleDown enterprise specific trap is generated.
OID dh90SlotPrimarySpecific	1.3.6.1.4.1.36.2.18.3.1.5.1.13	OBJECT IDENTIFIER	read-only	A reference to the Bridge { experimental 14 }, the Character-like { experimental 19 } or the { drpt90 } repeater portion of this MIB definition. If the module realizes some other function, the object identifier nullSpecific OBJECT IDENTIFIER ::= { 0 0 } is returned.
OID dh90SlotSecondarySpecific	1.3.6.1.4.1.36.2.18.3.1.5.1.14	OBJECT IDENTIFIER	read-only	A reference to the RS232-like { experimental 20 } MIB definition, if dh90ModulePrimarySpecific identifies the Character-like MIB. Otherwise, the object identifier nullSpecific OBJECT IDENTIFIER ::= { 0 0 } is returned.
dh90TrapAddressTable	1.3.6.1.4.1.36.2.18.3.1.6		not-accessible	A table of IP Addresses to which this device will send traps.
dh90TrapEntry	1.3.6.1.4.1.36.2.18.3.1.6.1		not-accessible	Each entry contains an IP Address to which all SNMP Traps will be sent by this community.
IP dh90TrapAddress	1.3.6.1.4.1.36.2.18.3.1.6.1.1	IpAddress	read-write	An IP Address to which all SNMP traps generated by this device will be sent. Setting a instance to a value of zero will delete the row in the table.
da90	1.3.6.1.4.1.36.2.18.3.2
CTR da90FlashErasures	1.3.6.1.4.1.36.2.18.3.2.1	Counter	read-only	The number of times the flash memory on this DECagent 90 has been erased. This number is the total of erasures for all segments of flash.
INT da90Maintenance	1.3.6.1.4.1.36.2.18.3.2.2	INTEGER	read-write	A control variable to reset the counters on a DECagent 90. In response to a get-request or a get-next-request, the agent always returns 'ready'. Setting the value to 'reset' causes the entire module to be reset. Setting the value to 'resetToFactory' causes the entire device to be reset to the original factory settings.
INT da90CommunityNumber	1.3.6.1.4.1.36.2.18.3.2.3	INTEGER	read-only	Number of community string-pair entries in da90HubCommStrsTable.
da90CommunityTable	1.3.6.1.4.1.36.2.18.3.2.4		not-accessible	A table of community string pairs for client hubs.
da90CommunityEntry	1.3.6.1.4.1.36.2.18.3.2.4.1		not-accessible	Contains a pair of community strings, one specifying a read-only profile, the other a read-write profile.
INT da90CommunityIndex	1.3.6.1.4.1.36.2.18.3.2.4.1.1	INTEGER	read-write	Index into hub community string pair table, identifies the community being accessed
INT da90CommunityType	1.3.6.1.4.1.36.2.18.3.2.4.1.2	INTEGER	read-write	Identifies whether the current community information in the DENMA is active for this row in the community table. Setting to invalid frees the NVRAM used to store the community information (destroys the slot table and port tables for this community).
OCT da90CommunityROString	1.3.6.1.4.1.36.2.18.3.2.4.1.3	OCTET STRING	read-write	Community string, with a read-only profile, used to access a da90's client Hub. All community strings in the read-only set must be unique. Setting such a community string to a pre-existing value returns a status of BadValue. Reading this variable with any community string other than the agent's community string will return a zero length string.
OCT da90CommunityRWString	1.3.6.1.4.1.36.2.18.3.2.4.1.4	OCTET STRING	read-write	Community string, with a read-write profile, used to access a da90's client Hub. All community strings in the read-only set must be unique. Setting such a community string to a pre-existing value returns a status of BadValue. Reading this variable with any community string other than the agent's read-write community string will return a zero length string.
