PDN-LINK-FAULT-MGMT-MIB

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Organization: Paradyne Corporation MIB Working Group

Last Updated: 2003-04-03

Category: DSL and Broadband Access

Description: Manages IEEE 802.3ah OAM link fault management, loopback control, and remote failure indication on Paradyne devices.

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What Is PDN-LINK-FAULT-MGMT-MIB?

PDN-LINK-FAULT-MGMT-MIB is a Paradyne enterprise MIB implementing IEEE 802.3ah-style Ethernet OAM link fault management for primary/secondary link pairs with APS-style automatic protection switching. It exposes link-failure detection timers and thresholds (loss-of-signal, loss-of-frame, AIS-L, signal-degrade/signal-fail BER) along with switchover-selection configuration. Its monitoring purpose is physical-layer link/hardware fault detection: it tracks how long a LOS or LOF condition must persist before triggering a switch, and BER thresholds that determine when a link is considered degraded, giving a direct view into link health and automatic-protection behavior. It is explicitly modeled on IEEE 802.3ah Ethernet OAM link fault management concepts. It is deployed on Paradyne access/transport equipment with dual primary/secondary links requiring automatic protection switching, such as carrier access rings. Engineers can download the PDN-LINK-FAULT-MGMT-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in PDN-LINK-FAULT-MGMT-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 access/transport equipment with protected primary/secondary links

Monitoring Examples

pdnLinkFailureConfigTable/pdnLinkFailureConfigEntry exposes pdnLinkFailureLOSPeriodBeforeSwitching, pdnLinkFailureLOFPeriodBeforeSwitching, pdnLinkFailureSdBerThreshold, and pdnLinkFailureSfBerThreshold. An operator would compare these thresholds against actual link error rates to confirm that a link degrading past pdnLinkFailureSfBerThreshold correctly triggers a switch to the secondary link, and check pdnLinkFaultMgmtApsSelection/pdnLinkFaultMgmtSwitchoverSelection to verify the configured switching mode for the chassis.

What Can Be Monitored

loss-of-signal (LOS) detection timing
loss-of-frame (LOF) detection timing
signal degrade/fail BER thresholds
APS/switchover selection mode
AIS-L period before switching

