{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9628376","patent":{"patent_number":"US-9628376","title":"Communication system, switch, controller, method for constructing a control channel and program","assignee":null,"inventors":[],"filing_date":"2014-02-25T00:00:00.000Z","publication_date":"2017-04-18T00:00:00.000Z","cpc_codes":["H04L","H04L","H04L","H04L","H04L","H04L","H04L","H04L","H04L","H04L"],"num_claims":9,"abstract":"The controller sets control information in a switch over a control channel to control the switch. The switch includes a packet processing unit that processes a packet received based on control information as set from the controller, and a Layer-2 forwarding unit that learns an input port of a control packet between the controller and a neighboring switch or switches and that forwards the control packet on the basis of learned results. The switch also includes an alternative control channel construction unit that, on detecting a disconnection of the control channel, sends a packet requesting a resolution of a Layer-2 address of the controller to the neighboring switch or switches. The alternative control channel construction unit acquires the Layer-2 address from the controller via the neighboring switch or switches and transmits the control packet to the controller using the Layer-2 address acquired to construct a second control channel between the switch and the controller."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Communication system, switch, controller, method for constructing a control channel and program","description":"The controller sets control information in a switch over a control channel to control the switch. The switch includes a packet processing unit that processes a packet received based on control informa","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9628376","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-9628376","citation_suggestion":"Patentable. \"Communication system, switch, controller, method for constructing a control channel and program\" (US-9628376). https://patentable.app/patents/US-9628376","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9628376","json":"https://patentable.app/api/llm-context/US-9628376","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T10:15:59.698Z"}