OCT da90CommunityTrapString	1.3.6.1.4.1.36.2.18.3.2.4.1.5	OCTET STRING	read-write	Community string sent with traps generated due to events caused by this community. The trap community strings do not have to be unique. This variable is read using the agent's community string.
ds90L	1.3.6.1.4.1.36.2.18.3.3
INT ds90LNumberModules	1.3.6.1.4.1.36.2.18.3.3.1	INTEGER	read-only	Number of DECserver 90L Modules represented in the ds90LModuleTable.
ds90LModuleTable	1.3.6.1.4.1.36.2.18.3.3.2		not-accessible	A table of DECserver 90L modules installed in the group. The number of entries is given in ds90LModuleNumber.
ds90LModuleEntry	1.3.6.1.4.1.36.2.18.3.3.2.1		not-accessible	Contains objects defining characteristics of DECserver 90L modules in the group
INT ds90LSlotIndex	1.3.6.1.4.1.36.2.18.3.3.2.1.1	INTEGER	read-only	The slot index value which addresses the dh90SlotTable for this module.
CTR ds90LDot3StatsDeferredTransmissions	1.3.6.1.4.1.36.2.18.3.3.2.1.2	Counter	read-only	A count of frames for which the first transmission attempt on a particular interface is delayed because the medium is busy. The count represented by an instance of this object does not include frames involved in collisions.
CTR ds90LDot3StatsSingleCollisionFrames	1.3.6.1.4.1.36.2.18.3.3.2.1.3	Counter	read-only	A count of successfully transmitted frames on a particular interface for which transmission is inhibited by exactly one collision. (If DS90L is implementing the MIB-II if group, the following also applies: A frame that is counted by an instance of this object is also counted by the corresponding instance of either the ifOutUcastPkts or ifOutNUcastPkts object and is not counted by the corresponding instance of the ds90LDot3StatsMultipleCollisionFrames object.)
CTR ds90LDot3StatsMultipleCollsionFrames	1.3.6.1.4.1.36.2.18.3.3.2.1.4	Counter	read-only	A count of successfully transmitted frames on a particular interface for which transmission is inhibited by more than one collision. (If DS90L is implementing the MIB-II if group, the following also applies: A frame that is counted by an instance of this object is also counted by the corresponding instance of either the ifOutUcastPkts or ifOutNUcastPkts object and is not counted by the corresponding instance of the ds90LDot3StatsSingleCollisionFrames object.)
CTR ds90LEnetDataOverruns	1.3.6.1.4.1.36.2.18.3.3.2.1.5	Counter	read-only	A count of the number of frames arriving at the DS90L lost due to data overrun since it last reinitialized or zeroed counters.
CTR ds90LLatCircMsgsIns	1.3.6.1.4.1.36.2.18.3.3.2.1.6	Counter	read-only	A count of the number of LAT circuit messages received by this DS90L since it last reinitialized or zeroed counters.
CTR ds90LLatCircMsgsOuts	1.3.6.1.4.1.36.2.18.3.3.2.1.7	Counter	read-only	A count of the number of LAT circuit messages transmitted by this DS90L since it last reinitialized or zeroed counters.
CTR ds90LLatSessSolicitAccepts	1.3.6.1.4.1.36.2.18.3.3.2.1.8	Counter	read-only	A count of the number of LAT Solicits accepted by this DS90L since it last reinitialized or zeroed counters.
CTR ds90LLatSessSolicitRejects	1.3.6.1.4.1.36.2.18.3.3.2.1.9	Counter	read-only	A count of the number of LAT Solicits rejected by this DS90L since it last reinitialized or zeroed counters.
CTR ds90LLatCircDuplsMsgs	1.3.6.1.4.1.36.2.18.3.3.2.1.10	Counter	read-only	A count of the number of duplicate LAT messages the DS90L LAT implementation has discarded since it last reinitialized or zeroed counters.
CTR ds90LLatCircMsgRetransmits	1.3.6.1.4.1.36.2.18.3.3.2.1.11	Counter	read-only	A count of the total number of LAT circuit messages this DS90L has retransmitted since it last reinitialized or zeroed counters.
CTR ds90LLatSessIllegalSlots	1.3.6.1.4.1.36.2.18.3.3.2.1.12	Counter	read-only	A count of the number of illegal LAT slots the DS90L has received on all LAT sessions since it last reinitialized or zeroed counters.
