PG-BRIDGE-MIB

MIB Reference — IPNetwork Monitor · Updated September 09, 2026

All MIBsPG-BRIDGE-MIB

Organization: Pairgain Technology

Last Updated: 1998-12-17

Category: DSL and Broadband

Description: Manages PairGain xDSL bridge function, including MAC forwarding, port state, and VLAN parameters.

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What Is PG-BRIDGE-MIB?

This is a proprietary PairGain MIB for xDSL access device bridge functionality, managing MAC-layer forwarding, per-session bridge port state, and VLAN parameters tied to ATM VPI/VCI sessions. It exposes a session-port table mapping ATM VPI/VCI/slot/port identifiers to bridge-port and router-group-interface associations, plus VLAN identifiers, alongside references to the standard dot1d bridge base objects. It is largely a configuration/topology MIB useful for monitoring the software-level mapping between DSL ATM sessions and Ethernet bridge ports, confirming a subscriber's session is correctly bridged and VLAN-tagged, which reveals provisioning or connectivity faults when that mapping is missing or wrong. It explicitly builds on the standard BRIDGE-MIB (RFC 1493/4188) dot1dBase objects for the underlying bridge model. It is typically deployed on PairGain xDSL access multiplexers/bridges used by telcos for residential/business broadband access. Engineers can download the PG-BRIDGE-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in PG-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

  • PairGain xDSL access multiplexer/bridge

Monitoring Examples

Querying pgSessionPortTable using pgSessionPortVpi and pgSessionPortVci to locate a subscriber's ATM session, then checking pgSessionPortBridgePort and pgSessionPortVlanIdentifier confirms that session is bound to the correct bridge port and VLAN. If pgSessionPortIfIndex or pgSessionPortRouterGroupInterface does not resolve to the expected interface, that indicates a misconfigured or failed DSL bridging session for that subscriber.

What Can Be Monitored

  • ATM VPI/VCI to bridge port mapping
  • session VLAN identifier
  • bridge port association per session
  • router group interface binding
Imported Objects

From PAIRGAIN-COMMON-HD-MIB

pgainDSLAMOBJECT-IDENTITY

From RFC-1215

TRAP-TYPE

From RFC1155-SMI

Counter
IpAddress
TimeTicks

From RFC1213-MIB

ifIndex
mib-2

From SNMPv2-SMI

MODULE-IDENTITY
OBJECT-TYPE

From SNMPv2-TC

DisplayString
MacAddress
PhysAddress
RowStatus
TruthValue
OIDs

RFC description

Vendor-private MIB for bridge and access point management.

Start monitoring PairGain xDSL access multiplexer/bridge (ATM-session-to-bridge-port mapping) 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 PG-BRIDGE-MIB