SCTP-MIB

MIB Reference — IPNetwork Monitor · Updated October 06, 2026

All MIBs › SCTP-MIB

Organization: IETF SIGTRAN Working Group

Last Updated: 2004-09-02

Category: IP and Core Protocols

Description: Manages Stream Control Transmission Protocol (SCTP) implementations, providing association state, parameter configuration, and transport statistics.

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

What Is SCTP-MIB?

SCTP-MIB is a vendor-neutral IETF standards MIB (RFC 3873) for managing implementations of the Stream Control Transmission Protocol, a transport-layer protocol used in telecom signaling (e.g., SIGTRAN) and multi-homed reliable messaging. It exposes association-level state, configured parameters, and detailed transport statistics including established/aborted/shutdown association counts and chunk-level traffic counters. Its monitoring value is squarely on software/protocol health: tracking active vs. passive association establishment rates, checksum errors, and out-of-the-blue packets that reveal misconfigured peers, network corruption, or attack traffic. It is a self-contained transport-layer MIB with no dependency on other MIBs beyond the standard SNMPv2 SMI. It is typically deployed on SCTP-capable routers, telecom signaling gateways, and servers running SIGTRAN or multi-homed SCTP applications. Engineers researching sctp cisco reference this IETF MIB, the standard module vendors implement to expose SCTP association and endpoint statistics via SNMP.

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

  • vendor-neutral, standards-based MIB, not tied to a specific manufacturer
  • SCTP-capable routers and signaling gateways

Monitoring Examples

An operator would poll sctpCurrEstab to see the number of live SCTP associations, alongside sctpActiveEstabs and sctpPassiveEstabs to distinguish locally versus remotely initiated connections. A spike in sctpAborteds, sctpChecksumErrors, or sctpOutOfBlues alongside a drop in sctpCurrEstab would indicate transport-level instability, packet corruption, or a misbehaving peer. Chunk counters like sctpOutCtrlChunks, sctpInOrderChunks, and sctpInUnorderChunks help characterize the traffic mix on the SCTP stack.

What Can Be Monitored

  • current established associations
  • active vs passive association counts
  • aborted/shutdown associations
  • checksum errors
  • out-of-the-blue packets
  • control vs data chunk traffic
Imported Objects

From INET-ADDRESS-MIB

InetAddress
InetAddressType
InetPortNumber

From SNMPv2-CONF

MODULE-COMPLIANCE
OBJECT-GROUP

From SNMPv2-SMI

Counter32
Counter64
Gauge32
Integer32
MODULE-IDENTITY
OBJECT-TYPE
Unsigned32
mib-2

From SNMPv2-TC

TimeStamp
TruthValue

How to Use in IPNetwork Monitor

Example using sctpActiveEstabs OID:

Select a device implementing SCTP-MIB 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 sctpActiveEstabs into the Find box to locate it in the OID tree, then select it and click OK. The number of times that associations have made a direct transition to the ESTABLISHED state from the COOKIE-ECHOED state: COOKIE-ECHOED -> ESTABLISHED. 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

SCTP (Stream Control Transmission Protocol) implementation management with association, connection, and statistics objects.

Start monitoring vendor-neutral, standards-based MIB, SCTP-capable routers and signaling gateways (association/transport statistics) 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 SCTP-MIB