omcipcap

omcipcap is an open-source GPON/XGS-PON OMCI semantic analysis framework for .pcap and .pcapng files.

It complements packet-level inspection tools such as Wireshark by reconstructing protocol-level engineering information from OMCI traffic.

Main features include:

• Detect OMCI provisioning failures and error responses
• Build and compare MIB snapshots
• Analyze Extended VLAN Tagging Operation Configuration Data (ME 171)
• Reconstruct T-CONT, GEM Port and Priority Queue relationships
• Generate OMCI topology information
• Produce structured JSON and Markdown output for automation and AI-assisted analysis
• Support vendor-specific Managed Entity definitions and semantic extensions

Project:

• GitHub
• PyPI