{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8531976","patent":{"patent_number":"US-8531976","title":"Locating tunnel failure based on next-next hop connectivity in a computer network","assignee":null,"inventors":[],"filing_date":"2008-03-07T00:00:00.000Z","publication_date":"2013-09-10T00:00:00.000Z","cpc_codes":["H04L","H04L"],"num_claims":26,"abstract":"In one embodiment, a trigger is signaled to protect a tunnel from a head-end node to one or more tail-end nodes in a computer network via one or more intermediate nodes along the tunnel. One or more receiving nodes along the tunnel receive the trigger, and in response, establish a tunnel connectivity verification session from the receiving node to a corresponding downstream next-next-hop (NNHOP) node along the tunnel. Illustratively, the head-end node may thus recompute a new tunnel path excluding a path segment corresponding to a particular failed tunnel connectivity verification session."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Locating tunnel failure based on next-next hop connectivity in a computer network","description":"In one embodiment, a trigger is signaled to protect a tunnel from a head-end node to one or more tail-end nodes in a computer network via one or more intermediate nodes along the tunnel. One or more r","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8531976","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-8531976","citation_suggestion":"Patentable. \"Locating tunnel failure based on next-next hop connectivity in a computer network\" (US-8531976). https://patentable.app/patents/US-8531976","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8531976","json":"https://patentable.app/api/llm-context/US-8531976","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T09:22:31.074Z"}