A3COM-HUAWEI-MPLS-LDP-MIB

MIB Reference — IPNetwork Monitor · Updated September 09, 2026

All MIBsA3COM-HUAWEI-MPLS-LDP-MIB

Organization: HuaweiMPLS Working Group

Last Updated: 1999-06-30

Category: MPLS and Traffic Engineering, Vendor: H3C/HH3C

Description: Manages the MPLS Label Distribution Protocol (LDP) on H3C/3Com devices, including LDP session state, label bindings, and FEC-to-label mappings.

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What Is A3COM-HUAWEI-MPLS-LDP-MIB?

A3COM-HUAWEI-MPLS-LDP-MIB is a vendor MIB, derived from the early IETF MPLS LDP MIB draft, that manages the Label Distribution Protocol on Huawei-based routing platforms (the module is entirely authored under the hwMpls/hwMplsLdp object tree, reflecting the joint Huawei-3Com naming used for this product line rather than any distinct 3Com-specific content). It models the LDP LSR through hwMplsLdpLsrIncarnTable (loop detection/prevention, label retention mode, hop-count limit), per-interface LDP instances via hwMplsLdpEntityTable and hwMplsLdpEntityIfTable, discovered neighbors in hwMplsLdpPeerTable (peer address, keepalive timer, label distribution method), and session-establishment counters in hwMplsLdpEntityStatsTable such as hwMplsLdpAttemptedSessions. It exposes both configuration state (label ranges, retention policy, timers) and operational counters, making it useful for diagnosing why LDP sessions to a neighbor fail to establish or why label bindings are not being learned as expected. It depends on the underlying MPLS forwarding infrastructure that LDP-distributed labels ultimately populate, and is deployed on Huawei/H3C routers acting as LSRs in an MPLS network. Network engineers troubleshooting LDP adjacencies on these platforms can download the A3COM-HUAWEI-MPLS-LDP-MIB file for their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in A3COM-HUAWEI-MPLS-LDP-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

  • Huawei/H3C MPLS-capable routers (LSRs)

Monitoring Examples

An operator polls hwMplsLdpPeerTable to confirm a peer's hwMplsLdpPeerID and hwMplsLdpPeerKeepAliveHoldTimer are as expected, then checks hwMplsLdpAttemptedSessions in hwMplsLdpEntityStatsTable; a rising attempted-session count with no corresponding entry appearing in the peer table indicates the LDP session to that neighbor is repeatedly failing to establish.

What Can Be Monitored

  • LDP session attempt/establishment counters
  • discovered peer table entries and keepalive timers
  • label retention mode and loop detection/prevention settings
  • per-interface LDP entity configuration
  • ATM label range allocation for entities and peers
Imported Objects

From A3COM-HUAWEI-OID-MIB

huaweiMgmtOBJECT-IDENTITY
hwMplsOBJECT-IDENTITY

From SNMPv2-CONF

MODULE-COMPLIANCE
NOTIFICATION-GROUP
OBJECT-GROUP

From SNMPv2-SMI

Counter32
Integer32
IpAddress
MODULE-IDENTITY
NOTIFICATION-TYPE
OBJECT-TYPE
Unsigned32

From SNMPv2-TC

RowStatus
TEXTUAL-CONVENTION
TimeInterval
TruthValue

How to Use in IPNetwork Monitor

Example using hwMplsLdpAttemptedSessions OID:

Select a Huawei/H3C MPLS router 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 hwMplsLdpAttemptedSessions 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 a count of the total attempted sessions for this LDP Entity. 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 Counter32-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

Huawei MPLS Label Distribution Protocol configuration for label switching router nodes and sessions.

Start monitoring Huawei/H3C MPLS routers 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 A3COM-HUAWEI-MPLS-LDP-MIB