CTATX-MIB

MIB Reference — IPNetwork Monitor · Updated September 09, 2026

All MIBsCTATX-MIB

Category: ATM, Vendor: Cabletron/Enterasys

Description: Manages Cabletron ATX module hardware configuration, port mappings, and interface operational status.

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What Is CTATX-MIB?

CTATX-MIB is a Cabletron (later Enterasys) MIB for managing an ATX module's hardware configuration, port mappings, and interface operational status, though the sample objects available are dominated by a PPE (packet processing engine) memory-management subtree covering OSPF, ICMP, RIP, BOOTP, SNMP, and TFTP PDU memory allocation and failure counters. This gives it a strong software/resource-health monitoring role: tracking memory allocation failures for specific protocol PDU types reveals resource exhaustion in the device's control-plane protocol stack. Beyond memory counters, the module also covers port/interface configuration and status typical of a switch line module. It relies on general SNMPv2 SMI conventions and likely coexists with standard IF-MIB for baseline interface status. It is deployed in legacy Cabletron/Enterasys switch chassis using ATX modules, where CTATX-MIB SNMP monitoring of the PPE memory counters reveals control-plane resource exhaustion.

IPNetwork Monitor allows you to monitor SNMP objects defined in CTATX-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/Enterasys ATX switch modules

Monitoring Examples

An administrator would poll ppeOspfPduMemoryFailures and ppeOspfPduMemoryAllocs together to see whether OSPF PDU processing is running low on memory, and compare against ppeIcmpPduMemoryFailures, ppeRipPduMemoryFailures, ppeBootpPduMemoryFailures, ppeSnmpPduMemoryFailures, and ppeTftpPduMemoryFailures to determine whether the problem is protocol-specific or system-wide memory pressure. A rising trend in any of these *MemoryFailures counters, especially ppeSnmpPduMemoryFailures, would explain why the device is becoming unresponsive to management or routing protocol traffic. This points to control-plane resource exhaustion rather than a link-layer fault.

What Can Be Monitored

  • OSPF PDU memory allocations and failures
  • ICMP PDU memory allocations and failures
  • RIP PDU memory allocations and failures
  • BOOTP PDU memory allocations and failures
  • SNMP PDU memory allocations and failures
  • TFTP PDU memory allocations and failures
Imported Objects

From RFC-1212

OBJECT-TYPE

From RFC1155-SMI

Counter
Gauge
IpAddress
TimeTicks
enterprises

From RFC1213-MIB

DisplayString
OIDs

RFC description

Cabletron ATX MIB for managing system configuration and network protocol settings.

Start monitoring Cabletron/Enterasys ATX switch module 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 CTATX-MIB