PDN-STACKABLE-MIB

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Organization: Paradyne Networks MIB Working Group Other information about group editing the MIB

Last Updated: 2004-09-14

Category: Network Management

Description: Manages Paradyne stackable device topology, inter-unit links, and stack member role assignment.

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What Is PDN-STACKABLE-MIB?

PDN-STACKABLE-MIB is a Paradyne enterprise MIB for configuring and reporting on stack topology and unit membership in Paradyne stackable access products, where multiple physical units are cabled together and managed as one logical device. It exposes a stacking-method setting, a stack-configuration table describing each unit (external ID, entity-physical index, GUID, and presence), and a command table for moving a unit from one stack position to another. Its monitoring role is hardware inventory/topology health -- confirming every expected unit is present in the stack, correctly identified, and mapped to the right physical entity index, detecting a unit that has been removed, failed, or is misidentified within the stack. It does not declare a formal IETF dependency, though its physical-entity-index object implies alignment with the standard ENTITY-MIB's physical-entity indexing. It is deployed on Paradyne stackable access/DSLAM products where operators manage a group of physically stacked units as a single logical network element. Engineers can download the PDN-STACKABLE-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in PDN-STACKABLE-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

Paradyne stackable access equipment/DSLAM

Monitoring Examples

An operator walks pdnStackConfigurationTable/Entry to check pdnUnitPresent for each expected pdnUnitExternalID, immediately spotting a stack member that has dropped out or lost connectivity to the stack. pdnUnitGUID and pdnUnitEntPhysicalIndex let the operator confirm a given stack slot is occupied by the expected physical unit after a hardware swap. The pdnMoveUnitCmdTable/Entry (via pdnMoveUnitSrcNumber) is used to issue a command relocating a unit within the stack, and pdnStackableNotifications would alert on stack membership changes.

What Can Be Monitored

stack unit presence
unit identity (GUID/external ID)
unit-to-physical-entity mapping
stack method configuration

