CXX25-MIB

MIB Reference — IPNetwork Monitor · Updated October 05, 2026

All MIBs › CXX25-MIB

Category: SNA and Legacy Protocols, Vendor: Aastra

Description: Manages X.25 packet-switched network protocol configuration and statistics for Aastra/ConvertedX equipment.

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What Is CXX25-MIB?

CXX25-MIB is a Memotec/Aastra CX product MIB for managing X.25 packet-switched network protocol configuration, statistics, and alarms on CX access equipment. It exposes objects controlling packet buffer pool thresholds, routing masks, billing parameters, network type, hunt-group rotation, and a set of X.25-specific alarm/event objects (x25Alarms, x25SapStatusEvent, x25ConfigErrorEvent), along with a logical link table for per-circuit status. It is used to monitor both the operational health of X.25 links and the software status of the X.25 stack, tracking buffer pool utilization against configured thresholds, watching for SAP status or configuration-error events that indicate a failing virtual circuit, and confirming reported x25SoftwareVersions match the expected release. It depends on CXProduct-SMI for OID placement and complements the device's other CX link MIBs (serial/Token Bus interfaces) that carry X.25 traffic. It was deployed on Memotec/Aastra CX WAN access devices connecting legacy X.25 packet networks, common in banking, retail, and government WAN environments of the era. Engineers can download the CXX25-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in CXX25-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

  • Memotec/Aastra CX WAN access device with X.25 interface

Monitoring Examples

An operator polling x25LowerPoolThreshold and x25UpperPoolThreshold against actual buffer usage can detect when the device is approaching packet buffer exhaustion, a precursor to dropped X.25 packets under load. Monitoring x25LogicalLinkTable entries reveals the status of individual X.25 logical links/circuits, while an x25ConfigErrorEvent trap flags a misconfigured DTE/DCE parameter on a specific link. Checking x25SoftwareVersions confirms which X.25 protocol stack revision is running, important when troubleshooting interoperability issues with a carrier's packet network.

What Can Be Monitored

  • packet buffer pool utilization
  • logical link/circuit status
  • X.25 alarms and configuration errors
  • hunt-group rotation
  • X.25 software version
Imported Objects

From CXProduct-SMI

Alias
SapIndex
ThruputClass
cxX25OBJECT-IDENTITY

From RFC-1212

OBJECT-TYPE

From RFC-1215

TRAP-TYPE

From RFC1155-SMI

Counter

From RFC1213-MIB

DisplayString
OIDs

RFC description

Manages X.25 virtual circuits, SAP configuration, and flow control thresholds for CX systems.

Start monitoring Memotec/Aastra X.25 WAN access devices 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 CXX25-MIB