{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9680880","patent":{"patent_number":"US-9680880","title":"Method and apparatus for supporting IP multicast","assignee":null,"inventors":[],"filing_date":"2006-07-11T00:00:00.000Z","publication_date":"2017-06-13T00:00:00.000Z","cpc_codes":["H04L","H04L","H04L","H04L","H04L"],"num_claims":21,"abstract":"The invention includes a method and apparatus for configuring legacy nodes to support multicast functions. The method includes determining, in response to a request for a first user device to join a multicast group, whether any node in a multicast path between the first user device and a second user device comprises a legacy node and forming, in response to a determination that a node in the multicast path is a legacy node, a message adapted for configuring the legacy node to start forwarding multicast traffic from a first interface to a second interface of the legacy node. The legacy node may be configured to stop forwarding multicast traffic from the first interface of the legacy node to the second interface of the legacy node. The legacy node may be configured to start/stop forwarding traffic from one or more input interfaces to one or more output interfaces."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method and apparatus for supporting IP multicast","description":"The invention includes a method and apparatus for configuring legacy nodes to support multicast functions. The method includes determining, in response to a request for a first user device to join a m","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9680880","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-9680880","citation_suggestion":"Patentable. \"Method and apparatus for supporting IP multicast\" (US-9680880). https://patentable.app/patents/US-9680880","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9680880","json":"https://patentable.app/api/llm-context/US-9680880","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T12:37:31.446Z"}