Python Diameter Stack¶

This Python package provides tools to create and parse Diameter Messages and AVPs, to communicate with diameter peers using the diameter base protocol and to write diameter applications, as defined in the Diameter Base rfc6733.

The diameter stack supports transports over both TCP and SCTP, with SCTP support provided by an optional depency on pysctp.

The provided Application and Node implementations handle the majority of the basic protocol-level operations automatically, such as managing peer tables, sending CER/CEA, DWR/DEA and disconnecting with DPR/DPA.

Functional overview¶

The package contains an extensive AVP dictionary and allows constructing AVPs and Diameter messages either manually, or by parsing network-received bytes. Message AVPs can be accessed directly as instance attributes.

The diameter package provides tools for:

Supported diameter application commands¶

The diameter stack provides a Python command class for the following application message types:

Diameter Base Protocol rfc3588, rfc6733

Abort-Session
Accounting
Capabilities-Exchange
Device-Watchdog
Disconnect-PeerConnection
Re-Auth
Session-Termination

Diameter Mobile IPv4 rfc4004

AA-Mobile-Node
Home-Agent-MIP

Diameter Network Access Server rfc4005, rfc7155

AA
Abort-Session
Accounting
Re-Auth
Session-Termination

Diameter Credit Control rf4006, rfc6733, 3GPP TS 32.299

Credit-Control, with full 3GPP specification support

Diameter Extensible Authentication Protocol (EAP) rfc4072

Diameter-EAP

The stack includes also a generic fallback Python class for every other message.