CTR ds90LIllegalMulticastRcvs	1.3.6.1.4.1.36.2.18.3.3.2.1.13	Counter	read-only	This counts the number of illegal multicast LAT messages received on this DECserver 90L since it last reinitialized or zeroed counters.
INT ds90LLatCircKeepAlive	1.3.6.1.4.1.36.2.18.3.3.2.1.14	INTEGER	read-only	This defines the number of seconds the LAT circuits provider waits between transmitting LAT circuit layer keep-alive messages. Writing to this object is equivalent to issuing the CHANGE SERVER KEEPALIVE TIMER command via the user interface.
INT ds90LLatCircRetransmitLimit	1.3.6.1.4.1.36.2.18.3.3.2.1.15	INTEGER	read-only	This object defines the maximum number of LAT circuit message retransmissions the server will attempt before declaring the circuit failed. Writing to this object is equivalent to issuing the CHANGE SERVER RETRANSMIT LIMIT command via the user interface.
CTR ds90LLatCircInvalidMsgs	1.3.6.1.4.1.36.2.18.3.3.2.1.16	Counter	read-only	This counts the number of invalid LAT messages received on its entry's LAT circuit since the DECserver90L last reinitialized or zeroed counters.
INT ds90LAuthorizeMode	1.3.6.1.4.1.36.2.18.3.3.2.1.17	INTEGER	read-write	Setting this value to enable causes the SET A,password command to be sent to the DECserver 90. The module will enter authorized mode IF the power is cycled on the module within one minute. The password used will be the current value of dh90ModulePassword. Setting this variable to disable results in authorized mode being cleared
INT ds90LMaintenance	1.3.6.1.4.1.36.2.18.3.3.2.1.18	INTEGER	read-write	A control variable to reset the counters on a DECserver 90L. In response to a get-request or a get-next-request, the agent always returns 'ready'. Setting the value to 'zeroCounters' causes the if, LAT and dh90SlotCounterTime counters to be cleared. Setting the value to 'reset' causes the entire module to be reset, any users and circuits will be disconnected. Setting the value to 'resetToFactory' causes the entire device to be reset to the original factory settings. Passwords, port names and printer speeds will be cleared.
STR ds90LPrompt	1.3.6.1.4.1.36.2.18.3.3.2.1.19	DisplayString	read-write	A DECserver 90L+ (PLUS) variable. Contains the prompt displayed when a session is local to the PLUS version of the terminal server. The default value is '->'. This variable is not present if the server is a DECserver 90L.
ds90LPortTable	1.3.6.1.4.1.36.2.18.3.3.3		not-accessible	Table of port specific variables on this DECserver90L.
ds90LPortEntry	1.3.6.1.4.1.36.2.18.3.3.3.1		not-accessible	A single LAT session instance this DS90L currently provides.
INT ds90LPortIndex	1.3.6.1.4.1.36.2.18.3.3.3.1.1	INTEGER	read-only	The value of charPortIndex for this port.
INT ds90LPortRemoteModification	1.3.6.1.4.1.36.2.18.3.3.3.1.2	INTEGER	read-write	Enables and disables remote modification of of the port by the host system.
INT ds90LPortType	1.3.6.1.4.1.36.2.18.3.3.3.1.3	INTEGER	read-write	Selects the type of device connected to the port.
INT ds90LPortBreak	1.3.6.1.4.1.36.2.18.3.3.3.1.4	INTEGER	read-write	Determines if the port responds to local or remote break.
INT ds90LPortTest	1.3.6.1.4.1.36.2.18.3.3.3.1.5	INTEGER	read-write	Setting this variable to enable places the port into loopback mode. Loopback mode can be used to verify that a port is receiving and sending characters.
INT ds90LPortAutoConfigure	1.3.6.1.4.1.36.2.18.3.3.3.1.6	INTEGER	read-write	A DECserver 90L+ (PLUS) variable. Enables or disables the Autoconfiguration of the port, the ability of the port to autobaud. Disabling autoconfiguration also causes the speed and characteristics of the port to be stored in non-volatile memory on the server. The variable is not present if the server is a DECserver 90L.
