PW-DRAFT04-MIB

MIB Reference — IPNetwork Monitor · Updated October 06, 2026

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Organization: Pseudo Wire Edge to Edge Emulation (PWE3) Working Group

Last Updated: 2004-02-03

Description: IETF PWE3 draft-04 base MIB for managing pseudo-wire virtual circuits over packet-switched networks, covering VC provisioning, status, and performance counters

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What Is PW-DRAFT04-MIB?

PW-DRAFT04-MIB is an early IETF PWE3 draft of the base Pseudo Wire management MIB, defining the generic object model for pseudo-wire virtual circuits emulated over any type of packet-switched network (later standardized as the PW-STD-MIB). It belongs to the MPLS/PWE3 standards area and covers pseudo-wire setup, administrative and operational status, and general performance counters common to all PW types, independent of the underlying PSN technology. As the foundational module in the PW MIB family it is primarily used to monitor the software-configured state of pseudo-wire services -- whether a VC is up, down, or in a testing state -- functioning as the equivalent of interface/link status monitoring for emulated circuits rather than exposing physical hardware sensors. It explicitly references the PWE3 architecture and signaling protocol drafts (LDP-based Martini pseudowire setup and L2TPv3) as its foundation, and technology-specific MIBs such as PW-ATM-MIB and PW-TDM-MIB build on top of it. It is typically deployed on MPLS or IP-based provider-edge routers that terminate Layer 2 circuit emulation services for carriers, and this PW-DRAFT04-MIB reference remains useful for understanding the object model that later PW-STD-MIB deployments inherited.

IPNetwork Monitor allows you to monitor SNMP objects defined in PW-DRAFT04-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

  • MPLS/PSN provider-edge router
  • vendor-neutral IETF draft MIB, not tied to a specific manufacturer

Monitoring Examples

Because no sample objects were provided for this draft module and it predates the finalized PW-STD-MIB naming, a concrete object-level monitoring example cannot be given without inventing names not confirmed in the source; in practice an operator would poll the generic PW table's admin/oper status and VC type columns (mirrored later as pwTable/pwEntry) to detect a pseudo-wire dropping to a down or not-forwarding state. Any per-technology counters (ATM, TDM, Ethernet) are supplied by the companion PW-type-specific MIBs layered on top of this base module.

Imported Objects

From HC-PerfHist-TC-MIB

HCPerfCurrentCount
HCPerfIntervalCount
HCPerfTimeElapsed
HCPerfValidIntervals

From IF-MIB

InterfaceIndexOrZero

From INET-ADDRESS-MIB

InetAddress
InetAddressType

From PerfHist-TC-MIB

PerfCurrentCount
PerfIntervalCount

From PW-TC-DRAFT04-MIB

PwGroupID
PwOperStatus
PwVcAttachmentIdentifierType
PwVcCapabilities
PwVcCwStatus
PwVcFragSize
PwVcFragStatus
PwVcIDType
PwVcIndexType
PwVcStatus
PwVcType
pwStdMIBOBJECT-IDENTITY

From SNMP-FRAMEWORK-MIB

SnmpAdminString

From SNMPv2-CONF

MODULE-COMPLIANCE
NOTIFICATION-GROUP
OBJECT-GROUP

From SNMPv2-SMI

Counter32
Counter64
Integer32
MODULE-IDENTITY
NOTIFICATION-TYPE
OBJECT-TYPE
TimeTicks
Unsigned32

From SNMPv2-TC

RowStatus
StorageType
TimeStamp
TruthValue

How to Use in IPNetwork Monitor

Example using pwVcPerfTotalInHCPackets OID:

Select an MPLS/PSN provider-edge router, vendor-neutral IETF draft MIB (base pseudowire model) as the target host to create a monitor — the SNMP service should be up and running on it. Click New Monitor, then check SNMP Custom on the Favorites tab, click Next, and confirm the host. On the next page, click Select... to open the built-in SNMP MIB Browser and type pwVcPerfTotalInHCPackets into the Find box to locate it in the OID tree, selecting the specific row/instance you want to monitor since this is a table column, then select it and click OK. It reports the high capacity counter for the total number of packets received by the PW (from the PSN). On the monitor's Main parameters page you can set the target's SNMP port (default 161), credentials, polling interval, and other settings — see the SNMP Monitor help for details. On the State conditions and Alerting tabs, configure when the monitor should change state and trigger an alert; since this is a Counter64-type OID, Value bounds is the most useful condition here — trigger an alert if the counter increases sharply between polls relative to its normal baseline, since an unexpected spike often reflects a real change in traffic or activity. Click Finish to create the monitor; you can adjust any parameter later.
OIDs

RFC description

Pseudo-wire service emulation monitoring including tunnel and session statistics per RFC PWE3.

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Download PW-DRAFT04-MIB