APDD-MIB

MIB Reference — IPNetwork Monitor · Updated September 09, 2026

All MIBsAPDD-MIB

Organization: Acme Packet, Inc

Last Updated: 2011-06-08

Category: Telephony and VoIP, Vendor: Acme Packet

Description: Acme Packet SBC denial-of-service detection and dynamic device management.

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What Is APDD-MIB?

APDD-MIB is a vendor-specific (Acme Packet, now part of Oracle) MIB for the Policy Director / Denial-of-Service Detection feature on Acme Packet Session Border Controllers (SBCs), used in VoIP/SIP signaling security. It exposes performance-counter and threshold data around transaction and session rates per interface and per detection agent, aimed at identifying DoS/flood conditions rather than general hardware inventory. Its primary monitoring value is software/traffic-health status: current, high, and low transaction rates, active/high/total session counts over rolling periods, and session-initiation rates, which together reveal abnormal traffic spikes indicative of an attack or overload condition. It is a self-contained private MIB with no strong dependency beyond standard SNMPv2-SMI conventions, though it is deployed alongside other Acme Packet SBC MIBs covering realms and media. It is typically deployed in telecom/carrier network operations centers monitoring SBCs for security and capacity thresholds. Engineers can download the APDD-MIB file directly to load it into their MIB browser.

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

  • Acme Packet (Oracle) Session Border Controller

Monitoring Examples

An operator would poll apDdCurrentTransRate against apDdHighTransRate and apDdLowTransRate for a given apDdInterfaceNumber to detect when live signaling traffic approaches configured DoS thresholds. apDdSessionPeriodActive and apDdSessionPeriodHigh reveal how many sessions are currently active versus the historical peak for that monitoring period, while apDdSessionLifeTotal and apDdSessionLifeHigh track cumulative and peak session counts over the SBC's uptime. A sudden jump in apDdSessInitPeriodActive relative to baseline would flag a session-initiation flood being investigated by the apDdAgentNumber-identified detection agent.

What Can Be Monitored

  • current/high/low transaction rate
  • active sessions per period
  • peak sessions per period
  • total lifetime sessions
  • peak lifetime sessions per interface
  • session initiation rate
Imported Objects

From ACMEPACKET-SMI

acmepacketMgmtOBJECT-IDENTITY

From ACMEPACKET-TC

ApTransportType

From SNMPv2-CONF

MODULE-COMPLIANCE
NOTIFICATION-GROUP
OBJECT-GROUP

From SNMPv2-SMI

Counter32
Gauge32
Integer32
MODULE-IDENTITY
NOTIFICATION-TYPE
OBJECT-TYPE

From SNMPv2-TC

DisplayString
TEXTUAL-CONVENTION

How to Use in IPNetwork Monitor

Example using apDdClientTransCPHigh OID:

Select an Acme Packet (Oracle) Session Border Controller 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 apDdClientTransCPHigh 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. It reports the maximum value of apDdClientTransCPActive in the current period (high water mark). 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 value climbs close to a level you consider a practical ceiling for this device, since a rising peak often signals sustained load growth worth planning capacity around. Click Finish to create the monitor; you can adjust any parameter later.
OIDs

RFC description

Diameter Director policy and transaction management for Acme Packet devices.

Start monitoring Acme Packet (Oracle) Session Border Controller 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 APDD-MIB