INT ds90LPortOnDemandLoading	1.3.6.1.4.1.36.2.18.3.3.3.1.7	INTEGER	read-write	A DECserver 90L+ (PLUS) variable. Enables or disables on demand loading of fonts. The variable is not present if the server is a DECserver 90L.
ds90LSessionTable	1.3.6.1.4.1.36.2.18.3.3.4		not-accessible	The list of all LAT sessions active on this DECserver90L.
ds90LSessionEntry	1.3.6.1.4.1.36.2.18.3.3.4.1		not-accessible	A single LAT session instance this DS90L currently provides.
INT ds90LSessionPort	1.3.6.1.4.1.36.2.18.3.3.4.1.1	INTEGER	read-only	The value of charPortIndex for the port to which this session belongs.
INT ds90LSessionIndex	1.3.6.1.4.1.36.2.18.3.3.4.1.2	INTEGER	read-only	The session index in the context of the port, a non-zero positive integer. Will be 1 for the DECserver90L, 4 for DECserver 90L+.
STR ds90LSessionRemoteNode	1.3.6.1.4.1.36.2.18.3.3.4.1.3	DisplayString	read-only	The name of the remote node providing the service for this session.
STR ds90LSessionService	1.3.6.1.4.1.36.2.18.3.3.4.1.4	DisplayString	read-only	The service to which this session is connected.
STR ds90LSessionRemotePortId	1.3.6.1.4.1.36.2.18.3.3.4.1.5	DisplayString	read-only	The name of the port at the remote node providing the connection, for instance LAT121.
drpt90	1.3.6.1.4.1.36.2.18.3.4
drpt90PortTable	1.3.6.1.4.1.36.2.18.3.4.1		not-accessible	A list of port entries. The index for a repeater port is given by (slot number*100) + port number The number of ports is given by dh90SlotTable.dh90SlotEntry. dh90SlotNumberOfPorts.
drpt90PortEntry	1.3.6.1.4.1.36.2.18.3.4.1.1		not-accessible	A collection of objects containing information for a given interface.
INT drpt90PortIndex	1.3.6.1.4.1.36.2.18.3.4.1.1.1	INTEGER	read-only	Identifies the module and port. The value of this object is given by: (slot number*100) + port number
STR drpt90PortName	1.3.6.1.4.1.36.2.18.3.4.1.1.2	DisplayString	read-write	The text description of the port given by management
INT drpt90PortAdminStatus	1.3.6.1.4.1.36.2.18.3.4.1.1.3	INTEGER	read-write	The desired state of the port.
INT drpt90PortState	1.3.6.1.4.1.36.2.18.3.4.1.1.4	INTEGER	read-only	The state of the port. Unknown(1) is returned when the port state cannot be determined. AutoPartitioned(2) indicates that the repeater has disabled the port automatically, ManagementPartitioned(3) indicates that the port has been disabled remotely, and active(4) indicates that the port is operational.
INT drpt90PortType	1.3.6.1.4.1.36.2.18.3.4.1.1.5	INTEGER	read-only	The Physical Medium type of the port
CTR drpt90PortPartitionCount	1.3.6.1.4.1.36.2.18.3.4.1.1.6	Counter	read-only	The number of times this port has partitioned. This value is only significant if drpt90PortStatus is not unknown(1).
INT drpt90PortAutoPartitionReason	1.3.6.1.4.1.36.2.18.3.4.1.1.7	INTEGER	read-only	Errors currently detected on the port.
INT drpt90PortJamBits	1.3.6.1.4.1.36.2.18.3.4.1.1.8	INTEGER	read-only	The number of jam bits being used on the port segment.
drpt90PortAddrTable	1.3.6.1.4.1.36.2.18.3.4.2		not-accessible	A list of MAC addresses paired with the repeater port on which they have been seen.
drpt90PortAddrEntry	1.3.6.1.4.1.36.2.18.3.4.2.1		not-accessible	A MAC addresses and the repeater port on which it resides.
