CTRON-AppleTalk-ROUTER-MIB

MIB Reference — IPNetwork Monitor · Updated September 09, 2026

All MIBsCTRON-AppleTalk-ROUTER-MIB

Category: Protocol: AppleTalk, Technology: Routing, Vendor: Cabletron

Description: Manages AppleTalk routing tables, zones, and protocol statistics on Cabletron routers.

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What Is CTRON-AppleTalk-ROUTER-MIB?

CTRON-AppleTalk-ROUTER-MIB is a Cabletron Systems MIB for managing AppleTalk routing on Cabletron network routers, exposing routing tables, zone information, and protocol statistics for the legacy AppleTalk network protocol. It provides system-level status objects for the AppleTalk router process and its forwarding counter subsystem, alongside version and revision information. This MIB is used to monitor the software status of the AppleTalk routing process, with objects like nwAtSysAdminSTATUS/nwAtSysOperSTATUS indicating whether AppleTalk routing is administratively enabled and actually running, nwAtSysOperationalTime tracking process uptime, and nwAtFwdCtrInPkts providing forwarding traffic counters to detect abnormal traffic levels or a stalled forwarding process. It is a legacy vendor-specific MIB with no apparent dependency on other MIBs, tied to Cabletron's own router architecture. It was typically deployed in 1990s-era mixed AppleTalk/IP enterprise networks using Cabletron routing equipment to route AppleTalk traffic between Macintosh network segments. Network engineers evaluating or troubleshooting this functionality can download the CTRON-AppleTalk-ROUTER-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in CTRON-AppleTalk-ROUTER-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

  • Cabletron Systems router (AppleTalk-capable)

Monitoring Examples

An operator would poll nwAtSysAdminSTATUS against nwAtSysOperSTATUS to confirm the AppleTalk routing process is both enabled and actually operational, and check nwAtSysOperationalTime to see how long it has been running since nwAtSysAdminReset. Monitoring nwAtFwdCtrInPkts alongside nwAtFwdCtrOperationalTime would reveal whether the forwarding counter subsystem is actively counting traffic or has stalled, which combined with nwAtSysVersion would help confirm the router is running expected software before troubleshooting a routing outage.

What Can Be Monitored

  • AppleTalk routing admin/operational status
  • router operational uptime
  • forwarding counter admin status and uptime
  • inbound forwarded packet counts
  • router software version
Imported Objects

From RFC-1212

OBJECT-TYPE

From RFC1155-SMI

Counter
Gauge
TimeTicks

From RFC1213-MIB

DisplayString
PhysAddress

From ROUTER-OIDS

nwRouterOBJECT-IDENTITY
nwRtrProtoSuitesOBJECT-IDENTITY
OIDs

RFC description

Provides AppleTalk routing services including system configuration, forwarding, and topology for Cabletron routers.

Start monitoring Cabletron Systems router (AppleTalk, legacy) 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 CTRON-AppleTalk-ROUTER-MIB