PDN-MPE-BRIDGE-MIB

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Category: DSL and Broadband

Description: Manages bridging and VLAN forwarding functions on the Paradyne Multi-Port Ethernet (MPE) expansion module.

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What Is PDN-MPE-BRIDGE-MIB?

PDN-MPE-BRIDGE-MIB is a Paradyne enterprise MIB for the Multi-Port Ethernet (MPE) expansion module, managing 802.1D bridging and VLAN forwarding behavior. It exposes generic bridge configuration objects and a bridge forwarding database (filtering database) that records learned MAC address to port mappings. It is used to monitor the software-level status of the bridging function, such as the size and contents of the forwarding database and overall bridge state, which helps identify MAC learning problems, forwarding loops, or VLAN misconfiguration on the module rather than physical hardware faults. It mirrors the structure of the standard IETF BRIDGE-MIB (RFC 4188) dot1dTpFdb concepts, applied as a Paradyne-specific extension for the MPE card. It is deployed on Paradyne DSL access platforms fitted with the MPE Ethernet bridging module, and technicians supporting these platforms can perform a PDN-MPE-BRIDGE-MIB download to load the module into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in PDN-MPE-BRIDGE-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 MPE Ethernet module
DSL access multiplexer expansion card

Monitoring Examples

An administrator would query mpePdnDot1dTpFdb (modeled on dot1dTpFdbTable) to see which MAC addresses are currently learned on which bridge ports, useful for tracing a connectivity issue to a specific port. Reviewing mpePdnDot1dGenericBridge configuration confirms bridging mode and VLAN forwarding settings are as provisioned. Traps under mpePdnBridgeMIBTraps would signal bridge topology or forwarding anomalies such as unexpected MAC flapping.

What Can Be Monitored

bridge forwarding database (learned MAC addresses)
bridge/VLAN configuration
bridging trap events