PHY drpt90PortPhyAddr	1.3.6.1.4.1.36.2.18.3.4.2.1.1	PhysAddress	read-only	A MAC address seen on this port
INT drpt90PortAddrIndex	1.3.6.1.4.1.36.2.18.3.4.2.1.2	INTEGER	read-only	Identifies the module and port. The value of this object the same as drpt90PortIndex and is given by: (slot number*100) + port number
db90ext	1.3.6.1.4.1.36.2.18.3.5
db90system	1.3.6.1.4.1.36.2.18.3.5.1
dbSysChar	1.3.6.1.4.1.36.2.18.3.5.1.1
INT dbSysRomVersion	1.3.6.1.4.1.36.2.18.3.5.1.1.1	INTEGER	read-only	The version number of the software stored in ROM.
INT dbSysInitSwitch	1.3.6.1.4.1.36.2.18.3.5.1.1.2	INTEGER	read-write	This object allows the management action of initializing a device and forcing it to run selftest. It can also be used to reset all information added to the device's NVRAM. When read, it returns a value of other(1). When set to a value of 'reset', the bridge will empty the forwarding data base and start relearning. When set to 'resetToFactory', the bridge will empty the forwarding data base, reset spanning tree and clear all protocol filters and password.
dbSysStatus	1.3.6.1.4.1.36.2.18.3.5.1.2
INT dbSysDeviceState	1.3.6.1.4.1.36.2.18.3.5.1.2.1	INTEGER	read-only	The operational state of the device.
INT dbSysNvramFailed	1.3.6.1.4.1.36.2.18.3.5.1.2.2	INTEGER	read-only	A flag, that, when set to True, indicates that the NVRAM failed selftest following the last initialization of the device. Values set to variables maintained on the bridge will not be preserved over a power cycle of the bridge.
db90interfaces	1.3.6.1.4.1.36.2.18.3.5.2
dbIfTable	1.3.6.1.4.1.36.2.18.3.5.2.1		not-accessible	A list of interface entries. The number of entries is given by ifNumber, defined in [2].
dbIfEntry	1.3.6.1.4.1.36.2.18.3.5.2.1.1		not-accessible	A collection of objects containing information for a given interface.
INT dbIfIndex	1.3.6.1.4.1.36.2.18.3.5.2.1.1.1	INTEGER	read-only	Identifies the Interface. The value of this the same object is as the ifIndex, defined in [2], for this interface.
CTR dbIfBadFramesReceived	1.3.6.1.4.1.36.2.18.3.5.2.1.1.2	Counter	read-only	Number of frames received with a bad frame check sequence or the device received a frame loss indication from the hardware on the interface.
CTR dbIfTransmitFramesError	1.3.6.1.4.1.36.2.18.3.5.2.1.1.3	Counter	read-only	Number of frames that were transmitted with an error on the line.
db90bridge	1.3.6.1.4.1.36.2.18.3.5.3
db90Char	1.3.6.1.4.1.36.2.18.3.5.3.1
INT db90LB100SpanningTreeVer	1.3.6.1.4.1.36.2.18.3.5.3.1.1	INTEGER	read-only	The version number of the Spanning Tree algorithm used by the bridge when in the LAN Bridge 100 Spanning Tree mode.
INT db90802SpanningTreeVer	1.3.6.1.4.1.36.2.18.3.5.3.1.2	INTEGER	read-only	The version number of the Spanning Tree algorithm used by the bridge when in the 802.1d Spanning Tree mode.
INT db90MaxForwardingDBEntries	1.3.6.1.4.1.36.2.18.3.5.3.1.3	INTEGER	read-only	The maximum number of address entries that the bridge can store in its volatile memory.
INT db90MaxNVForwardingDBEntries	1.3.6.1.4.1.36.2.18.3.5.3.1.4	INTEGER	read-only	The maximum number of permanent address entries that the bridge can store in its NVRAM.
INT db90MaxProtocolDBEntries	1.3.6.1.4.1.36.2.18.3.5.3.1.5	INTEGER	read-only	The maximum number of protocol entries that the bridge can store in its protocol database. These entries control the handling of frames based on their Ethernet PT, IEEE 802.2 DSAP or IEEE 802 SNAP Protocol ID.
