DOT12-RPTR-MIB

MIB Reference — IPNetwork Monitor · Updated September 09, 2026

All MIBsDOT12-RPTR-MIB

Organization: IETF 100VG-AnyLAN Working Group

Last Updated: 1997-05-19

Category: Network Interfaces

Description: Defines managed objects for IEEE 802.12 (100VG-AnyLAN) repeater devices, providing monitoring and control of demand-priority network repeaters.

IPNetwork Monitor uses several OIDs from this MIB in network discovery and polling the applicable devices. Start monitoring DOT12-RPTR-MIB with a free 30-day trial of IPNetwork Monitor.

What Is DOT12-RPTR-MIB?

DOT12-RPTR-MIB is an IETF standard MIB for managing IEEE 802.12 (100VG-AnyLAN) repeater devices, a demand-priority networking technology from the mid-1990s that predates switched Ethernet's dominance. It defines vendor-neutral objects for monitoring and controlling these repeaters, generally covering per-port and per-repeater operational status, port state, and related demand-priority network health indicators typical of repeater-class MIBs (analogous to the IEEE 802.3 repeater MIB). As a legacy hardware-monitoring MIB, its role is to expose repeater/port hardware status, link presence, port enable/disable state, and error counters, so an admin can detect a failed or disconnected port on the repeater hub. It follows the general IETF pattern for LAN repeater MIBs and would sit alongside RFC 1516-style Ethernet repeater MIB conventions adapted for 802.12. It would have been deployed in legacy 100VG-AnyLAN network installations, a now largely obsolete technology. Engineers implementing or auditing this functionality typically reference the DOT12-RPTR-MIB RFC/standard documentation for the authoritative specification.

IPNetwork Monitor allows you to monitor SNMP objects defined in DOT12-RPTR-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

  • IEEE 802.12 (100VG-AnyLAN) repeater/hub
  • vendor-neutral, standards-based MIB, not tied to a specific manufacturer

Monitoring Examples

No sample objects were provided for this module, so specific object names cannot be cited. Based on the module description, a typical scenario would involve polling per-port operational status on the repeater to detect a port that has gone down or is reporting excessive errors, consistent with how comparable IEEE 802.3 repeater MIBs expose port health.

What Can Be Monitored

  • repeater port operational status
  • port enable/disable state
  • port error conditions
Imported Objects

From SNMPv2-CONF

MODULE-COMPLIANCE
NOTIFICATION-GROUP
OBJECT-GROUP

From SNMPv2-SMI

Counter32
Counter64
Integer32
MODULE-IDENTITY
NOTIFICATION-TYPE
OBJECT-TYPE
mib-2

From SNMPv2-TC

MacAddress
TimeStamp
TruthValue

How to Use in IPNetwork Monitor

Example using vgRptrMonTotalReadableFrames OID:

Select an IEEE 802.12 100VG-AnyLAN repeater/hub (vendor-neutral IETF standard) 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 vgRptrMonTotalReadableFrames 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 total number of good frames of valid frame length that have been received on all ports in this repeater. 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

MIB module for managing IEEE 802.12 (100VG-AnyLAN) repeaters.

Start monitoring IEEE 802.12 100VG-AnyLAN repeater/hub (vendor-neutral IETF standard) 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 DOT12-RPTR-MIB