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+---
+title: OMCI PCAP Analyzer
+has_children: false
+description: Tool for semantic analysis of GPON/XGS-PON OMCI PCAP files
+layout: default
+---
+
+# omcipcap
+
+[omcipcap](https://github.com/RainbowCloudLabs/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](https://github.com/RainbowCloudLabs/omcipcap)
+- [PyPI](https://pypi.org/project/omcipcap/)