Imported Objects

From ENTITY-MIB

entPhysicalIndex

OBJECT-TYPE

From PDN-HEADER-MIB

mpe-bridge

From PDN-TC

VnidRange

From RFC-1212

OBJECT-TYPE

From RFC1155-SMI

Counter

From RFC1213-MIB

ifIndex

From SNMPv2-TC

MacAddress

OIDs

OID symbolic	OID numeric	Type	Access	Description
mpePdnBridgeGenericMIBObjects	1.3.6.1.4.1.1795.2.24.12.21.1
mpePdnDot1dGenericBridge	1.3.6.1.4.1.1795.2.24.12.21.1.1
mpePdnDot1dBridgeTable	1.3.6.1.4.1.1795.2.24.12.21.1.1.1		not-accessible	A table that contains generic information about the bridge.
mpePdnDot1dBridgeEntry	1.3.6.1.4.1.1795.2.24.12.21.1.1.1.1		not-accessible	A list of information for the bridge.
MAC mpePdnDot1dBaseBridgeAddress	1.3.6.1.4.1.1795.2.24.12.21.1.1.1.1.1	MacAddress	read-only	The MAC address used by this bridge when it must be referred to in a unique fashion. It is recommended that this be the numerically smallest MAC address of all ports that belong to this bridge. However it is only required to be unique.
INT mpePdnDot1dBaseNumPorts	1.3.6.1.4.1.1795.2.24.12.21.1.1.1.1.2	INTEGER	read-only	The number of ports controlled by this bridging entity.
INT mpePdnDot1dBaseType	1.3.6.1.4.1.1795.2.24.12.21.1.1.1.1.3	INTEGER	read-only	Indicates what type of bridging this bridge can perform.
CTR mpePdnDot1dTpLearnedEntryDiscards	1.3.6.1.4.1.1795.2.24.12.21.1.1.1.1.4	Counter	read-only	The total number of Forwarding Database entries, which have been or would have been learned, but have been discarded due to a lack of space to store them in the Forwarding Database. If this counter is increasing, it indicates that the Forwarding Database is regularly becoming full (a condition which has unpleasant performance effects on the subnetwork). If this counter has a significant value but is not presently increasing, it indicates that the problem has been occurring but is not persistent.
INT mpePdnDot1dTpAgeingTime	1.3.6.1.4.1.1795.2.24.12.21.1.1.1.1.5	INTEGER	read-write	The timeout period in seconds for aging out dynamically learned forwarding information. 802.1D-1990 recommends a default of 300 seconds.
INT mpePdnDot1dTpAgeingCleanupTime	1.3.6.1.4.1.1795.2.24.12.21.1.1.1.1.6	INTEGER	read-write	mpePdnDot1dTpEntryAgeingCleanupupTime is the length of time before an entry is removed from the bridge . This parameter is typically set to one-half of the bridge Ageing time.
mpePdnDot1dTpFdb	1.3.6.1.4.1.1795.2.24.12.21.1.2
mpePdnDot1dTpFdbTable	1.3.6.1.4.1.1795.2.24.12.21.1.2.1		not-accessible	A table that contains information about unicast entries for which the bridge has forwarding and/or filtering information. This information is used by the transparent bridging function in determining how to propagate a received frame.
mpePdnDot1dTpFdbEntry	1.3.6.1.4.1.1795.2.24.12.21.1.2.1.1		not-accessible	Information about a specific unicast MAC address for which the bridge has some forwarding and/or filtering information.
MAC mpePdnDot1dTpFdbAddress	1.3.6.1.4.1.1795.2.24.12.21.1.2.1.1.1	MacAddress	read-only	A unicast MAC address for which the bridge has forwarding and/or filtering information.
VNI mpePdnDot1dTpFdbVnidId	1.3.6.1.4.1.1795.2.24.12.21.1.2.1.1.2	VnidRange	read-only	The VNID Id number of the virtual network for which the bridge has forwarding and/or filtering information.
INT mpePdnDot1dTpFdbIfIndex	1.3.6.1.4.1.1795.2.24.12.21.1.2.1.1.3	INTEGER	read-only	The ifIndex of the interface associated with the mac address and vlan-id.
INT mpePdnDot1dTpFdbStatus	1.3.6.1.4.1.1795.2.24.12.21.1.2.1.1.4	INTEGER	read-only	The status of this entry. The meanings of the values are: other(1) : none of the following. This would include the case where some other MIB object (not the corresponding instance of mpePdnDot1dTpFdbPort, nor an entry in the mpePdnDot1dStaticTable) in being used to determine if and how frames addressed to the value of the corresponding instance of mpePdnDot1dTpFdbAddress are being forwarded. invalid(2) : this entry is not longer valid (e.g., it was learned but has since aged-out), but has not yet been flushed from the table. learned(3) : the value of the corresponding instance of mpePdnDot1dTpFdbPort was learned, and is being used. self(4) : the value of the corresponding instance of mpePdnDot1dTpFdbAddress represents one of the bridge's addresses. The corresponding instance of mpePdnDot1dTpFdbPort indicates which of the bridge's ports has this address. mgmt(5) : the value of the corresponding instance of mpePdnDot1dTpFdbAddress is also the value of an existing instance of mpePdnDot1dStaticAddress.
INT mpePdnDot1dTpFdbAgeTime	1.3.6.1.4.1.1795.2.24.12.21.1.2.1.1.5	INTEGER	read-only	The amount of time in seconds that this entry is in the Bridge table
INT mpePdnDot1dTpFdbFlags	1.3.6.1.4.1.1795.2.24.12.21.1.2.1.1.6	INTEGER	read-only	This object indicates the type of entry in the Bridge table. permanentDHCP -- Entry added due to DHCP client permanentCONFIGURED -- Entry added by User dynamic -- Dynamic Entry
mpePdnBridgeMIBTraps	1.3.6.1.4.1.1795.2.24.12.21.2

RFC description

Paradyne MPE (Multi-Protocol Encapsulation) bridge management; defines bridge operations and forwarding database objects.

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Download PDN-MPE-BRIDGE-MIB

What Is PDN-MPE-BRIDGE-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description