A3COM-HUAWEI-SNA-DLSW-EXT-MIB

MIB Reference — IPNetwork Monitor · Updated September 09, 2026

All MIBsA3COM-HUAWEI-SNA-DLSW-EXT-MIB

Organization: Huawei-3com Technologies co.,Ltd.

Last Updated: 2005-07-20

Category: SNA and Legacy Protocols, Vendor: H3C/HH3C

Description: Provides H3C/3Com vendor extensions for Data Link Switching (DLSw) management, augmenting the standard DLSw MIB with proprietary peer and circuit objects.

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What Is A3COM-HUAWEI-SNA-DLSW-EXT-MIB?

A3COM-HUAWEI-SNA-DLSW-EXT-MIB is a Huawei-3Com (H3C) enterprise MIB that extends the standard Data Link Switching MIB (DLSW-MIB, RFC 2024) with vendor-specific objects for managing DLSw peer connections, source bridging, QLLC, SDLC, LLC2, and reachability caching on H3C routers. Its h3cdeNode group provides peer-level tuning such as h3cdeNodePriority, h3cdeNodeInitPacingWindow/MaxPacingWindow, and h3cdeNodeKeepAliveInterval, while h3cdeTConnConfigTable augments DLSw-MIB's dlswTConnConfigEntry with H3C-specific transport connection settings like h3cdeTConnConfigBackup and h3cdeTConnConfigBackupTAddr. The h3cdeTConnOperTable exposes runtime Counter32 statistics — h3cdeTConnOperRecvPkts, h3cdeTConnOperSendPkts, and h3cdeTConnOperDropPkts — per transport connection, giving direct visibility into DLSw peer traffic and packet loss, alongside h3cdeBridgeTable, h3cdeQllcTable, h3cdeSdlcTable, and h3cdeLlc2Table for the various encapsulation/bridging submodes. It depends on the base DLSW-MIB for its indexing entries (dlswTConnConfigEntry, dlswTConnOperEntry, dlswTConnTcpConfigEntry) and is deployed on H3C/Huawei-3Com routers bridging SNA/legacy traffic over IP via DLSw peer connections. Note the input hint described this MIB in generic H3C/3Com DLSw-extension terms, but the source module's copyright and h3cCommon OID registration point identify it specifically as a Huawei-3Com (H3C) joint-venture MIB rather than a 3Com-only or Huawei-only module, and its official title is the A3COM-HUAWEI-SNA-DLSW-EXT-MIB MIB Browser reference used by engineers configuring these peers.

IPNetwork Monitor allows you to monitor SNMP objects defined in A3COM-HUAWEI-SNA-DLSW-EXT-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-3Com (H3C) routers running Data Link Switching (DLSw) peer connections

Monitoring Examples

An operator polls h3cdeTConnOperTable to review h3cdeTConnOperRecvPkts, h3cdeTConnOperSendPkts, and h3cdeTConnOperDropPkts for a given DLSw transport connection; a rising h3cdeTConnOperDropPkts counter alongside a low h3cdeTConnOperUpTime would indicate an unstable or congested DLSw peer connection dropping SNA/NetBIOS traffic.

What Can Be Monitored

  • DLSw peer priority and pacing window configuration
  • transport connection (TConn) config and backup settings
  • per-connection send/receive/drop packet counters
  • bridge/QLLC/SDLC/LLC2 submode tables
  • reachability cache entries
Imported Objects

From A3COM-HUAWEI-OID-MIB

h3cCommonOBJECT-IDENTITY

From DLSW-MIB

LFSize
MacAddressNC
TAddress
dlswTConnConfigEntryOBJECT-TYPE
dlswTConnOperEntryOBJECT-TYPE
dlswTConnTcpConfigEntryOBJECT-TYPE

From INET-ADDRESS-MIB

InetAddress
InetAddressType

From RFC1213-MIB

ifIndex

From SNMPv2-SMI

Counter32
Integer32
MODULE-IDENTITY
OBJECT-TYPE
TimeTicks

From SNMPv2-TC

RowStatus

How to Use in IPNetwork Monitor

Example using h3cdeTConnOperRecvPkts OID:

Select an H3C/3Com DLSw 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 h3cdeTConnOperRecvPkts 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. The number of Switch-to-Switch Protocol (SSP) messages received on this tcp transport connection. 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

3Com Huawei vendor-private extension MIB for SNA/DLSw (Data Link Switching) protocol management and bridging.

Start monitoring H3C/3Com DLSw 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-SNA-DLSW-EXT-MIB