SigComp Server
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SigComp Server Test Suite Data Sheet
Test Suite:
SigComp Server Test Suite
Direction:
Server

Signaling Compression (SigComp) is a solution for compressing messages generated by application protocols such as the Session Initiation Protocol (SIP) and the Real Time Streaming Protocol (RTSP). The decompression functionality is provided by a Universal Decompressor Virtual Machine (UDVM) which provides an instruction set optimised for decompression algorithms. The bytecode for decompressing the compressed message is transmitted with the message.

Used specifications

Specification
Title
RFC3320

Signaling Compression (SigComp)

RFC3485

The Session Initiation Protocol (SIP) and Session Description Protocol (SDP) Static Dictionary for Signaling Compression (SigComp)

RFC4464

Signaling Compression (SigComp) Users' Guide

RFC4465

Signaling Compression (SigComp) Torture Tests

RFC4896

Signaling Compression (SigComp) Corrections and Clarifications

Tool-specific information

Tested messages
Specifications
Notes
SigComp message
RFC3320

Supported features
Specification
Notes
UDP Transport
RFC3320
TCP Transport
RFC3320
Compressor
RFC3320
Uses DEFLATE compression algorithm.
UDVM
RFC3320
State Handler
RFC3320
SIP and SDP Static Dictionary
RFC3485

Unsupported features
Specification
Notes
Feedback mechanism
RFC3320
Suite doesn't include feedback request in SigComp messages and doesn't handle request if it receives one in SigComp message.
Additional SigComp Mechanisms
RFC4464
DEFLATE UDVM bytecode used in suite. No other parts of the RFC are implemented.
Test tool general features
  • Fully automated black-box negative testing
  • Ready-made test cases
  • Written in Java(tm)
  • GUI command line remote interface modes
  • Instrumentation (health-check) capability
  • Support and maintenance
  • Comprehensive user documentation
  • Results reporting and analysis