Imported Objects

From PDN-HEADER-MIB

pdnLinkFaultMgmt

OBJECT-IDENTITY

From RFC1213-MIB

ifIndex

From SNMPv2-CONF

MODULE-COMPLIANCE
OBJECT-GROUP

From SNMPv2-SMI

Integer32
MODULE-IDENTITY
OBJECT-TYPE

OIDs

OID symbolic	OID numeric	Type	Access	Description
pdnLinkFaultMgmtMIB	1.3.6.1.4.1.1795.2.24.2.40.1			This management information module supports the objects to be used for fault management configuration on primary and secondary links.
pdnLinkFaultMgmtMIBObjects	1.3.6.1.4.1.1795.2.24.2.40.1.1
INT pdnLinkFaultMgmtApsSelection	1.3.6.1.4.1.1795.2.24.2.40.1.1.1	INTEGER	read-write	This object is used to enable or disable the Automatic Protection Switching (Aps) feature on this device. This object can not be enabled if the -Switchover due to link failures- is enabled.
INT pdnLinkFaultMgmtSwitchoverSelection	1.3.6.1.4.1.1795.2.24.2.40.1.1.2	INTEGER	read-write	This object is used to enable or disable the Switchover Due to link failures feature on on this device. This object can not be enabled if the APS feature is enabled.
pdnLinkFailureConfigTable	1.3.6.1.4.1.1795.2.24.2.40.1.1.3		not-accessible	This table contains one row per link being monitored for link failures.
pdnLinkFailureConfigEntry	1.3.6.1.4.1.1795.2.24.2.40.1.1.3.1		not-accessible	Configuration information about a particular interface being monitored for link failured.
I32 pdnLinkFailureLOSPeriodBeforeSwitching	1.3.6.1.4.1.1795.2.24.2.40.1.1.3.1.1	Integer32	read-write	This object allows users to configure the amount of time a LOS condition shall exist on this uplink before initiating a switchover. Switchover due to LOS condition on this uplink will not be valid if any of the APS (Automatic Protection Switching) is enabled.
I32 pdnLinkFailureLOFPeriodBeforeSwitching	1.3.6.1.4.1.1795.2.24.2.40.1.1.3.1.2	Integer32	read-write	This object allows users to configure the amount of time a LOF condition shall exist on this uplink before initiating a switchover. Switchover due to LOF condition on this uplink will not be valid if any of the APS (Automatic Protection Switching) is enabled.
I32 pdnLinkFailureAISLPeriodBeforeSwitching	1.3.6.1.4.1.1795.2.24.2.40.1.1.3.1.3	Integer32	read-write	This object allows users to configure the amount of time a AIS-L condition shall exist on this uplink before initiating a switchover. Switchover due to AIS-L condition on this uplink will not be valid if any of the APS (Automatic Protection Switching) is enabled.
I32 pdnLinkFailureSdPeriodBeforeSwitching	1.3.6.1.4.1.1795.2.24.2.40.1.1.3.1.4	Integer32	read-write	This object allows users to configure the amount of time a Signal Degraded (Sd) condition shall exist on this uplink before initiating a switchover. Switchover due to Sd condition on this uplink will not be valid if any of the APS (Automatic Protection Switching) is enabled.
I32 pdnLinkFailureSfPeriodBeforeSwitching	1.3.6.1.4.1.1795.2.24.2.40.1.1.3.1.5	Integer32	read-write	This object allows users to configure the amount of time a Signal Failure Bit (Sf) condition shall exist on this uplink before initiating a switchover. Switchover due to Sf condition on this uplink will not be valid if any of the APS (Automatic Protection Switching) is enabled.
I32 pdnLinkFailureSdBerThreshold	1.3.6.1.4.1.1795.2.24.2.40.1.1.3.1.6	Integer32	read-write	This object allows users to configure the threshold for the Signal Degrade Bit Error Rate (Sd). The negated value of this number is used as the exponent of 10 for computing the threshold value for the Bit Error Rate (BER). For example, a value of 5 indicates a BER threshold of 10^-5.
I32 pdnLinkFailureSfBerThreshold	1.3.6.1.4.1.1795.2.24.2.40.1.1.3.1.7	Integer32	read-write	This object allows users to configure the threshold for the Signal Failure Bit Error Rate (Sf). The negated value of this number is used as the exponent of 10 for computing the threshold value for the Bit Error Rate (BER). For example, a value of 5 indicates a BER threshold of 10^-5.
INT pdnDualLinkSelection	1.3.6.1.4.1.1795.2.24.2.40.1.1.4	INTEGER	read-write	This object is used to enable or disable the ability to split traffic among dual links.
pdnLinkFaultMgmtMIBConformance	1.3.6.1.4.1.1795.2.24.2.40.1.2
pdnLinkFaultMgmtCompliances	1.3.6.1.4.1.1795.2.24.2.40.1.2.1
pdnLinkFaultMgmtCompliance	1.3.6.1.4.1.1795.2.24.2.40.1.2.1.1			The compliance statement for SNMP entities capable of configuring link fault conditions.
pdnLinkFaultMgmtGroups	1.3.6.1.4.1.1795.2.24.2.40.1.2.2
pdnLinkFaultMgmtGeneralGroup	1.3.6.1.4.1.1795.2.24.2.40.1.2.2.1			A collection of configuration objects applicable to link fault mgmt implementation.
pdnLinkSwitchoverGroup	1.3.6.1.4.1.1795.2.24.2.40.1.2.2.2			A collection of configuration objects applicable to all redundancy implementations.

RFC description

Paradyne vendor-private MIB for managing WAN link fault detection and reporting operations.

Start monitoring Paradyne access/transport equipment with protected primary/secondary links (Ethernet OAM link fault management) 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-LINK-FAULT-MGMT-MIB

What Is PDN-LINK-FAULT-MGMT-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description