INT db90MaxNVProtocolDBEntries	1.3.6.1.4.1.36.2.18.3.5.3.1.6	INTEGER	read-only	The maximum number of protocol entries that the bridge can store in its nonvolatile memory. These are retained after a power-down.
db90Stat	1.3.6.1.4.1.36.2.18.3.5.3.2
INT db90CurrProtocolDBEntries	1.3.6.1.4.1.36.2.18.3.5.3.2.1	INTEGER	read-only	The number of protocol entries that are stored in the bridge's protocol database. These control the handling of frames based on their Ethernet protocol type, IEEE 802.2 DSAP, or 802 SNAP Protocol ID.
INT db90CurrNVProtocolDBEntries	1.3.6.1.4.1.36.2.18.3.5.3.2.2	INTEGER	read-only	The number of protocol entries in the bridge's NVRAM. These are retained after a power loss.
INT db90MgmtHeardPort	1.3.6.1.4.1.36.2.18.3.5.3.2.3	INTEGER	read-only	The port on which this command was received.
OCT db90LB100BeingPolled	1.3.6.1.4.1.36.2.18.3.5.3.2.4	OCTET STRING	read-only	The address of the LAN Bridge 100 mode bridge that sent this bridge into the LAN Bridge 100 Spanning Tree mode. If this bridge is the Root, this object indicates the bridge that will be polled periodically to determine if it is still necessary to stay in this Spanning Tree mode.
INT db90TimeSinceLastHello	1.3.6.1.4.1.36.2.18.3.5.3.2.5	INTEGER	read-only	The number of seconds since the bridge last sent a Hello message.
INT db90HubManagement	1.3.6.1.4.1.36.2.18.3.5.3.2.6	INTEGER	read-write	Indicates whether the bridge is managing the hub (i.e., is capable of managing repeaters inserted in the hub).
CTR db90CurrFdbEntries	1.3.6.1.4.1.36.2.18.3.5.3.2.7	Counter	read-only	The number of entries currently active in the DECbridge 90 forwarding data base, or one more than the value of db90MaxForwardingDBEntries if the bridge has exceededd the size of the forwarding data base hardware.
db90Coun	1.3.6.1.4.1.36.2.18.3.5.3.3
CTR db90SpanningTreeModeChanges	1.3.6.1.4.1.36.2.18.3.5.3.3.1	Counter	read-only	The number of times that the bridge switched from the 802.1d Spanning Tree mode to the LB100 Spanning Tree mode.
db90Span	1.3.6.1.4.1.36.2.18.3.5.3.4
INT db90BestRootAge	1.3.6.1.4.1.36.2.18.3.5.3.4.1	INTEGER	read-only	The age, in hundredths of seconds, of the Hello message that established the best root.
INT db90TopologyChangeFlag	1.3.6.1.4.1.36.2.18.3.5.3.4.2	INTEGER	read-only	A flag that indicates whether a Topology Change is currently in effect on the extended LAN.
INT db90TellParentFlag	1.3.6.1.4.1.36.2.18.3.5.3.4.3	INTEGER	read-only	A flag that indicates if the bridge is attempting to propagate a topology change towards the Root.
INT db90ForwardingDBShortAgingTime	1.3.6.1.4.1.36.2.18.3.5.3.4.4	INTEGER	read-only	The number of seconds that the bridge keeps learned entries active while a topology change is in effect.
INT db90BadHelloLimit	1.3.6.1.4.1.36.2.18.3.5.3.4.5	INTEGER	read-only	The number of hello intervals during which the bridge receives one or more bad hellos on a line, before the bridge performs a test on the link. A bad Hello message is one that contains inferior information that is received on a port on which this bridge is Designated.
INT db90BadHelloResetTimer	1.3.6.1.4.1.36.2.18.3.5.3.4.6	INTEGER	read-write	The number of Hello intervals without bad Hellos that the bridge will wait before it resets its bad Hello count to zero.