Imported Objects

From PDN-HEADER-MIB

pdn-common

From PDN-TC

SwitchState

From SNMPv2-CONF

MODULE-COMPLIANCE
NOTIFICATION-GROUP
OBJECT-GROUP

From SNMPv2-SMI

Integer32
MODULE-IDENTITY
NOTIFICATION-TYPE
OBJECT-TYPE
Unsigned32

From SNMPv2-TC

DisplayString
TruthValue

OIDs

OID symbolic	OID numeric	Type	Access	Description
pdnStackable	1.3.6.1.4.1.1795.2.24.2.36			This MIB contains objects that are used for configuration and statistics reporting things that are unique to a stackable product.
pdnStackableNotifications	1.3.6.1.4.1.1795.2.24.2.36.0
NTF pdnStackUnitAdded	1.3.6.1.4.1.1795.2.24.2.36.0.1			This trap signifies that a new unit has been added to a stack.
NTF pdnStackUnitComFailure	1.3.6.1.4.1.1795.2.24.2.36.0.2			This trap signifies that a loss of communication has occured with a unit that was part of a stack.
NTF pdnStackUnitComRestored	1.3.6.1.4.1.1795.2.24.2.36.0.3			This trap signifies that communication to a unit that was part of the stack has occured.
pdnStackableObjects	1.3.6.1.4.1.1795.2.24.2.36.1
BIT wanInterface	1.3.6.1.4.1.1795.2.24.2.36.1.1	Bits	read-write	This object allows the WAN interface to be selected. Given that the syntax for this object is BITS, it is intented that the implementation could support multiple-simulatneous uplinks. There is no default value suggested or specified with a DEFVAL directive. The intent is that the particular project using this MIB object will specify its own default value. It seems like projects using this MIB object may be different enough that it would not be a good idea to specify a default here.
INT pdnStackMethod	1.3.6.1.4.1.1795.2.24.2.36.1.2	INTEGER	read-only	This object identifies the method by which units are interconnected.
pdnStackConfigurationTable	1.3.6.1.4.1.1795.2.24.2.36.1.3		not-accessible	This table is used to display the stack configuration. Implementation details regarding units becoming attached to or removed from the Stack should be covered in the implementation's Operational Specification.
pdnStackConfigurationEntry	1.3.6.1.4.1.1795.2.24.2.36.1.3.1		not-accessible	Each entry represents a unit in the stack.
U32 pdnUnitExternalID	1.3.6.1.4.1.1795.2.24.2.36.1.3.1.1	Unsigned32	not-accessible	This object is the External ID used to refer to a particular unit. The value of this External ID will typically be indicated on the unit by some means such as a LED.
I32 pdnUnitEntPhysicalIndex	1.3.6.1.4.1.1795.2.24.2.36.1.3.1.2	Integer32	read-only	This object serves to map the table row to an entry into the entPhysicalTable. This object will contain the entPhysicalIndex associated with the unit.
T/F pdnUnitAssigned	1.3.6.1.4.1.1795.2.24.2.36.1.3.1.3	TruthValue	read-write	This object indicates if the External ID has been assigned to a particular Globally Unique Identifier (GUID). Writing a false(2) is a mechanism to delete a unit from a stack. When a unit is deleted from a stack, all data that the Stack knows about the unit is purged. On read operations: true(1) - indicates that the External ID has been assigned to a unit false(2) - indicates that the External ID has not been assigned to a unit
STR pdnUnitGUID	1.3.6.1.4.1.1795.2.24.2.36.1.3.1.4	DisplayString	read-only	This object is the representation of the units' Globally Unique Identifier (GUID). The requirement for this identifier is that is something that makes the unit uniquely identifiable. A MAC addresses is an example of something that could be used as a GUID. The particular implementation's Operational Specification should clarify what is used as the implementation's GUID.
T/F pdnUnitPresent	1.3.6.1.4.1.1795.2.24.2.36.1.3.1.5	TruthValue	read-only	This object identifies if the unit is present in the stack. Note that when a unit is removed from a stack, its stack and configuration information is retained. true(1) - indicates that the unit is present false(2) - indicates that the unit is no present
pdnMoveUnitCmdTable	1.3.6.1.4.1.1795.2.24.2.36.1.4		not-accessible	This table contains the objects necessary to support a command to move a unit in a stack. This command only applies when singleManagementEntity is enabled.
pdnMoveUnitCmdEntry	1.3.6.1.4.1.1795.2.24.2.36.1.4.1		not-accessible	The table has a single row supporting a command to move a unit in a stack.
U32 pdnMoveUnitSrcNumber	1.3.6.1.4.1.1795.2.24.2.36.1.4.1.1	Unsigned32	not-accessible	This object is used as a table index and serves as the identifier for the source unit in the move command. The implementation's Operational Specification should clearly specify what this object represents. For example, this object could be what is refered to as the unit's External ID.
U32 pdnMoveUnitDestNumber	1.3.6.1.4.1.1795.2.24.2.36.1.4.1.2	Unsigned32	not-accessible	This object is used as a table index and serves as the identifier for the destination unit in the move command.The implementation's Operational Specification should clearly specify what this object represents. For example, this object could be what is refered to as the unit's External ID.
INT pdnMoveUnitCmd	1.3.6.1.4.1.1795.2.24.2.36.1.4.1.3	INTEGER	read-write	Writing the value move(2) will cause the stack and configuration related information for the source unit to be moved to the destination unit. This object always returns a noOp(1) on a read operation.
SWI pdnStackUnitAddedTrapEnable	1.3.6.1.4.1.1795.2.24.2.36.1.5	SwitchState	read-write	Indicates whether the pdnStackUnitAdded trap should be generated. The following values are defined for this object: enabled(1) - Generates the trap disabled(2) - Does not generate the trap
SWI pdnStackUnitComFailureTrapEnable	1.3.6.1.4.1.1795.2.24.2.36.1.6	SwitchState	read-write	Indicates whether the pdnStackUnitComFailure trap should be generated. The following values are defined for this object: enabled(1) - Generates the trap disabled(2) - Does not generate the trap
SWI pdnStackUnitComRestoredTrapEnable	1.3.6.1.4.1.1795.2.24.2.36.1.7	SwitchState	read-write	Indicates whether the pdnStackUnitComRestored trap should be generated. The following values are defined for this object: enabled(1) - Generates the trap disabled(2) - Does not generate the trap
pdnStackableAFNs	1.3.6.1.4.1.1795.2.24.2.36.2
pdnStackableConformance	1.3.6.1.4.1.1795.2.24.2.36.3
pdnStackableCompliances	1.3.6.1.4.1.1795.2.24.2.36.3.1
pdnStackableConmpliance	1.3.6.1.4.1.1795.2.24.2.36.3.1.1			The compliance statement for elements implementing stackable units.
pdnStackableGroups	1.3.6.1.4.1.1795.2.24.2.36.3.2
pdnStackableObjGroups	1.3.6.1.4.1.1795.2.24.2.36.3.2.1
wanInterfaceGroup	1.3.6.1.4.1.1795.2.24.2.36.3.2.1.1			Objects related to the WAN.
singleManagementEntityGroup	1.3.6.1.4.1.1795.2.24.2.36.3.2.1.2			Objects related to the Single Management Entity.
pdnStackableAfnGroups	1.3.6.1.4.1.1795.2.24.2.36.3.2.2
pdnStackableNtfyGroups	1.3.6.1.4.1.1795.2.24.2.36.3.2.3
singleManagementEntityNotificationGroup	1.3.6.1.4.1.1795.2.24.2.36.3.2.3.1			Notifications that must be implemented for Single Management Entity implementations.

RFC description

Vendor-private MIB from Paradyne for stackable switch/device management; defines objects for managing multi-unit stacked network appliances.

Start monitoring Paradyne stackable access equipment/DSLAM (stack topology/unit membership) 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 PDN-STACKABLE-MIB

What Is PDN-STACKABLE-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description