PDN-IFEXT-MIB

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Category: Network Management

Description: Extends standard IF-MIB with Paradyne-specific interface attributes, operational states, and link-type parameters.

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What Is PDN-IFEXT-MIB?

This is a Paradyne Corporation enterprise MIB that extends the standard IETF IF-MIB with additional interface attributes specific to Paradyne devices, including octet-counter rollover tracking, unavailable-second (UAS) totals, and loopback test configuration. It exposes per-interface extension data such as input/output octet rollover counts to handle 32-bit counter wraparound, total unavailable seconds, and a test-configuration table with near-end/far-end timer settings for loopback testing. It is used to monitor performance/fault status of interfaces at a finer granularity than base IF-MIB, since tracking unavailable seconds reveals service-affecting outages on a circuit while octet rollover counters let long-term throughput trending survive counter wraparound on high-speed links. It has an explicit, stated dependency on the standard IETF IF-MIB, whose ifTable entries it extends via ifIndex-keyed extension tables. It is typically deployed on Paradyne DSL/access transport devices where accurate long-term throughput and availability trending is required for SLA reporting. Engineers can download the PDN-IFEXT-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in PDN-IFEXT-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 Corporation DSL/access transport device

Monitoring Examples

An administrator would poll pdnIfExtTable (via pdnIfExtEntry, keyed by pdnIfExtIndex) to read pdnIfExtInOctetRollovers and pdnIfExtOutOctetRollovers alongside the base ifInOctets/ifOutOctets to compute true throughput on a wrapping 32-bit counter interface. A climbing pdnIfExtTotalUASs value would reveal cumulative unavailable-seconds on a circuit, directly impacting SLA compliance reporting. In pdnIfExtTestConfigTable, checking pdnIfExtTestConfigNearTimer and pdnIfExtTestConfigFarTimer for a given pdnIfExtTestConfigIfIndex would confirm loopback test timers are configured as expected, making this extension essential for accurate throughput and availability trending on Paradyne interfaces.

What Can Be Monitored

interface octet counter rollovers
total unavailable seconds (UAS)
loopback test near/far timer configuration
per-interface throughput trending beyond IF-MIB

Imported Objects

From PDN-HEADER-MIB

pdnIfExt

OBJECT-IDENTITY

From RFC-1212

OBJECT-TYPE

From RFC1155-SMI

Counter
IpAddress

From RFC1213-MIB

ifIndex

From SNMPv2-TC

RowStatus

OIDs

OID symbolic	OID numeric	Type	Access	Description
pdnIfExtConfig	1.3.6.1.4.1.1795.2.24.2.6.12.1
pdnIfExtTable	1.3.6.1.4.1.1795.2.24.2.6.12.1.1		not-accessible	The Paradyne IF-MIB Table Augment.
pdnIfExtEntry	1.3.6.1.4.1.1795.2.24.2.6.12.1.1.1		not-accessible	An entry in the Paradyne If-MIB Interface Config Table.
INT pdnIfExtIndex	1.3.6.1.4.1.1795.2.24.2.6.12.1.1.1.1	INTEGER	read-only	The index value which uniquely identifies the interface for which this entry contains information on interface tests. The interface identified by a particular value of this index is the same interface as identified by the same value of ifIndex from the Interfaces table of MIB II (RFC 1213).
CTR pdnIfExtInOctetRollovers	1.3.6.1.4.1.1795.2.24.2.6.12.1.1.1.2	Counter	read-only	The number of times that the associated instance of the ifInOctets object has overflowed or incremented from the value 2^^32-1 to zero.
CTR pdnIfExtOutOctetRollovers	1.3.6.1.4.1.1795.2.24.2.6.12.1.1.1.3	Counter	read-only	The number of times that the associated instance of the ifOutOctets object has overflowed or incremented from the value 2^^32-1 to zero.
CTR pdnIfExtTotalUASs	1.3.6.1.4.1.1795.2.24.2.6.12.1.1.1.4	Counter	read-only	The number of Unavailable Seconds encountered by this interface.
pdnIfTable	1.3.6.1.4.1.1795.2.24.2.6.12.1.2		not-accessible	This table that contains additional interface configuration information.
pdnIfEntry	1.3.6.1.4.1.1795.2.24.2.6.12.1.2.1		not-accessible	There will be one of these rows for each IP address assigned ot an interface, and one for an unnumbered interface.
IP pdnIfAddr	1.3.6.1.4.1.1795.2.24.2.6.12.1.2.1.1	IpAddress	read-only	The value of this object specifies an interface IP Address. The value 0.0.0.0 means that the interface is unnumbered.
IP pdnIfAddrMask	1.3.6.1.4.1.1795.2.24.2.6.12.1.2.1.2	IpAddress	read-write	The value of this object specifies the subnet mask associated with the corresponding interface IP Address. The value of this object along with corresponding interface IP address, determines a subnet address for the interface.
ROW pdnIfStatus	1.3.6.1.4.1.1795.2.24.2.6.12.1.2.1.3	RowStatus	read-write	This object is used to create a new row or delete an existing row in this table.
pdnIfExtTestConfig	1.3.6.1.4.1.1795.2.24.2.6.12.2
pdnIfExtTestConfigTable	1.3.6.1.4.1.1795.2.24.2.6.12.2.1		not-accessible	The Paradyne Interface Test Table
pdnIfExtTestConfigEntry	1.3.6.1.4.1.1795.2.24.2.6.12.2.1.1		not-accessible	An entry in the Paradyne Interface Test Config Table.
INT pdnIfExtTestConfigIfIndex	1.3.6.1.4.1.1795.2.24.2.6.12.2.1.1.1	INTEGER	read-only	The index value which uniquely identifies the interface for which this entry contains information on interface tests. The interface identified by a particular value of this index is the same interface as identified by the same value of ifIndex from the Interfaces table of MIB II (RFC 1213).
INT pdnIfExtTestConfigNearTimer	1.3.6.1.4.1.1795.2.24.2.6.12.2.1.1.2	INTEGER	read-write	This object is used to specify a near end timer primarily used as a timeout for a local loopback. The time is in seconds.
INT pdnIfExtTestConfigFarTimer	1.3.6.1.4.1.1795.2.24.2.6.12.2.1.1.3	INTEGER	read-write	This object is used to specify a far end timer, primarily used as a timeout from a far end initiated loopback. The time is in seconds.

RFC description

Paradyne interface extensions for IF-MIB augmentation including octet counters and unavailable seconds.

Start monitoring Paradyne DSL/access transport devices 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-IFEXT-MIB

What Is PDN-IFEXT-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description