INT db90NoFrameInterval	1.3.6.1.4.1.36.2.18.3.5.3.4.7	INTEGER	read-only	The The number of seconds of inactivity on a line that will cause the bridge to run a test on that line. The bridge considers a line to be inactive if it does not receive any frames on that line.
INT db90LB100PollTime	1.3.6.1.4.1.36.2.18.3.5.3.4.8	INTEGER	read-only	The number of seconds that a Root bridge in LAN Bridge 100 mode waits between polling the LAN Bridge 100 that is keeping it in this mode. This polling is done to determine whether the LB100 is still present on the extended LAN.
INT db90LB100ResponseTimeout	1.3.6.1.4.1.36.2.18.3.5.3.4.9	INTEGER	read-only	The number of seconds that a Root in LAN Bridge 100 Spanning Tree mode will wait for a response from the LAN Bridge 100 which is keeping it in this mode, before which it will assume that the LB100 is no longer on the extended LAN.
INT db90LB100SpanningTreeCompat	1.3.6.1.4.1.36.2.18.3.5.3.4.10	INTEGER	read-only	A switch that controls the Spanning Tree mode used by the bridge. If in Auto-Select mode, the bridge will go into 802 Spanning Tree mode by default, but will switch to LB100 mode as soon as a LB100 is detected. In 802 Spanning Tree mode, the bridge will stay in 802 mode.
db90PortInterfaces	1.3.6.1.4.1.36.2.18.3.5.3.5
db90IfTable	1.3.6.1.4.1.36.2.18.3.5.3.5.1		not-accessible	A list of interface entries. The number of entries is given by ifNumber, defined in [2].
db90IfEntry	1.3.6.1.4.1.36.2.18.3.5.3.5.1.1		not-accessible	A collection of objects containing information for a given interface.
INT db90IfIndex	1.3.6.1.4.1.36.2.18.3.5.3.5.1.1.1	INTEGER	read-only	Identifies the Interface. The value of this object is the same as the ifIndex, defined in [2], for this interface.
CTR db90IfDeviceFramesReceived	1.3.6.1.4.1.36.2.18.3.5.3.5.1.1.2	Counter	read-only	The number of frames addressed to the bridge itself that were received on this line.
CTR db90IfBadHelloLimitExceeded	1.3.6.1.4.1.36.2.18.3.5.3.5.1.1.3	Counter	read-only	The number of times that the Bad Hellos on the line exceeded the Bad Hello limit.
db90IfEtherTable	1.3.6.1.4.1.36.2.18.3.5.3.5.2		not-accessible	A list of interface entries for an Ethernet port.
db90IfEtherEntry	1.3.6.1.4.1.36.2.18.3.5.3.5.2.1		not-accessible	A collection of objects containing information for a given interface.
INT db90IfEthIndex	1.3.6.1.4.1.36.2.18.3.5.3.5.2.1.1	INTEGER	read-only	Identifies the Interface. The value of this object is the same as the ifIndex, defined in [2], for this interface.
CTR db90IfEthFramingError	1.3.6.1.4.1.36.2.18.3.5.3.5.2.1.2	Counter	read-only	The number of times that a frame received on the line contained both a noninteger multiple of 8 bits and a CRC error.
CTR db90IfEthCarrierLoss	1.3.6.1.4.1.36.2.18.3.5.3.5.2.1.3	Counter	read-only	The number of times that the bridge detected a loss of the carrier signal while transmitting a frame on the line.
CTR db90IfEthCollisionLimitExceeded	1.3.6.1.4.1.36.2.18.3.5.3.5.2.1.4	Counter	read-only	The number of times that the bridge failed to transmit a frame on this line after 16 attempts, the collision limit.
db90IfSpanTable	1.3.6.1.4.1.36.2.18.3.5.3.5.3		not-accessible	A list of interface entries for a port.
db90IfSpanEntry	1.3.6.1.4.1.36.2.18.3.5.3.5.3.1		not-accessible	A collection of objects containing information for a given interface.
