{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11991070","patent":{"patent_number":"US-11991070","title":"Layer-2 path tracing","assignee":null,"inventors":[],"filing_date":"2022-01-04T00:00:00.000Z","publication_date":"2024-05-21T00:00:00.000Z","cpc_codes":["H04L","H04L","H04L","H04L","H04L","H04L","H04L","H04L","H04L"],"num_claims":20,"abstract":"A system for layer-2 path tracing is provided. During operation, the system can send, from an originating device, a layer-2 trace packet with a packet type in a layer-2 header of the layer-2 trace packet. The packet type can indicate the trace packet to be a tracing packet. The system can then receive a layer-2 response packet from a respective participating device, which supports layer-2 path tracing, on a path to a target device of the trace packet. Subsequently, the system can obtain, from a payload of the response packet, trace information of a forward path to the participating device traversed by the trace packet and a reverse path from the participating device traversed by the response packet. The trace information can identify one or more layer-2 devices along the forward and reverse paths, and include one or more layer-2 identifiers corresponding to the identified one or more layer-2 devices."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Layer-2 path tracing","description":"A system for layer-2 path tracing is provided. During operation, the system can send, from an originating device, a layer-2 trace packet with a packet type in a layer-2 header of the layer-2 trace pac","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11991070","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-11991070","citation_suggestion":"Patentable. \"Layer-2 path tracing\" (US-11991070). https://patentable.app/patents/US-11991070","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11991070","json":"https://patentable.app/api/llm-context/US-11991070","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T00:15:09.544Z"}