INT db90IfSpIndex	1.3.6.1.4.1.36.2.18.3.5.3.5.3.1.1	INTEGER	read-only	Identifies the Interface. The value of this object is the same as the ifIndex, defined in [2], for this interface.
INT db90IfSpDesigRootAge	1.3.6.1.4.1.36.2.18.3.5.3.5.3.1.2	INTEGER	read-only	The age, in hundreths of seconds, of the last Hello message received from the designated bridge on the line.
INT db90IfSpForwardDelayTimer	1.3.6.1.4.1.36.2.18.3.5.3.5.3.1.3	INTEGER	read-only	The time remaining, in hundreths of seconds, before the bridge will leave the Learning State of Preforwarding, and enter the Forwarding State.
CTR db90IfSpBadHelloCount	1.3.6.1.4.1.36.2.18.3.5.3.5.3.1.4	Counter	read-only	The number of Hello intervals during which at least one Bad Hello was received.
INT db90IfSpTopologyChangeAckFlag	1.3.6.1.4.1.36.2.18.3.5.3.5.3.1.5	INTEGER	read-only	A flag that indicates whether a topology change notification received on a link that we are designated on needs to be acknowledged.
db90ProtoFilt	1.3.6.1.4.1.36.2.18.3.5.3.6
INT db90ProtoFilterOther	1.3.6.1.4.1.36.2.18.3.5.3.6.1	INTEGER	read-only	Action taken by the bridge on Ethernet protocol types or the 5-byte SNAP PIDs other than those specified in the db90ProtoTable. This value defaults to forward(1) and is modified only if a protocol with db90filterEntry.db90FilterStatus of forward(1) is entered into the table.
db90ProtoFilterTable	1.3.6.1.4.1.36.2.18.3.5.3.6.2		not-accessible	A table that contains filtering information about Ethernet protocol types and 5 byte SNAP PIDs for the DECbridge 90.
db90ProtoFilterEntry	1.3.6.1.4.1.36.2.18.3.5.3.6.2.1		not-accessible	A table that contains filtering characteristics for Ethernet protocol types and 5 byte SNAP PIDs for the DECbridge 90.
OCT db90ProtoFilterProtocol	1.3.6.1.4.1.36.2.18.3.5.3.6.2.1.1	OCTET STRING	read-write	The protocol type or SNAP PID in a frame to which this entry's filtering information applies. The length is 2 for Ethernet protocol types and 5 for SNAP PID.
INT db90ProtoFilterType	1.3.6.1.4.1.36.2.18.3.5.3.6.2.1.2	INTEGER	read-write	The type of this entry. unknown(1) specifies that this protocol filter is unused. invalid(2) deletes the filter. ethernet(3) or snap-sap(4) defines the size of db90ProtoFilterProtocol.
INT db90ProtoFilterStatus	1.3.6.1.4.1.36.2.18.3.5.3.6.2.1.3	INTEGER	read-write	Action taken by bridge when it sees this ethernet protocol type or SNAP PID in a received frame. Note that this value must be identical to db90ProtoFilterOther unless db90ProtoFilterMulticastFlag is multicastOnly(2) or there are no other entries with db90ProtoFilterMulticastFlag=allFrames(1).
INT db90ProtoFilterMulticastFlag	1.3.6.1.4.1.36.2.18.3.5.3.6.2.1.4	INTEGER	read-write	Identifies whether or not filtering is based on the multicast bit in the MAC destination address. If allFrames(1), then filtering is performed as per db90ProtoFilterStatus. For multicastOnly(2), multicast frames for this protocol are always filtered and unicast frames are always forwarded; this is true regardless of the value of db90ProtoFilterOther.
INT db90ProtoFilterPortMask	1.3.6.1.4.1.36.2.18.3.5.3.6.2.1.5	INTEGER	read-write	Must be allPorts(3) unless db90ProtoFilterMulticastFlag is multicastOnly, in which case any specification is valid.

RFC description

DEC DEChub 90 hub and DECagent 90 proxy agent management for bridges, terminal servers, and repeaters.

Start monitoring Digital Equipment Corporation DEChub 90 modular hub chassis 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.

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RFC description